/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=0.8 --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_spec5_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:39:10,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:39:10,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:39:10,277 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:39:10,277 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:39:10,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:39:10,280 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:39:10,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:39:10,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:39:10,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:39:10,286 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:39:10,288 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:39:10,288 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:39:10,289 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:39:10,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:39:10,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:39:10,293 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:39:10,294 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:39:10,296 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:39:10,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:39:10,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:39:10,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:39:10,303 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:39:10,304 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:39:10,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:39:10,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:39:10,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:39:10,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:39:10,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:39:10,310 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:39:10,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:39:10,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:39:10,312 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:39:10,313 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:39:10,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:39:10,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:39:10,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:39:10,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:39:10,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:39:10,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:39:10,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:39:10,321 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 07:39:10,349 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:39:10,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:39:10,351 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:39:10,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:39:10,351 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:39:10,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:39:10,352 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:39:10,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:39:10,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:39:10,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:39:10,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:39:10,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:39:10,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:39:10,353 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:39:10,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:39:10,353 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:39:10,354 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:39:10,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:39:10,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:39:10,354 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:39:10,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:39:10,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:39:10,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:39:10,355 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:39:10,355 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:39:10,356 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:39:10,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:39:10,356 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:39:10,356 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:39:10,356 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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;log-additional-information=true; [2020-09-25 07:39:10,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:39:10,864 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:39:10,869 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:39:10,871 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:39:10,873 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:39:10,874 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product28.cil.c [2020-09-25 07:39:10,965 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c3875a5fe/0bfffa0433c045fcbdacb4eb0da2ee85/FLAGadecce57c [2020-09-25 07:39:11,573 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:39:11,574 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product28.cil.c [2020-09-25 07:39:11,590 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c3875a5fe/0bfffa0433c045fcbdacb4eb0da2ee85/FLAGadecce57c [2020-09-25 07:39:11,847 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c3875a5fe/0bfffa0433c045fcbdacb4eb0da2ee85 [2020-09-25 07:39:11,859 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:39:11,864 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:39:11,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:39:11,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:39:11,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:39:11,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:39:11" (1/1) ... [2020-09-25 07:39:11,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:11, skipping insertion in model container [2020-09-25 07:39:11,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:39:11" (1/1) ... [2020-09-25 07:39:11,885 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:39:11,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:39:12,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:39:12,330 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:39:12,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:39:12,563 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:39:12,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:12 WrapperNode [2020-09-25 07:39:12,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:39:12,565 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:39:12,565 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:39:12,565 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:39:12,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:12" (1/1) ... [2020-09-25 07:39:12,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:12" (1/1) ... [2020-09-25 07:39:12,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:12" (1/1) ... [2020-09-25 07:39:12,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:12" (1/1) ... [2020-09-25 07:39:12,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:12" (1/1) ... [2020-09-25 07:39:12,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:12" (1/1) ... [2020-09-25 07:39:12,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:12" (1/1) ... [2020-09-25 07:39:12,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:39:12,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:39:12,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:39:12,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:39:12,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:12" (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 07:39:12,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:39:12,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:39:12,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:39:12,743 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:39:12,743 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:39:12,743 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:39:12,743 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:39:12,744 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:39:12,744 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:39:12,744 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 07:39:12,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 07:39:12,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 07:39:12,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 07:39:12,745 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:39:12,745 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:39:12,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:39:12,746 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:39:12,746 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:39:12,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:39:12,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:39:12,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:39:12,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:39:12,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:39:12,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:39:12,747 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:39:12,747 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:39:12,748 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:39:12,748 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:39:12,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:39:12,748 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:39:12,748 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:39:12,749 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:39:12,749 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 07:39:12,749 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:39:12,749 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:39:12,749 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:39:12,749 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:39:12,749 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:39:12,750 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 07:39:12,750 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 07:39:12,750 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 07:39:12,750 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:39:12,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:39:12,751 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:39:12,751 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:39:12,751 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:39:12,751 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:39:12,751 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:39:12,751 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:39:12,752 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:39:12,752 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:39:12,752 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 07:39:12,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:39:12,752 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:39:12,752 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:39:12,753 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 07:39:12,753 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 07:39:12,753 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 07:39:12,753 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:39:12,753 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:39:12,753 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:39:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:39:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:39:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:39:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:39:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:39:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:39:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:39:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:39:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:39:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:39:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:39:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:39:12,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:39:12,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:39:12,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:39:12,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:39:12,756 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:39:12,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:39:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:39:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:39:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:39:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:39:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:39:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:39:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:39:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:39:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:39:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 07:39:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 07:39:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:39:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:39:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 07:39:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 07:39:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:39:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:39:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:39:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:39:13,896 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:39:13,896 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:39:13,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:39:13 BoogieIcfgContainer [2020-09-25 07:39:13,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:39:13,906 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:39:13,906 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:39:13,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:39:13,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:39:11" (1/3) ... [2020-09-25 07:39:13,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38093cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:39:13, skipping insertion in model container [2020-09-25 07:39:13,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:12" (2/3) ... [2020-09-25 07:39:13,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38093cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:39:13, skipping insertion in model container [2020-09-25 07:39:13,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:39:13" (3/3) ... [2020-09-25 07:39:13,914 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product28.cil.c [2020-09-25 07:39:13,927 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:39:13,940 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:39:13,965 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:39:14,001 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:39:14,001 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:39:14,002 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:39:14,002 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:39:14,002 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:39:14,002 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:39:14,002 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:39:14,003 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:39:14,034 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-25 07:39:14,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 07:39:14,054 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:39:14,056 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:39:14,056 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:39:14,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:39:14,066 INFO L82 PathProgramCache]: Analyzing trace with hash 758256714, now seen corresponding path program 1 times [2020-09-25 07:39:14,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:39:14,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853304039] [2020-09-25 07:39:14,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:39:14,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:14,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:14,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:16,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:16,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:19,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:19,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:19,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 07:39:19,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:39:19,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 07:39:19,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:19,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:19,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:19,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 07:39:19,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:19,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-25 07:39:20,091 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:39:20,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:39:20,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:20,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:20,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:20,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:39:20,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:20,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-25 07:39:20,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:20,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:20,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:20,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:20,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:20,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:20,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:39:20,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:20,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:20,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:20,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:20,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:20,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:39:20,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:20,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:20,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:20,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:20,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:20,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:39:20,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:39:20,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:20,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:20,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:20,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:20,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:20,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:39:20,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:20,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:20,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:20,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:20,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:20,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:20,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:39:20,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:20,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:20,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:20,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:20,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:20,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:39:20,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:20,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:20,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:20,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:20,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:20,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:39:20,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:39:20,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:20,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:20,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:20,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:20,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:20,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:20,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:20,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:20,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:20,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:20,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:20,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:39:20,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:39:20,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:20,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:20,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:20,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:39:20,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:20,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:20,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:20,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:20,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:20,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:20,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:20,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:39:20,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 07:39:20,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:20,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:20,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:20,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:39:20,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:20,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:39:20,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:20,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:20,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:20,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:39:20,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:20,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:39:20,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:39:20,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:20,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:20,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:20,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:20,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:20,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:39:20,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:20,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:20,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:20,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:20,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:20,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:20,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 07:39:20,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:20,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:20,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:20,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:20,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:20,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:20,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:20,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:20,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:20,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:39:20,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:20,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:20,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 07:39:20,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:20,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:20,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:20,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:20,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:20,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:20,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:20,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:20,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:20,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:39:20,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:20,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:39:20,546 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 07:39:20,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853304039] [2020-09-25 07:39:20,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:39:20,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:39:20,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742521136] [2020-09-25 07:39:20,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:39:20,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:39:20,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:39:20,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:39:20,592 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 4 states. [2020-09-25 07:39:21,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:39:21,951 INFO L93 Difference]: Finished difference Result 456 states and 539 transitions. [2020-09-25 07:39:21,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:39:21,953 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 07:39:21,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:39:21,983 INFO L225 Difference]: With dead ends: 456 [2020-09-25 07:39:21,984 INFO L226 Difference]: Without dead ends: 294 [2020-09-25 07:39:21,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:39:22,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-09-25 07:39:22,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 247. [2020-09-25 07:39:22,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-09-25 07:39:22,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 268 transitions. [2020-09-25 07:39:22,106 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 268 transitions. Word has length 160 [2020-09-25 07:39:22,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:39:22,107 INFO L479 AbstractCegarLoop]: Abstraction has 247 states and 268 transitions. [2020-09-25 07:39:22,107 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:39:22,107 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 268 transitions. [2020-09-25 07:39:22,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 07:39:22,112 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:39:22,112 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:39:22,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:39:22,113 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:39:22,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:39:22,113 INFO L82 PathProgramCache]: Analyzing trace with hash -550615221, now seen corresponding path program 1 times [2020-09-25 07:39:22,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:39:22,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [150013706] [2020-09-25 07:39:22,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:39:22,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:22,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:22,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:23,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:24,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:25,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:27,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:27,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 07:39:27,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:39:27,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 07:39:27,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:27,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:27,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:39:27,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 07:39:27,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:39:27,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:27,523 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:39:27,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:39:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:27,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:27,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:27,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:39:27,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:27,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 07:39:27,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:27,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:27,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:27,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:27,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:27,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:27,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:39:27,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:27,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:27,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:27,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:27,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:27,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:27,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:27,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:27,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:27,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:27,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:27,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:27,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:39:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:27,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:27,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:27,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:27,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:27,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:39:27,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:27,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:27,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:27,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:27,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:27,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:27,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:39:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:27,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:27,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:27,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:27,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:27,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:27,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:27,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:27,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:27,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:27,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:27,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:27,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:39:27,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:27,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:27,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:27,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:27,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:27,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:39:27,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:27,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:27,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:27,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:27,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:27,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:27,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:39:27,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:27,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:27,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:27,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:39:27,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:27,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:27,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:27,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:27,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:27,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:27,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:27,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:27,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:39:27,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:27,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:27,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:27,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:39:27,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:27,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:27,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:27,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:27,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:27,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:39:27,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:27,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:27,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:39:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:27,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:27,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:27,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:27,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:27,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:39:27,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:27,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:27,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:27,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:27,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:27,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:27,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 07:39:27,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:27,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:27,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:27,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:27,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:27,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:27,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:27,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:27,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:27,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:39:27,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:27,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:27,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 07:39:27,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:27,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:27,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:27,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:27,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:27,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:27,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:27,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:27,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:27,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:39:27,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:27,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:27,760 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 07:39:27,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [150013706] [2020-09-25 07:39:27,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:39:27,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:39:27,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888797485] [2020-09-25 07:39:27,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:39:27,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:39:27,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:39:27,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:39:27,764 INFO L87 Difference]: Start difference. First operand 247 states and 268 transitions. Second operand 5 states. [2020-09-25 07:39:28,423 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:39:29,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:39:29,246 INFO L93 Difference]: Finished difference Result 375 states and 423 transitions. [2020-09-25 07:39:29,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:39:29,247 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 07:39:29,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:39:29,251 INFO L225 Difference]: With dead ends: 375 [2020-09-25 07:39:29,251 INFO L226 Difference]: Without dead ends: 283 [2020-09-25 07:39:29,253 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:39:29,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2020-09-25 07:39:29,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 237. [2020-09-25 07:39:29,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-09-25 07:39:29,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 255 transitions. [2020-09-25 07:39:29,297 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 255 transitions. Word has length 161 [2020-09-25 07:39:29,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:39:29,298 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 255 transitions. [2020-09-25 07:39:29,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:39:29,298 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 255 transitions. [2020-09-25 07:39:29,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 07:39:29,300 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:39:29,301 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:39:29,301 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:39:29,301 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:39:29,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:39:29,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1782587461, now seen corresponding path program 1 times [2020-09-25 07:39:29,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:39:29,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1917075132] [2020-09-25 07:39:29,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:39:29,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:29,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:29,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:29,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:31,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:34,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:34,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-25 07:39:34,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:39:34,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:39:34,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:34,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:34,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:39:34,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 07:39:34,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 07:39:34,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:39:34,684 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:39:34,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:39:34,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:34,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:34,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:34,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:39:34,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:34,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 07:39:34,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:34,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:34,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:34,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:34,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:34,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:34,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:39:34,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:34,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:34,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:34,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:34,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:34,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:39:34,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:34,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:34,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:34,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:34,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:34,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:39:34,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:39:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:34,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:34,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:34,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:34,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:34,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:39:34,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:34,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:34,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:34,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:34,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:34,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:34,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:39:34,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:34,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:34,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:34,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:34,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:34,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:39:34,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:34,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:34,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:34,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:34,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:34,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:34,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:39:34,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:34,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:34,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:34,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:34,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:34,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:39:34,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:34,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:34,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:34,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:34,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:34,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:34,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:39:34,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:34,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:34,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:34,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:39:34,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:34,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:34,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:34,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:34,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:34,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:34,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:34,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:34,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 07:39:34,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:34,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:34,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:34,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:39:34,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:34,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:34,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:34,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:34,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:39:34,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:34,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:39:34,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:34,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 07:39:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:34,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:34,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:34,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:39:34,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:34,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:39:34,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:34,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:34,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:39:34,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:34,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 07:39:34,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:34,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:39:34,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:34,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:34,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:34,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:34,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:34,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:34,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:34,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:34,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:34,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:34,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:34,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:34,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 07:39:34,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:34,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:34,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:34,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:34,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:34,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:34,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:34,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:34,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:34,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:39:34,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:34,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:39:34,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-25 07:39:34,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:34,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:34,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:34,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:34,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:34,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:34,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:34,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:34,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:34,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:39:34,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:34,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:34,941 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 07:39:34,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1917075132] [2020-09-25 07:39:34,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:39:34,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:39:34,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846366921] [2020-09-25 07:39:34,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:39:34,943 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:39:34,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:39:34,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:39:34,944 INFO L87 Difference]: Start difference. First operand 237 states and 255 transitions. Second operand 6 states. [2020-09-25 07:39:35,485 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:39:37,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:39:37,481 INFO L93 Difference]: Finished difference Result 555 states and 645 transitions. [2020-09-25 07:39:37,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:39:37,482 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-25 07:39:37,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:39:37,491 INFO L225 Difference]: With dead ends: 555 [2020-09-25 07:39:37,491 INFO L226 Difference]: Without dead ends: 433 [2020-09-25 07:39:37,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:39:37,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2020-09-25 07:39:37,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 349. [2020-09-25 07:39:37,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2020-09-25 07:39:37,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 386 transitions. [2020-09-25 07:39:37,587 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 386 transitions. Word has length 174 [2020-09-25 07:39:37,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:39:37,588 INFO L479 AbstractCegarLoop]: Abstraction has 349 states and 386 transitions. [2020-09-25 07:39:37,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:39:37,588 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 386 transitions. [2020-09-25 07:39:37,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-25 07:39:37,591 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:39:37,591 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:39:37,591 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:39:37,591 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:39:37,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:39:37,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1899572148, now seen corresponding path program 1 times [2020-09-25 07:39:37,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:39:37,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [523709162] [2020-09-25 07:39:37,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:39:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:37,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:37,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:38,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:40,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:42,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:42,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-25 07:39:42,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:39:42,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 07:39:42,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:42,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:42,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:39:42,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 07:39:42,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 07:39:42,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:39:43,042 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:39:43,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:39:43,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:43,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:43,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:43,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:39:43,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:43,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 07:39:43,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:43,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:43,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:43,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:43,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:43,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:43,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:39:43,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:43,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:43,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:43,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:43,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:43,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:43,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:43,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:43,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:43,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:43,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:43,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:43,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:39:43,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:43,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:43,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:43,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:43,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:43,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:39:43,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:43,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:43,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:43,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:43,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:43,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:43,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:39:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:43,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:43,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:43,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:43,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:43,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:43,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:43,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:43,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:43,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:43,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:43,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:43,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:39:43,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:43,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:43,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:43,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:43,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:43,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:43,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:43,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:43,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:43,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:43,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:43,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:43,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:39:43,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:43,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:43,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:43,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:39:43,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:43,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:43,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:43,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:43,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:43,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:43,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:43,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:43,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 07:39:43,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:43,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:43,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:43,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:39:43,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:43,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:39:43,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:43,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:43,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:39:43,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:43,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:39:43,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:43,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 07:39:43,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:43,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:43,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:43,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:39:43,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:43,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:39:43,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:43,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:43,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:39:43,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:43,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 07:39:43,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:43,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:39:43,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:43,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:43,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:43,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:43,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:43,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:43,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:43,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:43,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:43,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:43,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:43,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:43,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 07:39:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:43,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:43,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:43,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:43,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:43,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:39:43,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:43,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:43,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:39:43,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:43,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:39:43,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:43,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-09-25 07:39:43,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:43,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:43,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:43,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:43,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:43,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:39:43,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:43,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:43,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:39:43,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:43,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:39:43,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:39:43,436 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 07:39:43,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [523709162] [2020-09-25 07:39:43,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:39:43,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 07:39:43,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602400244] [2020-09-25 07:39:43,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:39:43,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:39:43,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:39:43,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:39:43,440 INFO L87 Difference]: Start difference. First operand 349 states and 386 transitions. Second operand 10 states. [2020-09-25 07:39:44,014 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:39:45,097 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:45,427 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 07:39:46,394 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:39:46,716 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-25 07:39:47,061 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 07:39:47,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:39:47,140 INFO L93 Difference]: Finished difference Result 580 states and 688 transitions. [2020-09-25 07:39:47,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 07:39:47,141 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 179 [2020-09-25 07:39:47,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:39:47,144 INFO L225 Difference]: With dead ends: 580 [2020-09-25 07:39:47,144 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 07:39:47,147 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2020-09-25 07:39:47,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 07:39:47,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 07:39:47,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 07:39:47,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 07:39:47,148 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 179 [2020-09-25 07:39:47,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:39:47,149 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 07:39:47,149 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:39:47,149 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 07:39:47,149 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 07:39:47,149 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:39:47,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 07:39:47,367 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:47,533 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:39:47,707 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:47,880 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:48,048 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:39:48,215 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:48,530 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 6 [2020-09-25 07:39:48,690 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:39:48,852 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:49,012 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:49,144 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 6 [2020-09-25 07:39:49,312 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:49,429 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 6 [2020-09-25 07:39:49,759 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 07:39:50,085 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 07:39:50,413 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 07:39:50,728 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 07:39:50,873 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:39:51,022 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:39:51,176 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:51,330 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:51,483 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:51,632 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:39:51,787 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:51,951 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:52,103 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:52,253 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:39:52,406 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:52,511 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 6 [2020-09-25 07:39:52,666 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:52,814 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:39:52,966 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:39:53,120 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:53,268 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:39:53,423 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:53,576 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:53,729 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:53,884 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:54,045 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:54,194 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:39:54,347 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:54,499 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:54,652 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:54,809 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:54,957 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:39:55,236 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 6 [2020-09-25 07:39:55,393 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:55,546 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:55,699 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:55,954 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:56,103 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:39:56,256 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:56,409 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:56,559 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:39:56,713 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:56,885 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:57,041 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:39:57,194 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:57,346 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:57,525 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:57,678 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:57,830 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:57,982 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:39:58,130 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:39:58,519 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 7 [2020-09-25 07:39:58,713 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 23 [2020-09-25 07:39:58,913 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 1 [2020-09-25 07:39:59,154 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 1 [2020-09-25 07:39:59,383 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 23 [2020-09-25 07:39:59,616 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 23 [2020-09-25 07:39:59,803 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 8 [2020-09-25 07:40:00,078 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187