/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:08:45,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:08:45,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:08:45,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:08:45,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:08:45,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:08:45,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:08:45,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:08:45,668 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:08:45,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:08:45,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:08:45,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:08:45,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:08:45,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:08:45,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:08:45,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:08:45,676 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:08:45,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:08:45,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:08:45,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:08:45,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:08:45,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:08:45,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:08:45,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:08:45,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:08:45,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:08:45,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:08:45,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:08:45,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:08:45,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:08:45,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:08:45,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:08:45,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:08:45,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:08:45,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:08:45,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:08:45,700 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:08:45,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:08:45,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:08:45,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:08:45,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:08:45,703 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 05:08:45,729 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:08:45,730 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:08:45,731 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:08:45,731 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:08:45,732 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:08:45,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:08:45,732 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:08:45,732 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:08:45,732 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:08:45,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:08:45,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:08:45,733 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:08:45,733 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:08:45,734 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:08:45,734 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:08:45,734 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:08:45,734 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:08:45,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:08:45,735 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:08:45,735 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:08:45,735 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:08:45,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:08:45,736 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:08:45,736 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:08:45,736 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:08:45,736 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:08:45,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:08:45,737 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:08:45,737 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:08:45,737 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:08:46,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:08:46,267 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:08:46,274 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:08:46,277 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:08:46,278 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:08:46,279 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product38.cil.c [2020-09-25 05:08:46,375 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/060f75e49/e0d8005220844afa877095ceceeca6df/FLAG4f90c3289 [2020-09-25 05:08:47,041 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:08:47,042 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product38.cil.c [2020-09-25 05:08:47,057 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/060f75e49/e0d8005220844afa877095ceceeca6df/FLAG4f90c3289 [2020-09-25 05:08:47,282 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/060f75e49/e0d8005220844afa877095ceceeca6df [2020-09-25 05:08:47,297 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:08:47,303 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:08:47,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:08:47,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:08:47,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:08:47,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:08:47" (1/1) ... [2020-09-25 05:08:47,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:08:47, skipping insertion in model container [2020-09-25 05:08:47,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:08:47" (1/1) ... [2020-09-25 05:08:47,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:08:47,378 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:08:47,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:08:47,928 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:08:48,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:08:48,063 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:08:48,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:08:48 WrapperNode [2020-09-25 05:08:48,064 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:08:48,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:08:48,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:08:48,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:08:48,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:08:48" (1/1) ... [2020-09-25 05:08:48,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:08:48" (1/1) ... [2020-09-25 05:08:48,103 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:08:48" (1/1) ... [2020-09-25 05:08:48,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:08:48" (1/1) ... [2020-09-25 05:08:48,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:08:48" (1/1) ... [2020-09-25 05:08:48,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:08:48" (1/1) ... [2020-09-25 05:08:48,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:08:48" (1/1) ... [2020-09-25 05:08:48,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:08:48,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:08:48,163 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:08:48,163 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:08:48,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:08:48" (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 05:08:48,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:08:48,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:08:48,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 05:08:48,252 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 05:08:48,252 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 05:08:48,252 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 05:08:48,253 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 05:08:48,253 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:08:48,253 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 05:08:48,253 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 05:08:48,254 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 05:08:48,254 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 05:08:48,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 05:08:48,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 05:08:48,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 05:08:48,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 05:08:48,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 05:08:48,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 05:08:48,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 05:08:48,255 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 05:08:48,255 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 05:08:48,256 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 05:08:48,256 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 05:08:48,256 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 05:08:48,256 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 05:08:48,256 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 05:08:48,257 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 05:08:48,257 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 05:08:48,257 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 05:08:48,257 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 05:08:48,257 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 05:08:48,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 05:08:48,258 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 05:08:48,258 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 05:08:48,258 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 05:08:48,258 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 05:08:48,258 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 05:08:48,258 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 05:08:48,259 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 05:08:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:08:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:08:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 05:08:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 05:08:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 05:08:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 05:08:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 05:08:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 05:08:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 05:08:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 05:08:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 05:08:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 05:08:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 05:08:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 05:08:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 05:08:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:08:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 05:08:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 05:08:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 05:08:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 05:08:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 05:08:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 05:08:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:08:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:08:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 05:08:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:08:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:08:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:08:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:08:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 05:08:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:08:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 05:08:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 05:08:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:08:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 05:08:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 05:08:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:08:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 05:08:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 05:08:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 05:08:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 05:08:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 05:08:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 05:08:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 05:08:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 05:08:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 05:08:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 05:08:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 05:08:48,267 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 05:08:48,267 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 05:08:48,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:08:48,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:08:48,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:08:49,570 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:08:49,570 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 05:08:49,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:08:49 BoogieIcfgContainer [2020-09-25 05:08:49,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:08:49,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:08:49,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:08:49,589 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:08:49,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:08:47" (1/3) ... [2020-09-25 05:08:49,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@beff252 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:08:49, skipping insertion in model container [2020-09-25 05:08:49,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:08:48" (2/3) ... [2020-09-25 05:08:49,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@beff252 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:08:49, skipping insertion in model container [2020-09-25 05:08:49,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:08:49" (3/3) ... [2020-09-25 05:08:49,596 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product38.cil.c [2020-09-25 05:08:49,611 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:08:49,627 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:08:49,653 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:08:49,695 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:08:49,695 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:08:49,695 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:08:49,696 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:08:49,696 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:08:49,696 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:08:49,696 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:08:49,697 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:08:49,739 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states. [2020-09-25 05:08:49,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 05:08:49,775 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:08:49,777 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 05:08:49,778 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:08:49,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:08:49,787 INFO L82 PathProgramCache]: Analyzing trace with hash 2128738986, now seen corresponding path program 1 times [2020-09-25 05:08:49,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:08:49,803 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1854218833] [2020-09-25 05:08:49,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:08:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:08:50,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:08:50,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:08:51,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:08:52,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:08:54,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:08:55,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:08:55,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 05:08:55,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:08:55,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 05:08:55,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:08:55,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:08:55,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:08:55,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 05:08:55,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:08:55,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 05:08:55,773 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:08:55,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:08:55,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:08:55,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:08:55,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:08:55,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:08:55,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:08:55,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-09-25 05:08:55,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:08:55,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:08:55,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:08:55,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:08:55,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:08:55,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:08:56,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:08:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:08:56,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:08:56,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:08:56,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:08:56,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:08:56,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:08:56,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:08:56,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:08:56,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:08:56,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:08:56,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:08:56,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:08:56,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:08:56,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:08:56,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:08:56,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:08:56,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:08:56,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:08:56,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:08:56,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:08:56,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:08:56,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:08:56,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:08:56,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:08:56,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:08:56,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:08:56,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:08:56,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:08:56,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:08:56,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:08:56,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:08:56,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:08:56,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:08:56,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:08:56,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:08:56,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:08:56,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:08:56,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:08:56,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:08:56,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:08:56,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:08:56,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:08:56,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:08:56,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:08:56,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:08:56,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:08:56,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:08:56,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:08:56,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:08:56,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:08:56,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:08:56,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 05:08:56,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:08:56,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:08:56,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:08:56,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:08:56,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:08:56,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:08:56,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:08:56,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:08:56,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:08:56,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:08:56,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:08:56,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:08:56,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 05:08:56,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:08:56,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:08:56,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:08:56,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:08:56,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:08:56,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:08:56,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:08:56,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:08:56,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:08:56,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:08:56,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:08:56,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:08:56,272 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 05:08:56,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1854218833] [2020-09-25 05:08:56,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:08:56,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:08:56,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824417061] [2020-09-25 05:08:56,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:08:56,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:08:56,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:08:56,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:08:56,322 INFO L87 Difference]: Start difference. First operand 305 states. Second operand 3 states. [2020-09-25 05:08:58,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:08:58,207 INFO L93 Difference]: Finished difference Result 476 states and 568 transitions. [2020-09-25 05:08:58,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:08:58,210 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 05:08:58,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:08:58,241 INFO L225 Difference]: With dead ends: 476 [2020-09-25 05:08:58,241 INFO L226 Difference]: Without dead ends: 296 [2020-09-25 05:08:58,249 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:08:58,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-09-25 05:08:58,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 254. [2020-09-25 05:08:58,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-09-25 05:08:58,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 276 transitions. [2020-09-25 05:08:58,406 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 276 transitions. Word has length 142 [2020-09-25 05:08:58,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:08:58,407 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 276 transitions. [2020-09-25 05:08:58,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:08:58,407 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 276 transitions. [2020-09-25 05:08:58,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 05:08:58,434 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:08:58,434 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] [2020-09-25 05:08:58,434 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:08:58,438 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:08:58,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:08:58,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1334241536, now seen corresponding path program 1 times [2020-09-25 05:08:58,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:08:58,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1585289082] [2020-09-25 05:08:58,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:08:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:08:58,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:08:58,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:00,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:01,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:02,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:03,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:03,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 05:09:03,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:09:03,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-09-25 05:09:03,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:03,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:03,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:09:03,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 05:09:03,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:09:03,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:03,895 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:09:03,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:09:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:03,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:04,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:04,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:09:04,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:04,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 05:09:04,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:04,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:04,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:04,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:04,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:04,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:04,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:09:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:04,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:04,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:04,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:04,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:04,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:04,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:04,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:04,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:04,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:04,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:04,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:04,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:09:04,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:04,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:04,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:04,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:04,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:04,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:09:04,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:04,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:04,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:04,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:04,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:04,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:04,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:09:04,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:04,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:04,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:04,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:04,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:04,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:09:04,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:04,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:04,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:04,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:04,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:04,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:04,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:09:04,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:04,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:04,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:04,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:04,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:04,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:04,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:04,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:04,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:04,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:04,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:04,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:04,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 05:09:04,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:04,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:04,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:04,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:04,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:04,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:04,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:04,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:04,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:04,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:09:04,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:04,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:04,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:09:04,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:04,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:04,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:04,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:04,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:04,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:04,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:04,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:04,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:04,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:09:04,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:04,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:04,147 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 05:09:04,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1585289082] [2020-09-25 05:09:04,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:09:04,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:09:04,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674536071] [2020-09-25 05:09:04,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:09:04,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:09:04,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:09:04,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:09:04,156 INFO L87 Difference]: Start difference. First operand 254 states and 276 transitions. Second operand 4 states. [2020-09-25 05:09:04,834 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:09:05,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:09:05,723 INFO L93 Difference]: Finished difference Result 389 states and 439 transitions. [2020-09-25 05:09:05,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:09:05,730 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 05:09:05,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:09:05,734 INFO L225 Difference]: With dead ends: 389 [2020-09-25 05:09:05,734 INFO L226 Difference]: Without dead ends: 279 [2020-09-25 05:09:05,736 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:09:05,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-09-25 05:09:05,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 244. [2020-09-25 05:09:05,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-09-25 05:09:05,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 263 transitions. [2020-09-25 05:09:05,808 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 263 transitions. Word has length 143 [2020-09-25 05:09:05,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:09:05,810 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 263 transitions. [2020-09-25 05:09:05,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:09:05,810 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 263 transitions. [2020-09-25 05:09:05,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 05:09:05,816 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:09:05,817 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] [2020-09-25 05:09:05,817 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:09:05,817 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:09:05,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:09:05,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1890436660, now seen corresponding path program 1 times [2020-09-25 05:09:05,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:09:05,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1077687785] [2020-09-25 05:09:05,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:09:05,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:05,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:06,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:06,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:07,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:10,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:10,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 05:09:10,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:09:10,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 05:09:10,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:10,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:10,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:09:10,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 05:09:10,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:09:10,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:09:11,218 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:09:11,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:09:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:11,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:11,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:11,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:09:11,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:11,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-25 05:09:11,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:11,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:11,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:11,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:11,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:11,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:09:11,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:09:11,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:11,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:11,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:11,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:11,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:11,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:11,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:11,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:11,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:11,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:11,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:11,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:09:11,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:09:11,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:11,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:11,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:11,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:11,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:11,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:11,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:11,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:11,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:11,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:11,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:11,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:09:11,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:09:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:11,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:11,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:11,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:11,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:11,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:09:11,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:11,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:11,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:11,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:11,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:11,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:09:11,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:09:11,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:11,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:11,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:11,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:11,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:11,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:11,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:11,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:11,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:11,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:11,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:11,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:09:11,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 05:09:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:11,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:11,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:11,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:09:11,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:11,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:09:11,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:11,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:11,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:09:11,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:11,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:09:11,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:09:11,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 05:09:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:11,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:11,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:11,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:11,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:11,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:09:11,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:11,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:11,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:11,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:09:11,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:11,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:09:11,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 05:09:11,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:11,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:11,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:11,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:11,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:11,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:11,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:11,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:11,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:11,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:09:11,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:11,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:09:11,619 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 05:09:11,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1077687785] [2020-09-25 05:09:11,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:09:11,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:09:11,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462119349] [2020-09-25 05:09:11,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:09:11,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:09:11,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:09:11,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:09:11,625 INFO L87 Difference]: Start difference. First operand 244 states and 263 transitions. Second operand 5 states. [2020-09-25 05:09:12,310 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:09:13,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:09:13,301 INFO L93 Difference]: Finished difference Result 435 states and 501 transitions. [2020-09-25 05:09:13,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:09:13,302 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 05:09:13,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:09:13,307 INFO L225 Difference]: With dead ends: 435 [2020-09-25 05:09:13,307 INFO L226 Difference]: Without dead ends: 301 [2020-09-25 05:09:13,309 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:09:13,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-09-25 05:09:13,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 244. [2020-09-25 05:09:13,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-09-25 05:09:13,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 262 transitions. [2020-09-25 05:09:13,378 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 262 transitions. Word has length 156 [2020-09-25 05:09:13,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:09:13,381 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 262 transitions. [2020-09-25 05:09:13,381 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:09:13,381 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 262 transitions. [2020-09-25 05:09:13,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-25 05:09:13,388 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:09:13,388 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:09:13,388 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:09:13,388 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:09:13,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:09:13,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1501938266, now seen corresponding path program 1 times [2020-09-25 05:09:13,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:09:13,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [92634731] [2020-09-25 05:09:13,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:09:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:13,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:13,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:13,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:15,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:16,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:17,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:17,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:18,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:18,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 05:09:18,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 05:09:18,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 05:09:18,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:18,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:18,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:09:18,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-09-25 05:09:18,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:09:18,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:18,750 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:09:18,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:09:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:18,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:18,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:18,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:09:18,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:18,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 05:09:18,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:18,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:18,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:18,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:18,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:18,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:18,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:09:18,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:18,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:18,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:18,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:18,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:18,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:18,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:18,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:18,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:18,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:18,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:18,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:18,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:09:18,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:18,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:18,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:18,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:18,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:18,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:18,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:18,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:18,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:18,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:18,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:18,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:18,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:09:18,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:18,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:18,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:18,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:18,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:18,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:09:18,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:18,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:18,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:18,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:18,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:18,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:18,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:09:18,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:18,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:18,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:18,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:18,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:18,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:09:18,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:18,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:18,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:18,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:18,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:18,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:18,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 05:09:18,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:18,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:18,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:18,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:09:18,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:18,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:18,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:18,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:18,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:18,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:18,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:18,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:18,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:09:18,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:18,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:18,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:18,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 05:09:18,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:18,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 05:09:18,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:18,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:18,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:09:18,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 05:09:18,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:09:18,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:18,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:09:18,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:18,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:18,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:18,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:09:18,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:18,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:09:18,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:18,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:18,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:09:18,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 05:09:18,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 05:09:18,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:19,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:09:19,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:19,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:19,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:19,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:19,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:19,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:09:19,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:19,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:19,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:09:19,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:19,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:09:19,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:19,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 05:09:19,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:19,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:19,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:19,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:19,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:19,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:19,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:19,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:19,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:19,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:09:19,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:19,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:19,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 05:09:19,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:19,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:19,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:19,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:19,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:19,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:19,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:19,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:19,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:19,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:09:19,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:19,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:19,066 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 05:09:19,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [92634731] [2020-09-25 05:09:19,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:09:19,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 05:09:19,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301113305] [2020-09-25 05:09:19,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:09:19,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:09:19,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:09:19,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:09:19,069 INFO L87 Difference]: Start difference. First operand 244 states and 262 transitions. Second operand 7 states. [2020-09-25 05:09:19,563 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:09:21,199 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:09:22,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:09:22,209 INFO L93 Difference]: Finished difference Result 615 states and 731 transitions. [2020-09-25 05:09:22,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 05:09:22,209 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 169 [2020-09-25 05:09:22,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:09:22,216 INFO L225 Difference]: With dead ends: 615 [2020-09-25 05:09:22,216 INFO L226 Difference]: Without dead ends: 481 [2020-09-25 05:09:22,218 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-25 05:09:22,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-09-25 05:09:22,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 354. [2020-09-25 05:09:22,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2020-09-25 05:09:22,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 381 transitions. [2020-09-25 05:09:22,272 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 381 transitions. Word has length 169 [2020-09-25 05:09:22,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:09:22,272 INFO L479 AbstractCegarLoop]: Abstraction has 354 states and 381 transitions. [2020-09-25 05:09:22,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:09:22,273 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 381 transitions. [2020-09-25 05:09:22,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-25 05:09:22,275 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:09:22,275 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:09:22,276 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:09:22,276 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:09:22,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:09:22,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1109115497, now seen corresponding path program 1 times [2020-09-25 05:09:22,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:09:22,277 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1093744824] [2020-09-25 05:09:22,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:09:22,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:22,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:22,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:24,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:25,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:25,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:25,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:27,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:27,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-09-25 05:09:27,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:09:27,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-25 05:09:27,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:27,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:27,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:09:27,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-09-25 05:09:27,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 05:09:27,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:27,688 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:09:27,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:09:27,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:27,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:27,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:27,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:09:27,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:27,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 05:09:27,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:27,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:27,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:27,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:27,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:27,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:27,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:09:27,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:27,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:27,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:27,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:27,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:27,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:09:27,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:27,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:27,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:27,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:27,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:27,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:27,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:09:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:27,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:27,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:27,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:27,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:27,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:09:27,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:27,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:27,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:27,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:27,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:27,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:09:27,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:09:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:27,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:27,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:27,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:27,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:27,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:09:27,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:27,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:27,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:27,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:27,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:27,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:09:27,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:09:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:27,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:27,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:27,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:27,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:27,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:09:27,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:27,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:27,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:27,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:27,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:27,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:09:27,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 05:09:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:27,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:27,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:27,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:09:27,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:27,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:27,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:27,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:27,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:27,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:27,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:27,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:09:27,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:09:27,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:27,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:27,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:27,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:27,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:28,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:28,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 05:09:28,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:09:28,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1056 [2020-09-25 05:09:28,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:28,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:28,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:09:28,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:28,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:09:28,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:28,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:09:28,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:28,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:28,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:28,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:29,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:29,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 05:09:29,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:09:29,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 522 [2020-09-25 05:09:29,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:29,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:29,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:09:29,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:29,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:09:29,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:29,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:09:29,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:29,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:29,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:29,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:29,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 05:09:29,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:09:29,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 05:09:29,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:29,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:29,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:09:29,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:29,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 05:09:29,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:29,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:09:29,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:29,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:29,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:29,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:09:29,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:29,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:09:29,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:29,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:29,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:29,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:29,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:29,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:29,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 05:09:29,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:29,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:29,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:29,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:29,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:29,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:09:29,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:29,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:29,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:09:29,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:29,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:09:29,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:29,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 05:09:29,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:29,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:29,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:29,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:29,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:29,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:09:29,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:29,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:29,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:09:29,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:29,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:09:29,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:29,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 05:09:29,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:29,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:29,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:29,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:29,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:29,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:09:29,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:29,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:29,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:09:29,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:29,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:09:29,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:29,758 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 05:09:29,759 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1093744824] [2020-09-25 05:09:29,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:09:29,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 05:09:29,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684287043] [2020-09-25 05:09:29,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 05:09:29,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:09:29,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 05:09:29,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:09:29,762 INFO L87 Difference]: Start difference. First operand 354 states and 381 transitions. Second operand 10 states. [2020-09-25 05:09:30,367 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:09:31,929 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189