/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=WIDEST --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_spec4_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:00:49,120 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:00:49,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:00:49,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:00:49,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:00:49,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:00:49,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:00:49,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:00:49,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:00:49,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:00:49,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:00:49,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:00:49,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:00:49,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:00:49,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:00:49,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:00:49,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:00:49,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:00:49,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:00:49,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:00:49,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:00:49,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:00:49,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:00:49,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:00:49,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:00:49,183 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:00:49,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:00:49,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:00:49,188 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:00:49,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:00:49,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:00:49,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:00:49,195 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:00:49,196 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:00:49,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:00:49,198 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:00:49,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:00:49,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:00:49,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:00:49,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:00:49,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:00:49,205 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 03:00:49,263 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:00:49,264 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:00:49,265 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:00:49,265 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:00:49,266 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:00:49,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:00:49,266 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:00:49,266 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:00:49,267 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:00:49,267 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:00:49,267 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:00:49,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:00:49,267 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:00:49,267 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:00:49,268 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:00:49,268 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:00:49,268 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:00:49,268 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:00:49,269 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:00:49,269 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:00:49,269 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:00:49,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:00:49,269 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:00:49,270 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:00:49,270 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:00:49,270 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:00:49,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:00:49,270 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:00:49,271 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:00:49,271 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 03:00:49,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:00:49,777 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:00:49,783 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:00:49,786 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:00:49,787 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:00:49,788 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product16.cil.c [2020-09-25 03:00:49,862 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/42dd52127/1e4b27e56228404288d2b87442666e84/FLAGdb518b91a [2020-09-25 03:00:50,544 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:00:50,544 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product16.cil.c [2020-09-25 03:00:50,559 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/42dd52127/1e4b27e56228404288d2b87442666e84/FLAGdb518b91a [2020-09-25 03:00:50,763 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/42dd52127/1e4b27e56228404288d2b87442666e84 [2020-09-25 03:00:50,777 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:00:50,783 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:00:50,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:00:50,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:00:50,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:00:50,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:00:50" (1/1) ... [2020-09-25 03:00:50,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c56d103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:50, skipping insertion in model container [2020-09-25 03:00:50,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:00:50" (1/1) ... [2020-09-25 03:00:50,803 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:00:50,854 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:00:51,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:00:51,328 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:00:51,459 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:00:51,512 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:00:51,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:51 WrapperNode [2020-09-25 03:00:51,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:00:51,514 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:00:51,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:00:51,515 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:00:51,531 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:51" (1/1) ... [2020-09-25 03:00:51,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:51" (1/1) ... [2020-09-25 03:00:51,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:51" (1/1) ... [2020-09-25 03:00:51,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:51" (1/1) ... [2020-09-25 03:00:51,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:51" (1/1) ... [2020-09-25 03:00:51,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:51" (1/1) ... [2020-09-25 03:00:51,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:51" (1/1) ... [2020-09-25 03:00:51,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:00:51,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:00:51,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:00:51,646 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:00:51,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:51" (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 03:00:51,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:00:51,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:00:51,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 03:00:51,737 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 03:00:51,738 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 03:00:51,739 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 03:00:51,739 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 03:00:51,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 03:00:51,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 03:00:51,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 03:00:51,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 03:00:51,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 03:00:51,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 03:00:51,741 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 03:00:51,741 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 03:00:51,742 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 03:00:51,743 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 03:00:51,743 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 03:00:51,743 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 03:00:51,743 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 03:00:51,744 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 03:00:51,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 03:00:51,744 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 03:00:51,744 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:00:51,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 03:00:51,745 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 03:00:51,745 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 03:00:51,746 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 03:00:51,746 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-25 03:00:51,746 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 03:00:51,746 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 03:00:51,746 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 03:00:51,746 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 03:00:51,747 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 03:00:51,747 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 03:00:51,747 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 03:00:51,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 03:00:51,747 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 03:00:51,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:00:51,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:00:51,748 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 03:00:51,748 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 03:00:51,748 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 03:00:51,748 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 03:00:51,748 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 03:00:51,749 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 03:00:51,749 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 03:00:51,749 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 03:00:51,749 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 03:00:51,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 03:00:51,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 03:00:51,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 03:00:51,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 03:00:51,750 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 03:00:51,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 03:00:51,751 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 03:00:51,751 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 03:00:51,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 03:00:51,751 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 03:00:51,751 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 03:00:51,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 03:00:51,752 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 03:00:51,752 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 03:00:51,752 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 03:00:51,752 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 03:00:51,752 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 03:00:51,753 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 03:00:51,753 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 03:00:51,753 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 03:00:51,753 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 03:00:51,754 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 03:00:51,754 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 03:00:51,755 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 03:00:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 03:00:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 03:00:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:00:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 03:00:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 03:00:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 03:00:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 03:00:51,757 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 03:00:51,757 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 03:00:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 03:00:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 03:00:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 03:00:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 03:00:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-25 03:00:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:00:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 03:00:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:00:52,878 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:00:52,878 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 03:00:52,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:00:52 BoogieIcfgContainer [2020-09-25 03:00:52,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:00:52,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:00:52,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:00:52,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:00:52,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:00:50" (1/3) ... [2020-09-25 03:00:52,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bc7de42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:00:52, skipping insertion in model container [2020-09-25 03:00:52,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:51" (2/3) ... [2020-09-25 03:00:52,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bc7de42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:00:52, skipping insertion in model container [2020-09-25 03:00:52,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:00:52" (3/3) ... [2020-09-25 03:00:52,897 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product16.cil.c [2020-09-25 03:00:52,908 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:00:52,917 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:00:52,937 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:00:52,966 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:00:52,966 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:00:52,966 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:00:52,966 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:00:52,966 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:00:52,967 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:00:52,967 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:00:52,967 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:00:52,991 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states. [2020-09-25 03:00:53,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 03:00:53,007 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:00:53,009 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:00:53,009 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:00:53,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:00:53,015 INFO L82 PathProgramCache]: Analyzing trace with hash -769040823, now seen corresponding path program 1 times [2020-09-25 03:00:53,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:00:53,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1449165621] [2020-09-25 03:00:53,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:00:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:53,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:53,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:55,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:56,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:58,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:58,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 03:00:58,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:00:58,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-09-25 03:00:58,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:58,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:00:58,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 03:00:58,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 03:00:58,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 03:00:59,126 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 03:00:59,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:00:59,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:59,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:59,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:59,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 03:00:59,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:59,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380 [2020-09-25 03:00:59,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:59,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:59,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:59,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 03:00:59,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:59,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 03:00:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:59,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:59,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:59,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:00:59,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:59,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:00:59,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:59,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:59,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:59,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:00:59,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:59,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 03:00:59,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:59,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:59,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:59,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:00:59,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:59,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:00:59,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:59,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:59,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:59,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:00:59,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:00:59,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 03:00:59,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:59,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:59,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:59,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:59,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:59,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:00:59,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:59,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:59,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:59,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:00:59,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:59,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 03:00:59,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:59,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:59,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:59,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:00:59,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:59,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:00:59,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:59,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:59,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:59,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:00:59,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:59,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 03:00:59,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:59,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:59,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:59,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:59,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:59,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 03:00:59,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:59,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:00:59,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:59,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:00:59,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:59,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 03:00:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:59,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:59,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:59,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:59,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:59,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:00:59,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:59,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:59,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:00:59,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:59,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:59,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:00:59,883 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1449165621] [2020-09-25 03:00:59,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:00:59,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 03:00:59,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773958682] [2020-09-25 03:00:59,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 03:00:59,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:00:59,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 03:00:59,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 03:00:59,914 INFO L87 Difference]: Start difference. First operand 289 states. Second operand 8 states. [2020-09-25 03:01:00,534 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 03:01:01,469 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:01:01,765 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:01:02,283 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:01:02,752 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 03:01:03,083 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:01:03,428 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:01:03,757 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:01:05,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:01:05,470 INFO L93 Difference]: Finished difference Result 551 states and 683 transitions. [2020-09-25 03:01:05,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 03:01:05,473 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 03:01:05,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:01:05,502 INFO L225 Difference]: With dead ends: 551 [2020-09-25 03:01:05,502 INFO L226 Difference]: Without dead ends: 383 [2020-09-25 03:01:05,509 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 03:01:05,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2020-09-25 03:01:05,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 338. [2020-09-25 03:01:05,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-09-25 03:01:05,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 382 transitions. [2020-09-25 03:01:05,672 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 382 transitions. Word has length 142 [2020-09-25 03:01:05,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:01:05,673 INFO L479 AbstractCegarLoop]: Abstraction has 338 states and 382 transitions. [2020-09-25 03:01:05,673 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 03:01:05,673 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 382 transitions. [2020-09-25 03:01:05,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 03:01:05,680 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:01:05,681 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:01:05,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:01:05,681 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:01:05,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:01:05,682 INFO L82 PathProgramCache]: Analyzing trace with hash 454962212, now seen corresponding path program 1 times [2020-09-25 03:01:05,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:01:05,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [427690707] [2020-09-25 03:01:05,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:01:05,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:05,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:05,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:07,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:10,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:10,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 03:01:10,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:01:10,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 03:01:10,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:10,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:01:10,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 03:01:10,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 03:01:10,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:01:11,161 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 03:01:11,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:01:11,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:11,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:11,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:11,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 03:01:11,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:11,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-09-25 03:01:11,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:11,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:01:11,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:01:11,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 03:01:11,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:01:11,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 03:01:11,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:11,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:11,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:11,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:01:11,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:11,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:01:11,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:11,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:01:11,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:01:11,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:01:11,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:01:11,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 03:01:11,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:11,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:11,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:11,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:01:11,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:11,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:01:11,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:11,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:01:11,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:01:11,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:01:11,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:01:11,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 03:01:11,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:11,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:11,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:11,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:01:11,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:11,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:01:11,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:11,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:01:11,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:01:11,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:01:11,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:01:11,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 03:01:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:11,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:11,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:11,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:01:11,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:11,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:01:11,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:11,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:01:11,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:01:11,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:01:11,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:01:11,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 03:01:11,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:11,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:11,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:11,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:01:11,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:11,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:01:11,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:11,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:01:11,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:01:11,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:01:11,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:01:11,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 03:01:11,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:11,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:11,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:11,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:01:11,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:11,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:01:11,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:11,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:01:11,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:01:11,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:01:11,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:01:11,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 03:01:11,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:11,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:11,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:11,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:01:11,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:11,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:01:11,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:11,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:01:11,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:01:11,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:01:11,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:01:11,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:01:11,606 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [427690707] [2020-09-25 03:01:11,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:01:11,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 03:01:11,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25181075] [2020-09-25 03:01:11,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 03:01:11,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:01:11,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 03:01:11,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:01:11,616 INFO L87 Difference]: Start difference. First operand 338 states and 382 transitions. Second operand 5 states. [2020-09-25 03:01:12,090 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 03:01:14,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:01:14,330 INFO L93 Difference]: Finished difference Result 870 states and 1066 transitions. [2020-09-25 03:01:14,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 03:01:14,330 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 03:01:14,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:01:14,339 INFO L225 Difference]: With dead ends: 870 [2020-09-25 03:01:14,339 INFO L226 Difference]: Without dead ends: 642 [2020-09-25 03:01:14,343 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:01:14,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2020-09-25 03:01:14,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 545. [2020-09-25 03:01:14,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 545 states. [2020-09-25 03:01:14,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 631 transitions. [2020-09-25 03:01:14,457 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 631 transitions. Word has length 148 [2020-09-25 03:01:14,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:01:14,458 INFO L479 AbstractCegarLoop]: Abstraction has 545 states and 631 transitions. [2020-09-25 03:01:14,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 03:01:14,458 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 631 transitions. [2020-09-25 03:01:14,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 03:01:14,462 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:01:14,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:01:14,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:01:14,463 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:01:14,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:01:14,464 INFO L82 PathProgramCache]: Analyzing trace with hash 121120648, now seen corresponding path program 1 times [2020-09-25 03:01:14,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:01:14,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1691254672] [2020-09-25 03:01:14,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:01:14,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:14,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:14,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:14,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:19,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:19,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 03:01:19,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:01:19,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-09-25 03:01:19,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:19,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:01:19,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 03:01:19,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 03:01:19,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:01:19,863 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 03:01:19,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:01:19,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:19,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:20,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:20,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 03:01:20,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:20,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-25 03:01:20,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:20,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:01:20,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:01:20,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 03:01:20,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:01:20,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 03:01:20,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:20,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:20,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:20,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:01:20,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:20,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:01:20,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:20,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:01:20,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:01:20,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:01:20,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:01:20,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 03:01:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:20,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:20,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:20,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:01:20,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:20,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:01:20,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:20,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:01:20,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:01:20,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:01:20,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:01:20,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 03:01:20,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:20,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:20,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:20,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:01:20,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:20,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:01:20,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:20,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:01:20,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:01:20,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:01:20,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:01:20,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 03:01:20,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:20,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:20,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:20,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:01:20,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:20,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:01:20,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:20,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:01:20,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:01:20,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:01:20,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:01:20,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 03:01:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:20,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:20,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:20,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:01:20,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:20,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:01:20,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:20,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:01:20,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 03:01:20,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:01:20,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:01:20,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 03:01:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:20,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:20,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:20,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 03:01:20,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:20,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:01:20,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:20,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:01:20,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 03:01:20,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:01:20,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:01:20,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:01:20,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:20,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:20,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:20,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:01:20,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:20,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:01:20,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:20,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:01:20,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:01:20,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:01:20,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:01:20,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 03:01:20,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:20,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:20,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:20,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:01:20,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:20,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:01:20,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:20,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:01:20,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:01:20,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:01:20,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:01:20,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 03:01:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:20,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:20,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:20,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:01:20,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:20,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:01:20,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:20,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:01:20,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:01:20,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:01:20,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:01:20,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:01:20,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1691254672] [2020-09-25 03:01:20,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:01:20,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 03:01:20,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999939728] [2020-09-25 03:01:20,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 03:01:20,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:01:20,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 03:01:20,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 03:01:20,313 INFO L87 Difference]: Start difference. First operand 545 states and 631 transitions. Second operand 6 states. [2020-09-25 03:01:20,880 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:01:21,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:01:21,681 INFO L93 Difference]: Finished difference Result 880 states and 1066 transitions. [2020-09-25 03:01:21,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 03:01:21,686 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2020-09-25 03:01:21,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:01:21,693 INFO L225 Difference]: With dead ends: 880 [2020-09-25 03:01:21,696 INFO L226 Difference]: Without dead ends: 424 [2020-09-25 03:01:21,698 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 03:01:21,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-09-25 03:01:21,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 397. [2020-09-25 03:01:21,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2020-09-25 03:01:21,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 432 transitions. [2020-09-25 03:01:21,769 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 432 transitions. Word has length 156 [2020-09-25 03:01:21,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:01:21,770 INFO L479 AbstractCegarLoop]: Abstraction has 397 states and 432 transitions. [2020-09-25 03:01:21,770 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 03:01:21,770 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 432 transitions. [2020-09-25 03:01:21,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 03:01:21,773 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:01:21,774 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:01:21,774 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:01:21,774 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:01:21,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:01:21,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1031176059, now seen corresponding path program 1 times [2020-09-25 03:01:21,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:01:21,775 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1427344251] [2020-09-25 03:01:21,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:01:21,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:21,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:22,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:22,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:24,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:26,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:26,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 03:01:26,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:01:26,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-25 03:01:26,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:26,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:01:26,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 03:01:26,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-25 03:01:26,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:01:27,289 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 03:01:27,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:01:27,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:27,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:27,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:27,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 03:01:27,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:27,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-09-25 03:01:27,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:27,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:01:27,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:01:27,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 03:01:27,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:01:27,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 03:01:27,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:27,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:27,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:27,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:01:27,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:27,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:01:27,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:27,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:01:27,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:01:27,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:01:27,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:01:27,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 03:01:27,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:27,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:27,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:27,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:01:27,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:27,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:01:27,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:27,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:01:27,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:01:27,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:01:27,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:01:27,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 03:01:27,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:27,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:27,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:27,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:01:27,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:27,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:01:27,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:27,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:01:27,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:01:27,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:01:27,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:01:27,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 03:01:27,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:27,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:27,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:27,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:01:27,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:27,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:01:27,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:27,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:01:27,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:01:27,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:01:27,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:01:27,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 03:01:27,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:27,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:27,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:27,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:01:27,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:27,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:01:27,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:27,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:01:27,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:01:27,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:01:27,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:01:27,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 03:01:27,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:27,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:27,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:27,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:27,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:01:27,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:01:27,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:01:27,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:27,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:01:27,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:01:27,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:01:27,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:01:27,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 03:01:27,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:27,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:27,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:27,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:01:27,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:27,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:01:27,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:27,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:01:27,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:01:27,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:01:27,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:01:27,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 03:01:27,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:27,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:27,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:27,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:01:27,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:27,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:01:27,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:27,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:01:27,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:01:27,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:01:27,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:01:27,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:01:27,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1427344251] [2020-09-25 03:01:27,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:01:27,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 03:01:27,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445879339] [2020-09-25 03:01:27,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 03:01:27,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:01:27,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 03:01:27,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:01:27,913 INFO L87 Difference]: Start difference. First operand 397 states and 432 transitions. Second operand 11 states. [2020-09-25 03:01:28,445 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 03:01:29,690 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:01:30,007 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:01:30,335 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:01:30,669 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:01:30,965 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:01:31,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:01:31,421 INFO L93 Difference]: Finished difference Result 471 states and 535 transitions. [2020-09-25 03:01:31,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 03:01:31,422 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 166 [2020-09-25 03:01:31,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:01:31,423 INFO L225 Difference]: With dead ends: 471 [2020-09-25 03:01:31,424 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 03:01:31,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-09-25 03:01:31,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 03:01:31,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 03:01:31,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 03:01:31,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 03:01:31,427 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 166 [2020-09-25 03:01:31,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:01:31,427 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 03:01:31,427 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 03:01:31,427 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 03:01:31,428 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 03:01:31,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:01:31,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 03:01:31,671 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:01:31,836 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:01:32,014 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:01:32,181 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:01:32,430 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 19 [2020-09-25 03:01:32,592 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:01:32,937 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 03:01:33,277 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 03:01:33,608 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 03:01:33,952 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 03:01:34,295 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 03:01:34,461 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:01:34,624 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:01:34,800 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:01:34,962 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:01:35,136 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 17 [2020-09-25 03:01:35,298 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:01:35,452 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:01:35,618 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:01:35,777 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:01:35,929 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:01:36,092 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:01:36,244 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:01:36,399 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:01:36,553 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:01:36,714 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:01:36,873 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:01:37,031 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:01:37,189 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:01:37,348 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:01:37,514 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:01:37,688 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:01:37,848 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:01:38,001 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:01:38,164 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:01:38,337 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 21 [2020-09-25 03:01:38,495 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:01:38,650 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 188