/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:49:22,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:49:22,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:49:22,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:49:22,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:49:22,758 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:49:22,760 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:49:22,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:49:22,767 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:49:22,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:49:22,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:49:22,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:49:22,772 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:49:22,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:49:22,778 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:49:22,780 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:49:22,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:49:22,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:49:22,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:49:22,793 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:49:22,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:49:22,796 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:49:22,798 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:49:22,798 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:49:22,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:49:22,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:49:22,816 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:49:22,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:49:22,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:49:22,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:49:22,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:49:22,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:49:22,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:49:22,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:49:22,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:49:22,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:49:22,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:49:22,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:49:22,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:49:22,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:49:22,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:49:22,831 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 00:49:22,879 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:49:22,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:49:22,881 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:49:22,882 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:49:22,882 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:49:22,882 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:49:22,883 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:49:22,883 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:49:22,883 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:49:22,883 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:49:22,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:49:22,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:49:22,884 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:49:22,885 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:49:22,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:49:22,885 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:49:22,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:49:22,886 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:49:22,886 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:49:22,886 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:49:22,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:49:22,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:49:22,887 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:49:22,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:49:22,887 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:49:22,887 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:49:22,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:49:22,888 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:49:22,888 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:49:22,888 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; [2020-09-25 00:49:23,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:49:23,406 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:49:23,410 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:49:23,412 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:49:23,413 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:49:23,414 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product55.cil.c [2020-09-25 00:49:23,500 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/db6af4e86/fa9b5bf18ff74d0198d148b4ab6ff0da/FLAG7be9bf335 [2020-09-25 00:49:24,099 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:49:24,103 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product55.cil.c [2020-09-25 00:49:24,125 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/db6af4e86/fa9b5bf18ff74d0198d148b4ab6ff0da/FLAG7be9bf335 [2020-09-25 00:49:24,368 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/db6af4e86/fa9b5bf18ff74d0198d148b4ab6ff0da [2020-09-25 00:49:24,383 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:49:24,391 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:49:24,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:49:24,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:49:24,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:49:24,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:49:24" (1/1) ... [2020-09-25 00:49:24,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:49:24, skipping insertion in model container [2020-09-25 00:49:24,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:49:24" (1/1) ... [2020-09-25 00:49:24,417 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:49:24,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:49:24,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:49:24,961 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:49:25,105 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:49:25,156 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:49:25,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:49:25 WrapperNode [2020-09-25 00:49:25,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:49:25,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:49:25,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:49:25,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:49:25,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:49:25" (1/1) ... [2020-09-25 00:49:25,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:49:25" (1/1) ... [2020-09-25 00:49:25,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:49:25" (1/1) ... [2020-09-25 00:49:25,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:49:25" (1/1) ... [2020-09-25 00:49:25,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:49:25" (1/1) ... [2020-09-25 00:49:25,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:49:25" (1/1) ... [2020-09-25 00:49:25,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:49:25" (1/1) ... [2020-09-25 00:49:25,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:49:25,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:49:25,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:49:25,265 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:49:25,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:49:25" (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 [2020-09-25 00:49:25,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:49:25,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:49:25,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:49:25,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:49:25,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:49:25,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:49:25,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:49:25,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:49:25,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:49:25,350 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:49:25,350 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:49:25,351 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:49:25,351 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:49:25,351 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:49:25,351 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:49:25,354 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:49:25,354 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:49:25,354 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:49:25,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:49:25,355 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:49:25,356 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:49:25,356 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:49:25,357 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:49:25,357 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:49:25,359 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:49:25,359 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:49:25,359 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 00:49:25,359 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 00:49:25,359 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:49:25,360 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 00:49:25,360 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:49:25,360 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 00:49:25,360 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:49:25,360 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:49:25,360 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:49:25,361 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:49:25,361 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:49:25,361 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:49:25,361 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 00:49:25,361 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 00:49:25,361 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 00:49:25,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 00:49:25,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 00:49:25,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 00:49:25,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:49:25,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:49:25,362 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:49:25,362 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:49:25,363 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:49:25,363 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:49:25,363 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:49:25,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:49:25,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:49:25,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:49:25,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:49:25,364 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:49:25,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:49:25,365 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:49:25,365 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:49:25,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:49:25,365 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:49:25,365 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:49:25,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:49:25,366 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:49:25,366 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:49:25,366 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:49:25,366 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:49:25,367 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:49:25,367 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:49:25,367 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:49:25,368 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:49:25,368 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 00:49:25,369 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:49:25,370 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:49:25,370 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:49:25,370 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:49:25,370 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:49:25,370 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:49:25,370 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:49:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:49:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 00:49:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:49:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:49:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:49:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:49:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 00:49:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 00:49:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:49:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:49:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:49:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 00:49:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 00:49:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:49:25,374 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 00:49:25,374 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 00:49:25,374 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:49:25,374 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 00:49:25,374 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 00:49:25,374 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:49:25,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:49:25,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:49:25,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:49:26,619 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:49:26,619 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:49:26,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:49:26 BoogieIcfgContainer [2020-09-25 00:49:26,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:49:26,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:49:26,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:49:26,632 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:49:26,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:49:24" (1/3) ... [2020-09-25 00:49:26,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0b2594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:49:26, skipping insertion in model container [2020-09-25 00:49:26,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:49:25" (2/3) ... [2020-09-25 00:49:26,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0b2594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:49:26, skipping insertion in model container [2020-09-25 00:49:26,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:49:26" (3/3) ... [2020-09-25 00:49:26,636 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product55.cil.c [2020-09-25 00:49:26,648 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:49:26,660 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:49:26,683 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:49:26,715 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:49:26,715 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:49:26,715 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:49:26,716 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:49:26,716 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:49:26,716 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:49:26,716 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:49:26,716 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:49:26,746 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states. [2020-09-25 00:49:26,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 00:49:26,771 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:49:26,773 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:49:26,773 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:49:26,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:49:26,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1837457757, now seen corresponding path program 1 times [2020-09-25 00:49:26,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:49:26,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [766112293] [2020-09-25 00:49:26,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:49:27,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:27,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:27,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:29,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:29,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:32,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:32,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 00:49:32,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:49:32,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 00:49:32,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:32,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:49:32,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-09-25 00:49:32,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:49:32,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 00:49:32,722 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:49:32,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:49:32,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:32,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:32,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:32,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:49:32,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:32,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-25 00:49:32,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:32,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:49:32,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:49:32,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:49:32,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:49:32,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:49:32,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:32,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:32,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:32,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:49:32,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:32,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:49:32,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:32,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:49:32,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:49:32,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:49:32,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:49:32,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:49:32,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:32,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:32,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:32,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:49:32,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:32,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:49:32,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:32,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:49:32,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:49:32,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:49:32,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:49:32,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:49:32,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:33,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:33,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:33,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:49:33,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:33,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:49:33,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:33,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:49:33,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:49:33,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:49:33,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:49:33,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:49:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:33,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:33,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:33,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:49:33,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:33,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:49:33,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:33,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:49:33,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:49:33,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:49:33,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:49:33,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:49:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:33,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:33,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:33,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:49:33,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:33,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:49:33,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:33,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:49:33,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:49:33,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:49:33,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:49:33,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 00:49:33,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:33,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:33,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:33,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 00:49:33,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:33,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:49:33,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:33,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:49:33,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:49:33,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:49:33,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:49:33,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:49:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:33,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:33,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:33,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:49:33,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:33,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:49:33,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:33,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:49:33,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:49:33,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:49:33,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:49:33,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 00:49:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:33,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:33,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:33,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:49:33,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:33,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 00:49:33,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:33,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:49:33,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:49:33,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:49:33,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:49:33,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 00:49:33,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:33,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:33,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:33,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:49:33,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:33,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 00:49:33,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:33,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:49:33,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:49:33,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:49:33,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:49:33,188 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 00:49:33,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [766112293] [2020-09-25 00:49:33,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:49:33,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:49:33,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519969340] [2020-09-25 00:49:33,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:49:33,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:49:33,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:49:33,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:49:33,229 INFO L87 Difference]: Start difference. First operand 356 states. Second operand 9 states. [2020-09-25 00:49:33,974 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:49:34,732 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:49:35,069 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:49:36,569 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:49:36,892 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:49:37,244 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:49:37,835 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:49:38,191 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:49:38,499 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:49:39,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:49:39,289 INFO L93 Difference]: Finished difference Result 689 states and 838 transitions. [2020-09-25 00:49:39,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 00:49:39,291 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-25 00:49:39,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:49:39,320 INFO L225 Difference]: With dead ends: 689 [2020-09-25 00:49:39,320 INFO L226 Difference]: Without dead ends: 457 [2020-09-25 00:49:39,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 00:49:39,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2020-09-25 00:49:39,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 408. [2020-09-25 00:49:39,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2020-09-25 00:49:39,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 460 transitions. [2020-09-25 00:49:39,466 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 460 transitions. Word has length 160 [2020-09-25 00:49:39,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:49:39,467 INFO L479 AbstractCegarLoop]: Abstraction has 408 states and 460 transitions. [2020-09-25 00:49:39,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:49:39,467 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 460 transitions. [2020-09-25 00:49:39,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-09-25 00:49:39,474 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:49:39,475 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:49:39,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:49:39,475 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:49:39,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:49:39,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1620118824, now seen corresponding path program 1 times [2020-09-25 00:49:39,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:49:39,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [993829001] [2020-09-25 00:49:39,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:49:39,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:39,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:39,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:39,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:41,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:41,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:44,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:44,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 299 [2020-09-25 00:49:44,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:49:44,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 00:49:44,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:44,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:49:44,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-09-25 00:49:44,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 00:49:44,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:49:44,917 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:49:44,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:49:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:44,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:45,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:45,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:49:45,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:45,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 00:49:45,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:45,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:49:45,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:49:45,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:49:45,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:49:45,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:49:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:45,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:45,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:45,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:49:45,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:45,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:49:45,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:45,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:49:45,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:49:45,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:49:45,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:49:45,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:49:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:45,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:45,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:45,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:49:45,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:45,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:49:45,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:45,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:49:45,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:49:45,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:49:45,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:49:45,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:49:45,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:45,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:45,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:45,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:49:45,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:45,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:49:45,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:45,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:49:45,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:49:45,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:49:45,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:49:45,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:49:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:45,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:45,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:45,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:49:45,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:45,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:49:45,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:45,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:49:45,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:49:45,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:49:45,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:49:45,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:49:45,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:45,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:45,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:45,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:49:45,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:45,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:49:45,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:45,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:49:45,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:49:45,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:49:45,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:49:45,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 00:49:45,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:45,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:45,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:45,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 00:49:45,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:45,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 00:49:45,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:45,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:49:45,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:49:45,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 00:49:45,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:49:45,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:49:45,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:45,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:45,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:45,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 00:49:45,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:45,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:49:45,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:45,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:49:45,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:49:45,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:49:45,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:49:45,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:49:45,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:45,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:45,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:45,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:49:45,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:45,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:49:45,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:45,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:49:45,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:49:45,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:49:45,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:49:45,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 00:49:45,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:45,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:45,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:45,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 00:49:45,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:45,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:49:45,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:45,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:49:45,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:49:45,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 00:49:45,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:49:45,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:49:45,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:45,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:45,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:45,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:49:45,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:45,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 00:49:45,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:45,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:49:45,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:49:45,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:49:45,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:49:45,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 00:49:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:45,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:45,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:45,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 00:49:45,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:45,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:49:45,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:45,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:49:45,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:49:45,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 00:49:45,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:49:45,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:49:45,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:45,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:45,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:45,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:49:45,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:45,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:49:45,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:45,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:49:45,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:49:45,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:49:45,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:49:45,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 00:49:45,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:45,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:45,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:45,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:45,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 00:49:45,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:49:45,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-25 00:49:45,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:45,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:49:45,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 00:49:45,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:49:45,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:49:45,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:49:45,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:45,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:45,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:45,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:49:45,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:45,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-25 00:49:45,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:45,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:49:45,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 00:49:45,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:49:45,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:49:45,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:49:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:45,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:45,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:45,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:49:45,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:45,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 00:49:45,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:45,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:49:45,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 00:49:45,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:49:45,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:49:45,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:49:45,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:45,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:45,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:45,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:49:45,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:45,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 00:49:45,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:45,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:49:45,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:49:45,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 00:49:45,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:49:45,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:49:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:45,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:45,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:45,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:49:45,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:45,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:49:45,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:45,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:49:45,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:49:45,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:49:45,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:49:45,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:49:45,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:45,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:45,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:45,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:49:45,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:45,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:49:45,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:45,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:49:45,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:49:45,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:49:45,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:49:45,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-25 00:49:45,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:45,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:45,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:45,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:49:45,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:45,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:49:45,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:45,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:49:45,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:49:45,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:49:45,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:49:45,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-25 00:49:45,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:45,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:45,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:49:45,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:49:45,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:49:45,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:49:45,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:49:45,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:49:45,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:49:45,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:49:45,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:49:45,904 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-25 00:49:45,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [993829001] [2020-09-25 00:49:45,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:49:45,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 00:49:45,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847756829] [2020-09-25 00:49:45,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 00:49:45,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:49:45,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 00:49:45,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2020-09-25 00:49:45,912 INFO L87 Difference]: Start difference. First operand 408 states and 460 transitions. Second operand 16 states. [2020-09-25 00:49:47,047 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:49:48,350 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:49:48,696 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:49:49,099 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:49:49,470 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:49:49,789 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:49:50,140 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:49:50,693 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:49:51,067 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:49:51,548 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:49:51,977 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:49:52,352 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:49:52,675 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:49:53,041 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:49:53,359 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 00:49:53,736 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 00:49:54,075 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 00:49:54,464 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:49:54,819 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:49:55,193 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 00:49:55,544 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 00:49:55,900 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:49:56,237 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:49:59,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:49:59,275 INFO L93 Difference]: Finished difference Result 1096 states and 1439 transitions. [2020-09-25 00:49:59,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-09-25 00:49:59,276 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 240 [2020-09-25 00:49:59,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:49:59,286 INFO L225 Difference]: With dead ends: 1096 [2020-09-25 00:49:59,286 INFO L226 Difference]: Without dead ends: 803 [2020-09-25 00:49:59,290 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=346, Invalid=1460, Unknown=0, NotChecked=0, Total=1806 [2020-09-25 00:49:59,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2020-09-25 00:49:59,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 656. [2020-09-25 00:49:59,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 656 states. [2020-09-25 00:49:59,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 804 transitions. [2020-09-25 00:49:59,406 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 804 transitions. Word has length 240 [2020-09-25 00:49:59,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:49:59,409 INFO L479 AbstractCegarLoop]: Abstraction has 656 states and 804 transitions. [2020-09-25 00:49:59,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 00:49:59,409 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 804 transitions. [2020-09-25 00:49:59,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-09-25 00:49:59,415 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:49:59,415 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:49:59,415 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:49:59,416 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:49:59,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:49:59,416 INFO L82 PathProgramCache]: Analyzing trace with hash 2082965713, now seen corresponding path program 1 times [2020-09-25 00:49:59,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:49:59,416 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [699860893] [2020-09-25 00:49:59,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:49:59,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:59,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:59,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:49:59,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:00,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:04,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:04,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 311 [2020-09-25 00:50:04,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:50:04,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 00:50:04,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:04,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:50:04,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-09-25 00:50:04,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:50:04,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:50:04,827 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:50:04,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:50:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:04,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:04,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:04,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:50:04,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:04,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 00:50:04,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:04,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:50:04,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:50:04,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:50:04,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:50:04,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:50:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:04,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:04,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:04,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:50:04,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:04,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:50:04,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:04,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:50:04,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:50:04,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:50:04,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:50:04,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:50:04,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:05,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:05,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:05,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:50:05,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:05,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:50:05,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:05,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:50:05,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:50:05,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:50:05,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:50:05,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:50:05,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:05,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:05,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:05,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:50:05,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:05,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:50:05,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:05,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:50:05,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:50:05,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:50:05,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:50:05,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:50:05,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:05,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:05,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:05,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:50:05,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:05,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:50:05,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:05,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:50:05,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:50:05,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:50:05,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:50:05,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:50:05,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:05,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:05,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:05,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:50:05,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:05,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:50:05,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:05,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:50:05,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:50:05,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:50:05,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:50:05,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 00:50:05,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:05,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:05,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:05,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 00:50:05,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:05,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:50:05,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:05,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:50:05,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:50:05,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:50:05,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:50:05,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:50:05,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:05,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:05,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:05,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 00:50:05,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:05,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:50:05,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:05,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:50:05,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:50:05,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:50:05,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:50:05,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:50:05,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:05,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:05,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:05,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:50:05,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:05,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:50:05,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:05,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:50:05,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:50:05,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:50:05,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:50:05,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 00:50:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:05,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:05,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:05,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 00:50:05,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:05,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:50:05,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:05,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:50:05,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:50:05,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:50:05,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:50:05,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:50:05,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:05,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:05,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:05,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:50:05,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:05,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:50:05,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:05,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:50:05,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:50:05,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:50:05,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:50:05,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 00:50:05,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:05,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:05,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:05,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:50:05,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:05,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:50:05,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:05,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:50:05,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:50:05,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:50:05,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:50:05,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-25 00:50:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:05,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:05,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:05,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 00:50:05,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:05,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:50:05,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:05,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:50:05,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:50:05,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:50:05,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:50:05,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:50:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:05,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:05,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:05,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:50:05,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:05,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:50:05,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:05,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:50:05,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:50:05,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:50:05,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:50:05,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 00:50:05,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:05,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:05,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:05,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 00:50:05,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:05,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 00:50:05,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:05,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:50:05,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 00:50:05,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:50:05,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:50:05,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:50:05,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:05,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:05,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:05,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:50:05,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:05,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 00:50:05,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:05,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:50:05,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 00:50:05,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:50:05,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:50:05,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:50:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:05,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:05,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:05,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:50:05,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:05,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 00:50:05,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:05,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:50:05,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:50:05,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:50:05,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:50:05,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:50:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:05,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:05,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:05,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:50:05,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:05,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 00:50:05,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:05,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:50:05,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:50:05,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:50:05,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:50:05,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:50:05,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:05,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:05,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:05,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:50:05,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:05,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:50:05,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:05,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:50:05,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:50:05,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:50:05,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:50:05,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:50:05,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:05,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:05,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:05,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:50:05,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:05,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:50:05,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:05,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:50:05,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:50:05,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:50:05,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:50:05,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-25 00:50:05,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:05,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:05,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:05,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:50:05,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:05,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:50:05,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:05,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:50:05,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:50:05,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:50:05,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:50:05,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-09-25 00:50:05,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:05,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:05,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:05,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:50:05,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:05,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:50:05,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:05,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:50:05,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:50:05,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:50:05,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:50:05,534 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-09-25 00:50:05,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [699860893] [2020-09-25 00:50:05,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:50:05,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 00:50:05,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014963032] [2020-09-25 00:50:05,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:50:05,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:50:05,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:50:05,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:50:05,540 INFO L87 Difference]: Start difference. First operand 656 states and 804 transitions. Second operand 10 states. [2020-09-25 00:50:07,064 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:50:07,418 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:50:07,737 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:50:08,067 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:50:08,376 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:50:09,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:50:09,501 INFO L93 Difference]: Finished difference Result 1317 states and 1755 transitions. [2020-09-25 00:50:09,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 00:50:09,502 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 250 [2020-09-25 00:50:09,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:50:09,509 INFO L225 Difference]: With dead ends: 1317 [2020-09-25 00:50:09,509 INFO L226 Difference]: Without dead ends: 776 [2020-09-25 00:50:09,512 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2020-09-25 00:50:09,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2020-09-25 00:50:09,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 634. [2020-09-25 00:50:09,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-09-25 00:50:09,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 767 transitions. [2020-09-25 00:50:09,599 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 767 transitions. Word has length 250 [2020-09-25 00:50:09,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:50:09,600 INFO L479 AbstractCegarLoop]: Abstraction has 634 states and 767 transitions. [2020-09-25 00:50:09,600 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 00:50:09,600 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 767 transitions. [2020-09-25 00:50:09,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-25 00:50:09,604 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:50:09,604 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:50:09,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:50:09,605 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:50:09,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:50:09,605 INFO L82 PathProgramCache]: Analyzing trace with hash -739469201, now seen corresponding path program 1 times [2020-09-25 00:50:09,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:50:09,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2085645414] [2020-09-25 00:50:09,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:50:09,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:09,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:11,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:11,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-09-25 00:50:11,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:11,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1350 [2020-09-25 00:50:11,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:11,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 00:50:11,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 00:50:11,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 00:50:11,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:50:11,386 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:50:11,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:50:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:11,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:11,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:11,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:50:11,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:11,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-09-25 00:50:11,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:11,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:50:11,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:50:11,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 00:50:11,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:50:11,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:50:11,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:11,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:11,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:11,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:50:11,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:11,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:50:11,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:11,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:50:11,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:50:11,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:50:11,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:50:11,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:50:11,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:11,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:11,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:11,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:50:11,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:11,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:50:11,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:11,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:50:11,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:50:11,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:50:11,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:50:11,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:50:11,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:11,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:11,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:11,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:50:11,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:11,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 00:50:11,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:11,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:50:11,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:50:11,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:50:11,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:50:11,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:50:11,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:11,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:11,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:11,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:50:11,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:11,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:50:11,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:11,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:50:11,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:50:11,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:50:11,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:50:11,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:50:11,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:11,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:11,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:11,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:50:11,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:11,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:50:11,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:11,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:50:11,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:50:11,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 00:50:11,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:50:11,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 00:50:11,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:11,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:11,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:11,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 00:50:11,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:11,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:50:11,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:11,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:50:11,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:50:11,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 00:50:11,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:50:11,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:50:11,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:11,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:11,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:11,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:50:11,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:11,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:50:11,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:11,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:50:11,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:50:11,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:50:11,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:50:11,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 00:50:11,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:11,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:11,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:11,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 00:50:11,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:11,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 00:50:11,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:11,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:50:11,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 00:50:11,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:50:11,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:50:11,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:50:11,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:11,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:11,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:11,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:50:11,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:11,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 00:50:11,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:11,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:50:11,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:50:11,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 00:50:11,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:50:12,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:50:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:12,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:12,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:12,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:50:12,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:12,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 00:50:12,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:12,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:50:12,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:50:12,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 00:50:12,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:50:12,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:50:12,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:12,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:12,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:12,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:50:12,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:12,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 00:50:12,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:12,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:50:12,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:50:12,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:50:12,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:50:12,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:50:12,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:12,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:12,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:12,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:50:12,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:12,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:50:12,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:12,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:50:12,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:50:12,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 00:50:12,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:50:12,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:50:12,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:12,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:12,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:12,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:50:12,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:12,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:50:12,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:12,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:50:12,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:50:12,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 00:50:12,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:50:12,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-25 00:50:12,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:12,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:12,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:12,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:50:12,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:12,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:50:12,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:12,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:50:12,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:50:12,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:50:12,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:50:12,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-25 00:50:12,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:50:12,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:50:12,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:50:12,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:50:12,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:50:12,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:50:12,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:50:12,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:50:12,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:50:12,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:50:12,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:50:12,199 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 00:50:12,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2085645414] [2020-09-25 00:50:12,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:50:12,200 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 00:50:12,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27565605] [2020-09-25 00:50:12,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 00:50:12,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:50:12,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 00:50:12,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:50:12,202 INFO L87 Difference]: Start difference. First operand 634 states and 767 transitions. Second operand 7 states. [2020-09-25 00:50:12,787 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:50:13,559 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189