/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=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:19:24,209 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:19:24,213 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:19:24,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:19:24,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:19:24,264 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:19:24,266 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:19:24,269 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:19:24,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:19:24,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:19:24,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:19:24,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:19:24,277 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:19:24,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:19:24,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:19:24,285 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:19:24,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:19:24,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:19:24,289 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:19:24,299 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:19:24,301 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:19:24,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:19:24,303 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:19:24,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:19:24,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:19:24,314 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:19:24,314 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:19:24,317 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:19:24,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:19:24,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:19:24,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:19:24,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:19:24,321 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:19:24,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:19:24,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:19:24,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:19:24,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:19:24,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:19:24,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:19:24,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:19:24,325 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:19:24,326 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 21:19:24,350 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:19:24,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:19:24,353 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:19:24,353 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:19:24,354 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:19:24,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:19:24,354 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:19:24,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:19:24,355 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:19:24,355 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:19:24,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:19:24,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:19:24,355 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:19:24,355 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:19:24,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:19:24,356 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:19:24,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:19:24,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:19:24,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:19:24,357 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:19:24,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:19:24,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:19:24,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:19:24,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:19:24,358 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:19:24,358 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:19:24,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:19:24,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:19:24,358 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:19:24,359 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:19:24,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:19:24,807 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:19:24,811 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:19:24,813 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:19:24,813 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:19:24,814 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product39.cil.c [2020-09-24 21:19:24,885 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5227c93df/9f19b5e9b89841908598519eb5b6e70a/FLAGfe1fa4790 [2020-09-24 21:19:25,454 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:19:25,455 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product39.cil.c [2020-09-24 21:19:25,475 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5227c93df/9f19b5e9b89841908598519eb5b6e70a/FLAGfe1fa4790 [2020-09-24 21:19:25,710 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5227c93df/9f19b5e9b89841908598519eb5b6e70a [2020-09-24 21:19:25,722 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:19:25,729 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:19:25,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:19:25,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:19:25,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:19:25,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:19:25" (1/1) ... [2020-09-24 21:19:25,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be095dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:25, skipping insertion in model container [2020-09-24 21:19:25,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:19:25" (1/1) ... [2020-09-24 21:19:25,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:19:25,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:19:26,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:19:26,346 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:19:26,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:19:26,475 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:19:26,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:26 WrapperNode [2020-09-24 21:19:26,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:19:26,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:19:26,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:19:26,477 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:19:26,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:26" (1/1) ... [2020-09-24 21:19:26,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:26" (1/1) ... [2020-09-24 21:19:26,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:26" (1/1) ... [2020-09-24 21:19:26,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:26" (1/1) ... [2020-09-24 21:19:26,561 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:26" (1/1) ... [2020-09-24 21:19:26,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:26" (1/1) ... [2020-09-24 21:19:26,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:26" (1/1) ... [2020-09-24 21:19:26,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:19:26,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:19:26,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:19:26,602 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:19:26,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:26" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:19:26,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:19:26,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:19:26,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:19:26,692 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:19:26,693 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:19:26,693 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:19:26,693 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:19:26,693 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:19:26,693 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:19:26,694 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:19:26,694 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:19:26,694 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:19:26,694 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:19:26,694 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:19:26,694 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:19:26,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 21:19:26,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 21:19:26,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:19:26,695 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:19:26,696 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:19:26,696 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:19:26,696 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:19:26,696 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:19:26,696 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:19:26,697 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:19:26,697 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:19:26,697 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:19:26,697 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:19:26,697 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:19:26,697 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 21:19:26,698 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:19:26,698 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:19:26,698 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:19:26,698 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:19:26,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:19:26,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:19:26,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:19:26,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:19:26,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:19:26,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:19:26,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:19:26,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:19:26,700 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:19:26,700 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:19:26,700 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:19:26,700 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:19:26,700 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:19:26,700 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:19:26,700 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:19:26,701 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:19:26,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:19:26,701 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:19:26,701 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:19:26,701 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:19:26,702 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:19:26,702 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:19:26,702 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 21:19:26,702 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:19:26,702 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:19:26,702 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:19:26,703 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:19:26,703 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:19:26,703 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:19:26,703 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:19:26,703 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:19:26,703 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 21:19:26,703 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 21:19:26,704 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:19:26,704 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:19:26,704 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:19:26,704 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:19:26,704 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:19:26,704 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:19:26,705 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:19:26,705 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:19:26,705 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:19:26,705 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:19:26,705 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:19:26,705 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:19:26,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:19:26,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:19:26,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:19:26,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:19:26,706 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:19:26,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:19:26,707 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:19:26,707 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:19:26,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:19:26,707 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:19:26,707 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:19:26,707 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:19:26,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:19:26,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:19:26,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:19:27,789 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:19:27,790 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:19:27,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:19:27 BoogieIcfgContainer [2020-09-24 21:19:27,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:19:27,799 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:19:27,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:19:27,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:19:27,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:19:25" (1/3) ... [2020-09-24 21:19:27,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18f4ddfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:19:27, skipping insertion in model container [2020-09-24 21:19:27,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:19:26" (2/3) ... [2020-09-24 21:19:27,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18f4ddfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:19:27, skipping insertion in model container [2020-09-24 21:19:27,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:19:27" (3/3) ... [2020-09-24 21:19:27,806 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product39.cil.c [2020-09-24 21:19:27,817 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:19:27,828 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:19:27,850 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:19:27,882 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:19:27,882 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:19:27,882 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:19:27,882 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:19:27,883 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:19:27,883 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:19:27,883 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:19:27,883 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:19:27,911 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states. [2020-09-24 21:19:27,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 21:19:27,930 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:19:27,931 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:19:27,932 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:19:27,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:19:27,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1902377435, now seen corresponding path program 1 times [2020-09-24 21:19:27,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:19:27,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [652986907] [2020-09-24 21:19:27,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:19:28,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:28,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:28,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:30,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:31,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:31,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:33,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:33,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 21:19:33,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:19:33,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-24 21:19:33,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:33,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:19:33,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 21:19:33,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 21:19:33,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:19:33,825 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:19:33,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:19:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:33,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:34,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:34,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:19:34,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:34,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-09-24 21:19:34,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:34,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:34,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:34,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 21:19:34,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:34,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:19:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:34,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:34,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:34,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:34,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:34,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:19:34,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:34,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:34,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:34,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:34,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:34,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:19:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:34,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:34,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:34,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:34,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:34,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:19:34,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:34,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:34,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:34,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:34,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:34,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:19:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:34,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:34,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:34,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:34,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:34,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:19:34,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:34,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:34,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:34,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:19:34,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:34,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:19:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:34,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:34,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:34,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:34,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:34,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:19:34,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:34,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:34,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:34,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:34,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:34,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:19:34,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:34,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:34,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:34,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:19:34,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:34,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:19:34,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:34,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:34,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:34,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:19:34,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:34,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:19:34,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:34,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:34,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:34,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:34,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:34,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:19:34,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:34,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:19:34,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:34,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:19:34,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:34,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 21:19:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:34,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:34,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:34,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:34,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:34,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:19:34,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:34,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:34,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:19:34,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:34,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:34,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:19:34,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [652986907] [2020-09-24 21:19:34,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:19:34,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 21:19:34,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230450940] [2020-09-24 21:19:34,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:19:34,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:19:34,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:19:34,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:19:34,443 INFO L87 Difference]: Start difference. First operand 316 states. Second operand 9 states. [2020-09-24 21:19:35,044 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:19:36,070 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:36,387 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:36,707 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:37,047 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:37,348 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:38,020 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:19:38,363 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:38,900 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:40,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:19:40,052 INFO L93 Difference]: Finished difference Result 663 states and 807 transitions. [2020-09-24 21:19:40,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 21:19:40,057 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-24 21:19:40,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:19:40,093 INFO L225 Difference]: With dead ends: 663 [2020-09-24 21:19:40,093 INFO L226 Difference]: Without dead ends: 460 [2020-09-24 21:19:40,100 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-24 21:19:40,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2020-09-24 21:19:40,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 387. [2020-09-24 21:19:40,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2020-09-24 21:19:40,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 432 transitions. [2020-09-24 21:19:40,241 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 432 transitions. Word has length 148 [2020-09-24 21:19:40,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:19:40,242 INFO L479 AbstractCegarLoop]: Abstraction has 387 states and 432 transitions. [2020-09-24 21:19:40,242 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 21:19:40,242 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 432 transitions. [2020-09-24 21:19:40,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 21:19:40,248 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:19:40,248 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] [2020-09-24 21:19:40,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:19:40,249 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:19:40,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:19:40,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1595258182, now seen corresponding path program 1 times [2020-09-24 21:19:40,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:19:40,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [679124933] [2020-09-24 21:19:40,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:19:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:40,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:40,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:41,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:42,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:45,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:45,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-24 21:19:45,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:19:45,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 21:19:45,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:45,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 21:19:45,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 21:19:45,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-24 21:19:45,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:45,669 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:19:45,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:19:45,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:45,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:45,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:45,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:19:45,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:45,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-09-24 21:19:45,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:45,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:45,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:45,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 21:19:45,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:46,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:19:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:46,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:46,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:46,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:46,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:46,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:19:46,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:46,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:46,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:46,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:46,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:46,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:19:46,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:46,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:46,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:46,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:46,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:46,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:19:46,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:46,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:46,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:46,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:46,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:46,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:19:46,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:46,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:46,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:46,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:46,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:46,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:19:46,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:46,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:46,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:46,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:19:46,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:46,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:19:46,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:46,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:46,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:46,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:46,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:46,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:19:46,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:46,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:46,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:46,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:46,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:46,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:19:46,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:46,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:46,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:46,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:19:46,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:46,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:19:46,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:46,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:46,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:46,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:19:46,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:46,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:19:46,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:46,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:46,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:46,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:19:46,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:46,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:19:46,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:46,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:46,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:46,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:19:46,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:46,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 21:19:46,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:46,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:46,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:46,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:46,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:46,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:19:46,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:46,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:46,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:46,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:19:46,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:46,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 21:19:46,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:46,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:46,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:46,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:46,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:46,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:19:46,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:46,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:19:46,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:46,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:19:46,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:46,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:19:46,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [679124933] [2020-09-24 21:19:46,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:19:46,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 21:19:46,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097126762] [2020-09-24 21:19:46,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:19:46,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:19:46,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:19:46,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:19:46,311 INFO L87 Difference]: Start difference. First operand 387 states and 432 transitions. Second operand 10 states. [2020-09-24 21:19:46,802 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:19:48,343 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-09-24 21:19:48,958 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 194 [2020-09-24 21:19:49,308 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:49,633 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:49,951 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:50,749 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:51,046 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 21:19:51,389 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:19:52,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:19:52,957 INFO L93 Difference]: Finished difference Result 951 states and 1188 transitions. [2020-09-24 21:19:52,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-24 21:19:52,960 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2020-09-24 21:19:52,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:19:52,969 INFO L225 Difference]: With dead ends: 951 [2020-09-24 21:19:52,969 INFO L226 Difference]: Without dead ends: 679 [2020-09-24 21:19:52,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 21 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=200, Invalid=612, Unknown=0, NotChecked=0, Total=812 [2020-09-24 21:19:52,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2020-09-24 21:19:53,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 560. [2020-09-24 21:19:53,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-09-24 21:19:53,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 645 transitions. [2020-09-24 21:19:53,066 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 645 transitions. Word has length 163 [2020-09-24 21:19:53,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:19:53,067 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 645 transitions. [2020-09-24 21:19:53,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 21:19:53,067 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 645 transitions. [2020-09-24 21:19:53,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-24 21:19:53,071 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:19:53,071 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:19:53,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:19:53,072 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:19:53,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:19:53,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1300660200, now seen corresponding path program 1 times [2020-09-24 21:19:53,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:19:53,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [758466806] [2020-09-24 21:19:53,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:19:53,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:53,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:53,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:56,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:56,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-09-24 21:19:56,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:19:56,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3387 [2020-09-24 21:19:56,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:56,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:19:56,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-24 21:19:56,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-24 21:19:56,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:56,789 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:19:56,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:19:56,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:56,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:56,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:56,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:19:56,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:56,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 21:19:56,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:56,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:56,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:56,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:56,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:56,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:19:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:56,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:56,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:56,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:56,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:56,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:19:56,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:56,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:56,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:56,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:56,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:56,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:19:56,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:56,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:56,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:56,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:56,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:56,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:19:56,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:56,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:56,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:56,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:56,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:56,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:19:56,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:56,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:56,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:56,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:56,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:56,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:19:56,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:56,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:56,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:56,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:56,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:56,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:19:56,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:56,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:56,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:56,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:56,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:56,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:19:56,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:56,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:56,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:56,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:56,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:56,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:19:56,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:56,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:56,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:56,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:19:56,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:56,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:19:56,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:56,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:56,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:56,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 21:19:56,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:57,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:19:57,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:57,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:57,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:57,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:19:57,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:57,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:19:57,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:57,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:57,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:57,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:19:57,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:57,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 21:19:57,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:57,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:57,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:57,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:57,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 21:19:57,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:19:57,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 21:19:57,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:57,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:57,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:57,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-24 21:19:57,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:57,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:19:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:57,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:57,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:57,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:57,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:19:57,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:19:57,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 21:19:57,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:57,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:57,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:57,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:57,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:57,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:19:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:57,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:57,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:57,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:57,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:19:57,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:19:57,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 21:19:57,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:57,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:57,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:57,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:57,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:57,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:19:57,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:57,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:57,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:57,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:19:57,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:57,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:19:57,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:57,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:57,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:57,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:57,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:57,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:19:57,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:57,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:57,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:57,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:19:57,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:57,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:19:57,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:57,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:57,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:57,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:57,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:57,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 21:19:57,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:57,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:57,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:57,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:57,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:57,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:19:57,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:57,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:57,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:57,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:19:57,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:57,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 21:19:57,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:57,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:57,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:57,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:57,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:57,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:19:57,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:57,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:57,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:57,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:19:57,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:57,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:19:57,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [758466806] [2020-09-24 21:19:57,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:19:57,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 21:19:57,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811264857] [2020-09-24 21:19:57,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:19:57,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:19:57,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:19:57,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:19:57,401 INFO L87 Difference]: Start difference. First operand 560 states and 645 transitions. Second operand 7 states. [2020-09-24 21:19:58,096 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:20:01,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:20:01,000 INFO L93 Difference]: Finished difference Result 1266 states and 1659 transitions. [2020-09-24 21:20:01,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 21:20:01,001 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 201 [2020-09-24 21:20:01,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:20:01,016 INFO L225 Difference]: With dead ends: 1266 [2020-09-24 21:20:01,016 INFO L226 Difference]: Without dead ends: 1263 [2020-09-24 21:20:01,017 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-09-24 21:20:01,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1263 states. [2020-09-24 21:20:01,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1263 to 918. [2020-09-24 21:20:01,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 918 states. [2020-09-24 21:20:01,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1082 transitions. [2020-09-24 21:20:01,200 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1082 transitions. Word has length 201 [2020-09-24 21:20:01,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:20:01,201 INFO L479 AbstractCegarLoop]: Abstraction has 918 states and 1082 transitions. [2020-09-24 21:20:01,201 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:20:01,201 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1082 transitions. [2020-09-24 21:20:01,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2020-09-24 21:20:01,207 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:20:01,207 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:20:01,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:20:01,208 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:20:01,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:20:01,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1859888194, now seen corresponding path program 1 times [2020-09-24 21:20:01,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:20:01,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [630713294] [2020-09-24 21:20:01,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:20:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:01,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:01,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:01,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:01,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:01,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:02,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:04,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:06,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:06,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 328 [2020-09-24 21:20:06,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 21:20:06,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-09-24 21:20:06,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:06,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:20:06,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 21:20:06,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-24 21:20:06,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:06,598 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:20:06,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:20:06,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:06,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:06,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:06,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:20:06,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:06,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-09-24 21:20:06,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:06,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:06,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:06,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 21:20:06,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:06,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:20:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:06,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:06,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:06,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:06,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:06,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:06,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:06,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:06,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:06,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:06,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:06,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:20:06,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:06,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:06,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:06,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:06,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:06,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:06,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:06,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:06,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:06,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:06,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:06,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:20:06,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:06,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:06,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:06,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:06,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:06,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:20:06,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:06,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:06,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:06,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:20:06,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:06,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:20:06,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:06,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:06,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:06,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:20:06,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:06,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:06,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:06,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:06,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:06,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:20:06,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:06,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:20:06,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:06,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:06,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:06,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:20:06,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:06,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:06,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:06,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:06,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:06,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:20:06,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:06,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:20:06,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:06,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:06,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:06,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:20:06,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:06,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:20:06,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:06,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:06,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:06,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:20:06,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:06,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 21:20:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:06,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:06,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:06,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 21:20:06,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:06,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:20:06,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:06,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:06,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 21:20:06,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 21:20:06,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:06,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:20:06,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:06,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:06,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:06,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 21:20:06,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:06,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:20:06,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:06,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:20:06,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:06,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 21:20:06,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:06,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:20:06,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:06,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:06,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:06,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:06,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:06,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:20:06,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:06,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:06,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:06,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:06,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:06,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 21:20:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:06,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:06,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:07,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:07,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 21:20:07,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:20:07,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-24 21:20:07,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:07,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:20:07,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 21:20:07,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:20:07,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:07,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:20:07,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:07,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:07,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:07,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 21:20:07,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:07,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 21:20:07,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:07,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:20:07,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 21:20:07,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:20:07,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:07,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:20:07,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:07,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:07,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:07,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:20:07,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:07,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 21:20:07,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:07,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:20:07,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 21:20:07,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:20:07,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:07,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:20:07,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:07,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:07,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:07,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:20:07,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:07,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 21:20:07,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:07,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:20:07,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:20:07,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:20:07,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:07,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:20:07,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:07,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:07,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:07,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:20:07,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:07,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:20:07,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:07,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:20:07,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:07,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:20:07,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:07,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:20:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:07,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:07,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:07,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:20:07,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:07,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:07,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:07,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:07,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 21:20:07,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:07,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:07,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-24 21:20:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:07,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:07,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:07,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 21:20:07,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:07,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:20:07,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:07,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:07,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-24 21:20:07,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:07,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:07,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:20:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:07,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:07,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:07,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:07,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:07,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:20:07,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:07,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:07,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:07,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:07,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:07,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 21:20:07,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:07,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:07,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:07,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:07,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:07,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:20:07,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:07,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:07,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:20:07,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:07,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:07,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-09-24 21:20:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:07,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:07,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:07,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:20:07,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:07,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:20:07,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:07,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:07,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 21:20:07,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:07,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:07,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-09-24 21:20:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:07,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:07,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:07,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:07,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:07,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:20:07,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:07,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:07,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:20:07,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:07,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:07,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2020-09-24 21:20:07,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:20:07,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:20:07,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:20:07,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:20:07,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:20:07,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:20:07,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:20:07,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:20:07,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:20:07,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:20:07,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:20:07,402 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-09-24 21:20:07,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [630713294] [2020-09-24 21:20:07,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:20:07,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-24 21:20:07,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47327383] [2020-09-24 21:20:07,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 21:20:07,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:20:07,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 21:20:07,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2020-09-24 21:20:07,405 INFO L87 Difference]: Start difference. First operand 918 states and 1082 transitions. Second operand 15 states. [2020-09-24 21:20:07,992 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:20:09,091 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:20:09,563 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:20:09,885 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:20:10,227 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:20:10,619 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:20:10,925 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:20:11,288 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:20:11,625 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:20:11,987 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:20:12,336 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:20:12,644 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 192