/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 interpolation-heuristic=FIRST --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_spec2_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:43:23,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:43:23,121 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:43:23,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:43:23,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:43:23,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:43:23,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:43:23,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:43:23,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:43:23,185 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:43:23,186 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:43:23,188 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:43:23,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:43:23,191 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:43:23,193 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:43:23,195 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:43:23,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:43:23,199 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:43:23,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:43:23,209 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:43:23,211 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:43:23,213 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:43:23,214 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:43:23,215 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:43:23,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:43:23,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:43:23,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:43:23,235 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:43:23,236 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:43:23,237 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:43:23,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:43:23,242 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:43:23,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:43:23,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:43:23,246 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:43:23,246 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:43:23,248 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:43:23,248 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:43:23,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:43:23,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:43:23,251 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:43:23,252 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 [2020-09-24 15:43:23,294 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:43:23,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:43:23,296 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:43:23,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:43:23,297 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:43:23,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:43:23,298 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:43:23,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:43:23,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:43:23,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:43:23,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:43:23,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:43:23,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:43:23,300 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:43:23,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:43:23,301 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:43:23,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:43:23,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:43:23,301 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:43:23,301 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:43:23,301 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:43:23,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:43:23,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:43:23,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:43:23,302 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:43:23,303 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:43:23,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:43:23,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:43:23,303 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:43:23,303 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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 15:43:23,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:43:23,800 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:43:23,804 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:43:23,806 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:43:23,808 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:43:23,809 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product20.cil.c [2020-09-24 15:43:23,908 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/47d67a2e3/f235bac87ea2458ebe908025de73417a/FLAGafe49a4aa [2020-09-24 15:43:24,582 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:43:24,584 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product20.cil.c [2020-09-24 15:43:24,599 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/47d67a2e3/f235bac87ea2458ebe908025de73417a/FLAGafe49a4aa [2020-09-24 15:43:24,779 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/47d67a2e3/f235bac87ea2458ebe908025de73417a [2020-09-24 15:43:24,791 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:43:24,797 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:43:24,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:43:24,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:43:24,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:43:24,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:43:24" (1/1) ... [2020-09-24 15:43:24,811 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 24.09 03:43:24, skipping insertion in model container [2020-09-24 15:43:24,811 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:43:24" (1/1) ... [2020-09-24 15:43:24,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:43:24,891 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:43:25,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:43:25,373 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:43:25,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:43:25,505 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:43:25,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:43:25 WrapperNode [2020-09-24 15:43:25,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:43:25,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:43:25,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:43:25,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:43:25,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:43:25" (1/1) ... [2020-09-24 15:43:25,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:43:25" (1/1) ... [2020-09-24 15:43:25,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:43:25" (1/1) ... [2020-09-24 15:43:25,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:43:25" (1/1) ... [2020-09-24 15:43:25,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:43:25" (1/1) ... [2020-09-24 15:43:25,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:43:25" (1/1) ... [2020-09-24 15:43:25,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:43:25" (1/1) ... [2020-09-24 15:43:25,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:43:25,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:43:25,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:43:25,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:43:25,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:43:25" (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 [2020-09-24 15:43:25,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:43:25,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:43:25,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 15:43:25,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 15:43:25,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 15:43:25,727 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 15:43:25,727 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 15:43:25,727 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 15:43:25,728 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 15:43:25,728 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 15:43:25,728 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 15:43:25,728 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 15:43:25,728 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 15:43:25,729 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 15:43:25,729 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 15:43:25,729 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 15:43:25,729 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 15:43:25,729 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 15:43:25,730 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 15:43:25,730 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 15:43:25,730 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:43:25,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 15:43:25,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 15:43:25,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 15:43:25,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 15:43:25,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 15:43:25,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 15:43:25,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 15:43:25,732 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 15:43:25,732 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 15:43:25,732 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 15:43:25,732 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 15:43:25,732 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 15:43:25,733 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 15:43:25,733 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 15:43:25,733 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 15:43:25,733 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 15:43:25,733 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 15:43:25,733 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 15:43:25,734 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 15:43:25,734 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:43:25,734 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:43:25,734 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 15:43:25,734 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 15:43:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 15:43:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 15:43:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 15:43:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 15:43:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 15:43:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 15:43:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 15:43:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 15:43:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 15:43:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 15:43:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 15:43:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 15:43:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 15:43:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 15:43:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 15:43:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 15:43:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 15:43:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 15:43:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 15:43:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 15:43:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 15:43:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 15:43:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:43:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 15:43:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 15:43:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 15:43:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 15:43:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 15:43:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 15:43:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 15:43:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 15:43:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 15:43:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 15:43:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 15:43:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 15:43:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 15:43:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 15:43:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 15:43:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 15:43:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 15:43:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 15:43:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 15:43:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 15:43:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 15:43:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 15:43:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 15:43:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 15:43:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:43:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 15:43:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:43:26,917 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:43:26,918 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 15:43:26,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:43:26 BoogieIcfgContainer [2020-09-24 15:43:26,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:43:26,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:43:26,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:43:26,936 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:43:26,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:43:24" (1/3) ... [2020-09-24 15:43:26,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@392fee05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:43:26, skipping insertion in model container [2020-09-24 15:43:26,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:43:25" (2/3) ... [2020-09-24 15:43:26,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@392fee05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:43:26, skipping insertion in model container [2020-09-24 15:43:26,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:43:26" (3/3) ... [2020-09-24 15:43:26,940 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product20.cil.c [2020-09-24 15:43:26,952 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:43:26,963 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:43:26,986 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:43:27,019 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:43:27,020 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:43:27,020 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:43:27,020 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:43:27,020 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:43:27,020 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:43:27,020 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:43:27,021 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:43:27,046 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states. [2020-09-24 15:43:27,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 15:43:27,063 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:43:27,065 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:43:27,065 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:43:27,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:43:27,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1661826490, now seen corresponding path program 1 times [2020-09-24 15:43:27,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:43:27,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1525173144] [2020-09-24 15:43:27,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:43:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:27,470 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:27,470 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:27,470 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:27,471 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:27,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 15:43:27,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:27,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 15:43:27,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:27,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:27,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 15:43:27,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:27,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:43:27,975 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:43:27,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:43:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:28,040 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:28,040 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:28,040 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:28,041 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:28,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:43:28,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:28,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 15:43:28,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:28,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:28,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:28,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:28,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:28,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:43:28,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:28,164 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:28,165 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:28,165 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:28,166 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:28,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:43:28,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:28,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:43:28,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:28,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:28,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:28,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:28,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:28,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:43:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:28,172 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:28,173 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:28,173 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:28,173 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:28,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:43:28,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:28,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:28,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:28,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:28,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:28,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:28,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:28,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:43:28,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:28,179 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:28,180 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:28,180 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:28,180 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:28,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:43:28,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:28,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:28,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:28,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:28,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:28,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:28,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:28,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:43:28,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:28,186 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:28,186 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:28,187 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:28,187 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:28,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:43:28,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:28,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:28,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:28,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:28,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:28,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:28,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:28,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:43:28,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:28,198 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:28,199 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:28,199 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:28,199 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:28,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:43:28,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:28,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:28,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:28,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:28,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:28,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:28,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:28,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 15:43:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:28,208 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:28,208 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:28,208 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:28,209 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:28,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:43:28,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:28,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:28,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:28,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:28,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:43:28,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:28,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:28,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 15:43:28,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:28,216 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:28,216 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:28,216 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:28,217 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:28,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:43:28,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:28,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:28,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:28,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:28,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:43:28,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:28,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:28,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:43:28,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1525173144] [2020-09-24 15:43:28,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:43:28,263 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:43:28,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366084022] [2020-09-24 15:43:28,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:43:28,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:43:28,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:43:28,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:43:28,297 INFO L87 Difference]: Start difference. First operand 300 states. Second operand 4 states. [2020-09-24 15:43:29,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:43:29,743 INFO L93 Difference]: Finished difference Result 451 states and 537 transitions. [2020-09-24 15:43:29,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 15:43:29,745 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-24 15:43:29,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:43:29,766 INFO L225 Difference]: With dead ends: 451 [2020-09-24 15:43:29,766 INFO L226 Difference]: Without dead ends: 293 [2020-09-24 15:43:29,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:43:29,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-09-24 15:43:29,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 243. [2020-09-24 15:43:29,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-09-24 15:43:29,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 263 transitions. [2020-09-24 15:43:29,881 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 263 transitions. Word has length 148 [2020-09-24 15:43:29,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:43:29,883 INFO L479 AbstractCegarLoop]: Abstraction has 243 states and 263 transitions. [2020-09-24 15:43:29,883 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:43:29,883 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 263 transitions. [2020-09-24 15:43:29,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-24 15:43:29,888 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:43:29,888 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:43:29,889 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:43:29,889 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:43:29,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:43:29,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1881798897, now seen corresponding path program 1 times [2020-09-24 15:43:29,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:43:29,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1414207052] [2020-09-24 15:43:29,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:43:29,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:29,974 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:29,974 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:29,974 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:29,975 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:29,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-24 15:43:29,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:29,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:43:29,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:29,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:43:29,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 15:43:29,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:43:29,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:30,295 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:43:30,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:43:30,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:30,312 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:30,312 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:30,312 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:30,312 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:30,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:43:30,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:30,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:30,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:30,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:30,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:30,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:30,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:30,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:43:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:30,372 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:30,373 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:30,373 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:30,373 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:30,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:43:30,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:30,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:30,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:30,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:30,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:30,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:30,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:43:30,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:43:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:30,382 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:30,383 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:30,383 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:30,384 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:30,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:43:30,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:30,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:30,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:30,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:30,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:30,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:30,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:43:30,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:43:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:30,390 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:30,390 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:30,390 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:30,391 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:30,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:43:30,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:30,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:43:30,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:30,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:30,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:30,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:30,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:43:30,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:43:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:30,397 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:30,397 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:30,397 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:30,398 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:30,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:43:30,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:30,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:30,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:30,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:30,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:30,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:30,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:30,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:43:30,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:30,416 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:30,416 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:30,416 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:30,417 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:30,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:43:30,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:30,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:30,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:30,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:30,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:30,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:30,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:43:30,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 15:43:30,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:30,431 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:30,431 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:30,431 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:30,432 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:30,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:43:30,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:30,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:30,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:30,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:30,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:43:30,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:30,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 15:43:30,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 15:43:30,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:30,443 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:30,443 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:30,443 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:30,444 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:30,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:43:30,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:30,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:30,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:30,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:30,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:43:30,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:30,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:30,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:43:30,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1414207052] [2020-09-24 15:43:30,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:43:30,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 15:43:30,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493306993] [2020-09-24 15:43:30,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 15:43:30,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:43:30,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 15:43:30,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:43:30,533 INFO L87 Difference]: Start difference. First operand 243 states and 263 transitions. Second operand 5 states. [2020-09-24 15:43:31,139 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:43:32,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:43:32,002 INFO L93 Difference]: Finished difference Result 370 states and 420 transitions. [2020-09-24 15:43:32,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:43:32,003 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-24 15:43:32,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:43:32,007 INFO L225 Difference]: With dead ends: 370 [2020-09-24 15:43:32,007 INFO L226 Difference]: Without dead ends: 282 [2020-09-24 15:43:32,009 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:43:32,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-24 15:43:32,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 233. [2020-09-24 15:43:32,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-09-24 15:43:32,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 250 transitions. [2020-09-24 15:43:32,046 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 250 transitions. Word has length 149 [2020-09-24 15:43:32,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:43:32,047 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 250 transitions. [2020-09-24 15:43:32,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 15:43:32,047 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 250 transitions. [2020-09-24 15:43:32,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-24 15:43:32,050 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:43:32,050 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:43:32,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:43:32,051 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:43:32,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:43:32,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1107918501, now seen corresponding path program 1 times [2020-09-24 15:43:32,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:43:32,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [289501640] [2020-09-24 15:43:32,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:43:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:32,121 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:43:32,121 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -48 [2020-09-24 15:43:32,122 FATAL L256 erpolLogProxyWrapper]: Difference in width: 48 [2020-09-24 15:43:32,122 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:32,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-24 15:43:32,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:32,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:43:32,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:32,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:43:32,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 15:43:32,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:43:32,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:32,412 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:43:32,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:43:32,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:32,422 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:32,422 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:32,422 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:32,422 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:32,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:43:32,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:32,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:32,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:32,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:32,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:32,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:32,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:32,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:43:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:32,461 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:32,461 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:32,461 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:32,462 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:32,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:43:32,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:32,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:32,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:32,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:32,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:32,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:32,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:32,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:43:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:32,465 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:32,465 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:32,466 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:32,466 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:32,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:43:32,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:32,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:32,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:32,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:32,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:32,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:32,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:32,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:43:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:32,470 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:32,470 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:32,471 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:32,471 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:32,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:43:32,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:32,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:32,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:32,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:32,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:32,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:32,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:32,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:43:32,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:32,476 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:32,476 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:32,476 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:32,477 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:32,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:43:32,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:32,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:32,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:32,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:32,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:32,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:32,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:32,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:43:32,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:32,489 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:32,490 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:32,490 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:32,490 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:32,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:43:32,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:32,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:32,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:32,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:32,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:32,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:32,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:32,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 15:43:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:32,505 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:32,505 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:32,505 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:32,506 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:32,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:43:32,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:32,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:43:32,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:32,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:43:32,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:32,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 15:43:32,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:32,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 15:43:32,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:32,512 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:32,512 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:32,513 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:32,513 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:32,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:43:32,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:32,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:32,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:32,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:32,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:43:32,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:32,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:43:32,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 15:43:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:32,519 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:32,519 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:32,519 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:32,519 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:32,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:43:32,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:32,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:32,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:32,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:32,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:43:32,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:32,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:43:32,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:43:32,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [289501640] [2020-09-24 15:43:32,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:43:32,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 15:43:32,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258743274] [2020-09-24 15:43:32,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 15:43:32,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:43:32,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 15:43:32,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:43:32,588 INFO L87 Difference]: Start difference. First operand 233 states and 250 transitions. Second operand 6 states. [2020-09-24 15:43:33,237 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:43:34,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:43:34,937 INFO L93 Difference]: Finished difference Result 549 states and 644 transitions. [2020-09-24 15:43:34,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 15:43:34,938 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-24 15:43:34,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:43:34,949 INFO L225 Difference]: With dead ends: 549 [2020-09-24 15:43:34,949 INFO L226 Difference]: Without dead ends: 431 [2020-09-24 15:43:34,951 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:43:34,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2020-09-24 15:43:35,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 341. [2020-09-24 15:43:35,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-09-24 15:43:35,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 376 transitions. [2020-09-24 15:43:35,017 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 376 transitions. Word has length 162 [2020-09-24 15:43:35,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:43:35,018 INFO L479 AbstractCegarLoop]: Abstraction has 341 states and 376 transitions. [2020-09-24 15:43:35,018 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 15:43:35,018 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 376 transitions. [2020-09-24 15:43:35,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 15:43:35,024 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:43:35,024 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:43:35,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:43:35,025 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:43:35,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:43:35,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1919107382, now seen corresponding path program 1 times [2020-09-24 15:43:35,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:43:35,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2072798243] [2020-09-24 15:43:35,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:43:35,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:35,128 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:35,128 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:35,128 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:35,129 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:35,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 15:43:35,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:35,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 15:43:35,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:35,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:43:35,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 15:43:35,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-09-24 15:43:35,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:35,613 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:43:35,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:43:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:35,666 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:35,666 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:35,666 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:35,666 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:35,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:43:35,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:35,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:43:35,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:35,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:43:35,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:35,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:43:35,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:43:35,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:43:35,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:35,730 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:35,730 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:35,730 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:35,730 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:35,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:43:35,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:35,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:43:35,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:35,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:43:35,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:35,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:43:35,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:35,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:43:35,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:35,735 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:35,735 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:35,735 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:35,735 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:35,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:43:35,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:35,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:35,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:35,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:43:35,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:35,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:43:35,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:35,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:43:35,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:35,741 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:35,741 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:35,742 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:35,742 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:35,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:43:35,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:35,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:35,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:35,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:43:35,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:35,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:43:35,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:35,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:43:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:35,748 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:35,748 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:35,748 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:35,748 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:35,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:43:35,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:35,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:35,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:35,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:43:35,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:35,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:43:35,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:35,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:43:35,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:35,766 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:35,767 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:35,767 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:35,767 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:35,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:43:35,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:35,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:35,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:35,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:43:35,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:35,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:43:35,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:43:35,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 15:43:35,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:35,790 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:35,790 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:35,790 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:35,791 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:35,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:43:35,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:35,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:35,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:35,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:43:35,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:35,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:43:35,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:43:35,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 15:43:35,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:35,802 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:35,803 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:35,803 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:35,803 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:35,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:43:35,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:35,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:43:35,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:35,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:43:35,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:35,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:43:35,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:35,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 15:43:35,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:35,841 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:35,841 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:35,841 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:35,842 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:35,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:43:35,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:35,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:35,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:35,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:35,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:43:35,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:35,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:35,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:43:35,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2072798243] [2020-09-24 15:43:35,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:43:35,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 15:43:35,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001375171] [2020-09-24 15:43:35,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:43:35,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:43:35,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:43:35,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:43:35,886 INFO L87 Difference]: Start difference. First operand 341 states and 376 transitions. Second operand 10 states. [2020-09-24 15:43:36,441 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:43:38,062 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:43:38,413 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 15:43:38,848 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:43:39,207 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:43:39,542 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-24 15:43:39,840 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:43:40,168 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 15:43:40,686 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:43:41,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:43:41,634 INFO L93 Difference]: Finished difference Result 914 states and 1114 transitions. [2020-09-24 15:43:41,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 15:43:41,635 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-09-24 15:43:41,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:43:41,642 INFO L225 Difference]: With dead ends: 914 [2020-09-24 15:43:41,642 INFO L226 Difference]: Without dead ends: 688 [2020-09-24 15:43:41,644 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-24 15:43:41,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2020-09-24 15:43:41,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 534. [2020-09-24 15:43:41,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 534 states. [2020-09-24 15:43:41,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 599 transitions. [2020-09-24 15:43:41,737 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 599 transitions. Word has length 167 [2020-09-24 15:43:41,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:43:41,738 INFO L479 AbstractCegarLoop]: Abstraction has 534 states and 599 transitions. [2020-09-24 15:43:41,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:43:41,738 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 599 transitions. [2020-09-24 15:43:41,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 15:43:41,741 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:43:41,741 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:43:41,742 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:43:41,742 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:43:41,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:43:41,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1305102052, now seen corresponding path program 1 times [2020-09-24 15:43:41,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:43:41,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1862762200] [2020-09-24 15:43:41,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:43:41,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:41,860 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:41,861 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:41,861 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:41,861 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:41,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-24 15:43:41,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:41,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 15:43:41,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:41,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 15:43:41,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 15:43:41,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-09-24 15:43:41,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:42,198 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:43:42,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:43:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:42,240 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:42,240 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:42,240 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:42,241 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:42,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:43:42,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:42,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:42,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:42,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:43:42,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:42,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:43:42,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:43:42,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:43:42,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:42,290 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:42,290 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:42,290 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:42,291 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:42,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:43:42,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:42,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:42,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:42,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:43:42,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:42,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:43:42,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:42,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:43:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:42,295 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:42,295 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:42,296 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:42,296 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:42,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:43:42,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:42,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:42,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:42,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:43:42,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:42,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:43:42,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:42,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:43:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:42,301 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:42,301 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:42,301 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:42,301 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:42,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:43:42,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:42,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:42,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:42,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:43:42,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:42,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:43:42,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:42,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:43:42,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:42,306 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:42,307 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:42,307 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:42,307 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:42,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:43:42,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:42,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:42,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:42,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:43:42,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:42,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:43:42,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:42,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:43:42,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:42,321 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:42,322 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:42,322 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:42,322 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:42,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:43:42,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:42,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:42,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:42,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:43:42,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:42,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:43:42,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:42,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 15:43:42,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:42,335 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:42,335 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:42,335 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:42,335 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:42,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:43:42,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:42,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:42,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:42,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:43:42,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:42,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:43:42,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:42,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 15:43:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:42,365 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:42,365 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:42,365 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:42,366 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:42,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:43:42,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:42,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:42,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:42,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:43:42,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:42,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 15:43:42,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:42,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 15:43:42,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:42,376 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:42,376 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:42,376 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:42,376 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:42,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:43:42,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:42,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:42,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:42,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:43:42,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:42,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:43:42,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:42,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 15:43:42,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:42,384 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:42,384 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:42,384 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:42,385 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:42,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:43:42,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:42,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:43:42,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:42,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:43:42,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:42,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:43:42,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:42,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:43:42,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1862762200] [2020-09-24 15:43:42,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:43:42,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 15:43:42,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719287691] [2020-09-24 15:43:42,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 15:43:42,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:43:42,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 15:43:42,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:43:42,447 INFO L87 Difference]: Start difference. First operand 534 states and 599 transitions. Second operand 11 states. [2020-09-24 15:43:43,094 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:43:44,348 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:43:44,669 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:43:45,018 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:43:45,404 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:43:45,690 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:43:46,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:43:46,184 INFO L93 Difference]: Finished difference Result 986 states and 1205 transitions. [2020-09-24 15:43:46,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 15:43:46,185 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 172 [2020-09-24 15:43:46,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:43:46,185 INFO L225 Difference]: With dead ends: 986 [2020-09-24 15:43:46,186 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 15:43:46,189 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=205, Invalid=497, Unknown=0, NotChecked=0, Total=702 [2020-09-24 15:43:46,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 15:43:46,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 15:43:46,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 15:43:46,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 15:43:46,190 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 172 [2020-09-24 15:43:46,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:43:46,190 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 15:43:46,190 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 15:43:46,190 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 15:43:46,191 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 15:43:46,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:43:46,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 15:43:46,413 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:43:46,587 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:43:46,762 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:43:46,932 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:43:47,107 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:43:47,287 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:43:47,457 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:43:47,638 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:43:47,793 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:43:47,966 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:43:48,136 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:43:48,314 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:43:48,660 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 190 [2020-09-24 15:43:49,084 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 194 [2020-09-24 15:43:49,412 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 193 [2020-09-24 15:43:49,806 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 191 [2020-09-24 15:43:50,211 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 191 [2020-09-24 15:43:50,519 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 193 [2020-09-24 15:43:50,912 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 194 [2020-09-24 15:43:51,296 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 194 [2020-09-24 15:43:51,580 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 190 [2020-09-24 15:43:51,957 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 194 [2020-09-24 15:43:52,338 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 194 [2020-09-24 15:43:52,720 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 194 [2020-09-24 15:43:53,108 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 194 [2020-09-24 15:43:53,437 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 193 [2020-09-24 15:43:53,839 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 191 [2020-09-24 15:43:54,210 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 191 [2020-09-24 15:43:54,380 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:43:54,528 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:43:54,685 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:43:54,850 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:43:55,003 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:43:55,151 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:43:55,487 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-24 15:43:55,824 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-24 15:43:56,143 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-24 15:43:56,478 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-24 15:43:56,813 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-24 15:43:57,133 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-24 15:43:57,458 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-24 15:43:57,793 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-24 15:43:58,133 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-24 15:43:58,277 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:43:58,457 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 6 [2020-09-24 15:43:58,609 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:43:58,772 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:43:58,931 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:43:59,084 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:43:59,237 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:43:59,394 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:43:59,556 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:43:59,717 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:43:59,865 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:00,027 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:00,191 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:00,352 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:00,515 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:00,672 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:00,825 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:00,977 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:01,145 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:01,294 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:01,449 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:01,613 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:01,776 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:01,939 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:02,106 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:02,285 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:02,444 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:02,596 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:02,759 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:02,912 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:03,060 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:03,219 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:03,382 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:03,606 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 6 [2020-09-24 15:44:03,776 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:03,938 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:04,100 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:04,257 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:04,406 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:04,559 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:04,712 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:04,869 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:05,032 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:05,193 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:05,355 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:05,517 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:05,747 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 6 [2020-09-24 15:44:06,087 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 189 [2020-09-24 15:44:06,461 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 194 [2020-09-24 15:44:06,816 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 192 [2020-09-24 15:44:07,171 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 192 [2020-09-24 15:44:07,529 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 192 [2020-09-24 15:44:07,882 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 192 [2020-09-24 15:44:08,256 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 194 [2020-09-24 15:44:08,630 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 194 [2020-09-24 15:44:08,896 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 189 [2020-09-24 15:44:09,271 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 194 [2020-09-24 15:44:09,645 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 194 [2020-09-24 15:44:10,019 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 194 [2020-09-24 15:44:10,394 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 194 [2020-09-24 15:44:10,750 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 192 [2020-09-24 15:44:11,105 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 192 [2020-09-24 15:44:11,460 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 192 [2020-09-24 15:44:11,626 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:11,931 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 6 [2020-09-24 15:44:12,089 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:12,253 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:12,415 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:12,567 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:12,729 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:12,894 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:13,057 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:13,553 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 6 [2020-09-24 15:44:13,707 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:13,869 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:14,026 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:14,174 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:14,362 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 6 [2020-09-24 15:44:14,524 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:14,704 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:14,862 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:15,009 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:15,172 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:15,329 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:15,481 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:15,633 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:15,785 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:15,947 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:16,108 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:16,270 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:16,431 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:16,589 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:16,755 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:16,908 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:17,056 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:17,528 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 7 [2020-09-24 15:44:17,755 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 28 [2020-09-24 15:44:17,995 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 28 [2020-09-24 15:44:18,192 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 1 [2020-09-24 15:44:18,437 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 28 [2020-09-24 15:44:18,905 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 14 [2020-09-24 15:44:19,357 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 15 [2020-09-24 15:44:19,779 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 8 [2020-09-24 15:44:20,177 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 8 [2020-09-24 15:44:20,443 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:44:20,848 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 14 [2020-09-24 15:44:21,066 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 1 [2020-09-24 15:44:21,378 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 8 [2020-09-24 15:44:21,595 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 28 [2020-09-24 15:44:21,906 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 8 [2020-09-24 15:44:22,122 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 28 [2020-09-24 15:44:22,530 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 14 [2020-09-24 15:44:22,773 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 28 [2020-09-24 15:44:23,197 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 7 [2020-09-24 15:44:23,417 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 17 [2020-09-24 15:44:23,661 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 28 [2020-09-24 15:44:23,912 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 28 [2020-09-24 15:44:24,154 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 1