/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 SingleStatement --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=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:31:15,797 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:31:15,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:31:15,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:31:15,828 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:31:15,830 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:31:15,831 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:31:15,833 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:31:15,835 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:31:15,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:31:15,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:31:15,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:31:15,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:31:15,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:31:15,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:31:15,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:31:15,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:31:15,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:31:15,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:31:15,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:31:15,850 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:31:15,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:31:15,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:31:15,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:31:15,857 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:31:15,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:31:15,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:31:15,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:31:15,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:31:15,861 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:31:15,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:31:15,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:31:15,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:31:15,866 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:31:15,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:31:15,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:31:15,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:31:15,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:31:15,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:31:15,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:31:15,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:31:15,875 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 [2020-09-25 03:31:15,928 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:31:15,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:31:15,930 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:31:15,930 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:31:15,930 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:31:15,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:31:15,931 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:31:15,931 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:31:15,932 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:31:15,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:31:15,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:31:15,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:31:15,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:31:15,934 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:31:15,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:31:15,934 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:31:15,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:31:15,934 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:31:15,935 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:31:15,935 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:31:15,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:31:15,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:31:15,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:31:15,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:31:15,936 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:31:15,936 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:31:15,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:31:15,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:31:15,937 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:31:15,937 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 -> SingleStatement 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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=true; [2020-09-25 03:31:16,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:31:16,429 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:31:16,433 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:31:16,435 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:31:16,436 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:31:16,437 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2020-09-25 03:31:16,525 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fd9693d67/484802bdb86d46288974e34a86b8160d/FLAGa297d1a60 [2020-09-25 03:31:17,306 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:31:17,308 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2020-09-25 03:31:17,341 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fd9693d67/484802bdb86d46288974e34a86b8160d/FLAGa297d1a60 [2020-09-25 03:31:17,393 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fd9693d67/484802bdb86d46288974e34a86b8160d [2020-09-25 03:31:17,408 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:31:17,412 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:31:17,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:31:17,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:31:17,417 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:31:17,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:31:17" (1/1) ... [2020-09-25 03:31:17,422 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@384a97ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:31:17, skipping insertion in model container [2020-09-25 03:31:17,422 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:31:17" (1/1) ... [2020-09-25 03:31:17,431 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:31:17,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:31:19,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:31:19,324 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:31:20,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:31:20,322 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:31:20,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:31:20 WrapperNode [2020-09-25 03:31:20,324 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:31:20,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:31:20,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:31:20,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:31:20,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:31:20" (1/1) ... [2020-09-25 03:31:20,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:31:20" (1/1) ... [2020-09-25 03:31:20,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:31:20" (1/1) ... [2020-09-25 03:31:20,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:31:20" (1/1) ... [2020-09-25 03:31:20,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:31:20" (1/1) ... [2020-09-25 03:31:20,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:31:20" (1/1) ... [2020-09-25 03:31:20,579 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:31:20" (1/1) ... [2020-09-25 03:31:20,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:31:20,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:31:20,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:31:20,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:31:20,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:31:20" (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 [2020-09-25 03:31:20,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:31:20,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:31:20,700 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 03:31:20,700 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:31:20,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:31:20,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 03:31:20,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-09-25 03:31:20,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-25 03:31:20,702 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-09-25 03:31:20,703 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 03:31:20,703 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 03:31:20,703 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-09-25 03:31:20,703 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-09-25 03:31:20,703 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-09-25 03:31:20,704 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-09-25 03:31:20,704 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-09-25 03:31:20,705 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-09-25 03:31:20,705 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-09-25 03:31:20,705 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-09-25 03:31:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-09-25 03:31:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:31:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:31:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:31:25,670 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:31:25,671 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 03:31:25,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:31:25 BoogieIcfgContainer [2020-09-25 03:31:25,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:31:25,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:31:25,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:31:25,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:31:25,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:31:17" (1/3) ... [2020-09-25 03:31:25,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72ff23e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:31:25, skipping insertion in model container [2020-09-25 03:31:25,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:31:20" (2/3) ... [2020-09-25 03:31:25,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72ff23e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:31:25, skipping insertion in model container [2020-09-25 03:31:25,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:31:25" (3/3) ... [2020-09-25 03:31:25,702 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2020-09-25 03:31:25,713 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:31:25,731 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:31:25,751 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:31:25,792 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:31:25,792 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:31:25,792 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:31:25,792 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:31:25,793 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:31:25,793 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:31:25,793 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:31:25,793 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:31:25,853 INFO L276 IsEmpty]: Start isEmpty. Operand 3444 states. [2020-09-25 03:31:25,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1419 [2020-09-25 03:31:25,967 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:31:25,970 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:31:25,971 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:31:25,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:31:25,979 INFO L82 PathProgramCache]: Analyzing trace with hash 542613819, now seen corresponding path program 1 times [2020-09-25 03:31:25,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:31:25,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [693016341] [2020-09-25 03:31:25,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:31:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:31:29,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:31:31,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:31:32,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:31:33,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:31:34,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:31:34,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1425 [2020-09-25 03:31:34,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:31:34,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5662 [2020-09-25 03:31:34,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:31:34,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:31:34,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 437 [2020-09-25 03:31:34,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 315 [2020-09-25 03:31:34,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 03:31:36,127 WARN L193 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 397 [2020-09-25 03:31:36,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:31:36,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:31:36,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:31:36,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:31:36,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-09-25 03:31:36,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:31:36,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 03:31:36,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:31:36,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:31:36,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:31:36,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:31:36,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:31:38,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:31:38,216 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [693016341] [2020-09-25 03:31:38,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:31:38,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 03:31:38,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392740837] [2020-09-25 03:31:38,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 03:31:38,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:31:38,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 03:31:38,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:31:38,249 INFO L87 Difference]: Start difference. First operand 3444 states. Second operand 5 states. [2020-09-25 03:32:05,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:32:05,069 INFO L93 Difference]: Finished difference Result 9329 states and 12759 transitions. [2020-09-25 03:32:05,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 03:32:05,073 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1418 [2020-09-25 03:32:05,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:32:05,130 INFO L225 Difference]: With dead ends: 9329 [2020-09-25 03:32:05,131 INFO L226 Difference]: Without dead ends: 5915 [2020-09-25 03:32:05,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 03:32:05,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5915 states. [2020-09-25 03:32:05,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5915 to 5913. [2020-09-25 03:32:05,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5913 states. [2020-09-25 03:32:05,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5913 states to 5913 states and 7747 transitions. [2020-09-25 03:32:05,442 INFO L78 Accepts]: Start accepts. Automaton has 5913 states and 7747 transitions. Word has length 1418 [2020-09-25 03:32:05,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:32:05,445 INFO L479 AbstractCegarLoop]: Abstraction has 5913 states and 7747 transitions. [2020-09-25 03:32:05,445 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 03:32:05,445 INFO L276 IsEmpty]: Start isEmpty. Operand 5913 states and 7747 transitions. [2020-09-25 03:32:05,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1421 [2020-09-25 03:32:05,689 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:32:05,690 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:32:05,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:32:05,691 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:32:05,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:32:05,692 INFO L82 PathProgramCache]: Analyzing trace with hash 124334270, now seen corresponding path program 1 times [2020-09-25 03:32:05,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:32:05,693 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1246388809] [2020-09-25 03:32:05,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:32:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:32:06,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:32:07,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:32:08,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:32:08,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:32:09,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:32:09,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:32:11,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:32:11,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1427 [2020-09-25 03:32:11,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 03:32:11,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-25 03:32:11,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:32:11,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:32:11,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 439 [2020-09-25 03:32:11,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 322 [2020-09-25 03:32:11,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2