/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:51:00,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:51:00,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:51:01,022 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:51:01,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:51:01,034 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:51:01,036 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:51:01,039 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:51:01,042 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:51:01,044 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:51:01,045 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:51:01,046 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:51:01,046 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:51:01,051 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:51:01,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:51:01,055 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:51:01,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:51:01,059 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:51:01,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:51:01,067 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:51:01,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:51:01,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:51:01,073 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:51:01,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:51:01,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:51:01,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:51:01,079 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:51:01,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:51:01,082 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:51:01,084 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:51:01,084 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:51:01,085 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:51:01,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:51:01,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:51:01,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:51:01,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:51:01,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:51:01,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:51:01,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:51:01,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:51:01,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:51:01,093 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 10:51:01,141 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:51:01,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:51:01,143 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:51:01,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:51:01,144 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:51:01,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:51:01,144 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:51:01,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:51:01,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:51:01,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:51:01,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:51:01,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:51:01,147 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:51:01,147 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:51:01,147 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:51:01,147 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:51:01,148 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:51:01,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:51:01,148 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:51:01,148 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:51:01,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:51:01,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:51:01,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:51:01,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:51:01,149 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:51:01,149 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:51:01,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:51:01,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:51:01,150 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:51:01,150 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 10:51:01,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:51:01,597 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:51:01,602 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:51:01,603 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:51:01,604 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:51:01,605 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product44.cil.c [2020-09-25 10:51:01,693 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bfc8b1c81/b348c37a08764f26b9e330fecdcfd011/FLAGa9ef67f8e [2020-09-25 10:51:02,278 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:51:02,279 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product44.cil.c [2020-09-25 10:51:02,295 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bfc8b1c81/b348c37a08764f26b9e330fecdcfd011/FLAGa9ef67f8e [2020-09-25 10:51:02,565 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bfc8b1c81/b348c37a08764f26b9e330fecdcfd011 [2020-09-25 10:51:02,578 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:51:02,584 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:51:02,585 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:51:02,585 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:51:02,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:51:02,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:51:02" (1/1) ... [2020-09-25 10:51:02,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6cae7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:02, skipping insertion in model container [2020-09-25 10:51:02,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:51:02" (1/1) ... [2020-09-25 10:51:02,607 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:51:02,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:51:03,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:51:03,343 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:51:03,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:51:03,497 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:51:03,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:03 WrapperNode [2020-09-25 10:51:03,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:51:03,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:51:03,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:51:03,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:51:03,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:03" (1/1) ... [2020-09-25 10:51:03,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:03" (1/1) ... [2020-09-25 10:51:03,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:03" (1/1) ... [2020-09-25 10:51:03,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:03" (1/1) ... [2020-09-25 10:51:03,589 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:03" (1/1) ... [2020-09-25 10:51:03,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:03" (1/1) ... [2020-09-25 10:51:03,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:03" (1/1) ... [2020-09-25 10:51:03,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:51:03,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:51:03,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:51:03,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:51:03,624 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:03" (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 10:51:03,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:51:03,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:51:03,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 10:51:03,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 10:51:03,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 10:51:03,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 10:51:03,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 10:51:03,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 10:51:03,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 10:51:03,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 10:51:03,700 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 10:51:03,700 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 10:51:03,700 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 10:51:03,700 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 10:51:03,701 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 10:51:03,702 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 10:51:03,702 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 10:51:03,702 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 10:51:03,702 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 10:51:03,703 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 10:51:03,703 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 10:51:03,703 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 10:51:03,704 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 10:51:03,704 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 10:51:03,704 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 10:51:03,705 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 10:51:03,705 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 10:51:03,705 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 10:51:03,705 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 10:51:03,705 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 10:51:03,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 10:51:03,706 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 10:51:03,706 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 10:51:03,706 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 10:51:03,706 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 10:51:03,706 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 10:51:03,706 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 10:51:03,707 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 10:51:03,707 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 10:51:03,707 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:51:03,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:51:03,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:51:03,707 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 10:51:03,708 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 10:51:03,708 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 10:51:03,708 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 10:51:03,708 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 10:51:03,708 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 10:51:03,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 10:51:03,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 10:51:03,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 10:51:03,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 10:51:03,710 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 10:51:03,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 10:51:03,710 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 10:51:03,710 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 10:51:03,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 10:51:03,710 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 10:51:03,711 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 10:51:03,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 10:51:03,711 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 10:51:03,711 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 10:51:03,711 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 10:51:03,712 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 10:51:03,712 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 10:51:03,712 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 10:51:03,712 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 10:51:03,713 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 10:51:03,713 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 10:51:03,713 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 10:51:03,714 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 10:51:03,715 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 10:51:03,715 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 10:51:03,715 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 10:51:03,716 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 10:51:03,716 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 10:51:03,716 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 10:51:03,716 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 10:51:03,716 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 10:51:03,716 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 10:51:03,717 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 10:51:03,717 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 10:51:03,718 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 10:51:03,718 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 10:51:03,718 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 10:51:03,718 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 10:51:03,718 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 10:51:03,718 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 10:51:03,719 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 10:51:03,719 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 10:51:03,719 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:51:03,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:51:03,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 10:51:03,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:51:04,843 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:51:04,844 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 10:51:04,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:51:04 BoogieIcfgContainer [2020-09-25 10:51:04,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:51:04,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:51:04,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:51:04,866 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:51:04,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:51:02" (1/3) ... [2020-09-25 10:51:04,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@644e675b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:51:04, skipping insertion in model container [2020-09-25 10:51:04,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:51:03" (2/3) ... [2020-09-25 10:51:04,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@644e675b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:51:04, skipping insertion in model container [2020-09-25 10:51:04,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:51:04" (3/3) ... [2020-09-25 10:51:04,872 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product44.cil.c [2020-09-25 10:51:04,886 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:51:04,901 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:51:04,926 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:51:04,969 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:51:04,969 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:51:04,969 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:51:04,969 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:51:04,970 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:51:04,970 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:51:04,970 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:51:04,971 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:51:05,021 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states. [2020-09-25 10:51:05,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 10:51:05,052 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:51:05,054 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] [2020-09-25 10:51:05,055 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:51:05,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:51:05,065 INFO L82 PathProgramCache]: Analyzing trace with hash -382402386, now seen corresponding path program 1 times [2020-09-25 10:51:05,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:51:05,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2057930124] [2020-09-25 10:51:05,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:51:05,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:05,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:05,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:07,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:08,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:09,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:10,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:10,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 10:51:10,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:51:10,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 10:51:10,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:10,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:10,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 10:51:10,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 10:51:10,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 10:51:10,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-25 10:51:11,047 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:51:11,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:51:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:11,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:11,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:11,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:51:11,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:11,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 339 [2020-09-25 10:51:11,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:11,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:11,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:11,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:11,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 10:51:11,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:11,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:51:11,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:11,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:11,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:11,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:51:11,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:11,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:51:11,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:11,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:11,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:11,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:11,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:51:11,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:11,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:51:11,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:11,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:11,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:11,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:51:11,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:11,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:51:11,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:11,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:11,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:11,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:11,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:51:11,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:11,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:51:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:11,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:11,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:11,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:51:11,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:11,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:51:11,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:11,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:11,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:11,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:11,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:51:11,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:51:11,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:51:11,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:11,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:11,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:11,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:51:11,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:11,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:51:11,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:11,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:11,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:11,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:11,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:51:11,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:11,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 10:51:11,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:11,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:11,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:11,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:51:11,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:11,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 10:51:11,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:11,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:11,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:51:11,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:11,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:51:11,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:51:11,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 10:51:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:11,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:11,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:11,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:51:11,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:11,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:51:11,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:11,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:11,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:11,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:51:11,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:11,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:11,837 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 10:51:11,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2057930124] [2020-09-25 10:51:11,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:51:11,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 10:51:11,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705063894] [2020-09-25 10:51:11,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:51:11,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:51:11,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:51:11,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:51:11,884 INFO L87 Difference]: Start difference. First operand 308 states. Second operand 8 states. [2020-09-25 10:51:12,622 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:51:13,644 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:51:14,040 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 10:51:14,436 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:51:14,832 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:51:15,174 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:51:16,101 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:51:16,442 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:51:16,952 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:51:18,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:51:18,290 INFO L93 Difference]: Finished difference Result 652 states and 789 transitions. [2020-09-25 10:51:18,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 10:51:18,292 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 10:51:18,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:51:18,315 INFO L225 Difference]: With dead ends: 652 [2020-09-25 10:51:18,315 INFO L226 Difference]: Without dead ends: 438 [2020-09-25 10:51:18,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 10:51:18,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2020-09-25 10:51:18,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 379. [2020-09-25 10:51:18,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2020-09-25 10:51:18,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 417 transitions. [2020-09-25 10:51:18,469 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 417 transitions. Word has length 142 [2020-09-25 10:51:18,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:51:18,470 INFO L479 AbstractCegarLoop]: Abstraction has 379 states and 417 transitions. [2020-09-25 10:51:18,470 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:51:18,470 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 417 transitions. [2020-09-25 10:51:18,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 10:51:18,475 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:51:18,476 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] [2020-09-25 10:51:18,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:51:18,476 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:51:18,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:51:18,477 INFO L82 PathProgramCache]: Analyzing trace with hash -551525356, now seen corresponding path program 1 times [2020-09-25 10:51:18,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:51:18,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [255995854] [2020-09-25 10:51:18,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:51:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:18,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:18,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:19,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:23,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:23,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 10:51:23,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:51:23,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4928 [2020-09-25 10:51:23,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:23,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:23,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 10:51:23,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 10:51:23,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-25 10:51:23,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:23,878 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:51:23,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:51:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:23,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:24,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:24,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:51:24,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:24,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-09-25 10:51:24,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:24,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:24,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:24,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:24,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 10:51:24,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:24,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:51:24,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:24,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:24,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:24,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:51:24,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:24,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:51:24,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:24,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:24,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:24,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:24,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:51:24,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:24,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:51:24,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:24,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:24,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:24,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:51:24,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:24,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:51:24,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:24,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:24,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:24,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:24,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:51:24,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:24,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:51:24,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:24,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:24,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:24,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:51:24,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:24,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:51:24,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:24,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:24,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:24,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:24,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:51:24,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:24,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:51:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:24,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:24,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:24,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:51:24,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:24,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:51:24,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:24,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:24,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:24,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:24,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:51:24,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:24,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 10:51:24,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:24,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:24,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:24,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:51:24,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:24,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:51:24,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:24,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:24,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:24,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:24,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:51:24,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:24,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 10:51:24,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:24,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:24,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:24,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:51:24,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:24,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:51:24,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:24,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:24,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:24,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:24,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:51:24,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:24,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 10:51:24,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:24,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:24,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:24,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:51:24,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:24,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:51:24,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:24,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:24,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:24,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:24,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:51:24,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:24,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 10:51:24,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:24,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:24,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:24,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:51:24,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:24,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:51:24,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:24,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:24,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:51:24,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:24,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:51:24,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:24,475 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 10:51:24,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [255995854] [2020-09-25 10:51:24,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:51:24,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 10:51:24,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732563547] [2020-09-25 10:51:24,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 10:51:24,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:51:24,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 10:51:24,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 10:51:24,480 INFO L87 Difference]: Start difference. First operand 379 states and 417 transitions. Second operand 10 states. [2020-09-25 10:51:25,010 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:51:26,420 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:51:26,768 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:51:27,102 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:51:27,479 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:51:27,811 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:51:29,379 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:51:29,718 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:51:30,103 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:51:30,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:51:30,703 INFO L93 Difference]: Finished difference Result 1053 states and 1329 transitions. [2020-09-25 10:51:30,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 10:51:30,704 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2020-09-25 10:51:30,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:51:30,714 INFO L225 Difference]: With dead ends: 1053 [2020-09-25 10:51:30,715 INFO L226 Difference]: Without dead ends: 784 [2020-09-25 10:51:30,719 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 10:51:30,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2020-09-25 10:51:30,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 549. [2020-09-25 10:51:30,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 549 states. [2020-09-25 10:51:30,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 633 transitions. [2020-09-25 10:51:30,849 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 633 transitions. Word has length 161 [2020-09-25 10:51:30,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:51:30,850 INFO L479 AbstractCegarLoop]: Abstraction has 549 states and 633 transitions. [2020-09-25 10:51:30,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 10:51:30,850 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 633 transitions. [2020-09-25 10:51:30,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-09-25 10:51:30,856 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:51:30,857 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:51:30,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:51:30,857 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:51:30,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:51:30,858 INFO L82 PathProgramCache]: Analyzing trace with hash 887783661, now seen corresponding path program 1 times [2020-09-25 10:51:30,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:51:30,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [868866876] [2020-09-25 10:51:30,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:51:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:30,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:31,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:31,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:31,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:31,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:32,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:32,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:34,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:35,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:35,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 326 [2020-09-25 10:51:35,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 10:51:35,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 10:51:35,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:35,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:35,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:35,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 10:51:35,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 10:51:35,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:51:36,217 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:51:36,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:51:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:36,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:36,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:36,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:51:36,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:36,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 10:51:36,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:36,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:36,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:36,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:36,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:36,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:36,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:51:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:36,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:36,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:36,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:51:36,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:36,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:51:36,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:36,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:36,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:36,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:36,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:36,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:36,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:51:36,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:36,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:36,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:36,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:51:36,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:36,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:51:36,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:36,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:36,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:36,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:36,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:36,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:36,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:51:36,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:36,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:36,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:36,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:51:36,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:36,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 10:51:36,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:36,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:36,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:36,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:36,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:36,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:36,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:51:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:36,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:36,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:36,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:51:36,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:36,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:51:36,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:36,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:36,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:36,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:36,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:36,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:36,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 10:51:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:36,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:36,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:36,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:51:36,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:36,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:51:36,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:36,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:36,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:36,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:36,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:51:36,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:36,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 10:51:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:36,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:36,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:36,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:51:36,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:36,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:51:36,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:36,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:36,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:36,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:36,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:51:36,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:36,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 10:51:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:36,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:36,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:36,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 10:51:36,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:36,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 10:51:36,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:36,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:36,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:36,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:36,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 10:51:36,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:36,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:51:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:36,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:36,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:36,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 10:51:36,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:36,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:51:36,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:36,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:36,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:36,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:36,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:36,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:36,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:51:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:36,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:36,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:36,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:51:36,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:36,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:51:36,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:36,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:36,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:36,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:36,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:36,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:36,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 10:51:36,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:36,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:36,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:36,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 10:51:36,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:36,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:51:36,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:36,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:36,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:36,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 10:51:36,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:36,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:36,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:51:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:36,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:36,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:36,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 10:51:36,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:36,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:51:36,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:36,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:36,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:36,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:36,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:36,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:36,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:51:36,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:36,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:36,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:36,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:51:36,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:36,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:51:36,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:36,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:36,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:36,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:36,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:36,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:36,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 10:51:36,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:36,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:36,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:36,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:36,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 10:51:36,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:51:36,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 10:51:36,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:36,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:36,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:51:36,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 10:51:36,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:51:36,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:36,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:51:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:36,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:36,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:36,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:51:36,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:36,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 10:51:36,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:36,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:36,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:51:36,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:36,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 10:51:36,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:36,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:51:36,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:36,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:36,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:36,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:51:36,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:36,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:51:36,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:36,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:36,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:36,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:36,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:36,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:36,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 10:51:36,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:36,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:36,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:36,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 10:51:36,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:36,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 10:51:36,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:36,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:36,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:36,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 10:51:36,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:36,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:36,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:51:36,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:36,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:36,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:36,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 10:51:36,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:36,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:51:36,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:36,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:36,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:36,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:36,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:36,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:36,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:51:36,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:36,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:36,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:36,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:51:36,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:36,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:51:36,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:36,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:36,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:36,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:36,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:36,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:36,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 10:51:36,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:36,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:36,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:36,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:51:36,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:36,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:51:36,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:36,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:36,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:36,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:36,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:36,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:36,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2020-09-25 10:51:36,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:36,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:36,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:36,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:51:36,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:36,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:51:36,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:36,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:36,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:36,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:51:36,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:36,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:36,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2020-09-25 10:51:36,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:36,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:36,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:36,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:51:36,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:36,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:51:36,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:36,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:36,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:36,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:51:36,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:36,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:37,126 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-09-25 10:51:37,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [868866876] [2020-09-25 10:51:37,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:51:37,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 10:51:37,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418098776] [2020-09-25 10:51:37,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 10:51:37,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:51:37,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 10:51:37,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-09-25 10:51:37,132 INFO L87 Difference]: Start difference. First operand 549 states and 633 transitions. Second operand 13 states. [2020-09-25 10:51:37,913 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:51:39,204 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:51:39,547 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:51:39,917 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 10:51:40,304 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:51:40,681 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:51:40,988 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:51:42,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:51:42,869 INFO L93 Difference]: Finished difference Result 1468 states and 1946 transitions. [2020-09-25 10:51:42,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 10:51:42,870 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 265 [2020-09-25 10:51:42,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:51:42,885 INFO L225 Difference]: With dead ends: 1468 [2020-09-25 10:51:42,886 INFO L226 Difference]: Without dead ends: 1029 [2020-09-25 10:51:42,888 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=249, Invalid=941, Unknown=0, NotChecked=0, Total=1190 [2020-09-25 10:51:42,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2020-09-25 10:51:43,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 551. [2020-09-25 10:51:43,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 551 states. [2020-09-25 10:51:43,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 621 transitions. [2020-09-25 10:51:43,019 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 621 transitions. Word has length 265 [2020-09-25 10:51:43,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:51:43,021 INFO L479 AbstractCegarLoop]: Abstraction has 551 states and 621 transitions. [2020-09-25 10:51:43,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 10:51:43,021 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 621 transitions. [2020-09-25 10:51:43,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-25 10:51:43,028 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:51:43,028 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:51:43,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:51:43,029 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:51:43,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:51:43,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1226108971, now seen corresponding path program 1 times [2020-09-25 10:51:43,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:51:43,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1237902459] [2020-09-25 10:51:43,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:51:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:43,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:43,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:46,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:48,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:48,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-09-25 10:51:48,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:51:48,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 10:51:48,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:48,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:48,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:51:48,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-09-25 10:51:48,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 10:51:48,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:48,392 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:51:48,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:51:48,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:48,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:48,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:48,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:51:48,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:48,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 10:51:48,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:48,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:48,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:48,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:48,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:48,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:48,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:51:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:48,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:48,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:48,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:51:48,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:48,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:51:48,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:48,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:48,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:48,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:48,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:48,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:48,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:51:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:48,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:48,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:48,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:51:48,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:48,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:51:48,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:48,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:48,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:48,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:48,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:48,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:48,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:51:48,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:48,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:48,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:48,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:51:48,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:48,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:51:48,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:48,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:48,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:48,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:48,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:48,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:48,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:51:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:48,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:48,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:48,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:51:48,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:48,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:51:48,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:48,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:48,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:48,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:48,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:48,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:48,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 10:51:48,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:48,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:48,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:48,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:51:48,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:48,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:51:48,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:48,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:48,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:48,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:48,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 10:51:48,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:48,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 10:51:48,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:48,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:48,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:48,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:51:48,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:48,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:51:48,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:48,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:48,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:48,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:48,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:51:48,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:48,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 10:51:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:48,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:48,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:49,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:49,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 10:51:49,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:51:49,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 464 [2020-09-25 10:51:49,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:49,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:49,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:51:49,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-25 10:51:49,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 10:51:49,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:49,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:51:49,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:49,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:49,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:49,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:49,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:51:49,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:51:49,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-25 10:51:49,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:49,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:49,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:51:49,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:51:49,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:51:49,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:49,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:51:49,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:49,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:49,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:49,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:51:49,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:49,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:51:49,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:49,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:49,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:51:49,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:49,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:51:49,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:49,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 10:51:49,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:49,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:49,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:49,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 10:51:49,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:49,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 10:51:49,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:49,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:49,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 10:51:49,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:49,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 10:51:49,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:49,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:51:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:49,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:49,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:49,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 10:51:49,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:49,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:51:49,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:49,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:49,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:51:49,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:49,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 10:51:49,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:49,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:51:49,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:49,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:49,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:49,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:51:49,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:49,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:51:49,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:49,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:49,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:51:49,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:49,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:51:49,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:51:49,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 10:51:49,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:49,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:49,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:49,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:51:49,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:49,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:51:49,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:49,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:49,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:51:49,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:51:49,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:51:49,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:49,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-25 10:51:49,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:49,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:49,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:49,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:51:49,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:49,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:51:49,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:49,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:49,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:49,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:51:49,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:49,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:49,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-25 10:51:49,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:51:49,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:51:49,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:51:49,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:51:49,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:51:49,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:51:49,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:51:49,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:51:49,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:51:49,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:51:49,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:51:49,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:51:49,858 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 10:51:49,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1237902459] [2020-09-25 10:51:49,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:51:49,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-25 10:51:49,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095227328] [2020-09-25 10:51:49,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-25 10:51:49,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:51:49,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-25 10:51:49,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2020-09-25 10:51:49,863 INFO L87 Difference]: Start difference. First operand 551 states and 621 transitions. Second operand 19 states. [2020-09-25 10:51:50,502 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186