/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/ex3_forlist.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 15:42:35,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 15:42:35,710 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 15:42:35,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 15:42:35,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 15:42:35,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 15:42:35,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 15:42:35,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 15:42:35,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 15:42:35,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 15:42:35,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 15:42:35,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 15:42:35,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 15:42:35,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 15:42:35,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 15:42:35,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 15:42:35,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 15:42:35,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 15:42:35,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 15:42:35,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 15:42:35,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 15:42:35,775 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 15:42:35,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 15:42:35,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 15:42:35,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 15:42:35,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 15:42:35,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 15:42:35,792 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 15:42:35,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 15:42:35,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 15:42:35,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 15:42:35,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 15:42:35,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 15:42:35,797 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 15:42:35,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 15:42:35,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 15:42:35,799 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 15:42:35,799 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 15:42:35,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 15:42:35,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 15:42:35,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 15:42:35,803 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 15:42:35,846 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 15:42:35,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 15:42:35,848 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 15:42:35,848 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 15:42:35,848 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 15:42:35,849 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 15:42:35,849 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 15:42:35,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 15:42:35,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 15:42:35,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 15:42:35,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 15:42:35,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 15:42:35,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 15:42:35,852 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 15:42:35,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 15:42:35,852 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 15:42:35,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 15:42:35,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 15:42:35,853 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 15:42:35,853 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 15:42:35,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 15:42:35,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:42:35,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 15:42:35,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 15:42:35,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 15:42:35,854 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 15:42:35,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 15:42:35,854 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 15:42:35,854 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 15:42:35,855 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 15:42:36,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 15:42:36,149 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 15:42:36,152 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 15:42:36,154 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 15:42:36,154 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 15:42:36,155 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/ex3_forlist.i [2020-10-12 15:42:36,222 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b9f36f18/894dab9d47154f19a39e637ae1ff4edb/FLAG1c5c3d213 [2020-10-12 15:42:36,666 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 15:42:36,667 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/ex3_forlist.i [2020-10-12 15:42:36,673 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b9f36f18/894dab9d47154f19a39e637ae1ff4edb/FLAG1c5c3d213 [2020-10-12 15:42:37,049 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b9f36f18/894dab9d47154f19a39e637ae1ff4edb [2020-10-12 15:42:37,058 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 15:42:37,060 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 15:42:37,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 15:42:37,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 15:42:37,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 15:42:37,067 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:42:37" (1/1) ... [2020-10-12 15:42:37,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@326565d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:42:37, skipping insertion in model container [2020-10-12 15:42:37,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:42:37" (1/1) ... [2020-10-12 15:42:37,078 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 15:42:37,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 15:42:37,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:42:37,266 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 15:42:37,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:42:37,310 INFO L208 MainTranslator]: Completed translation [2020-10-12 15:42:37,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:42:37 WrapperNode [2020-10-12 15:42:37,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 15:42:37,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 15:42:37,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 15:42:37,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 15:42:37,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:42:37" (1/1) ... [2020-10-12 15:42:37,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:42:37" (1/1) ... [2020-10-12 15:42:37,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:42:37" (1/1) ... [2020-10-12 15:42:37,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:42:37" (1/1) ... [2020-10-12 15:42:37,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:42:37" (1/1) ... [2020-10-12 15:42:37,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:42:37" (1/1) ... [2020-10-12 15:42:37,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:42:37" (1/1) ... [2020-10-12 15:42:37,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 15:42:37,426 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 15:42:37,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 15:42:37,427 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 15:42:37,427 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:42:37" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:42:37,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 15:42:37,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 15:42:37,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-10-12 15:42:37,492 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 15:42:37,492 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-10-12 15:42:37,492 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-10-12 15:42:37,493 INFO L138 BoogieDeclarations]: Found implementation of procedure malloc [2020-10-12 15:42:37,493 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 15:42:37,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 15:42:37,493 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-10-12 15:42:37,493 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 15:42:37,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 15:42:37,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 15:42:37,494 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-10-12 15:42:37,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 15:42:37,494 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-10-12 15:42:37,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 15:42:37,494 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 15:42:37,494 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 15:42:37,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 15:42:37,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 15:42:37,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-12 15:42:37,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-12 15:42:37,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 15:42:37,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 15:42:37,849 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 15:42:37,849 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-12 15:42:37,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:42:37 BoogieIcfgContainer [2020-10-12 15:42:37,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 15:42:37,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 15:42:37,855 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 15:42:37,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 15:42:37,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 03:42:37" (1/3) ... [2020-10-12 15:42:37,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28ea8197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:42:37, skipping insertion in model container [2020-10-12 15:42:37,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:42:37" (2/3) ... [2020-10-12 15:42:37,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28ea8197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:42:37, skipping insertion in model container [2020-10-12 15:42:37,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:42:37" (3/3) ... [2020-10-12 15:42:37,861 INFO L109 eAbstractionObserver]: Analyzing ICFG ex3_forlist.i [2020-10-12 15:42:37,871 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 15:42:37,878 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 15:42:37,891 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 15:42:37,914 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 15:42:37,914 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 15:42:37,914 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 15:42:37,915 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 15:42:37,915 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 15:42:37,915 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 15:42:37,915 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 15:42:37,915 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 15:42:37,931 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2020-10-12 15:42:37,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-12 15:42:37,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:42:37,938 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] [2020-10-12 15:42:37,939 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:42:37,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:42:37,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1451885248, now seen corresponding path program 1 times [2020-10-12 15:42:37,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:42:37,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1611612938] [2020-10-12 15:42:37,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:42:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:38,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:38,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:38,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:38,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:38,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:39,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:39,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 15:42:39,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 15:42:39,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1712 [2020-10-12 15:42:39,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:39,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 15:42:39,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:42:39,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-12 15:42:39,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 15:42:40,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:42:40,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:40,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:40,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:40,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:42:40,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:42:40,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 15:42:40,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:40,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:42:40,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:42:40,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:42:40,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:42:40,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:42:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:40,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:40,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:40,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:40,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:42:40,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:42:40,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 15:42:40,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:40,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:42:40,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:42:40,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 15:42:40,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:42:40,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-12 15:42:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:40,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:40,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:40,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:42:40,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:42:40,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 15:42:40,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:40,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:42:40,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:42:40,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 15:42:40,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:42:40,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 15:42:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:40,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:40,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:40,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:42:40,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:42:40,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:42:40,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:40,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:42:40,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:42:40,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 15:42:40,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:42:40,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 15:42:40,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:40,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:40,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:40,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:40,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:42:40,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:42:40,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 15:42:40,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:40,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:42:40,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:42:40,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 15:42:40,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:42:40,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 15:42:40,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:40,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:40,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:40,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:40,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:42:40,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:42:40,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 15:42:40,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:40,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:42:40,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:42:40,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 15:42:40,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:42:40,407 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 15:42:40,409 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1611612938] [2020-10-12 15:42:40,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:42:40,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 15:42:40,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744222145] [2020-10-12 15:42:40,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 15:42:40,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:42:40,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 15:42:40,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-12 15:42:40,438 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 13 states. [2020-10-12 15:42:41,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:42:41,588 INFO L93 Difference]: Finished difference Result 122 states and 180 transitions. [2020-10-12 15:42:41,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 15:42:41,590 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 39 [2020-10-12 15:42:41,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:42:41,605 INFO L225 Difference]: With dead ends: 122 [2020-10-12 15:42:41,605 INFO L226 Difference]: Without dead ends: 76 [2020-10-12 15:42:41,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2020-10-12 15:42:41,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-10-12 15:42:41,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 67. [2020-10-12 15:42:41,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-12 15:42:41,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 87 transitions. [2020-10-12 15:42:41,677 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 87 transitions. Word has length 39 [2020-10-12 15:42:41,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:42:41,678 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 87 transitions. [2020-10-12 15:42:41,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 15:42:41,678 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 87 transitions. [2020-10-12 15:42:41,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-12 15:42:41,682 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:42:41,682 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:42:41,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 15:42:41,683 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:42:41,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:42:41,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1646655302, now seen corresponding path program 1 times [2020-10-12 15:42:41,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:42:41,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1081726246] [2020-10-12 15:42:41,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:42:41,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:41,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:41,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:41,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:42,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:42,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:42,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:44,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:44,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-12 15:42:44,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 15:42:44,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2938 [2020-10-12 15:42:44,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:44,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 15:42:44,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:42:44,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 15:42:44,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:42:45,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:42:45,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:45,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:45,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:45,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:42:45,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:42:45,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 15:42:45,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:45,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:42:45,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:42:45,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:42:45,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:42:45,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:42:45,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:45,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:45,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:45,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:45,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:42:45,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:42:45,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 15:42:45,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:45,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:42:45,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:42:45,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 15:42:45,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:42:45,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-12 15:42:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:45,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:45,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:45,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:42:45,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:42:45,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 15:42:45,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:45,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:42:45,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:42:45,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 15:42:45,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:42:45,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 15:42:45,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:45,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:45,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:45,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:42:45,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:42:45,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:42:45,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:45,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:42:45,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:42:45,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 15:42:45,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:42:45,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 15:42:45,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:45,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:45,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:45,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:45,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:42:45,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:42:45,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 15:42:45,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:45,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:42:45,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:42:45,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 15:42:45,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:42:45,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 15:42:45,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:45,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:45,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:45,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:45,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 15:42:45,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:42:45,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 15:42:45,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:45,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:42:45,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:42:45,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 15:42:45,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:42:45,362 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 15:42:45,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1081726246] [2020-10-12 15:42:45,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:42:45,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-12 15:42:45,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444474893] [2020-10-12 15:42:45,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 15:42:45,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:42:45,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 15:42:45,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2020-10-12 15:42:45,367 INFO L87 Difference]: Start difference. First operand 67 states and 87 transitions. Second operand 17 states. [2020-10-12 15:42:46,261 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2020-10-12 15:42:46,412 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2020-10-12 15:42:46,597 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2020-10-12 15:42:47,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:42:47,085 INFO L93 Difference]: Finished difference Result 115 states and 153 transitions. [2020-10-12 15:42:47,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 15:42:47,085 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 40 [2020-10-12 15:42:47,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:42:47,088 INFO L225 Difference]: With dead ends: 115 [2020-10-12 15:42:47,088 INFO L226 Difference]: Without dead ends: 98 [2020-10-12 15:42:47,090 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=191, Invalid=865, Unknown=0, NotChecked=0, Total=1056 [2020-10-12 15:42:47,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-12 15:42:47,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 78. [2020-10-12 15:42:47,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-12 15:42:47,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 104 transitions. [2020-10-12 15:42:47,110 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 104 transitions. Word has length 40 [2020-10-12 15:42:47,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:42:47,111 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 104 transitions. [2020-10-12 15:42:47,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 15:42:47,111 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 104 transitions. [2020-10-12 15:42:47,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-12 15:42:47,113 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:42:47,113 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] [2020-10-12 15:42:47,114 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 15:42:47,114 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:42:47,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:42:47,114 INFO L82 PathProgramCache]: Analyzing trace with hash -2024166110, now seen corresponding path program 1 times [2020-10-12 15:42:47,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:42:47,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [919989302] [2020-10-12 15:42:47,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:42:47,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:47,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:47,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:47,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:47,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:47,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:48,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:48,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:48,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:52,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:52,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-12 15:42:52,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 15:42:52,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 15:42:52,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:52,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-12 15:42:52,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:42:52,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 15:42:52,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:42:52,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:42:52,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:52,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:52,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:52,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:42:52,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:42:52,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 15:42:52,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:52,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:42:52,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:42:52,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:42:52,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:42:52,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:42:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:52,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:52,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:52,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:52,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:42:52,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:42:52,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:42:52,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:52,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:42:52,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:42:52,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 15:42:52,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:42:52,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-12 15:42:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:52,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:52,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:52,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:42:52,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:42:52,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 15:42:52,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:52,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:42:52,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:42:52,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 15:42:52,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:42:53,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 15:42:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:53,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:53,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:53,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:42:53,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:42:53,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:42:53,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:53,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:42:53,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:42:53,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 15:42:53,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:42:53,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 15:42:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:53,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:53,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:53,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:53,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 15:42:53,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:42:53,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 15:42:53,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:53,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:42:53,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:42:53,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 15:42:53,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:42:53,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 15:42:53,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:53,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:53,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:53,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:53,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 15:42:53,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:42:53,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-12 15:42:53,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:53,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:42:53,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:42:53,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 15:42:53,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:42:53,298 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-12 15:42:53,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [919989302] [2020-10-12 15:42:53,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:42:53,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 15:42:53,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660446118] [2020-10-12 15:42:53,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 15:42:53,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:42:53,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 15:42:53,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2020-10-12 15:42:53,307 INFO L87 Difference]: Start difference. First operand 78 states and 104 transitions. Second operand 20 states. [2020-10-12 15:42:54,771 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2020-10-12 15:42:54,914 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2020-10-12 15:42:55,091 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2020-10-12 15:42:56,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:42:56,060 INFO L93 Difference]: Finished difference Result 135 states and 186 transitions. [2020-10-12 15:42:56,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-12 15:42:56,061 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 41 [2020-10-12 15:42:56,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:42:56,065 INFO L225 Difference]: With dead ends: 135 [2020-10-12 15:42:56,065 INFO L226 Difference]: Without dead ends: 116 [2020-10-12 15:42:56,067 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=283, Invalid=1439, Unknown=0, NotChecked=0, Total=1722 [2020-10-12 15:42:56,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-12 15:42:56,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 74. [2020-10-12 15:42:56,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-12 15:42:56,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 96 transitions. [2020-10-12 15:42:56,103 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 96 transitions. Word has length 41 [2020-10-12 15:42:56,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:42:56,104 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 96 transitions. [2020-10-12 15:42:56,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 15:42:56,104 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 96 transitions. [2020-10-12 15:42:56,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-12 15:42:56,109 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:42:56,109 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] [2020-10-12 15:42:56,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 15:42:56,110 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:42:56,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:42:56,110 INFO L82 PathProgramCache]: Analyzing trace with hash 252530885, now seen corresponding path program 1 times [2020-10-12 15:42:56,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:42:56,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [448056463] [2020-10-12 15:42:56,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:42:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:56,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:56,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:56,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:56,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:56,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:56,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:58,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:58,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-12 15:42:58,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 15:42:58,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2411 [2020-10-12 15:42:58,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:58,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-12 15:42:58,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:42:58,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 15:42:58,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:42:58,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:42:58,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:58,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:58,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:58,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:42:58,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:42:58,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:42:58,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:58,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:42:58,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:42:58,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:42:58,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:42:58,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:42:58,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:58,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:58,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:58,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:58,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:42:58,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:42:58,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 15:42:58,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:58,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:42:58,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:42:58,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 15:42:58,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:42:58,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-12 15:42:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:58,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:58,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:58,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:42:58,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:42:58,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:42:58,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:58,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:42:58,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:42:58,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 15:42:58,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:42:58,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 15:42:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:58,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:58,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:58,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:42:58,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:42:58,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:42:58,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:58,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:42:58,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:42:58,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 15:42:58,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:42:58,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 15:42:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:58,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:58,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:58,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:58,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:42:58,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:42:58,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 15:42:58,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:58,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:42:58,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:42:58,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 15:42:58,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:42:58,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 15:42:58,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:42:58,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:58,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:42:58,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:42:58,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:42:58,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:42:58,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 15:42:58,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:42:58,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:42:58,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:42:58,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 15:42:58,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:42:58,946 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 15:42:58,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [448056463] [2020-10-12 15:42:58,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:42:58,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-12 15:42:58,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36257876] [2020-10-12 15:42:58,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 15:42:58,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:42:58,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 15:42:58,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-10-12 15:42:58,950 INFO L87 Difference]: Start difference. First operand 74 states and 96 transitions. Second operand 15 states. [2020-10-12 15:43:00,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:43:00,007 INFO L93 Difference]: Finished difference Result 95 states and 120 transitions. [2020-10-12 15:43:00,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 15:43:00,008 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 42 [2020-10-12 15:43:00,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:43:00,010 INFO L225 Difference]: With dead ends: 95 [2020-10-12 15:43:00,010 INFO L226 Difference]: Without dead ends: 80 [2020-10-12 15:43:00,011 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=125, Invalid=577, Unknown=0, NotChecked=0, Total=702 [2020-10-12 15:43:00,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-12 15:43:00,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 68. [2020-10-12 15:43:00,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-12 15:43:00,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 86 transitions. [2020-10-12 15:43:00,036 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 86 transitions. Word has length 42 [2020-10-12 15:43:00,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:43:00,036 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 86 transitions. [2020-10-12 15:43:00,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 15:43:00,037 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 86 transitions. [2020-10-12 15:43:00,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-12 15:43:00,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:43:00,042 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, 1, 1, 1, 1] [2020-10-12 15:43:00,042 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 15:43:00,044 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:43:00,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:43:00,044 INFO L82 PathProgramCache]: Analyzing trace with hash 2052771691, now seen corresponding path program 1 times [2020-10-12 15:43:00,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:43:00,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [598344684] [2020-10-12 15:43:00,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:43:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:00,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:00,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:00,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:00,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:00,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:00,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:01,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:01,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-12 15:43:01,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 15:43:01,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1689 [2020-10-12 15:43:01,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:01,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-12 15:43:01,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:43:01,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-12 15:43:01,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:01,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:43:01,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:01,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:01,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:01,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:43:01,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:01,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:43:01,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:01,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:43:01,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:43:01,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:43:01,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:01,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:43:01,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:01,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:01,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:01,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:01,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:43:01,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:43:01,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:43:01,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:01,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:43:01,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:01,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 15:43:01,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:01,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-12 15:43:01,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:01,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:01,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:01,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:43:01,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:01,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:43:01,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:01,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:43:01,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:01,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 15:43:01,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:02,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 15:43:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:02,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:02,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:02,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:43:02,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:02,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:43:02,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:02,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:43:02,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:43:02,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 15:43:02,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:02,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 15:43:02,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:02,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:02,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:02,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:02,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:43:02,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:43:02,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:43:02,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:02,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:43:02,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:02,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 15:43:02,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:02,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 15:43:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:02,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:02,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:02,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 15:43:02,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:02,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 15:43:02,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:02,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:43:02,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:02,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 15:43:02,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:02,121 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-12 15:43:02,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [598344684] [2020-10-12 15:43:02,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:43:02,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-12 15:43:02,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765173631] [2020-10-12 15:43:02,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 15:43:02,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:43:02,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 15:43:02,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2020-10-12 15:43:02,123 INFO L87 Difference]: Start difference. First operand 68 states and 86 transitions. Second operand 17 states. [2020-10-12 15:43:03,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:43:03,547 INFO L93 Difference]: Finished difference Result 114 states and 150 transitions. [2020-10-12 15:43:03,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 15:43:03,548 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 43 [2020-10-12 15:43:03,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:43:03,550 INFO L225 Difference]: With dead ends: 114 [2020-10-12 15:43:03,550 INFO L226 Difference]: Without dead ends: 99 [2020-10-12 15:43:03,551 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=177, Invalid=815, Unknown=0, NotChecked=0, Total=992 [2020-10-12 15:43:03,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-12 15:43:03,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 87. [2020-10-12 15:43:03,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-12 15:43:03,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 118 transitions. [2020-10-12 15:43:03,567 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 118 transitions. Word has length 43 [2020-10-12 15:43:03,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:43:03,568 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 118 transitions. [2020-10-12 15:43:03,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 15:43:03,568 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 118 transitions. [2020-10-12 15:43:03,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-12 15:43:03,569 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:43:03,569 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, 1] [2020-10-12 15:43:03,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 15:43:03,569 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:43:03,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:43:03,570 INFO L82 PathProgramCache]: Analyzing trace with hash 526384519, now seen corresponding path program 1 times [2020-10-12 15:43:03,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:43:03,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2082406923] [2020-10-12 15:43:03,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:43:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:03,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:03,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:03,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:03,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:03,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:03,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:04,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:04,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:07,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:07,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-12 15:43:07,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 15:43:07,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3602 [2020-10-12 15:43:07,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:07,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 15:43:07,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:43:07,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-12 15:43:07,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:07,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:43:07,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:07,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:07,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:07,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:43:07,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:07,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:43:07,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:07,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:43:07,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:43:07,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:43:07,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:07,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:43:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:07,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:07,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:07,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:07,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:07,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 15:43:07,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:43:07,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 15:43:07,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:07,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:43:07,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:07,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 15:43:07,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:07,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 15:43:07,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:07,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:07,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:07,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:43:07,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:07,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:43:07,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:07,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:43:07,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:07,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 15:43:07,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:07,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 15:43:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:07,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:07,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:07,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:43:07,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:07,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:43:07,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:07,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:43:07,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:43:07,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 15:43:07,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:07,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 15:43:07,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:07,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:07,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:07,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:07,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:43:07,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:43:07,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:43:07,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:07,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:43:07,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:07,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 15:43:07,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:07,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-12 15:43:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:07,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:07,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:07,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:07,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:43:07,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:43:07,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:43:07,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:07,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:43:07,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:07,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 15:43:07,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:07,671 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 15:43:07,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2082406923] [2020-10-12 15:43:07,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:43:07,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-12 15:43:07,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393075129] [2020-10-12 15:43:07,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 15:43:07,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:43:07,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 15:43:07,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-10-12 15:43:07,673 INFO L87 Difference]: Start difference. First operand 87 states and 118 transitions. Second operand 16 states. [2020-10-12 15:43:08,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:43:08,930 INFO L93 Difference]: Finished difference Result 133 states and 179 transitions. [2020-10-12 15:43:08,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 15:43:08,931 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 44 [2020-10-12 15:43:08,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:43:08,933 INFO L225 Difference]: With dead ends: 133 [2020-10-12 15:43:08,933 INFO L226 Difference]: Without dead ends: 118 [2020-10-12 15:43:08,934 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=153, Invalid=717, Unknown=0, NotChecked=0, Total=870 [2020-10-12 15:43:08,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-10-12 15:43:08,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 100. [2020-10-12 15:43:08,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-10-12 15:43:08,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 139 transitions. [2020-10-12 15:43:08,981 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 139 transitions. Word has length 44 [2020-10-12 15:43:08,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:43:08,983 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 139 transitions. [2020-10-12 15:43:08,983 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 15:43:08,983 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 139 transitions. [2020-10-12 15:43:08,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-12 15:43:08,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:43:08,985 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, 1, 1] [2020-10-12 15:43:08,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 15:43:08,985 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:43:08,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:43:08,985 INFO L82 PathProgramCache]: Analyzing trace with hash 925427910, now seen corresponding path program 1 times [2020-10-12 15:43:08,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:43:08,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [29143378] [2020-10-12 15:43:08,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:43:08,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:09,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:09,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:09,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:09,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:09,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:09,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:09,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:09,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:10,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:10,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:10,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:10,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:12,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:14,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:14,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-12 15:43:14,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-12 15:43:14,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 15:43:14,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:14,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-12 15:43:14,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:43:14,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 15:43:14,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:14,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:43:14,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:14,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:14,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:14,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:43:14,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:14,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:43:14,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:14,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:43:14,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:43:14,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:43:14,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:14,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:43:14,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:14,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:14,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:14,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:14,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:43:14,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:43:14,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:43:14,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:14,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:43:14,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:14,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 15:43:14,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:14,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-12 15:43:14,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:14,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:14,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:14,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:43:14,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:14,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:43:14,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:14,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:43:14,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:14,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 15:43:14,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:14,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 15:43:14,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:14,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:14,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:14,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:43:14,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:14,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:43:14,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:14,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:43:14,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:14,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 15:43:14,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:14,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 15:43:14,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:14,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:14,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:14,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:14,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:43:14,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:43:14,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:43:14,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:14,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:43:14,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:14,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 15:43:14,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:14,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 15:43:14,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:14,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:14,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:14,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 15:43:14,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:14,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 15:43:14,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:14,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 15:43:14,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:14,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 15:43:14,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:14,733 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-12 15:43:14,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [29143378] [2020-10-12 15:43:14,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:43:14,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 15:43:14,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570238181] [2020-10-12 15:43:14,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-12 15:43:14,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:43:14,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-12 15:43:14,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=376, Unknown=0, NotChecked=0, Total=420 [2020-10-12 15:43:14,735 INFO L87 Difference]: Start difference. First operand 100 states and 139 transitions. Second operand 21 states. [2020-10-12 15:43:17,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:43:17,975 INFO L93 Difference]: Finished difference Result 267 states and 363 transitions. [2020-10-12 15:43:17,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-12 15:43:17,975 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 45 [2020-10-12 15:43:17,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:43:17,978 INFO L225 Difference]: With dead ends: 267 [2020-10-12 15:43:17,978 INFO L226 Difference]: Without dead ends: 199 [2020-10-12 15:43:17,980 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=385, Invalid=2371, Unknown=0, NotChecked=0, Total=2756 [2020-10-12 15:43:17,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2020-10-12 15:43:18,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 160. [2020-10-12 15:43:18,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-10-12 15:43:18,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 216 transitions. [2020-10-12 15:43:18,007 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 216 transitions. Word has length 45 [2020-10-12 15:43:18,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:43:18,007 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 216 transitions. [2020-10-12 15:43:18,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-12 15:43:18,008 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 216 transitions. [2020-10-12 15:43:18,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-12 15:43:18,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:43:18,009 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:43:18,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 15:43:18,009 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:43:18,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:43:18,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1033008709, now seen corresponding path program 1 times [2020-10-12 15:43:18,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:43:18,010 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [452310836] [2020-10-12 15:43:18,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:43:18,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:18,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:18,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:18,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:18,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:18,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:19,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:19,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:19,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:19,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:19,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:19,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:19,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:19,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:21,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:21,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:21,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:22,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:23,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:23,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-12 15:43:23,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-12 15:43:23,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 15:43:23,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:23,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-12 15:43:23,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:43:23,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-12 15:43:23,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:23,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:43:23,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:23,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:23,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:23,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:43:23,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:23,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:43:23,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:23,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:43:23,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:43:23,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:43:23,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:23,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:43:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:23,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:23,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:23,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:23,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:23,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 15:43:23,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:43:23,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 15:43:23,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:23,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:43:23,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:23,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 15:43:23,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:23,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 15:43:23,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:23,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:23,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:23,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:43:23,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:23,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:43:23,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:23,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:43:23,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:23,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 15:43:23,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:23,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 15:43:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:23,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:23,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:23,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:43:23,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:23,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:43:23,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:23,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:43:23,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:43:23,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 15:43:23,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:23,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 15:43:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:23,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:23,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:23,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 15:43:23,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:23,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 15:43:23,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:23,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 15:43:23,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:23,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 15:43:23,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:23,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 15:43:23,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:23,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:23,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:23,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 15:43:23,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:23,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 15:43:23,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:23,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:43:23,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:23,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 15:43:23,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:24,109 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-12 15:43:24,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [452310836] [2020-10-12 15:43:24,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:43:24,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-12 15:43:24,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903307463] [2020-10-12 15:43:24,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-12 15:43:24,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:43:24,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-12 15:43:24,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2020-10-12 15:43:24,115 INFO L87 Difference]: Start difference. First operand 160 states and 216 transitions. Second operand 26 states. [2020-10-12 15:43:27,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:43:27,324 INFO L93 Difference]: Finished difference Result 297 states and 397 transitions. [2020-10-12 15:43:27,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-12 15:43:27,325 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 46 [2020-10-12 15:43:27,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:43:27,328 INFO L225 Difference]: With dead ends: 297 [2020-10-12 15:43:27,328 INFO L226 Difference]: Without dead ends: 248 [2020-10-12 15:43:27,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=429, Invalid=2651, Unknown=0, NotChecked=0, Total=3080 [2020-10-12 15:43:27,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-10-12 15:43:27,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 174. [2020-10-12 15:43:27,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-10-12 15:43:27,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 232 transitions. [2020-10-12 15:43:27,366 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 232 transitions. Word has length 46 [2020-10-12 15:43:27,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:43:27,367 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 232 transitions. [2020-10-12 15:43:27,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-12 15:43:27,367 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 232 transitions. [2020-10-12 15:43:27,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-12 15:43:27,368 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:43:27,368 INFO L422 BasicCegarLoop]: trace histogram [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, 1] [2020-10-12 15:43:27,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 15:43:27,369 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:43:27,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:43:27,369 INFO L82 PathProgramCache]: Analyzing trace with hash -320638830, now seen corresponding path program 1 times [2020-10-12 15:43:27,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:43:27,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [840033094] [2020-10-12 15:43:27,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:43:27,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:27,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:27,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:27,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:27,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:27,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:27,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:30,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:32,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:32,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-12 15:43:32,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 15:43:32,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 15:43:32,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:32,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 15:43:32,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:43:32,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 15:43:32,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:32,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:43:32,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:32,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:32,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:32,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:43:32,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:32,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:43:32,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:32,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:43:32,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:43:32,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:43:32,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:32,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:43:32,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:32,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:32,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:32,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:32,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:43:32,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:43:32,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:43:32,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:32,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:43:32,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 15:43:32,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:43:32,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:32,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-12 15:43:32,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:32,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:32,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:32,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:43:32,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:32,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:43:32,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:32,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:43:32,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:32,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 15:43:32,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:32,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 15:43:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:32,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:32,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:32,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:43:32,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:32,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:43:32,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:32,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:43:32,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:43:32,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 15:43:32,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:32,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 15:43:32,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:32,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:32,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:32,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:32,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:32,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 15:43:32,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:43:32,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 15:43:32,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:32,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 15:43:32,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:43:32,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 15:43:32,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:32,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-12 15:43:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:32,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:32,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:32,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 15:43:32,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:32,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 15:43:32,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:32,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:43:32,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:32,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 15:43:32,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:32,791 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 15:43:32,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [840033094] [2020-10-12 15:43:32,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:43:32,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-12 15:43:32,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475115526] [2020-10-12 15:43:32,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-12 15:43:32,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:43:32,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-12 15:43:32,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2020-10-12 15:43:32,794 INFO L87 Difference]: Start difference. First operand 174 states and 232 transitions. Second operand 18 states. [2020-10-12 15:43:34,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:43:34,142 INFO L93 Difference]: Finished difference Result 306 states and 394 transitions. [2020-10-12 15:43:34,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-12 15:43:34,143 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 47 [2020-10-12 15:43:34,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:43:34,145 INFO L225 Difference]: With dead ends: 306 [2020-10-12 15:43:34,145 INFO L226 Difference]: Without dead ends: 163 [2020-10-12 15:43:34,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=176, Invalid=946, Unknown=0, NotChecked=0, Total=1122 [2020-10-12 15:43:34,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-10-12 15:43:34,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 144. [2020-10-12 15:43:34,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-12 15:43:34,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 182 transitions. [2020-10-12 15:43:34,178 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 182 transitions. Word has length 47 [2020-10-12 15:43:34,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:43:34,178 INFO L479 AbstractCegarLoop]: Abstraction has 144 states and 182 transitions. [2020-10-12 15:43:34,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-12 15:43:34,178 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 182 transitions. [2020-10-12 15:43:34,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-12 15:43:34,179 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:43:34,179 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:43:34,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 15:43:34,180 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:43:34,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:43:34,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1667289511, now seen corresponding path program 1 times [2020-10-12 15:43:34,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:43:34,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [271002523] [2020-10-12 15:43:34,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:43:34,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:34,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:34,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:34,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:34,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:34,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:34,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:34,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:35,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:35,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:35,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:35,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:35,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:35,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:36,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:37,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:37,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:37,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:37,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:37,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:37,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:38,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:39,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:39,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 15:43:39,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-10-12 15:43:39,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 15:43:39,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:39,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-12 15:43:39,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:43:39,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-12 15:43:39,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:39,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:43:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:39,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:39,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:39,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:43:39,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:39,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:43:39,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:39,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:43:39,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:43:39,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:43:39,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:39,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:43:39,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:39,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:39,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:39,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:39,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:39,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 15:43:39,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:43:39,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 15:43:39,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:39,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:43:39,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:43:39,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 15:43:39,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:39,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 15:43:39,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:39,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:39,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:39,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:43:39,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:39,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:43:39,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:39,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:43:39,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:39,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 15:43:39,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:39,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 15:43:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:39,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:39,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:39,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:43:39,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:39,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:43:39,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:39,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:43:39,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:43:39,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 15:43:39,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:39,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 15:43:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:39,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:39,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:39,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 15:43:39,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:39,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 15:43:39,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:39,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 15:43:39,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:39,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 15:43:39,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:39,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 15:43:39,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:39,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:39,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:39,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:39,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 15:43:39,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:43:39,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 15:43:39,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:39,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:43:39,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:39,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 15:43:39,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:40,032 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 15:43:40,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [271002523] [2020-10-12 15:43:40,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:43:40,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-12 15:43:40,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839374474] [2020-10-12 15:43:40,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-12 15:43:40,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:43:40,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-12 15:43:40,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2020-10-12 15:43:40,034 INFO L87 Difference]: Start difference. First operand 144 states and 182 transitions. Second operand 23 states. [2020-10-12 15:43:43,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:43:43,475 INFO L93 Difference]: Finished difference Result 252 states and 318 transitions. [2020-10-12 15:43:43,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 15:43:43,475 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 50 [2020-10-12 15:43:43,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:43:43,478 INFO L225 Difference]: With dead ends: 252 [2020-10-12 15:43:43,478 INFO L226 Difference]: Without dead ends: 230 [2020-10-12 15:43:43,479 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=393, Invalid=2363, Unknown=0, NotChecked=0, Total=2756 [2020-10-12 15:43:43,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-10-12 15:43:43,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 189. [2020-10-12 15:43:43,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-10-12 15:43:43,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 240 transitions. [2020-10-12 15:43:43,504 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 240 transitions. Word has length 50 [2020-10-12 15:43:43,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:43:43,505 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 240 transitions. [2020-10-12 15:43:43,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-12 15:43:43,505 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 240 transitions. [2020-10-12 15:43:43,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-12 15:43:43,505 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:43:43,506 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, 1, 1, 1] [2020-10-12 15:43:43,506 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 15:43:43,506 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:43:43,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:43:43,506 INFO L82 PathProgramCache]: Analyzing trace with hash -243323929, now seen corresponding path program 1 times [2020-10-12 15:43:43,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:43:43,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [864757661] [2020-10-12 15:43:43,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:43:43,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:43,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:43,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:43,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:43,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:43,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:45,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:48,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:48,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 15:43:48,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 15:43:48,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 15:43:48,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:48,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-12 15:43:48,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:43:48,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 15:43:48,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:48,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:43:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:48,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:48,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:48,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:43:48,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:48,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:43:48,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:48,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:43:48,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:43:48,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:43:48,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:48,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:43:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:48,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:48,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:48,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:48,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:48,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 15:43:48,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:43:48,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 15:43:48,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:48,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:43:48,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:48,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 15:43:48,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:48,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 15:43:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:48,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:48,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:48,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:43:48,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:48,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:43:48,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:48,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:43:48,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:43:48,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 15:43:48,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:48,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 15:43:48,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:48,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:48,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:48,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:43:48,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:48,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:43:48,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:48,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:43:48,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:43:48,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 15:43:48,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:48,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 15:43:48,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:48,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:48,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:48,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 15:43:48,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:48,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 15:43:48,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:48,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:43:48,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:48,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 15:43:48,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:48,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 15:43:48,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:48,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:48,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:48,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:48,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 15:43:48,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:43:48,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 15:43:48,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:48,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 15:43:48,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:48,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 15:43:48,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:48,915 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-12 15:43:48,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [864757661] [2020-10-12 15:43:48,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:43:48,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-12 15:43:48,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002420860] [2020-10-12 15:43:48,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 15:43:48,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:43:48,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 15:43:48,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2020-10-12 15:43:48,917 INFO L87 Difference]: Start difference. First operand 189 states and 240 transitions. Second operand 15 states. [2020-10-12 15:43:50,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:43:50,267 INFO L93 Difference]: Finished difference Result 225 states and 285 transitions. [2020-10-12 15:43:50,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 15:43:50,269 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 51 [2020-10-12 15:43:50,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:43:50,271 INFO L225 Difference]: With dead ends: 225 [2020-10-12 15:43:50,271 INFO L226 Difference]: Without dead ends: 118 [2020-10-12 15:43:50,272 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=260, Invalid=670, Unknown=0, NotChecked=0, Total=930 [2020-10-12 15:43:50,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-10-12 15:43:50,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 109. [2020-10-12 15:43:50,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-12 15:43:50,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 133 transitions. [2020-10-12 15:43:50,286 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 133 transitions. Word has length 51 [2020-10-12 15:43:50,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:43:50,286 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 133 transitions. [2020-10-12 15:43:50,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 15:43:50,287 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 133 transitions. [2020-10-12 15:43:50,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-12 15:43:50,287 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:43:50,287 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, 1, 1, 1] [2020-10-12 15:43:50,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 15:43:50,288 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:43:50,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:43:50,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1872792877, now seen corresponding path program 1 times [2020-10-12 15:43:50,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:43:50,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [774878832] [2020-10-12 15:43:50,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:43:50,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:50,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:50,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:50,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:50,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:50,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:51,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:52,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:52,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:52,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:52,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:53,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:53,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:53,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:53,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:53,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:53,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:54,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:54,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:54,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:54,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:54,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:55,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:55,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 15:43:55,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-10-12 15:43:55,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-12 15:43:55,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:55,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-12 15:43:55,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:43:55,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 15:43:55,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:55,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:43:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:55,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:55,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:55,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:43:55,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:55,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:43:55,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:55,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:43:55,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:43:55,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:43:55,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:55,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:43:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:55,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:55,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:55,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:55,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:55,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 15:43:55,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:43:55,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 15:43:55,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:55,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:43:55,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:55,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 15:43:55,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:56,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 15:43:56,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:56,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:56,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:56,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:43:56,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:56,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:43:56,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:56,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:43:56,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:56,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 15:43:56,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:56,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 15:43:56,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:56,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:56,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:56,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:43:56,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:56,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:43:56,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:56,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:43:56,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:56,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 15:43:56,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:56,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 15:43:56,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:56,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:56,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:56,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 15:43:56,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:56,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 15:43:56,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:56,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 15:43:56,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:56,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 15:43:56,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:56,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 15:43:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:56,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:56,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:43:56,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 15:43:56,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:43:56,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 15:43:56,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:43:56,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 15:43:56,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:43:56,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 15:43:56,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:43:56,399 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 15:43:56,400 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [774878832] [2020-10-12 15:43:56,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:43:56,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-12 15:43:56,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619122527] [2020-10-12 15:43:56,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-12 15:43:56,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:43:56,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-12 15:43:56,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=579, Unknown=0, NotChecked=0, Total=650 [2020-10-12 15:43:56,401 INFO L87 Difference]: Start difference. First operand 109 states and 133 transitions. Second operand 26 states. [2020-10-12 15:43:58,910 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2020-10-12 15:43:59,205 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2020-10-12 15:43:59,439 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2020-10-12 15:43:59,694 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-10-12 15:43:59,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:43:59,766 INFO L93 Difference]: Finished difference Result 164 states and 201 transitions. [2020-10-12 15:43:59,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-12 15:43:59,766 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 51 [2020-10-12 15:43:59,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:43:59,768 INFO L225 Difference]: With dead ends: 164 [2020-10-12 15:43:59,768 INFO L226 Difference]: Without dead ends: 149 [2020-10-12 15:43:59,770 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=368, Invalid=2284, Unknown=0, NotChecked=0, Total=2652 [2020-10-12 15:43:59,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-10-12 15:43:59,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 95. [2020-10-12 15:43:59,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-10-12 15:43:59,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 114 transitions. [2020-10-12 15:43:59,780 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 114 transitions. Word has length 51 [2020-10-12 15:43:59,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:43:59,781 INFO L479 AbstractCegarLoop]: Abstraction has 95 states and 114 transitions. [2020-10-12 15:43:59,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-12 15:43:59,781 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 114 transitions. [2020-10-12 15:43:59,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-12 15:43:59,782 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:43:59,782 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, 1, 1, 1] [2020-10-12 15:43:59,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 15:43:59,782 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:43:59,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:43:59,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1494299191, now seen corresponding path program 2 times [2020-10-12 15:43:59,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:43:59,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1485648130] [2020-10-12 15:43:59,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:43:59,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:43:59,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:59,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:59,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:59,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:43:59,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:00,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:00,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:00,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:00,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:02,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:04,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:04,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:04,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:04,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:04,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:04,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 15:44:04,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 15:44:04,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 15:44:04,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:04,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 15:44:04,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:44:04,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 15:44:04,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:05,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:44:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:05,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:05,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:05,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:44:05,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:05,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:44:05,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:05,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:44:05,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:05,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:44:05,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:05,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:44:05,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:05,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:05,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:05,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:05,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 15:44:05,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:44:05,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 15:44:05,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:05,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:44:05,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:44:05,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 15:44:05,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:05,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 15:44:05,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:05,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:05,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:05,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:44:05,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:05,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:44:05,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:05,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:44:05,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:44:05,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 15:44:05,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:05,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 15:44:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:05,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:05,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:05,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:44:05,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:05,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:44:05,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:05,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:44:05,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:05,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 15:44:05,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:05,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 15:44:05,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:05,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:05,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:05,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:05,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 15:44:05,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:44:05,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 15:44:05,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:05,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:44:05,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:44:05,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 15:44:05,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:05,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 15:44:05,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:05,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:05,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:05,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:05,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 15:44:05,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:44:05,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 15:44:05,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:05,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 15:44:05,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:44:05,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 15:44:05,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:05,597 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 15:44:05,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1485648130] [2020-10-12 15:44:05,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:44:05,598 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-12 15:44:05,598 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238656414] [2020-10-12 15:44:05,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-12 15:44:05,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:44:05,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-12 15:44:05,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2020-10-12 15:44:05,599 INFO L87 Difference]: Start difference. First operand 95 states and 114 transitions. Second operand 23 states. [2020-10-12 15:44:07,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:44:07,882 INFO L93 Difference]: Finished difference Result 111 states and 133 transitions. [2020-10-12 15:44:07,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-12 15:44:07,883 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 51 [2020-10-12 15:44:07,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:44:07,884 INFO L225 Difference]: With dead ends: 111 [2020-10-12 15:44:07,885 INFO L226 Difference]: Without dead ends: 78 [2020-10-12 15:44:07,886 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=300, Invalid=1770, Unknown=0, NotChecked=0, Total=2070 [2020-10-12 15:44:07,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-10-12 15:44:07,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 69. [2020-10-12 15:44:07,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-12 15:44:07,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 79 transitions. [2020-10-12 15:44:07,901 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 79 transitions. Word has length 51 [2020-10-12 15:44:07,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:44:07,901 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 79 transitions. [2020-10-12 15:44:07,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-12 15:44:07,902 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 79 transitions. [2020-10-12 15:44:07,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-12 15:44:07,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:44:07,902 INFO L422 BasicCegarLoop]: trace histogram [3, 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, 1] [2020-10-12 15:44:07,903 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 15:44:07,903 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:44:07,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:44:07,903 INFO L82 PathProgramCache]: Analyzing trace with hash 2125047699, now seen corresponding path program 1 times [2020-10-12 15:44:07,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:44:07,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1354626711] [2020-10-12 15:44:07,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:44:07,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:07,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:07,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:08,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:08,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:08,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:08,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:08,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:12,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:12,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:12,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 15:44:12,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 15:44:12,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 15:44:12,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:12,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-12 15:44:12,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:44:12,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 15:44:12,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:13,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:44:13,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:13,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:13,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:13,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:44:13,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:13,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:44:13,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:13,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:44:13,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:13,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:44:13,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:13,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:44:13,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:13,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:13,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:13,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:13,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:13,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 15:44:13,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:44:13,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 15:44:13,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:13,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:44:13,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:44:13,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 15:44:13,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:13,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 15:44:13,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:13,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:13,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:13,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:44:13,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:13,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:44:13,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:13,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:44:13,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:13,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 15:44:13,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:13,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 15:44:13,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:13,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:13,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:13,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:44:13,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:13,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:44:13,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:13,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:44:13,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:13,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 15:44:13,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:13,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 15:44:13,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:13,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:13,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:13,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 15:44:13,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:13,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 15:44:13,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:13,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 15:44:13,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:44:13,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 15:44:13,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:13,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 15:44:13,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:13,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:13,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:13,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:13,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 15:44:13,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:44:13,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 15:44:13,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:13,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 15:44:13,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:44:13,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 15:44:13,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:13,587 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 15:44:13,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1354626711] [2020-10-12 15:44:13,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:44:13,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-12 15:44:13,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357728996] [2020-10-12 15:44:13,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-12 15:44:13,589 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:44:13,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-12 15:44:13,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2020-10-12 15:44:13,589 INFO L87 Difference]: Start difference. First operand 69 states and 79 transitions. Second operand 21 states. [2020-10-12 15:44:15,024 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2020-10-12 15:44:15,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:44:15,244 INFO L93 Difference]: Finished difference Result 99 states and 116 transitions. [2020-10-12 15:44:15,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 15:44:15,245 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 52 [2020-10-12 15:44:15,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:44:15,246 INFO L225 Difference]: With dead ends: 99 [2020-10-12 15:44:15,246 INFO L226 Difference]: Without dead ends: 75 [2020-10-12 15:44:15,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=267, Invalid=1065, Unknown=0, NotChecked=0, Total=1332 [2020-10-12 15:44:15,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-12 15:44:15,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 68. [2020-10-12 15:44:15,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-12 15:44:15,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 76 transitions. [2020-10-12 15:44:15,257 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 76 transitions. Word has length 52 [2020-10-12 15:44:15,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:44:15,258 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 76 transitions. [2020-10-12 15:44:15,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-12 15:44:15,258 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 76 transitions. [2020-10-12 15:44:15,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-12 15:44:15,258 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:44:15,258 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, 1, 1, 1, 1, 1, 1] [2020-10-12 15:44:15,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 15:44:15,259 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:44:15,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:44:15,259 INFO L82 PathProgramCache]: Analyzing trace with hash -4735021, now seen corresponding path program 1 times [2020-10-12 15:44:15,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:44:15,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [884919452] [2020-10-12 15:44:15,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:44:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:15,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:15,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:15,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:15,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:15,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:16,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:19,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:19,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:19,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:20,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:20,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:20,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:20,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:20,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 15:44:20,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-12 15:44:20,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 15:44:20,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:20,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-12 15:44:20,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:44:20,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 15:44:20,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:20,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:44:20,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:20,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:20,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:20,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:44:20,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:20,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:44:20,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:20,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:44:20,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:20,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:44:20,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:20,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:44:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:20,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:20,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:20,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:20,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:20,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 15:44:20,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:44:20,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 15:44:20,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:20,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:44:20,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:44:20,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 15:44:20,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:20,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 15:44:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:20,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:20,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:20,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:44:20,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:20,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:44:20,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:20,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:44:20,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:44:20,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 15:44:20,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:21,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 15:44:21,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:21,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:21,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:21,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:44:21,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:21,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:44:21,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:21,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:44:21,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:44:21,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 15:44:21,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:21,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 15:44:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:21,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:21,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:21,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:21,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 15:44:21,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:44:21,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 15:44:21,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:21,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:44:21,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:44:21,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 15:44:21,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:21,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 15:44:21,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:21,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:21,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:21,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 15:44:21,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:21,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 15:44:21,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:21,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:44:21,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:44:21,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 15:44:21,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:21,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 15:44:21,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:21,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:21,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:21,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:21,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 15:44:21,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:44:21,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 15:44:21,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:21,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:44:21,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:44:21,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 15:44:21,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:21,245 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 15:44:21,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [884919452] [2020-10-12 15:44:21,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:44:21,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 15:44:21,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383738751] [2020-10-12 15:44:21,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-12 15:44:21,247 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:44:21,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-12 15:44:21,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2020-10-12 15:44:21,247 INFO L87 Difference]: Start difference. First operand 68 states and 76 transitions. Second operand 21 states. [2020-10-12 15:44:23,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:44:23,413 INFO L93 Difference]: Finished difference Result 100 states and 114 transitions. [2020-10-12 15:44:23,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-12 15:44:23,414 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 54 [2020-10-12 15:44:23,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:44:23,415 INFO L225 Difference]: With dead ends: 100 [2020-10-12 15:44:23,415 INFO L226 Difference]: Without dead ends: 94 [2020-10-12 15:44:23,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 4 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=329, Invalid=1563, Unknown=0, NotChecked=0, Total=1892 [2020-10-12 15:44:23,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-10-12 15:44:23,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 79. [2020-10-12 15:44:23,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-12 15:44:23,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 89 transitions. [2020-10-12 15:44:23,430 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 89 transitions. Word has length 54 [2020-10-12 15:44:23,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:44:23,431 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 89 transitions. [2020-10-12 15:44:23,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-12 15:44:23,431 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 89 transitions. [2020-10-12 15:44:23,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-12 15:44:23,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:44:23,432 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, 1, 1, 1, 1, 1] [2020-10-12 15:44:23,432 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 15:44:23,432 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:44:23,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:44:23,433 INFO L82 PathProgramCache]: Analyzing trace with hash 833068312, now seen corresponding path program 1 times [2020-10-12 15:44:23,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:44:23,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [534077625] [2020-10-12 15:44:23,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:44:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:23,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:23,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:23,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:23,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:23,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:23,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:24,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:26,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:27,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:27,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:28,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:28,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-12 15:44:28,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 15:44:28,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 15:44:28,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:28,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-12 15:44:28,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:44:28,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 15:44:28,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:28,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:44:28,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:28,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:28,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:28,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:44:28,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:28,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:44:28,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:28,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:44:28,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:28,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:44:28,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:28,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:44:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:28,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:28,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:28,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:28,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:28,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 15:44:28,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:44:28,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 15:44:28,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:28,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:44:28,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:28,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 15:44:28,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:29,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 15:44:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:29,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:29,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:29,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:44:29,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:29,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:44:29,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:29,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:44:29,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:29,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 15:44:29,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:29,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 15:44:29,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:29,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:29,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:29,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:44:29,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:29,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:44:29,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:29,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:44:29,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:44:29,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 15:44:29,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:29,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 15:44:29,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:29,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:29,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:29,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 15:44:29,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:29,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 15:44:29,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:29,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 15:44:29,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:44:29,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 15:44:29,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:29,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 15:44:29,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:29,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:29,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:29,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 15:44:29,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:29,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 15:44:29,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:29,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:44:29,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:44:29,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 15:44:29,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:29,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 15:44:29,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:29,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:29,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:29,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:29,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 15:44:29,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:44:29,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 15:44:29,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:29,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 15:44:29,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:44:29,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 15:44:29,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:29,375 ERROR L253 erpolLogProxyWrapper]: Symbol error in Interpolant 4: A-local: [(|#memory_$Pointer$.offset_-1| (Array Int (Array Int Int)))], B-local: []. [2020-10-12 15:44:29,376 ERROR L253 erpolLogProxyWrapper]: Symbol error in Interpolant 5: A-local: [(|#memory_$Pointer$.offset_-1| (Array Int (Array Int Int)))], B-local: []. [2020-10-12 15:44:29,377 ERROR L253 erpolLogProxyWrapper]: Symbol error in Interpolant 6: A-local: [(|#memory_$Pointer$.offset_-1| (Array Int (Array Int Int)))], B-local: []. [2020-10-12 15:44:29,377 ERROR L253 erpolLogProxyWrapper]: Symbol error in Interpolant 7: A-local: [(|#memory_$Pointer$.offset_-1| (Array Int (Array Int Int)))], B-local: []. [2020-10-12 15:44:29,378 ERROR L253 erpolLogProxyWrapper]: Interpolant 8 not inductive [2020-10-12 15:44:29,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 15:44:29,379 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) [2020-10-12 15:44:29,384 INFO L168 Benchmark]: Toolchain (without parser) took 112324.00 ms. Allocated memory was 141.0 MB in the beginning and 1.1 GB in the end (delta: 956.8 MB). Free memory was 104.1 MB in the beginning and 202.3 MB in the end (delta: -98.3 MB). Peak memory consumption was 858.6 MB. Max. memory is 7.1 GB. [2020-10-12 15:44:29,384 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 15:44:29,385 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.45 ms. Allocated memory is still 141.0 MB. Free memory was 103.8 MB in the beginning and 92.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-10-12 15:44:29,386 INFO L168 Benchmark]: Boogie Preprocessor took 114.96 ms. Allocated memory was 141.0 MB in the beginning and 203.4 MB in the end (delta: 62.4 MB). Free memory was 92.8 MB in the beginning and 180.8 MB in the end (delta: -88.0 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-10-12 15:44:29,386 INFO L168 Benchmark]: RCFGBuilder took 426.99 ms. Allocated memory is still 203.4 MB. Free memory was 180.8 MB in the beginning and 158.4 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-10-12 15:44:29,387 INFO L168 Benchmark]: TraceAbstraction took 111527.64 ms. Allocated memory was 203.4 MB in the beginning and 1.1 GB in the end (delta: 894.4 MB). Free memory was 158.4 MB in the beginning and 202.3 MB in the end (delta: -44.0 MB). Peak memory consumption was 850.5 MB. Max. memory is 7.1 GB. [2020-10-12 15:44:29,390 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 249.45 ms. Allocated memory is still 141.0 MB. Free memory was 103.8 MB in the beginning and 92.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.96 ms. Allocated memory was 141.0 MB in the beginning and 203.4 MB in the end (delta: 62.4 MB). Free memory was 92.8 MB in the beginning and 180.8 MB in the end (delta: -88.0 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 426.99 ms. Allocated memory is still 203.4 MB. Free memory was 180.8 MB in the beginning and 158.4 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 111527.64 ms. Allocated memory was 203.4 MB in the beginning and 1.1 GB in the end (delta: 894.4 MB). Free memory was 158.4 MB in the beginning and 202.3 MB in the end (delta: -44.0 MB). Peak memory consumption was 850.5 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...