/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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/ldv-regression/ex3_forlist.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 04:57:52,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 04:57:52,652 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 04:57:52,698 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 04:57:52,698 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 04:57:52,707 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 04:57:52,709 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 04:57:52,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 04:57:52,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 04:57:52,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 04:57:52,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 04:57:52,720 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 04:57:52,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 04:57:52,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 04:57:52,725 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 04:57:52,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 04:57:52,729 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 04:57:52,730 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 04:57:52,731 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 04:57:52,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 04:57:52,742 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 04:57:52,743 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 04:57:52,744 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 04:57:52,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 04:57:52,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 04:57:52,761 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 04:57:52,761 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 04:57:52,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 04:57:52,763 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 04:57:52,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 04:57:52,767 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 04:57:52,768 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 04:57:52,768 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 04:57:52,772 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 04:57:52,774 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 04:57:52,774 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 04:57:52,776 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 04:57:52,777 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 04:57:52,777 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 04:57:52,778 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 04:57:52,778 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 04:57:52,779 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 [2020-10-14 04:57:52,818 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 04:57:52,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 04:57:52,821 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 04:57:52,821 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 04:57:52,822 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 04:57:52,822 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 04:57:52,822 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 04:57:52,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 04:57:52,823 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 04:57:52,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 04:57:52,824 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 04:57:52,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 04:57:52,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 04:57:52,825 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 04:57:52,825 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 04:57:52,825 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 04:57:52,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 04:57:52,826 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 04:57:52,826 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 04:57:52,826 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 04:57:52,826 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 04:57:52,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 04:57:52,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 04:57:52,827 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 04:57:52,827 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 04:57:52,828 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 04:57:52,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 04:57:52,828 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 04:57:52,828 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 04:57:52,828 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 04:57:53,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 04:57:53,161 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 04:57:53,164 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 04:57:53,166 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 04:57:53,167 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 04:57:53,167 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/ex3_forlist.i [2020-10-14 04:57:53,251 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0a9bbc925/3ff5055d8b174cd08522b3ee1f4117a3/FLAG320af7737 [2020-10-14 04:57:53,726 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 04:57:53,727 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/ex3_forlist.i [2020-10-14 04:57:53,734 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0a9bbc925/3ff5055d8b174cd08522b3ee1f4117a3/FLAG320af7737 [2020-10-14 04:57:54,085 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0a9bbc925/3ff5055d8b174cd08522b3ee1f4117a3 [2020-10-14 04:57:54,094 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 04:57:54,096 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 04:57:54,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 04:57:54,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 04:57:54,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 04:57:54,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:57:54" (1/1) ... [2020-10-14 04:57:54,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@137e61c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:57:54, skipping insertion in model container [2020-10-14 04:57:54,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:57:54" (1/1) ... [2020-10-14 04:57:54,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 04:57:54,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 04:57:54,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:57:54,391 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 04:57:54,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:57:54,438 INFO L208 MainTranslator]: Completed translation [2020-10-14 04:57:54,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:57:54 WrapperNode [2020-10-14 04:57:54,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 04:57:54,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 04:57:54,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 04:57:54,440 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 04:57:54,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:57:54" (1/1) ... [2020-10-14 04:57:54,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:57:54" (1/1) ... [2020-10-14 04:57:54,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:57:54" (1/1) ... [2020-10-14 04:57:54,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:57:54" (1/1) ... [2020-10-14 04:57:54,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:57:54" (1/1) ... [2020-10-14 04:57:54,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:57:54" (1/1) ... [2020-10-14 04:57:54,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:57:54" (1/1) ... [2020-10-14 04:57:54,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 04:57:54,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 04:57:54,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 04:57:54,581 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 04:57:54,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:57:54" (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 [2020-10-14 04:57:54,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 04:57:54,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 04:57:54,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-10-14 04:57:54,655 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-14 04:57:54,655 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-10-14 04:57:54,655 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-10-14 04:57:54,655 INFO L138 BoogieDeclarations]: Found implementation of procedure malloc [2020-10-14 04:57:54,656 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 04:57:54,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 04:57:54,656 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-10-14 04:57:54,657 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 04:57:54,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 04:57:54,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 04:57:54,657 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-10-14 04:57:54,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 04:57:54,658 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-10-14 04:57:54,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 04:57:54,659 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 04:57:54,659 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 04:57:54,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 04:57:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 04:57:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-14 04:57:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 04:57:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 04:57:54,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 04:57:55,041 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 04:57:55,041 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-14 04:57:55,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:57:55 BoogieIcfgContainer [2020-10-14 04:57:55,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 04:57:55,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 04:57:55,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 04:57:55,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 04:57:55,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:57:54" (1/3) ... [2020-10-14 04:57:55,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b95f3ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:57:55, skipping insertion in model container [2020-10-14 04:57:55,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:57:54" (2/3) ... [2020-10-14 04:57:55,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b95f3ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:57:55, skipping insertion in model container [2020-10-14 04:57:55,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:57:55" (3/3) ... [2020-10-14 04:57:55,055 INFO L109 eAbstractionObserver]: Analyzing ICFG ex3_forlist.i [2020-10-14 04:57:55,066 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 04:57:55,075 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 04:57:55,090 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 04:57:55,118 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 04:57:55,118 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 04:57:55,118 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 04:57:55,118 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 04:57:55,119 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 04:57:55,119 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 04:57:55,119 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 04:57:55,119 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 04:57:55,142 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2020-10-14 04:57:55,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-14 04:57:55,150 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:57:55,152 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 04:57:55,152 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:57:55,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:57:55,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1451885248, now seen corresponding path program 1 times [2020-10-14 04:57:55,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:57:55,169 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [988788974] [2020-10-14 04:57:55,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:57:55,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:55,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:55,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:55,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:55,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:56,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:57,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:57,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 04:57:57,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 04:57:57,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2060 [2020-10-14 04:57:57,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:57,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:57,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:57:57,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-10-14 04:57:57,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:57:57,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 04:57:57,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:57:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:57,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:57,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:57,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:57:57,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:57,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 04:57:57,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:57,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:57,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:57:57,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:57:57,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:57:57,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:57:57,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 04:57:57,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:57,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:57,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:57,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:57,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 04:57:57,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:57:57,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 04:57:57,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:57,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:57,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:57:57,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:57:57,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:57:57,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 04:57:57,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 04:57:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:57,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:57,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:57,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:57:57,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:57,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:57:57,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:57,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:57,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:57:57,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:57:57,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:57:57,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:57:57,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 04:57:57,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:57,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:57,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:57,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:57:57,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:57,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:57:57,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:57,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:57,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:57:57,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:57:57,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:57:57,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:57:57,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 04:57:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:57,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:57,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:57,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:57,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 04:57:57,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:57:57,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:57:57,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:57,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:57,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:57:57,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 04:57:57,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:57:57,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:57:57,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 04:57:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:57,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:57,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:57:57,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 04:57:57,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:57:57,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:57:57,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:57:57,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:57:57,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:57:57,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 04:57:57,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:57:57,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 04:57:57,683 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-14 04:57:57,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [988788974] [2020-10-14 04:57:57,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:57:57,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 04:57:57,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738557314] [2020-10-14 04:57:57,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:57:57,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:57:57,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:57:57,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:57:57,723 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 5 states. [2020-10-14 04:57:58,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:57:58,189 INFO L93 Difference]: Finished difference Result 109 states and 160 transitions. [2020-10-14 04:57:58,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:57:58,192 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-10-14 04:57:58,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:57:58,207 INFO L225 Difference]: With dead ends: 109 [2020-10-14 04:57:58,208 INFO L226 Difference]: Without dead ends: 63 [2020-10-14 04:57:58,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:57:58,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-14 04:57:58,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 41. [2020-10-14 04:57:58,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-14 04:57:58,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2020-10-14 04:57:58,275 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 39 [2020-10-14 04:57:58,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:57:58,276 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2020-10-14 04:57:58,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:57:58,276 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2020-10-14 04:57:58,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-14 04:57:58,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:57:58,279 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 04:57:58,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 04:57:58,280 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:57:58,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:57:58,281 INFO L82 PathProgramCache]: Analyzing trace with hash -84634208, now seen corresponding path program 1 times [2020-10-14 04:57:58,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:57:58,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [445936360] [2020-10-14 04:57:58,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:57:58,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:57:58,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:58,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:58,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:58,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:57:58,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:01,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:01,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 04:58:01,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 04:58:01,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3028 [2020-10-14 04:58:01,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:01,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:01,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:58:01,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-14 04:58:01,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:58:01,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:01,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:58:01,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:01,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:01,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:01,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:01,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:01,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 04:58:01,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:01,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:01,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:01,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:01,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:01,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:01,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 04:58:01,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:01,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:01,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:01,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:01,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 04:58:01,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:58:01,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:58:01,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:01,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:01,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:01,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:01,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:01,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:01,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 04:58:01,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:01,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:01,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:01,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:01,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:01,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:58:01,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:01,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:01,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:01,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:01,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:01,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:01,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 04:58:01,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:01,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:01,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:01,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:01,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:01,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:58:01,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:01,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:01,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:01,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:01,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:01,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:01,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 04:58:01,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:01,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:01,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:01,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:01,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 04:58:01,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:58:01,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 04:58:01,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:01,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:01,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:01,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:01,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:01,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 04:58:01,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 04:58:01,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:01,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:01,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:01,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 04:58:01,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:01,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 04:58:01,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:01,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:01,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:58:01,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 04:58:01,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:58:01,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:01,481 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 04:58:01,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [445936360] [2020-10-14 04:58:01,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:58:01,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 04:58:01,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065161840] [2020-10-14 04:58:01,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 04:58:01,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:58:01,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 04:58:01,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:58:01,485 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand 6 states. [2020-10-14 04:58:01,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:58:01,877 INFO L93 Difference]: Finished difference Result 88 states and 121 transitions. [2020-10-14 04:58:01,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 04:58:01,878 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-10-14 04:58:01,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:58:01,880 INFO L225 Difference]: With dead ends: 88 [2020-10-14 04:58:01,880 INFO L226 Difference]: Without dead ends: 68 [2020-10-14 04:58:01,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-14 04:58:01,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-14 04:58:01,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 42. [2020-10-14 04:58:01,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-14 04:58:01,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-10-14 04:58:01,895 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 39 [2020-10-14 04:58:01,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:58:01,895 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-10-14 04:58:01,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 04:58:01,896 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-10-14 04:58:01,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-14 04:58:01,897 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:58:01,897 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 04:58:01,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 04:58:01,898 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:58:01,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:58:01,898 INFO L82 PathProgramCache]: Analyzing trace with hash -2024166110, now seen corresponding path program 1 times [2020-10-14 04:58:01,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:58:01,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [768008527] [2020-10-14 04:58:01,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:58:01,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:01,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:01,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:02,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:02,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:02,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:03,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:03,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:03,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:06,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:06,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-14 04:58:06,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 04:58:06,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 04:58:06,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:06,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:06,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:58:06,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 04:58:06,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:58:06,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:06,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:58:06,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:06,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:06,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:06,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:06,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:06,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 04:58:06,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:06,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:06,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:06,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:06,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:06,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:06,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 04:58:06,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:06,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:06,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:06,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 04:58:06,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:06,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:58:06,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:06,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:06,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:58:06,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 04:58:06,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:58:06,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:06,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 04:58:06,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:06,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:07,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:07,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:07,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:07,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:58:07,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:07,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:07,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:07,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:58:07,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:07,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:07,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 04:58:07,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:07,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:07,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:07,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:07,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:07,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:58:07,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:07,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:07,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:07,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:58:07,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:07,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:07,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 04:58:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:07,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:07,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:07,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 04:58:07,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:07,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 04:58:07,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:07,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:07,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:07,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 04:58:07,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:07,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:07,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 04:58:07,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:07,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:07,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:07,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 04:58:07,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:07,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:58:07,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:07,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 04:58:07,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:07,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:07,040 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-14 04:58:07,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [768008527] [2020-10-14 04:58:07,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:58:07,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 04:58:07,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608549137] [2020-10-14 04:58:07,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 04:58:07,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:58:07,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 04:58:07,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:58:07,042 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 6 states. [2020-10-14 04:58:07,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:58:07,336 INFO L93 Difference]: Finished difference Result 86 states and 104 transitions. [2020-10-14 04:58:07,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 04:58:07,337 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2020-10-14 04:58:07,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:58:07,338 INFO L225 Difference]: With dead ends: 86 [2020-10-14 04:58:07,338 INFO L226 Difference]: Without dead ends: 54 [2020-10-14 04:58:07,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-14 04:58:07,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-14 04:58:07,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 43. [2020-10-14 04:58:07,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-14 04:58:07,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2020-10-14 04:58:07,350 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 41 [2020-10-14 04:58:07,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:58:07,350 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2020-10-14 04:58:07,350 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 04:58:07,351 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2020-10-14 04:58:07,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-14 04:58:07,352 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:58:07,352 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 04:58:07,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 04:58:07,352 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:58:07,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:58:07,353 INFO L82 PathProgramCache]: Analyzing trace with hash -75669472, now seen corresponding path program 1 times [2020-10-14 04:58:07,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:58:07,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [326222882] [2020-10-14 04:58:07,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:58:07,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:07,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:07,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:07,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:08,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:08,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:09,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:09,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:09,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:10,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:10,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:12,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:12,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-14 04:58:12,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 04:58:12,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 04:58:12,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:12,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:12,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 04:58:12,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 04:58:12,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 04:58:12,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:12,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:58:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:12,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:12,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:12,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:12,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:12,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 04:58:12,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:12,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:12,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:12,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:12,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:12,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:12,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 04:58:12,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:12,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:12,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:12,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 04:58:12,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:12,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 04:58:12,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:12,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:12,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 04:58:12,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 04:58:12,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 04:58:12,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:12,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-14 04:58:12,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:12,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:12,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:12,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:12,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:12,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:58:12,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:12,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:12,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:12,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:58:12,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:12,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-14 04:58:12,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 04:58:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:12,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:12,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:12,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:12,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:12,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:58:12,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:12,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:12,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:12,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:58:12,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:12,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:12,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 04:58:12,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:12,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:12,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:12,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 04:58:12,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:12,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 04:58:12,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:12,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:12,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:12,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 04:58:12,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:12,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:12,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 04:58:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:12,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:12,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:12,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 04:58:12,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:12,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 04:58:12,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:12,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:12,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:12,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 04:58:12,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:12,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:12,543 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-14 04:58:12,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [326222882] [2020-10-14 04:58:12,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:58:12,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:58:12,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412160001] [2020-10-14 04:58:12,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:58:12,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:58:12,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:58:12,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:58:12,548 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand 7 states. [2020-10-14 04:58:12,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:58:12,896 INFO L93 Difference]: Finished difference Result 87 states and 105 transitions. [2020-10-14 04:58:12,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 04:58:12,897 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 43 [2020-10-14 04:58:12,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:58:12,898 INFO L225 Difference]: With dead ends: 87 [2020-10-14 04:58:12,898 INFO L226 Difference]: Without dead ends: 55 [2020-10-14 04:58:12,899 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:58:12,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-14 04:58:12,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 45. [2020-10-14 04:58:12,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-14 04:58:12,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 52 transitions. [2020-10-14 04:58:12,908 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 52 transitions. Word has length 43 [2020-10-14 04:58:12,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:58:12,908 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 52 transitions. [2020-10-14 04:58:12,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:58:12,909 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 52 transitions. [2020-10-14 04:58:12,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-14 04:58:12,913 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:58:12,913 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 04:58:12,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 04:58:12,914 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:58:12,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:58:12,914 INFO L82 PathProgramCache]: Analyzing trace with hash -176141410, now seen corresponding path program 2 times [2020-10-14 04:58:12,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:58:12,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [614766223] [2020-10-14 04:58:12,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:58:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:12,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:13,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:13,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:13,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:14,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:14,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:14,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:15,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:15,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:16,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:17,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:17,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:17,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 04:58:17,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 04:58:17,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 04:58:17,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:17,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:17,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 04:58:17,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-14 04:58:17,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 04:58:17,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:18,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:58:18,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:18,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:18,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:18,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:18,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:18,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:58:18,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:18,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:18,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:18,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:18,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:18,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:18,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 04:58:18,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:18,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:18,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:18,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 04:58:18,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:18,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 04:58:18,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:18,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:18,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:18,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:18,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:18,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:18,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 04:58:18,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:18,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:18,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:18,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:18,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:18,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:58:18,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:18,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:18,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:18,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:18,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:18,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:18,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 04:58:18,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:18,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:18,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:18,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:18,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:18,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:58:18,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:18,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:18,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:18,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:18,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:18,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:18,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 04:58:18,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:18,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:18,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:18,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 04:58:18,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:18,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 04:58:18,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:18,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:18,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:18,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:18,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:18,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:18,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 04:58:18,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:18,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:18,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:18,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 04:58:18,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:18,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 04:58:18,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:18,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:18,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 04:58:18,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:18,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 04:58:18,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:18,181 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-14 04:58:18,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [614766223] [2020-10-14 04:58:18,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:58:18,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 04:58:18,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648988542] [2020-10-14 04:58:18,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 04:58:18,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:58:18,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 04:58:18,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 04:58:18,185 INFO L87 Difference]: Start difference. First operand 45 states and 52 transitions. Second operand 9 states. [2020-10-14 04:58:19,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:58:19,006 INFO L93 Difference]: Finished difference Result 92 states and 115 transitions. [2020-10-14 04:58:19,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 04:58:19,007 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45 [2020-10-14 04:58:19,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:58:19,009 INFO L225 Difference]: With dead ends: 92 [2020-10-14 04:58:19,010 INFO L226 Difference]: Without dead ends: 89 [2020-10-14 04:58:19,013 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2020-10-14 04:58:19,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-10-14 04:58:19,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 75. [2020-10-14 04:58:19,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-14 04:58:19,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 97 transitions. [2020-10-14 04:58:19,049 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 97 transitions. Word has length 45 [2020-10-14 04:58:19,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:58:19,050 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 97 transitions. [2020-10-14 04:58:19,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 04:58:19,050 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 97 transitions. [2020-10-14 04:58:19,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-14 04:58:19,053 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:58:19,053 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:58:19,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 04:58:19,054 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:58:19,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:58:19,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1465709063, now seen corresponding path program 1 times [2020-10-14 04:58:19,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:58:19,055 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [159717672] [2020-10-14 04:58:19,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:58:19,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:19,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:19,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:19,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:19,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:20,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:20,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:20,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:20,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:21,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:21,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:22,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:22,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:22,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:23,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:23,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:23,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:24,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:24,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-14 04:58:24,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 04:58:24,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 04:58:24,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:24,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:24,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 04:58:24,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:58:24,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 04:58:24,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:24,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:58:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:24,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:24,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:24,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:24,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:24,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 04:58:24,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:24,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:24,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:58:24,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:24,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:58:24,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:24,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 04:58:24,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:24,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:24,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:24,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 04:58:24,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:24,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 04:58:24,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:24,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:24,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:58:24,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:24,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 04:58:24,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:24,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 04:58:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:24,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:24,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:24,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:24,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:24,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:58:24,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:24,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:24,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:58:24,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:24,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 04:58:24,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:24,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 04:58:24,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:24,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:24,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:24,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:24,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:24,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:58:24,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:24,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:24,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:58:24,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:24,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 04:58:24,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:24,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 04:58:24,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:24,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:24,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:24,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 04:58:24,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:24,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 04:58:24,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:24,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:24,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 04:58:24,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:24,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 04:58:24,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:24,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 04:58:24,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:24,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:24,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:24,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 04:58:24,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:24,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 04:58:24,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:24,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:24,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:58:24,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:58:24,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 04:58:24,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:24,551 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-14 04:58:24,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [159717672] [2020-10-14 04:58:24,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:58:24,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 04:58:24,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558590184] [2020-10-14 04:58:24,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 04:58:24,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:58:24,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 04:58:24,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-14 04:58:24,554 INFO L87 Difference]: Start difference. First operand 75 states and 97 transitions. Second operand 13 states. [2020-10-14 04:58:25,130 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2020-10-14 04:58:25,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:58:25,832 INFO L93 Difference]: Finished difference Result 146 states and 189 transitions. [2020-10-14 04:58:25,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 04:58:25,832 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 48 [2020-10-14 04:58:25,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:58:25,834 INFO L225 Difference]: With dead ends: 146 [2020-10-14 04:58:25,834 INFO L226 Difference]: Without dead ends: 116 [2020-10-14 04:58:25,838 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2020-10-14 04:58:25,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-14 04:58:25,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 79. [2020-10-14 04:58:25,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-14 04:58:25,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 101 transitions. [2020-10-14 04:58:25,870 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 101 transitions. Word has length 48 [2020-10-14 04:58:25,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:58:25,870 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 101 transitions. [2020-10-14 04:58:25,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 04:58:25,871 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 101 transitions. [2020-10-14 04:58:25,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-14 04:58:25,876 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:58:25,876 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-10-14 04:58:25,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 04:58:25,877 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:58:25,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:58:25,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1177779125, now seen corresponding path program 1 times [2020-10-14 04:58:25,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:58:25,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1641473660] [2020-10-14 04:58:25,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:58:25,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:25,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:26,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:26,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:26,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:27,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:27,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:27,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:27,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:28,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:28,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:30,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:30,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-14 04:58:30,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 04:58:30,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 04:58:30,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:30,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:30,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 04:58:30,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:58:30,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 04:58:30,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:31,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:58:31,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:31,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:31,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:31,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:31,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:31,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 04:58:31,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:31,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:31,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:58:31,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:31,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:58:31,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:31,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 04:58:31,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:31,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:31,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:31,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 04:58:31,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:31,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 04:58:31,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:31,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:31,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:58:31,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:31,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 04:58:31,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:31,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 04:58:31,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:31,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:31,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:31,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:31,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:31,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:58:31,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:31,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:31,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:58:31,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:31,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 04:58:31,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:31,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 04:58:31,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:31,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:31,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:31,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:31,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:31,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:58:31,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:31,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:31,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:58:31,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:31,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 04:58:31,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:31,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 04:58:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:31,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:31,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:31,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 04:58:31,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:31,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 04:58:31,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:31,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:31,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:58:31,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:31,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 04:58:31,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:31,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 04:58:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:31,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:31,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:31,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 04:58:31,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:31,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 04:58:31,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:31,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:31,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 04:58:31,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:58:31,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 04:58:31,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:31,190 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-14 04:58:31,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1641473660] [2020-10-14 04:58:31,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:58:31,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 04:58:31,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130655013] [2020-10-14 04:58:31,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 04:58:31,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:58:31,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 04:58:31,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-14 04:58:31,192 INFO L87 Difference]: Start difference. First operand 79 states and 101 transitions. Second operand 13 states. [2020-10-14 04:58:32,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:58:32,229 INFO L93 Difference]: Finished difference Result 112 states and 139 transitions. [2020-10-14 04:58:32,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 04:58:32,230 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 48 [2020-10-14 04:58:32,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:58:32,232 INFO L225 Difference]: With dead ends: 112 [2020-10-14 04:58:32,232 INFO L226 Difference]: Without dead ends: 109 [2020-10-14 04:58:32,233 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=223, Invalid=533, Unknown=0, NotChecked=0, Total=756 [2020-10-14 04:58:32,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-14 04:58:32,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 79. [2020-10-14 04:58:32,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-14 04:58:32,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 100 transitions. [2020-10-14 04:58:32,255 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 100 transitions. Word has length 48 [2020-10-14 04:58:32,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:58:32,256 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 100 transitions. [2020-10-14 04:58:32,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 04:58:32,256 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 100 transitions. [2020-10-14 04:58:32,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-14 04:58:32,257 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:58:32,257 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 04:58:32,257 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 04:58:32,262 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:58:32,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:58:32,263 INFO L82 PathProgramCache]: Analyzing trace with hash -938142676, now seen corresponding path program 1 times [2020-10-14 04:58:32,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:58:32,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [298860738] [2020-10-14 04:58:32,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:58:32,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:32,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:32,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:32,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:32,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:32,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:32,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:32,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:32,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:33,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:33,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:33,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:36,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:36,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:36,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:37,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:37,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-14 04:58:37,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 04:58:37,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 04:58:37,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:37,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:37,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 04:58:37,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-14 04:58:37,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 04:58:37,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:37,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:58:37,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:37,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:37,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:37,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:37,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:37,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:58:37,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:37,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:37,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:37,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:37,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:37,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:37,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 04:58:37,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:37,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:37,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:37,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 04:58:37,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:37,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:58:37,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:37,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:37,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:37,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:37,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:37,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:37,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 04:58:37,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:37,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:37,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:37,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:37,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:37,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:58:37,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:37,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:37,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:37,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:37,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:37,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:37,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 04:58:37,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:37,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:37,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:37,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:37,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:37,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 04:58:37,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:37,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:37,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:37,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:37,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:37,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:37,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 04:58:37,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:37,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:37,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:37,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:37,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 04:58:37,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:58:37,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 04:58:37,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:37,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:37,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:37,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:37,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:37,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:37,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 04:58:37,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:37,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:37,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:37,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 04:58:37,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:37,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:58:37,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:37,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:37,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 04:58:37,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 04:58:37,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 04:58:37,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:37,388 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-14 04:58:37,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [298860738] [2020-10-14 04:58:37,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:58:37,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:58:37,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946337217] [2020-10-14 04:58:37,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:58:37,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:58:37,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:58:37,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:58:37,390 INFO L87 Difference]: Start difference. First operand 79 states and 100 transitions. Second operand 7 states. [2020-10-14 04:58:37,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:58:37,756 INFO L93 Difference]: Finished difference Result 130 states and 168 transitions. [2020-10-14 04:58:37,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 04:58:37,757 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 49 [2020-10-14 04:58:37,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:58:37,759 INFO L225 Difference]: With dead ends: 130 [2020-10-14 04:58:37,759 INFO L226 Difference]: Without dead ends: 88 [2020-10-14 04:58:37,760 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:58:37,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-10-14 04:58:37,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 83. [2020-10-14 04:58:37,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-10-14 04:58:37,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 104 transitions. [2020-10-14 04:58:37,775 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 104 transitions. Word has length 49 [2020-10-14 04:58:37,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:58:37,776 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 104 transitions. [2020-10-14 04:58:37,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:58:37,776 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 104 transitions. [2020-10-14 04:58:37,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-14 04:58:37,777 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:58:37,777 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 04:58:37,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 04:58:37,778 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:58:37,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:58:37,778 INFO L82 PathProgramCache]: Analyzing trace with hash 2074490512, now seen corresponding path program 1 times [2020-10-14 04:58:37,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:58:37,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1859109744] [2020-10-14 04:58:37,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:58:37,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:37,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:37,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:37,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:38,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:38,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:39,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:39,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:39,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:39,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:40,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:40,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:41,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:41,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:42,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:42,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:42,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:42,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:42,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:42,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 04:58:42,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-14 04:58:42,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5058 [2020-10-14 04:58:42,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:42,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:42,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 04:58:42,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-14 04:58:42,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 04:58:42,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:42,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:58:42,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:42,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:42,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:42,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:42,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:42,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:58:42,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:42,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:42,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:42,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:42,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:42,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:42,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 04:58:42,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:42,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:42,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:42,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 04:58:42,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:42,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 04:58:42,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:42,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:42,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:42,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:42,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:42,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:42,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 04:58:42,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:42,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:42,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:42,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:42,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:42,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:58:42,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:42,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:42,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:42,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:42,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:42,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:42,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 04:58:42,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:42,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:42,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:42,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:42,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:42,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:58:42,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:42,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:42,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:42,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:42,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:42,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:42,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 04:58:42,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:42,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:42,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:42,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 04:58:42,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:42,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:58:42,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:42,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:42,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:58:42,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:42,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:58:42,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:42,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 04:58:42,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:42,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:43,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:43,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 04:58:43,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:43,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 04:58:43,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:43,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:43,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:58:43,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:43,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 04:58:43,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:43,076 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-14 04:58:43,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1859109744] [2020-10-14 04:58:43,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:58:43,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 04:58:43,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739335952] [2020-10-14 04:58:43,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 04:58:43,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:58:43,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 04:58:43,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:58:43,079 INFO L87 Difference]: Start difference. First operand 83 states and 104 transitions. Second operand 11 states. [2020-10-14 04:58:44,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:58:44,389 INFO L93 Difference]: Finished difference Result 167 states and 219 transitions. [2020-10-14 04:58:44,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 04:58:44,391 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 51 [2020-10-14 04:58:44,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:58:44,393 INFO L225 Difference]: With dead ends: 167 [2020-10-14 04:58:44,393 INFO L226 Difference]: Without dead ends: 164 [2020-10-14 04:58:44,394 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=173, Invalid=639, Unknown=0, NotChecked=0, Total=812 [2020-10-14 04:58:44,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-10-14 04:58:44,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 135. [2020-10-14 04:58:44,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-10-14 04:58:44,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 185 transitions. [2020-10-14 04:58:44,417 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 185 transitions. Word has length 51 [2020-10-14 04:58:44,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:58:44,418 INFO L479 AbstractCegarLoop]: Abstraction has 135 states and 185 transitions. [2020-10-14 04:58:44,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 04:58:44,418 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 185 transitions. [2020-10-14 04:58:44,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-14 04:58:44,419 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:58:44,419 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 04:58:44,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 04:58:44,420 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:58:44,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:58:44,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1587560974, now seen corresponding path program 2 times [2020-10-14 04:58:44,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:58:44,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1979813257] [2020-10-14 04:58:44,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:58:44,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:44,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:44,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:44,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:44,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:44,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:45,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:45,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:49,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:49,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:49,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:49,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 04:58:49,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 04:58:49,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 04:58:49,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:49,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:49,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 04:58:49,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:58:49,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-14 04:58:49,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:49,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:58:49,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:49,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:49,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:49,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:49,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:49,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:58:49,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:49,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:49,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:58:49,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:49,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:58:49,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:49,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 04:58:49,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:49,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:49,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:49,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 04:58:49,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:49,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 04:58:49,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:49,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:49,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:58:49,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:49,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 04:58:49,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:49,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 04:58:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:49,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:49,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:49,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:49,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:49,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:58:49,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:49,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:49,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:58:49,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:49,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 04:58:49,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:49,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 04:58:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:49,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:49,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:49,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:49,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:49,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:58:49,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:49,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:49,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:58:49,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:49,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 04:58:49,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:49,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 04:58:49,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:49,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:49,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:49,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:49,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 04:58:49,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:58:49,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 04:58:49,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:49,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:49,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 04:58:49,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:49,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 04:58:49,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:49,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 04:58:49,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:49,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:49,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:49,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 04:58:49,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:49,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 04:58:49,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:49,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:49,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:58:49,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:58:49,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 04:58:49,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:49,776 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-14 04:58:49,776 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1979813257] [2020-10-14 04:58:49,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:58:49,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 04:58:49,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116634508] [2020-10-14 04:58:49,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 04:58:49,777 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:58:49,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 04:58:49,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2020-10-14 04:58:49,778 INFO L87 Difference]: Start difference. First operand 135 states and 185 transitions. Second operand 15 states. [2020-10-14 04:58:51,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:58:51,016 INFO L93 Difference]: Finished difference Result 206 states and 273 transitions. [2020-10-14 04:58:51,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 04:58:51,019 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 51 [2020-10-14 04:58:51,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:58:51,021 INFO L225 Difference]: With dead ends: 206 [2020-10-14 04:58:51,022 INFO L226 Difference]: Without dead ends: 176 [2020-10-14 04:58:51,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=198, Invalid=672, Unknown=0, NotChecked=0, Total=870 [2020-10-14 04:58:51,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-10-14 04:58:51,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 163. [2020-10-14 04:58:51,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-10-14 04:58:51,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 221 transitions. [2020-10-14 04:58:51,050 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 221 transitions. Word has length 51 [2020-10-14 04:58:51,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:58:51,050 INFO L479 AbstractCegarLoop]: Abstraction has 163 states and 221 transitions. [2020-10-14 04:58:51,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 04:58:51,050 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 221 transitions. [2020-10-14 04:58:51,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-14 04:58:51,051 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:58:51,052 INFO L422 BasicCegarLoop]: trace histogram [4, 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] [2020-10-14 04:58:51,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 04:58:51,052 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:58:51,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:58:51,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1299631036, now seen corresponding path program 2 times [2020-10-14 04:58:51,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:58:51,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1667962266] [2020-10-14 04:58:51,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:58:51,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:51,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:51,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:51,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:51,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:51,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:52,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:52,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:52,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:56,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:56,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 04:58:56,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 04:58:56,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 04:58:56,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:56,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:56,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 04:58:56,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:58:56,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 04:58:56,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:56,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:58:56,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:56,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:56,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:56,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:56,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:56,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:58:56,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:56,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:56,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:58:56,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:56,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:58:56,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:56,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 04:58:56,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:56,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:56,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:56,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 04:58:56,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:56,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 04:58:56,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:56,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:56,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:58:56,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:56,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 04:58:56,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:56,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 04:58:56,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:56,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:56,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:56,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:56,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:56,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:58:56,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:56,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:56,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:58:56,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:56,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 04:58:56,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:56,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 04:58:56,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:56,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:56,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:56,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:58:56,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:56,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:58:56,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:56,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:56,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:58:56,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:56,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 04:58:56,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:56,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 04:58:56,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:56,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:56,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:56,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 04:58:56,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:56,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 04:58:56,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:56,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:56,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:58:56,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:58:56,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 04:58:56,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:58:56,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 04:58:56,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:56,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:56,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:58:56,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 04:58:56,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:58:56,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 04:58:56,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:58:56,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:58:56,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 04:58:56,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:58:56,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 04:58:56,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:58:56,463 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-14 04:58:56,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1667962266] [2020-10-14 04:58:56,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:58:56,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 04:58:56,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465361222] [2020-10-14 04:58:56,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 04:58:56,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:58:56,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 04:58:56,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2020-10-14 04:58:56,467 INFO L87 Difference]: Start difference. First operand 163 states and 221 transitions. Second operand 15 states. [2020-10-14 04:58:57,782 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2020-10-14 04:58:58,024 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2020-10-14 04:58:58,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:58:58,359 INFO L93 Difference]: Finished difference Result 271 states and 359 transitions. [2020-10-14 04:58:58,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 04:58:58,360 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 51 [2020-10-14 04:58:58,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:58:58,362 INFO L225 Difference]: With dead ends: 271 [2020-10-14 04:58:58,362 INFO L226 Difference]: Without dead ends: 212 [2020-10-14 04:58:58,363 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=276, Invalid=984, Unknown=0, NotChecked=0, Total=1260 [2020-10-14 04:58:58,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-10-14 04:58:58,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 193. [2020-10-14 04:58:58,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-10-14 04:58:58,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 260 transitions. [2020-10-14 04:58:58,396 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 260 transitions. Word has length 51 [2020-10-14 04:58:58,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:58:58,396 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 260 transitions. [2020-10-14 04:58:58,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 04:58:58,397 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 260 transitions. [2020-10-14 04:58:58,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-14 04:58:58,398 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:58:58,398 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:58:58,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 04:58:58,398 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:58:58,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:58:58,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1038104393, now seen corresponding path program 1 times [2020-10-14 04:58:58,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:58:58,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [799500913] [2020-10-14 04:58:58,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:58:58,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:58:58,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:58,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:58,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:58,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:58,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:58,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:59,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:59,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:59,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:59,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:59,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:58:59,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:00,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:00,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:00,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:00,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:00,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:00,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:03,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:03,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 04:59:03,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-14 04:59:03,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 04:59:03,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:03,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:03,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 04:59:03,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:59:03,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-14 04:59:03,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:03,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:59:03,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:03,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:03,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:03,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:59:03,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:03,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:59:03,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:03,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:03,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:59:03,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:03,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:59:03,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:03,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 04:59:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:03,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:03,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:03,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 04:59:03,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:03,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 04:59:03,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:03,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:03,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:59:03,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:03,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 04:59:03,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:03,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 04:59:03,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:03,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:03,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:03,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:59:03,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:03,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:59:03,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:03,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:03,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:59:03,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:03,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 04:59:03,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:03,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 04:59:03,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:03,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:03,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:03,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:59:03,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:03,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:59:03,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:03,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:03,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:59:03,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:03,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 04:59:03,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:03,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 04:59:03,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:03,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:03,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:03,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 04:59:03,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:03,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 04:59:03,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:03,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:03,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 04:59:03,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:03,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 04:59:03,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:03,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 04:59:03,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:03,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:03,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:03,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:59:03,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:03,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 04:59:03,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:03,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:03,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:59:03,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:59:03,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:59:03,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:03,674 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-14 04:59:03,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [799500913] [2020-10-14 04:59:03,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:59:03,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 04:59:03,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394488422] [2020-10-14 04:59:03,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 04:59:03,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:59:03,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 04:59:03,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-14 04:59:03,676 INFO L87 Difference]: Start difference. First operand 193 states and 260 transitions. Second operand 13 states. [2020-10-14 04:59:04,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:59:04,773 INFO L93 Difference]: Finished difference Result 246 states and 326 transitions. [2020-10-14 04:59:04,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 04:59:04,774 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 53 [2020-10-14 04:59:04,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:59:04,776 INFO L225 Difference]: With dead ends: 246 [2020-10-14 04:59:04,776 INFO L226 Difference]: Without dead ends: 217 [2020-10-14 04:59:04,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=138, Invalid=462, Unknown=0, NotChecked=0, Total=600 [2020-10-14 04:59:04,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-14 04:59:04,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 204. [2020-10-14 04:59:04,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-10-14 04:59:04,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 272 transitions. [2020-10-14 04:59:04,808 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 272 transitions. Word has length 53 [2020-10-14 04:59:04,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:59:04,808 INFO L479 AbstractCegarLoop]: Abstraction has 204 states and 272 transitions. [2020-10-14 04:59:04,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 04:59:04,809 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 272 transitions. [2020-10-14 04:59:04,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-14 04:59:04,810 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:59:04,810 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 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] [2020-10-14 04:59:04,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 04:59:04,810 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:59:04,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:59:04,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1992968163, now seen corresponding path program 1 times [2020-10-14 04:59:04,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:59:04,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [786427195] [2020-10-14 04:59:04,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:59:04,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:04,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:04,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:04,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:05,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:05,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:05,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:05,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:05,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:06,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:06,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:06,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:07,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:07,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:07,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:07,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:07,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:07,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:09,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:09,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 04:59:09,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-14 04:59:09,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 04:59:09,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:09,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:09,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 04:59:09,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:59:09,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-14 04:59:09,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:09,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:59:09,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:09,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:09,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:09,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:59:09,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:09,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:59:09,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:09,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:09,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:59:09,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:09,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:59:09,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:09,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 04:59:09,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:09,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:09,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:10,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:10,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 04:59:10,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:59:10,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 04:59:10,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:10,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:10,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 04:59:10,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:10,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 04:59:10,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:10,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 04:59:10,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:10,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:10,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:10,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:59:10,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:10,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:59:10,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:10,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:10,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:59:10,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:10,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 04:59:10,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:59:10,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 04:59:10,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:10,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:10,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:10,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:59:10,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:10,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 04:59:10,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:10,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:10,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:59:10,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:10,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 04:59:10,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:10,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 04:59:10,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:10,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:10,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:10,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:10,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 04:59:10,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:59:10,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 04:59:10,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:10,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:10,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:59:10,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:59:10,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 04:59:10,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:10,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 04:59:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:10,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:10,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:10,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:10,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:59:10,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:59:10,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 04:59:10,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:10,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:10,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:59:10,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:59:10,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:59:10,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:10,324 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-14 04:59:10,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [786427195] [2020-10-14 04:59:10,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:59:10,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 04:59:10,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640806687] [2020-10-14 04:59:10,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 04:59:10,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:59:10,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 04:59:10,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-10-14 04:59:10,332 INFO L87 Difference]: Start difference. First operand 204 states and 272 transitions. Second operand 13 states. [2020-10-14 04:59:10,905 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2020-10-14 04:59:11,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:59:11,669 INFO L93 Difference]: Finished difference Result 265 states and 346 transitions. [2020-10-14 04:59:11,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 04:59:11,670 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 53 [2020-10-14 04:59:11,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:59:11,671 INFO L225 Difference]: With dead ends: 265 [2020-10-14 04:59:11,671 INFO L226 Difference]: Without dead ends: 132 [2020-10-14 04:59:11,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=195, Invalid=561, Unknown=0, NotChecked=0, Total=756 [2020-10-14 04:59:11,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-14 04:59:11,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 120. [2020-10-14 04:59:11,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-14 04:59:11,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 149 transitions. [2020-10-14 04:59:11,687 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 149 transitions. Word has length 53 [2020-10-14 04:59:11,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:59:11,688 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 149 transitions. [2020-10-14 04:59:11,688 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 04:59:11,688 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 149 transitions. [2020-10-14 04:59:11,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-14 04:59:11,689 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:59:11,689 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:59:11,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 04:59:11,689 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:59:11,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:59:11,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1306839509, now seen corresponding path program 3 times [2020-10-14 04:59:11,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:59:11,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1569142067] [2020-10-14 04:59:11,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:59:11,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:11,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:11,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:11,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:12,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:12,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:14,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:14,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:14,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:16,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:16,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 04:59:16,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 04:59:16,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 04:59:16,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:16,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:16,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:59:16,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-14 04:59:16,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 04:59:16,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:16,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:59:16,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:16,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:16,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:16,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:59:16,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:16,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:59:16,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:16,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:16,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:59:16,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:16,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:59:16,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:16,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 04:59:16,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:16,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:16,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:16,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 04:59:16,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:16,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:59:16,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:16,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:16,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:59:16,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:16,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:59:16,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:16,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 04:59:16,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:16,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:16,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:16,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:59:16,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:16,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:59:16,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:16,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:16,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:59:16,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:16,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:59:16,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:16,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 04:59:16,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:16,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:16,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:16,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:59:16,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:16,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 04:59:16,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:16,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:16,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:59:16,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:16,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:59:16,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:59:16,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 04:59:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:16,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:16,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:16,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 04:59:16,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:16,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:59:16,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:16,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:16,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:59:16,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:16,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:59:16,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:59:16,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 04:59:16,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:16,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:16,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:16,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 04:59:16,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:16,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:59:16,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:16,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:16,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:59:16,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:16,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:59:16,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:16,797 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-14 04:59:16,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1569142067] [2020-10-14 04:59:16,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:59:16,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 04:59:16,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236033821] [2020-10-14 04:59:16,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 04:59:16,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:59:16,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 04:59:16,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:59:16,799 INFO L87 Difference]: Start difference. First operand 120 states and 149 transitions. Second operand 8 states. [2020-10-14 04:59:17,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:59:17,206 INFO L93 Difference]: Finished difference Result 210 states and 270 transitions. [2020-10-14 04:59:17,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:59:17,209 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2020-10-14 04:59:17,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:59:17,211 INFO L225 Difference]: With dead ends: 210 [2020-10-14 04:59:17,212 INFO L226 Difference]: Without dead ends: 139 [2020-10-14 04:59:17,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2020-10-14 04:59:17,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-10-14 04:59:17,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 132. [2020-10-14 04:59:17,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-14 04:59:17,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 158 transitions. [2020-10-14 04:59:17,233 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 158 transitions. Word has length 54 [2020-10-14 04:59:17,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:59:17,233 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 158 transitions. [2020-10-14 04:59:17,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 04:59:17,233 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 158 transitions. [2020-10-14 04:59:17,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-14 04:59:17,236 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:59:17,236 INFO L422 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:59:17,236 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 04:59:17,236 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:59:17,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:59:17,237 INFO L82 PathProgramCache]: Analyzing trace with hash 635746663, now seen corresponding path program 4 times [2020-10-14 04:59:17,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:59:17,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2103006258] [2020-10-14 04:59:17,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:59:17,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:17,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:17,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:17,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:17,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:17,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:17,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:17,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:17,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:18,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:20,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:20,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:22,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:22,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 04:59:22,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 04:59:22,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 04:59:22,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:22,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:22,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:59:22,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-14 04:59:22,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 04:59:22,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:22,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:59:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:22,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:22,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:22,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:59:22,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:22,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:59:22,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:22,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:22,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:59:22,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:22,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:59:22,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:59:22,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 04:59:22,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:22,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:22,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:22,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 04:59:22,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:22,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:59:22,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:22,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:22,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:59:22,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:22,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:59:22,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:59:22,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 04:59:22,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:22,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:22,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:22,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:59:22,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:22,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:59:22,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:22,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:22,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:59:22,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:22,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:59:22,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:22,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 04:59:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:22,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:22,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:22,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:59:22,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:22,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:59:22,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:22,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:22,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:59:22,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:22,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:59:22,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 04:59:22,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 04:59:22,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:22,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:22,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:22,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 04:59:22,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:22,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:59:22,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:22,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:22,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:59:22,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:22,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:59:22,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:59:22,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 04:59:22,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:22,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:22,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:22,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 04:59:22,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:22,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 04:59:22,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:22,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:22,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:59:22,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 04:59:22,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 04:59:22,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:59:22,415 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-14 04:59:22,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2103006258] [2020-10-14 04:59:22,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:59:22,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 04:59:22,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516516824] [2020-10-14 04:59:22,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 04:59:22,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:59:22,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 04:59:22,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:59:22,419 INFO L87 Difference]: Start difference. First operand 132 states and 158 transitions. Second operand 8 states. [2020-10-14 04:59:22,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:59:22,904 INFO L93 Difference]: Finished difference Result 183 states and 219 transitions. [2020-10-14 04:59:22,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:59:22,905 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2020-10-14 04:59:22,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:59:22,906 INFO L225 Difference]: With dead ends: 183 [2020-10-14 04:59:22,907 INFO L226 Difference]: Without dead ends: 102 [2020-10-14 04:59:22,911 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2020-10-14 04:59:22,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-10-14 04:59:22,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 98. [2020-10-14 04:59:22,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-14 04:59:22,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 113 transitions. [2020-10-14 04:59:22,939 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 113 transitions. Word has length 54 [2020-10-14 04:59:22,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:59:22,940 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 113 transitions. [2020-10-14 04:59:22,940 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 04:59:22,940 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 113 transitions. [2020-10-14 04:59:22,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-14 04:59:22,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:59:22,947 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:59:22,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 04:59:22,947 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:59:22,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:59:22,948 INFO L82 PathProgramCache]: Analyzing trace with hash 787730724, now seen corresponding path program 1 times [2020-10-14 04:59:22,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:59:22,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [104596452] [2020-10-14 04:59:22,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:59:22,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:22,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:23,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:23,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:23,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:23,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:23,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:23,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:23,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:23,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:24,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:24,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:25,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:25,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:25,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:25,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:25,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:25,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:26,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:26,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:26,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:27,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:27,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:27,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:27,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:27,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:27,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:27,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:27,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:27,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 04:59:27,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 27 [2020-10-14 04:59:27,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 04:59:27,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:27,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:27,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 04:59:27,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:59:27,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 04:59:27,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:28,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:59:28,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:28,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:28,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:28,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:59:28,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:28,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:59:28,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:28,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:28,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:59:28,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:28,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:59:28,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:28,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 04:59:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:28,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:28,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:28,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:28,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 04:59:28,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:59:28,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 04:59:28,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:28,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:28,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 04:59:28,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:28,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 04:59:28,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:28,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 04:59:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:28,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:28,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:28,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:59:28,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:28,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:59:28,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:28,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:28,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:59:28,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:28,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 04:59:28,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:28,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 04:59:28,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:28,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:28,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:28,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:59:28,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:28,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:59:28,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:28,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:28,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:59:28,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:28,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 04:59:28,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:28,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 04:59:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:28,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:28,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:28,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 04:59:28,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:28,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 04:59:28,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:28,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:28,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:59:28,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:59:28,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 04:59:28,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:28,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 04:59:28,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:28,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:28,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:28,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:59:28,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:28,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 04:59:28,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:28,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:28,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:59:28,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:59:28,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:59:28,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:28,499 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-14 04:59:28,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [104596452] [2020-10-14 04:59:28,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:59:28,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-14 04:59:28,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347142263] [2020-10-14 04:59:28,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 04:59:28,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:59:28,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 04:59:28,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2020-10-14 04:59:28,501 INFO L87 Difference]: Start difference. First operand 98 states and 113 transitions. Second operand 19 states. [2020-10-14 04:59:30,055 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-14 04:59:30,205 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-10-14 04:59:30,416 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2020-10-14 04:59:30,639 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-10-14 04:59:30,877 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-14 04:59:30,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:59:30,956 INFO L93 Difference]: Finished difference Result 151 states and 174 transitions. [2020-10-14 04:59:30,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-14 04:59:30,960 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 55 [2020-10-14 04:59:30,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:59:30,961 INFO L225 Difference]: With dead ends: 151 [2020-10-14 04:59:30,961 INFO L226 Difference]: Without dead ends: 118 [2020-10-14 04:59:30,962 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=350, Invalid=1132, Unknown=0, NotChecked=0, Total=1482 [2020-10-14 04:59:30,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-10-14 04:59:30,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 106. [2020-10-14 04:59:30,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-14 04:59:30,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 121 transitions. [2020-10-14 04:59:30,976 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 121 transitions. Word has length 55 [2020-10-14 04:59:30,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:59:30,976 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 121 transitions. [2020-10-14 04:59:30,976 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 04:59:30,977 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 121 transitions. [2020-10-14 04:59:30,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-14 04:59:30,978 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:59:30,978 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-10-14 04:59:30,978 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 04:59:30,978 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:59:30,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:59:30,979 INFO L82 PathProgramCache]: Analyzing trace with hash -836514214, now seen corresponding path program 1 times [2020-10-14 04:59:30,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:59:30,979 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [571830170] [2020-10-14 04:59:30,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:59:30,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:31,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:31,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:31,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:31,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:31,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:31,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:35,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:35,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 04:59:35,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 04:59:35,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 04:59:35,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:35,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:35,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 04:59:35,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-14 04:59:35,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 04:59:35,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:36,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:59:36,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:36,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:36,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:36,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:59:36,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:36,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:59:36,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:36,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:36,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:59:36,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:36,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:59:36,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:36,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 04:59:36,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:36,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:36,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:36,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 04:59:36,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:36,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:59:36,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:36,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:36,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:59:36,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:36,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:59:36,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:36,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 04:59:36,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:36,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:36,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:36,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:59:36,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:36,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:59:36,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:36,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:36,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:59:36,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:36,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:59:36,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:36,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 04:59:36,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:36,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:36,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:36,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:59:36,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:36,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:59:36,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:36,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:36,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:59:36,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:36,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:59:36,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:36,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 04:59:36,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:36,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:36,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:36,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 04:59:36,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:36,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:59:36,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:36,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:36,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:59:36,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:36,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:59:36,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:36,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 04:59:36,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:36,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:36,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:36,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 04:59:36,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:36,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:59:36,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:36,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:36,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:59:36,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:36,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:59:36,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:36,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 04:59:36,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:36,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:36,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:36,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 04:59:36,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:36,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 04:59:36,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:36,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:36,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 04:59:36,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 04:59:36,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 04:59:36,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:36,106 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-14 04:59:36,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [571830170] [2020-10-14 04:59:36,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:59:36,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:59:36,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807140185] [2020-10-14 04:59:36,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:59:36,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:59:36,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:59:36,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:59:36,108 INFO L87 Difference]: Start difference. First operand 106 states and 121 transitions. Second operand 7 states. [2020-10-14 04:59:36,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:59:36,438 INFO L93 Difference]: Finished difference Result 148 states and 170 transitions. [2020-10-14 04:59:36,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 04:59:36,439 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2020-10-14 04:59:36,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:59:36,440 INFO L225 Difference]: With dead ends: 148 [2020-10-14 04:59:36,440 INFO L226 Difference]: Without dead ends: 108 [2020-10-14 04:59:36,441 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:59:36,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-14 04:59:36,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 99. [2020-10-14 04:59:36,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-10-14 04:59:36,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 109 transitions. [2020-10-14 04:59:36,455 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 109 transitions. Word has length 58 [2020-10-14 04:59:36,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:59:36,455 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 109 transitions. [2020-10-14 04:59:36,455 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:59:36,455 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 109 transitions. [2020-10-14 04:59:36,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-14 04:59:36,456 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:59:36,456 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-10-14 04:59:36,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 04:59:36,457 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:59:36,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:59:36,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1124359541, now seen corresponding path program 1 times [2020-10-14 04:59:36,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:59:36,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1302600288] [2020-10-14 04:59:36,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:59:36,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:36,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:36,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:36,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:36,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:37,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:37,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:41,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:41,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 04:59:41,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 04:59:41,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 04:59:41,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:41,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:41,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-14 04:59:41,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:59:41,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 04:59:41,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:41,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:59:41,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:41,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:41,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:41,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:59:41,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:41,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 04:59:41,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:41,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:41,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:59:41,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:41,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:59:41,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:59:41,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 04:59:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:41,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:41,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:41,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 04:59:41,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:41,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 04:59:41,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:41,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:41,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:59:41,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:41,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 04:59:41,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:59:41,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 04:59:41,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:41,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:41,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:41,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:59:41,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:41,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:59:41,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:41,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:41,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:59:41,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:41,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 04:59:41,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:59:41,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 04:59:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:41,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:41,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:41,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:59:41,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:41,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 04:59:41,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:41,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:41,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:59:41,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:59:41,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 04:59:41,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 04:59:41,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 04:59:41,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:41,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:41,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:41,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 04:59:41,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:41,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 04:59:41,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:41,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:41,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 04:59:41,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:41,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 04:59:41,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:59:41,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 04:59:41,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:41,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:41,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:42,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:42,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 04:59:42,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:59:42,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 04:59:42,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:42,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:42,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 04:59:42,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:59:42,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 04:59:42,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:59:42,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 04:59:42,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:42,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:42,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:42,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 04:59:42,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:42,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 04:59:42,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:42,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:42,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 04:59:42,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:59:42,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 04:59:42,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 04:59:42,198 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-14 04:59:42,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1302600288] [2020-10-14 04:59:42,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:59:42,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-14 04:59:42,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985862428] [2020-10-14 04:59:42,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-14 04:59:42,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:59:42,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-14 04:59:42,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2020-10-14 04:59:42,200 INFO L87 Difference]: Start difference. First operand 99 states and 109 transitions. Second operand 24 states. [2020-10-14 04:59:43,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:59:43,762 INFO L93 Difference]: Finished difference Result 119 states and 127 transitions. [2020-10-14 04:59:43,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 04:59:43,762 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 61 [2020-10-14 04:59:43,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:59:43,764 INFO L225 Difference]: With dead ends: 119 [2020-10-14 04:59:43,764 INFO L226 Difference]: Without dead ends: 94 [2020-10-14 04:59:43,765 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=253, Invalid=1387, Unknown=0, NotChecked=0, Total=1640 [2020-10-14 04:59:43,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-10-14 04:59:43,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 84. [2020-10-14 04:59:43,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-14 04:59:43,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 88 transitions. [2020-10-14 04:59:43,779 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 88 transitions. Word has length 61 [2020-10-14 04:59:43,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:59:43,779 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 88 transitions. [2020-10-14 04:59:43,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-14 04:59:43,780 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 88 transitions. [2020-10-14 04:59:43,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 04:59:43,781 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:59:43,781 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:59:43,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 04:59:43,781 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:59:43,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:59:43,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1099274234, now seen corresponding path program 2 times [2020-10-14 04:59:43,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:59:43,782 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [141353781] [2020-10-14 04:59:43,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:59:43,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:43,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:43,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:44,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:44,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:44,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:45,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:46,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:46,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:46,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:46,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:46,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:46,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:47,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:48,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:48,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:48,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-14 04:59:48,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 04:59:48,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 04:59:48,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:48,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:48,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 04:59:48,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-14 04:59:48,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-14 04:59:48,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:48,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:59:48,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:48,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:48,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:48,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:59:48,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:48,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:59:48,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:48,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:48,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:59:48,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:48,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:59:48,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:48,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 04:59:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:48,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:48,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:48,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 04:59:48,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:48,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:59:48,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:48,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:48,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:59:48,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:48,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:59:48,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:48,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 04:59:48,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:48,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:48,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:48,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:59:48,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:48,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:59:48,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:48,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:48,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:59:48,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:48,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:59:48,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:48,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 04:59:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:48,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:48,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:48,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:59:48,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:48,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:59:48,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:48,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:48,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:59:48,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:48,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:59:48,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:48,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 04:59:48,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:48,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:48,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:48,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 04:59:48,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:48,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:59:48,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:48,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:48,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:59:48,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:48,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:59:48,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:48,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 04:59:48,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:48,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:48,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:48,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 04:59:48,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:48,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 04:59:48,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:48,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:48,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:59:48,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:48,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 04:59:48,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:48,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 04:59:48,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:48,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:49,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:49,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:49,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 04:59:49,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:59:49,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 04:59:49,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:49,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:49,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:59:49,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:59:49,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 04:59:49,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:49,077 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-14 04:59:49,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [141353781] [2020-10-14 04:59:49,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:59:49,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 04:59:49,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752731497] [2020-10-14 04:59:49,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 04:59:49,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:59:49,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 04:59:49,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-10-14 04:59:49,079 INFO L87 Difference]: Start difference. First operand 84 states and 88 transitions. Second operand 13 states. [2020-10-14 04:59:50,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:59:50,170 INFO L93 Difference]: Finished difference Result 101 states and 104 transitions. [2020-10-14 04:59:50,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 04:59:50,171 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 64 [2020-10-14 04:59:50,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:59:50,172 INFO L225 Difference]: With dead ends: 101 [2020-10-14 04:59:50,172 INFO L226 Difference]: Without dead ends: 86 [2020-10-14 04:59:50,173 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=196, Invalid=674, Unknown=0, NotChecked=0, Total=870 [2020-10-14 04:59:50,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-10-14 04:59:50,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 81. [2020-10-14 04:59:50,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-10-14 04:59:50,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 84 transitions. [2020-10-14 04:59:50,186 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 84 transitions. Word has length 64 [2020-10-14 04:59:50,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:59:50,187 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 84 transitions. [2020-10-14 04:59:50,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 04:59:50,187 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 84 transitions. [2020-10-14 04:59:50,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 04:59:50,188 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:59:50,188 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:59:50,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 04:59:50,188 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:59:50,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:59:50,188 INFO L82 PathProgramCache]: Analyzing trace with hash -464607536, now seen corresponding path program 3 times [2020-10-14 04:59:50,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:59:50,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1561988145] [2020-10-14 04:59:50,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:59:50,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:50,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:50,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:50,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:50,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:50,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:50,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:50,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:51,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:55,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:55,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-14 04:59:55,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 04:59:55,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 04:59:55,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:55,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:55,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 04:59:55,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:59:55,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-14 04:59:55,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:55,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:59:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:55,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:55,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:55,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:59:55,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:59:55,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:59:55,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:55,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:55,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:59:55,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:55,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:59:55,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:55,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 04:59:55,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:59:55,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:55,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:59:55,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:59:55,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 04:59:55,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:59:55,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 04:59:55,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:59:55,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:59:55,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 04:59:55,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:59:55,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 04:59:55,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:59:55,514 ERROR L253 erpolLogProxyWrapper]: Symbol error in Interpolant 4: A-local: [(init_~i~0_2 Int)], B-local: []. [2020-10-14 04:59:55,514 ERROR L253 erpolLogProxyWrapper]: Symbol error in Interpolant 5: A-local: [(init_~i~0_2 Int)], B-local: []. [2020-10-14 04:59:55,515 ERROR L253 erpolLogProxyWrapper]: Symbol error in Interpolant 6: A-local: [(init_~i~0_2 Int)], B-local: []. [2020-10-14 04:59:55,515 ERROR L253 erpolLogProxyWrapper]: Interpolant 7 not inductive [2020-10-14 04:59:55,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 04:59:55,516 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:849) at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:155) at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:256) at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:150) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:378) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-10-14 04:59:55,522 INFO L168 Benchmark]: Toolchain (without parser) took 121426.22 ms. Allocated memory was 148.4 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 103.1 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 53.1 MB. Max. memory is 7.1 GB. [2020-10-14 04:59:55,522 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 148.4 MB. Free memory was 121.6 MB in the beginning and 121.2 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-14 04:59:55,523 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.16 ms. Allocated memory is still 148.4 MB. Free memory was 102.7 MB in the beginning and 92.3 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-10-14 04:59:55,524 INFO L168 Benchmark]: Boogie Preprocessor took 141.05 ms. Allocated memory was 148.4 MB in the beginning and 204.5 MB in the end (delta: 56.1 MB). Free memory was 92.3 MB in the beginning and 181.9 MB in the end (delta: -89.7 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-10-14 04:59:55,524 INFO L168 Benchmark]: RCFGBuilder took 465.30 ms. Allocated memory is still 204.5 MB. Free memory was 181.9 MB in the beginning and 160.4 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-10-14 04:59:55,525 INFO L168 Benchmark]: TraceAbstraction took 120472.84 ms. Allocated memory was 204.5 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 159.5 MB in the beginning and 1.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 53.4 MB. Max. memory is 7.1 GB. [2020-10-14 04:59:55,527 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 148.4 MB. Free memory was 121.6 MB in the beginning and 121.2 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 342.16 ms. Allocated memory is still 148.4 MB. Free memory was 102.7 MB in the beginning and 92.3 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 141.05 ms. Allocated memory was 148.4 MB in the beginning and 204.5 MB in the end (delta: 56.1 MB). Free memory was 92.3 MB in the beginning and 181.9 MB in the end (delta: -89.7 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 465.30 ms. Allocated memory is still 204.5 MB. Free memory was 181.9 MB in the beginning and 160.4 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 120472.84 ms. Allocated memory was 204.5 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 159.5 MB in the beginning and 1.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 53.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...