/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/Problem06_label40.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 07:10:20,705 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 07:10:20,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 07:10:20,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 07:10:20,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 07:10:20,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 07:10:20,755 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 07:10:20,759 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 07:10:20,761 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 07:10:20,764 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 07:10:20,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 07:10:20,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 07:10:20,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 07:10:20,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 07:10:20,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 07:10:20,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 07:10:20,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 07:10:20,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 07:10:20,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 07:10:20,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 07:10:20,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 07:10:20,785 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 07:10:20,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 07:10:20,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 07:10:20,797 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 07:10:20,798 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 07:10:20,798 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 07:10:20,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 07:10:20,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 07:10:20,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 07:10:20,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 07:10:20,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 07:10:20,807 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 07:10:20,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 07:10:20,809 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 07:10:20,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 07:10:20,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 07:10:20,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 07:10:20,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 07:10:20,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 07:10:20,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 07:10:20,817 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 07:10:20,838 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 07:10:20,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 07:10:20,839 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 07:10:20,839 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 07:10:20,840 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 07:10:20,840 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 07:10:20,840 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 07:10:20,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 07:10:20,840 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 07:10:20,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 07:10:20,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 07:10:20,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 07:10:20,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 07:10:20,841 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 07:10:20,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 07:10:20,842 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 07:10:20,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 07:10:20,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 07:10:20,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 07:10:20,842 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 07:10:20,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 07:10:20,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 07:10:20,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 07:10:20,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 07:10:20,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 07:10:20,844 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 07:10:20,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 07:10:20,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 07:10:20,844 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 07:10:20,844 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 07:10:21,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 07:10:21,126 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 07:10:21,130 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 07:10:21,131 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 07:10:21,131 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 07:10:21,132 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem06_label40.c [2020-10-13 07:10:21,200 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff43fcc48/fa245559b0d9419d8fcdeb9c12cae782/FLAGb994b22ec [2020-10-13 07:10:22,065 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 07:10:22,066 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem06_label40.c [2020-10-13 07:10:22,113 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff43fcc48/fa245559b0d9419d8fcdeb9c12cae782/FLAGb994b22ec [2020-10-13 07:10:22,483 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff43fcc48/fa245559b0d9419d8fcdeb9c12cae782 [2020-10-13 07:10:22,493 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 07:10:22,495 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 07:10:22,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 07:10:22,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 07:10:22,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 07:10:22,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:10:22" (1/1) ... [2020-10-13 07:10:22,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34fa96a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:22, skipping insertion in model container [2020-10-13 07:10:22,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:10:22" (1/1) ... [2020-10-13 07:10:22,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 07:10:22,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 07:10:25,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 07:10:25,192 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 07:10:26,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 07:10:26,780 INFO L208 MainTranslator]: Completed translation [2020-10-13 07:10:26,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:26 WrapperNode [2020-10-13 07:10:26,781 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 07:10:26,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 07:10:26,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 07:10:26,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 07:10:26,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:26" (1/1) ... [2020-10-13 07:10:26,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:26" (1/1) ... [2020-10-13 07:10:26,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:26" (1/1) ... [2020-10-13 07:10:26,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:26" (1/1) ... [2020-10-13 07:10:27,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:26" (1/1) ... [2020-10-13 07:10:27,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:26" (1/1) ... [2020-10-13 07:10:27,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:26" (1/1) ... [2020-10-13 07:10:27,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 07:10:27,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 07:10:27,203 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 07:10:27,203 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 07:10:27,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:26" (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 07:10:27,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 07:10:27,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 07:10:27,278 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 07:10:27,278 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-13 07:10:27,279 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-13 07:10:27,279 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-13 07:10:27,279 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2020-10-13 07:10:27,279 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 07:10:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 07:10:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-13 07:10:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-13 07:10:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-13 07:10:27,280 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2020-10-13 07:10:27,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 07:10:27,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 07:10:27,281 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 07:10:27,281 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 07:10:27,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 07:10:27,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 07:10:34,750 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 07:10:34,751 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 07:10:34,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:10:34 BoogieIcfgContainer [2020-10-13 07:10:34,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 07:10:34,771 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 07:10:34,771 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 07:10:34,774 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 07:10:34,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:10:22" (1/3) ... [2020-10-13 07:10:34,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@378907e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:10:34, skipping insertion in model container [2020-10-13 07:10:34,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:26" (2/3) ... [2020-10-13 07:10:34,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@378907e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:10:34, skipping insertion in model container [2020-10-13 07:10:34,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:10:34" (3/3) ... [2020-10-13 07:10:34,779 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem06_label40.c [2020-10-13 07:10:34,789 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 07:10:34,799 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 07:10:34,812 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 07:10:34,842 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 07:10:34,842 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 07:10:34,842 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 07:10:34,842 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 07:10:34,843 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 07:10:34,843 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 07:10:34,843 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 07:10:34,843 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 07:10:34,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states. [2020-10-13 07:10:34,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 986 [2020-10-13 07:10:34,960 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 07:10:34,962 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:10:34,963 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 07:10:34,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 07:10:34,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1767846672, now seen corresponding path program 1 times [2020-10-13 07:10:34,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 07:10:34,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [377706088] [2020-10-13 07:10:34,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 07:10:35,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:10:36,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:10:38,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:10:41,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:10:41,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1001 [2020-10-13 07:10:41,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 07:10:41,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5135 [2020-10-13 07:10:41,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:10:41,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 07:10:41,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 07:10:41,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 769 [2020-10-13 07:10:41,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-13 07:10:43,883 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-10-13 07:10:44,112 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2020-10-13 07:10:44,328 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2020-10-13 07:10:44,561 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2020-10-13 07:10:44,753 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-13 07:10:44,956 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-10-13 07:10:45,193 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-10-13 07:10:45,396 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-10-13 07:10:45,536 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 59 [2020-10-13 07:10:45,675 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 59 [2020-10-13 07:10:45,817 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 59 [2020-10-13 07:10:46,366 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 07:10:46,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 07:10:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:10:46,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:10:46,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:10:46,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 07:10:46,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:10:46,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 07:10:46,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:10:46,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 07:10:46,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 07:10:46,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 07:10:46,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 07:10:57,547 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 07:10:57,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [377706088] [2020-10-13 07:10:57,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 07:10:57,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-13 07:10:57,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447600139] [2020-10-13 07:10:57,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 07:10:57,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 07:10:57,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 07:10:57,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2020-10-13 07:10:57,573 INFO L87 Difference]: Start difference. First operand 1315 states. Second operand 18 states. [2020-10-13 07:10:57,978 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-13 07:10:58,663 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 166 [2020-10-13 07:10:59,335 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 166 [2020-10-13 07:11:00,073 WARN L193 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 174 [2020-10-13 07:11:03,910 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 173 [2020-10-13 07:11:07,209 WARN L193 SmtUtils]: Spent 976.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 172 [2020-10-13 07:11:09,673 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 163 [2020-10-13 07:11:10,401 WARN L193 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 169 [2020-10-13 07:11:11,413 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 168 [2020-10-13 07:11:20,771 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 161 [2020-10-13 07:11:21,516 WARN L193 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 166 [2020-10-13 07:11:24,664 WARN L193 SmtUtils]: Spent 954.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 165 [2020-10-13 07:11:31,812 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 159 [2020-10-13 07:11:32,526 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 163 [2020-10-13 07:11:34,937 WARN L193 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 162 [2020-10-13 07:11:47,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 07:11:47,518 INFO L93 Difference]: Finished difference Result 3396 states and 6359 transitions. [2020-10-13 07:11:47,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 07:11:47,522 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 985 [2020-10-13 07:11:47,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 07:11:47,563 INFO L225 Difference]: With dead ends: 3396 [2020-10-13 07:11:47,563 INFO L226 Difference]: Without dead ends: 2019 [2020-10-13 07:11:47,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=152, Invalid=904, Unknown=0, NotChecked=0, Total=1056 [2020-10-13 07:11:47,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2019 states. [2020-10-13 07:11:47,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2019 to 2019. [2020-10-13 07:11:47,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2019 states. [2020-10-13 07:11:47,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2019 states to 2019 states and 3053 transitions. [2020-10-13 07:11:47,723 INFO L78 Accepts]: Start accepts. Automaton has 2019 states and 3053 transitions. Word has length 985 [2020-10-13 07:11:47,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 07:11:47,726 INFO L479 AbstractCegarLoop]: Abstraction has 2019 states and 3053 transitions. [2020-10-13 07:11:47,726 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-13 07:11:47,726 INFO L276 IsEmpty]: Start isEmpty. Operand 2019 states and 3053 transitions. [2020-10-13 07:11:47,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1056 [2020-10-13 07:11:47,763 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 07:11:47,765 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:11:47,766 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 07:11:47,767 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 07:11:47,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 07:11:47,767 INFO L82 PathProgramCache]: Analyzing trace with hash 678443677, now seen corresponding path program 1 times [2020-10-13 07:11:47,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 07:11:47,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [199982759] [2020-10-13 07:11:47,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 07:11:48,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:11:48,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:11:49,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:11:53,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:11:53,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1073 [2020-10-13 07:11:53,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 07:11:53,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5160 [2020-10-13 07:11:53,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:11:53,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 07:11:53,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 07:11:53,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 07:11:53,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:11:53,813 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 07:11:53,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 07:11:53,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:11:53,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:11:53,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:11:53,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 07:11:53,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:11:53,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 07:11:53,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:11:53,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 07:11:53,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 07:11:53,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 07:11:53,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:11:53,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 07:11:53,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:11:53,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:11:54,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:11:54,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 07:11:54,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:11:54,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-13 07:11:54,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:11:54,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 07:11:54,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 07:11:54,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 07:11:54,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:11:55,683 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 07:11:55,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [199982759] [2020-10-13 07:11:55,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 07:11:55,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 07:11:55,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934123018] [2020-10-13 07:11:55,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 07:11:55,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 07:11:55,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 07:11:55,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 07:11:55,695 INFO L87 Difference]: Start difference. First operand 2019 states and 3053 transitions. Second operand 7 states. [2020-10-13 07:11:55,875 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 07:11:57,036 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-13 07:12:16,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 07:12:16,260 INFO L93 Difference]: Finished difference Result 4485 states and 7524 transitions. [2020-10-13 07:12:16,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 07:12:16,265 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1055 [2020-10-13 07:12:16,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 07:12:16,289 INFO L225 Difference]: With dead ends: 4485 [2020-10-13 07:12:16,289 INFO L226 Difference]: Without dead ends: 3226 [2020-10-13 07:12:16,293 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 07:12:16,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3226 states. [2020-10-13 07:12:16,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3226 to 3154. [2020-10-13 07:12:16,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3154 states. [2020-10-13 07:12:16,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3154 states to 3154 states and 4665 transitions. [2020-10-13 07:12:16,384 INFO L78 Accepts]: Start accepts. Automaton has 3154 states and 4665 transitions. Word has length 1055 [2020-10-13 07:12:16,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 07:12:16,385 INFO L479 AbstractCegarLoop]: Abstraction has 3154 states and 4665 transitions. [2020-10-13 07:12:16,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 07:12:16,385 INFO L276 IsEmpty]: Start isEmpty. Operand 3154 states and 4665 transitions. [2020-10-13 07:12:16,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1108 [2020-10-13 07:12:16,404 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 07:12:16,405 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:12:16,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 07:12:16,406 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 07:12:16,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 07:12:16,407 INFO L82 PathProgramCache]: Analyzing trace with hash -601974854, now seen corresponding path program 1 times [2020-10-13 07:12:16,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 07:12:16,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1038926980] [2020-10-13 07:12:16,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 07:12:16,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:12:17,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:12:17,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:12:21,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:12:21,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1125 [2020-10-13 07:12:21,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 07:12:21,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5085 [2020-10-13 07:12:21,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:12:21,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 07:12:21,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 07:12:21,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 552 [2020-10-13 07:12:21,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:12:23,154 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2020-10-13 07:12:23,390 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2020-10-13 07:12:23,556 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2020-10-13 07:12:23,755 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2020-10-13 07:12:23,917 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 62 [2020-10-13 07:12:24,554 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 07:12:24,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 07:12:24,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:12:24,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:12:24,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:12:24,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 07:12:24,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:12:24,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 07:12:24,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:12:24,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 07:12:24,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 07:12:24,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 07:12:24,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:12:24,823 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-13 07:12:24,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 07:12:24,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:12:24,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:12:25,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:12:25,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 07:12:25,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:12:25,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 366 [2020-10-13 07:12:25,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:12:25,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 07:12:25,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 07:12:25,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-13 07:12:25,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 07:12:32,824 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 2 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 07:12:32,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1038926980] [2020-10-13 07:12:32,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 07:12:32,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-13 07:12:32,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138886351] [2020-10-13 07:12:32,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-13 07:12:32,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 07:12:32,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-13 07:12:32,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2020-10-13 07:12:32,828 INFO L87 Difference]: Start difference. First operand 3154 states and 4665 transitions. Second operand 19 states. [2020-10-13 07:12:33,183 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-13 07:12:35,186 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2020-10-13 07:12:35,444 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2020-10-13 07:12:35,791 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2020-10-13 07:12:36,477 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 168 [2020-10-13 07:12:37,229 WARN L193 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 176 [2020-10-13 07:12:38,505 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 175 [2020-10-13 07:12:41,728 WARN L193 SmtUtils]: Spent 993.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 174 [2020-10-13 07:12:50,461 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 164 [2020-10-13 07:12:51,211 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 170 [2020-10-13 07:12:52,543 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 169 [2020-10-13 07:13:01,283 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 168 [2020-10-13 07:13:02,376 WARN L193 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 166 [2020-10-13 07:13:25,321 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2020-10-13 07:13:25,551 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2020-10-13 07:13:26,238 WARN L193 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 169 [2020-10-13 07:13:26,989 WARN L193 SmtUtils]: Spent 712.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 177 [2020-10-13 07:13:27,832 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 176 [2020-10-13 07:13:29,202 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 194 DAG size of output: 175 [2020-10-13 07:13:30,922 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 165 [2020-10-13 07:13:31,723 WARN L193 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 171 [2020-10-13 07:13:32,501 WARN L193 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 170 [2020-10-13 07:13:34,215 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 169 [2020-10-13 07:13:34,975 WARN L193 SmtUtils]: Spent 678.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 167 [2020-10-13 07:13:35,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 07:13:35,251 INFO L93 Difference]: Finished difference Result 8882 states and 14290 transitions. [2020-10-13 07:13:35,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-13 07:13:35,252 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 1107 [2020-10-13 07:13:35,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 07:13:35,282 INFO L225 Difference]: With dead ends: 8882 [2020-10-13 07:13:35,282 INFO L226 Difference]: Without dead ends: 6488 [2020-10-13 07:13:35,289 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 16.9s TimeCoverageRelationStatistics Valid=426, Invalid=1466, Unknown=0, NotChecked=0, Total=1892 [2020-10-13 07:13:35,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6488 states. [2020-10-13 07:13:35,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6488 to 5969. [2020-10-13 07:13:35,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5969 states. [2020-10-13 07:13:35,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5969 states to 5969 states and 8904 transitions. [2020-10-13 07:13:35,451 INFO L78 Accepts]: Start accepts. Automaton has 5969 states and 8904 transitions. Word has length 1107 [2020-10-13 07:13:35,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 07:13:35,453 INFO L479 AbstractCegarLoop]: Abstraction has 5969 states and 8904 transitions. [2020-10-13 07:13:35,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-13 07:13:35,453 INFO L276 IsEmpty]: Start isEmpty. Operand 5969 states and 8904 transitions. [2020-10-13 07:13:35,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1133 [2020-10-13 07:13:35,480 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 07:13:35,481 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:13:35,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 07:13:35,482 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 07:13:35,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 07:13:35,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1650661331, now seen corresponding path program 1 times [2020-10-13 07:13:35,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 07:13:35,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2045592950] [2020-10-13 07:13:35,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 07:13:35,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:13:36,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:13:36,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:13:40,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:13:40,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1152 [2020-10-13 07:13:40,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 07:13:40,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-13 07:13:40,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:13:40,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-13 07:13:40,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 07:13:40,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 891 [2020-10-13 07:13:40,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:13:47,207 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2020-10-13 07:13:47,462 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2020-10-13 07:13:47,723 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2020-10-13 07:13:47,997 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2020-10-13 07:13:48,275 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2020-10-13 07:13:48,562 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2020-10-13 07:13:48,920 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 82 [2020-10-13 07:13:49,247 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 73 [2020-10-13 07:13:49,641 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 74 [2020-10-13 07:13:50,047 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 74 [2020-10-13 07:13:50,470 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 68 [2020-10-13 07:13:50,844 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 60 [2020-10-13 07:13:51,044 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 37 [2020-10-13 07:13:51,234 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 39 [2020-10-13 07:13:51,459 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 41 [2020-10-13 07:13:51,661 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 07:13:51,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 07:13:51,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:13:51,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:13:51,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:13:51,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 07:13:51,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:13:51,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 07:13:51,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:13:51,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 07:13:51,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 07:13:51,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 07:13:51,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:13:51,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 07:13:51,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:13:51,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:13:52,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:13:52,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 07:13:52,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:13:52,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 340 [2020-10-13 07:13:52,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:13:52,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 07:13:52,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 07:13:52,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-13 07:13:52,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 07:13:52,748 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2020-10-13 07:13:52,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-13 07:13:52,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:13:52,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:13:52,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:13:52,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 07:13:52,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:13:52,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-13 07:13:52,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:13:52,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 07:13:52,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 07:13:52,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 07:13:52,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:13:53,464 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 95 [2020-10-13 07:13:54,052 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 123