/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product53.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:43:49,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:43:49,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:43:49,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:43:49,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:43:49,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:43:49,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:43:49,410 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:43:49,411 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:43:49,412 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:43:49,413 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:43:49,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:43:49,415 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:43:49,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:43:49,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:43:49,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:43:49,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:43:49,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:43:49,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:43:49,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:43:49,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:43:49,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:43:49,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:43:49,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:43:49,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:43:49,430 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:43:49,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:43:49,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:43:49,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:43:49,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:43:49,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:43:49,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:43:49,435 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:43:49,436 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:43:49,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:43:49,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:43:49,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:43:49,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:43:49,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:43:49,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:43:49,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:43:49,442 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 00:43:49,466 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:43:49,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:43:49,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:43:49,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:43:49,468 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:43:49,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:43:49,469 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:43:49,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:43:49,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:43:49,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:43:49,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:43:49,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:43:49,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:43:49,470 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:43:49,470 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:43:49,470 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:43:49,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:43:49,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:43:49,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:43:49,471 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:43:49,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:43:49,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:43:49,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:43:49,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:43:49,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:43:49,473 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:43:49,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:43:49,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:43:49,473 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:43:49,473 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; [2020-09-25 00:43:49,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:43:49,960 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:43:49,965 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:43:49,967 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:43:49,969 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:43:49,970 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product53.cil.c [2020-09-25 00:43:50,056 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6eea24632/6f53d169eb42434e911925c8e580770f/FLAG294de5673 [2020-09-25 00:43:50,636 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:43:50,637 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product53.cil.c [2020-09-25 00:43:50,652 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6eea24632/6f53d169eb42434e911925c8e580770f/FLAG294de5673 [2020-09-25 00:43:50,909 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6eea24632/6f53d169eb42434e911925c8e580770f [2020-09-25 00:43:50,921 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:43:50,926 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:43:50,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:43:50,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:43:50,932 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:43:50,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:43:50" (1/1) ... [2020-09-25 00:43:50,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc9c326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:43:50, skipping insertion in model container [2020-09-25 00:43:50,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:43:50" (1/1) ... [2020-09-25 00:43:50,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:43:50,994 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:43:51,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:43:51,494 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:43:51,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:43:51,642 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:43:51,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:43:51 WrapperNode [2020-09-25 00:43:51,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:43:51,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:43:51,644 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:43:51,644 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:43:51,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:43:51" (1/1) ... [2020-09-25 00:43:51,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:43:51" (1/1) ... [2020-09-25 00:43:51,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:43:51" (1/1) ... [2020-09-25 00:43:51,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:43:51" (1/1) ... [2020-09-25 00:43:51,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:43:51" (1/1) ... [2020-09-25 00:43:51,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:43:51" (1/1) ... [2020-09-25 00:43:51,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:43:51" (1/1) ... [2020-09-25 00:43:51,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:43:51,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:43:51,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:43:51,749 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:43:51,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:43:51" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:43:51,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:43:51,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:43:51,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:43:51,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:43:51,827 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:43:51,827 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:43:51,827 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:43:51,827 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:43:51,827 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:43:51,828 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:43:51,828 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 00:43:51,828 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:43:51,828 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 00:43:51,828 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:43:51,829 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:43:51,829 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:43:51,829 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:43:51,829 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:43:51,829 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:43:51,830 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 00:43:51,830 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 00:43:51,830 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:43:51,830 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:43:51,830 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:43:51,831 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:43:51,831 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:43:51,831 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:43:51,831 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 00:43:51,831 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 00:43:51,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 00:43:51,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:43:51,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:43:51,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:43:51,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:43:51,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:43:51,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:43:51,833 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:43:51,833 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:43:51,833 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:43:51,833 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:43:51,833 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:43:51,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:43:51,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:43:51,834 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:43:51,834 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:43:51,834 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:43:51,834 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:43:51,835 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:43:51,835 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:43:51,835 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:43:51,835 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:43:51,835 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:43:51,835 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:43:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:43:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:43:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:43:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:43:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 00:43:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 00:43:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:43:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:43:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:43:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:43:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 00:43:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:43:51,838 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 00:43:51,838 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 00:43:51,838 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:43:51,838 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 00:43:51,838 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 00:43:51,838 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:43:51,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:43:51,839 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:43:51,839 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:43:51,839 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:43:51,839 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:43:51,839 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:43:51,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:43:51,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:43:51,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:43:51,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:43:51,840 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:43:51,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:43:51,841 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:43:51,841 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:43:51,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:43:51,841 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:43:51,841 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:43:51,841 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:43:51,842 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:43:51,842 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:43:51,842 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:43:51,842 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:43:51,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:43:51,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:43:51,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:43:52,961 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:43:52,961 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:43:52,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:43:52 BoogieIcfgContainer [2020-09-25 00:43:52,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:43:52,970 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:43:52,971 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:43:52,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:43:52,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:43:50" (1/3) ... [2020-09-25 00:43:52,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@238b79d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:43:52, skipping insertion in model container [2020-09-25 00:43:52,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:43:51" (2/3) ... [2020-09-25 00:43:52,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@238b79d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:43:52, skipping insertion in model container [2020-09-25 00:43:52,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:43:52" (3/3) ... [2020-09-25 00:43:52,979 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product53.cil.c [2020-09-25 00:43:52,990 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:43:53,001 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:43:53,023 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:43:53,062 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:43:53,063 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:43:53,063 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:43:53,063 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:43:53,063 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:43:53,063 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:43:53,064 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:43:53,065 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:43:53,104 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states. [2020-09-25 00:43:53,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 00:43:53,126 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:43:53,128 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] [2020-09-25 00:43:53,128 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:43:53,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:43:53,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1143611039, now seen corresponding path program 1 times [2020-09-25 00:43:53,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:43:53,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [653659591] [2020-09-25 00:43:53,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:43:53,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:53,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:53,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:54,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:57,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:57,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 00:43:57,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:43:57,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4194 [2020-09-25 00:43:57,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:57,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:57,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 00:43:57,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:57,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 00:43:58,229 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:43:58,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:43:58,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:58,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:58,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:58,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:43:58,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:58,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 00:43:58,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:58,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:58,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:58,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:58,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:58,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:43:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:58,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:58,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:58,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:58,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:58,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:58,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:58,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:58,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:58,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:58,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:58,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:43:58,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:58,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:58,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:58,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:58,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:58,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:58,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:58,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:58,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:58,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:58,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:58,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:43:58,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:58,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:58,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:58,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:58,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:58,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:43:58,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:58,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:58,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:58,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:58,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:58,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:43:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:58,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:58,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:58,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:58,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:58,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:58,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:58,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:58,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:58,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:58,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:58,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 00:43:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:58,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:58,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:58,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:58,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:58,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:58,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:58,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:58,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:58,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:58,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:58,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 00:43:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:58,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:58,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:58,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:58,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:58,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:58,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:58,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:58,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:58,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:58,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:58,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 00:43:58,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:58,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:58,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:58,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:58,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:58,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:58,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:58,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:58,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:58,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:58,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:58,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:43:58,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [653659591] [2020-09-25 00:43:58,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:43:58,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:43:58,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469764990] [2020-09-25 00:43:58,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:43:58,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:43:58,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:43:58,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:43:58,519 INFO L87 Difference]: Start difference. First operand 343 states. Second operand 3 states. [2020-09-25 00:44:00,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:44:00,174 INFO L93 Difference]: Finished difference Result 553 states and 657 transitions. [2020-09-25 00:44:00,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:44:00,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 00:44:00,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:44:00,198 INFO L225 Difference]: With dead ends: 553 [2020-09-25 00:44:00,198 INFO L226 Difference]: Without dead ends: 335 [2020-09-25 00:44:00,204 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:44:00,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2020-09-25 00:44:00,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 292. [2020-09-25 00:44:00,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-09-25 00:44:00,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 320 transitions. [2020-09-25 00:44:00,319 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 320 transitions. Word has length 153 [2020-09-25 00:44:00,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:44:00,320 INFO L479 AbstractCegarLoop]: Abstraction has 292 states and 320 transitions. [2020-09-25 00:44:00,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:44:00,320 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 320 transitions. [2020-09-25 00:44:00,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 00:44:00,325 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:44:00,326 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] [2020-09-25 00:44:00,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:44:00,326 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:44:00,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:44:00,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1149932277, now seen corresponding path program 1 times [2020-09-25 00:44:00,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:44:00,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2085801308] [2020-09-25 00:44:00,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:44:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:00,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:00,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:00,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:05,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:05,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 00:44:05,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:44:05,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4754 [2020-09-25 00:44:05,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:05,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:05,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 00:44:05,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 00:44:05,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:05,442 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:44:05,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:44:05,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:05,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:05,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:05,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:44:05,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:05,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 00:44:05,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:05,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:05,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:05,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:05,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:05,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:44:05,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:05,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:05,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:05,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:05,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:05,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:44:05,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:05,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:05,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:05,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:05,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:05,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:44:05,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:05,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:05,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:05,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:05,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:05,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:44:05,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:05,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:05,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:05,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:05,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:05,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:44:05,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:05,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:05,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:05,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:05,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:05,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:05,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:05,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:05,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:05,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:05,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:05,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:44:05,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:05,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:05,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:05,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:05,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:05,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:44:05,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:05,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:05,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:05,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:05,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:05,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 00:44:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:05,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:05,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:05,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:05,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:05,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:05,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:05,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:05,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:05,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:05,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:05,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 00:44:05,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:05,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:05,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:05,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:05,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:05,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:05,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:05,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:05,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:05,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:05,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:05,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 00:44:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:05,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:05,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:05,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:05,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:05,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:05,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:05,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:05,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:05,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:05,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:05,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:44:05,655 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2085801308] [2020-09-25 00:44:05,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:44:05,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 00:44:05,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983846210] [2020-09-25 00:44:05,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 00:44:05,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:44:05,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 00:44:05,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:44:05,659 INFO L87 Difference]: Start difference. First operand 292 states and 320 transitions. Second operand 4 states. [2020-09-25 00:44:06,230 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:44:07,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:44:07,409 INFO L93 Difference]: Finished difference Result 470 states and 532 transitions. [2020-09-25 00:44:07,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:44:07,410 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 00:44:07,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:44:07,414 INFO L225 Difference]: With dead ends: 470 [2020-09-25 00:44:07,415 INFO L226 Difference]: Without dead ends: 318 [2020-09-25 00:44:07,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:44:07,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-09-25 00:44:07,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 282. [2020-09-25 00:44:07,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-09-25 00:44:07,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 307 transitions. [2020-09-25 00:44:07,467 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 307 transitions. Word has length 154 [2020-09-25 00:44:07,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:44:07,468 INFO L479 AbstractCegarLoop]: Abstraction has 282 states and 307 transitions. [2020-09-25 00:44:07,468 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 00:44:07,468 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 307 transitions. [2020-09-25 00:44:07,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 00:44:07,471 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:44:07,471 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] [2020-09-25 00:44:07,471 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:44:07,471 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:44:07,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:44:07,472 INFO L82 PathProgramCache]: Analyzing trace with hash -683065315, now seen corresponding path program 1 times [2020-09-25 00:44:07,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:44:07,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1600031623] [2020-09-25 00:44:07,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:44:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:07,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:07,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:10,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:10,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 00:44:10,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:44:10,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2994 [2020-09-25 00:44:10,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:10,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 00:44:10,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 00:44:10,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-09-25 00:44:10,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:10,937 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:44:10,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:44:10,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:11,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:11,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:11,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:44:11,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:11,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-25 00:44:11,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:11,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:11,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:11,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 00:44:11,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:11,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:44:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:11,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:11,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:11,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:11,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:11,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:11,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:11,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:11,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:11,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:44:11,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:11,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:44:11,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:11,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:11,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:11,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:11,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:11,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:11,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:11,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:11,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:11,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:44:11,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:44:11,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:44:11,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:11,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:11,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:11,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:11,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:11,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:44:11,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:11,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:11,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:11,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:44:11,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:11,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:44:11,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:11,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:11,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:11,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:11,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:11,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:11,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:11,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:11,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:11,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:44:11,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:11,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 00:44:11,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:11,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:11,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:11,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:11,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:11,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:44:11,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:11,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:11,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:11,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:44:11,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:11,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 00:44:11,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:11,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:11,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:11,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:11,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:11,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 00:44:11,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:11,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:44:11,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:11,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:44:11,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:11,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 00:44:11,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:11,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:11,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:11,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:11,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:11,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:11,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:11,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:11,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:11,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:11,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:11,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:44:11,511 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1600031623] [2020-09-25 00:44:11,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:44:11,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:44:11,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108762407] [2020-09-25 00:44:11,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:44:11,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:44:11,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:44:11,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:44:11,516 INFO L87 Difference]: Start difference. First operand 282 states and 307 transitions. Second operand 9 states. [2020-09-25 00:44:11,949 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:44:13,870 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 00:44:14,493 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 00:44:14,897 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:44:15,368 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:44:15,688 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:44:16,032 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:44:16,330 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:44:16,940 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:44:18,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:44:18,094 INFO L93 Difference]: Finished difference Result 657 states and 787 transitions. [2020-09-25 00:44:18,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 00:44:18,094 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-09-25 00:44:18,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:44:18,100 INFO L225 Difference]: With dead ends: 657 [2020-09-25 00:44:18,100 INFO L226 Difference]: Without dead ends: 485 [2020-09-25 00:44:18,103 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2020-09-25 00:44:18,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2020-09-25 00:44:18,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 438. [2020-09-25 00:44:18,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 438 states. [2020-09-25 00:44:18,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 495 transitions. [2020-09-25 00:44:18,166 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 495 transitions. Word has length 163 [2020-09-25 00:44:18,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:44:18,167 INFO L479 AbstractCegarLoop]: Abstraction has 438 states and 495 transitions. [2020-09-25 00:44:18,167 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:44:18,168 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 495 transitions. [2020-09-25 00:44:18,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-25 00:44:18,170 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:44:18,171 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] [2020-09-25 00:44:18,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:44:18,171 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:44:18,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:44:18,172 INFO L82 PathProgramCache]: Analyzing trace with hash -799313326, now seen corresponding path program 1 times [2020-09-25 00:44:18,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:44:18,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [112860019] [2020-09-25 00:44:18,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:44:18,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:18,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:18,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:18,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 00:44:18,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:18,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-09-25 00:44:18,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:18,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:18,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 00:44:18,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 00:44:18,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:18,857 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:44:18,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:44:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:18,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:19,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:19,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:44:19,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:19,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-09-25 00:44:19,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:19,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:19,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:19,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 00:44:19,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:19,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:44:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:19,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:19,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:19,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:19,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:19,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:19,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:19,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:19,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:19,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:44:19,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:19,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:44:19,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:19,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:19,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:19,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:19,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:19,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:19,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:19,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:19,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:19,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:44:19,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:19,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:44:19,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:19,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:19,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:19,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:19,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:19,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:44:19,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:19,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:19,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:19,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:44:19,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:19,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:44:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:19,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:19,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:19,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:19,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:19,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:19,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:19,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:19,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:19,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:44:19,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:19,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 00:44:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:19,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:19,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:19,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:44:19,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:19,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:44:19,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:19,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:19,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:19,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:44:19,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:19,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 00:44:19,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:19,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:19,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:19,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:19,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:19,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:19,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:19,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:19,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:19,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:19,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:19,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-25 00:44:19,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:19,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:19,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:19,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:19,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:19,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:19,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:19,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:19,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:19,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:19,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:19,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 00:44:19,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:19,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:19,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:19,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:19,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:19,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:19,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:19,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:19,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:19,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:19,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:19,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:44:19,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [112860019] [2020-09-25 00:44:19,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:44:19,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:44:19,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671659085] [2020-09-25 00:44:19,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:44:19,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:44:19,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:44:19,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:44:19,365 INFO L87 Difference]: Start difference. First operand 438 states and 495 transitions. Second operand 5 states. [2020-09-25 00:44:19,852 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:44:20,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:44:20,974 INFO L93 Difference]: Finished difference Result 836 states and 996 transitions. [2020-09-25 00:44:20,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 00:44:20,975 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-09-25 00:44:20,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:44:20,979 INFO L225 Difference]: With dead ends: 836 [2020-09-25 00:44:20,980 INFO L226 Difference]: Without dead ends: 508 [2020-09-25 00:44:20,981 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:44:20,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-09-25 00:44:21,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 438. [2020-09-25 00:44:21,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 438 states. [2020-09-25 00:44:21,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 493 transitions. [2020-09-25 00:44:21,042 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 493 transitions. Word has length 168 [2020-09-25 00:44:21,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:44:21,043 INFO L479 AbstractCegarLoop]: Abstraction has 438 states and 493 transitions. [2020-09-25 00:44:21,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:44:21,043 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 493 transitions. [2020-09-25 00:44:21,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-09-25 00:44:21,047 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:44:21,047 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] [2020-09-25 00:44:21,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:44:21,047 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:44:21,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:44:21,048 INFO L82 PathProgramCache]: Analyzing trace with hash -950227871, now seen corresponding path program 1 times [2020-09-25 00:44:21,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:44:21,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [428925732] [2020-09-25 00:44:21,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:44:21,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:21,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:21,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:21,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:21,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:24,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:26,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:26,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-09-25 00:44:26,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:44:26,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-25 00:44:26,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:26,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:44:26,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 00:44:26,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 00:44:26,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:26,502 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:44:26,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:44:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:26,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:26,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:26,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:44:26,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:26,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 00:44:26,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:26,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:26,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:26,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:26,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:26,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:44:26,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:26,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:26,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:26,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:26,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:26,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:26,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:26,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:26,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:26,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:26,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:26,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:44:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:26,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:26,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:26,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:26,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:26,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:26,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:26,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:26,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:26,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:26,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:26,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:44:26,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:26,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:26,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:26,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:26,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:26,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:26,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:26,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:26,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:26,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:26,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:26,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:44:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:26,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:26,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:26,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:26,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:26,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:26,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:26,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:26,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:26,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:26,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:26,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 00:44:26,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:26,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:26,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:26,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:44:26,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:26,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:44:26,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:26,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:26,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:26,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:26,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:26,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 00:44:26,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:26,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:26,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:26,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:26,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:26,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 00:44:26,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:44:26,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 00:44:26,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:26,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:44:26,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 00:44:26,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:44:26,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:26,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:44:26,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:26,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:26,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:26,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 00:44:26,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:26,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:44:26,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:26,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:44:26,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 00:44:26,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:44:26,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:26,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:44:26,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:26,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:26,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:26,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 00:44:26,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:26,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 00:44:26,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:26,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:44:26,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 00:44:26,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 00:44:26,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:26,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:44:26,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:26,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:26,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:26,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:26,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:26,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:26,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:26,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:26,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:26,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:44:26,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 44 [2020-09-25 00:44:26,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 00:44:26,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:26,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:26,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:26,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:26,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:26,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:26,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:26,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:26,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:26,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:44:26,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:26,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-25 00:44:26,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:26,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:26,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:26,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:26,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:26,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:26,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:26,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:26,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:26,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:44:26,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:26,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 00:44:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:26,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:26,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:26,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:26,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:26,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:44:26,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:26,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:44:26,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:26,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:44:26,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:27,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:44:27,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [428925732] [2020-09-25 00:44:27,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:44:27,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 00:44:27,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602973919] [2020-09-25 00:44:27,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 00:44:27,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:44:27,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 00:44:27,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-09-25 00:44:27,078 INFO L87 Difference]: Start difference. First operand 438 states and 493 transitions. Second operand 12 states. [2020-09-25 00:44:27,591 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:44:29,296 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 187 [2020-09-25 00:44:30,287 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:44:30,876 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 00:44:31,189 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:44:31,768 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 00:44:32,409 WARN L193 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 00:44:33,035 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-09-25 00:44:33,630 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 00:44:33,920 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:44:35,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:44:35,221 INFO L93 Difference]: Finished difference Result 1095 states and 1321 transitions. [2020-09-25 00:44:35,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-25 00:44:35,221 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 186 [2020-09-25 00:44:35,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:44:35,226 INFO L225 Difference]: With dead ends: 1095 [2020-09-25 00:44:35,226 INFO L226 Difference]: Without dead ends: 767 [2020-09-25 00:44:35,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=202, Invalid=728, Unknown=0, NotChecked=0, Total=930 [2020-09-25 00:44:35,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2020-09-25 00:44:35,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 637. [2020-09-25 00:44:35,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 637 states. [2020-09-25 00:44:35,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 705 transitions. [2020-09-25 00:44:35,328 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 705 transitions. Word has length 186 [2020-09-25 00:44:35,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:44:35,329 INFO L479 AbstractCegarLoop]: Abstraction has 637 states and 705 transitions. [2020-09-25 00:44:35,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 00:44:35,329 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 705 transitions. [2020-09-25 00:44:35,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-09-25 00:44:35,332 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:44:35,332 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:44:35,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:44:35,332 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:44:35,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:44:35,333 INFO L82 PathProgramCache]: Analyzing trace with hash -54966158, now seen corresponding path program 1 times [2020-09-25 00:44:35,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:44:35,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [870473275] [2020-09-25 00:44:35,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:44:35,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:35,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:36,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:36,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-09-25 00:44:36,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:36,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 711 [2020-09-25 00:44:36,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:36,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:44:36,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-09-25 00:44:36,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:44:36,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:36,465 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:44:36,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:44:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:36,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:36,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:36,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:44:36,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:36,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 00:44:36,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:36,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:36,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:36,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:36,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:36,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:44:36,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:36,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:36,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:36,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:36,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:36,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:44:36,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:36,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:36,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:36,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:36,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:36,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:44:36,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:36,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:36,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:36,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:36,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:36,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:44:36,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:36,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:36,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:36,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:36,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:36,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:44:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:36,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:36,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:36,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:36,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:36,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:44:36,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:36,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:36,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:36,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:36,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:36,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:44:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:36,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:36,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:36,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:36,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:36,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:36,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:36,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:36,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:36,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:36,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:36,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 00:44:36,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:36,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:36,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:36,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:44:36,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:36,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:36,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:36,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:36,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:36,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:36,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:36,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 00:44:36,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:36,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:36,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:36,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 00:44:36,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:36,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-25 00:44:36,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:36,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:44:36,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 00:44:36,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:44:36,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:36,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:44:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:36,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:36,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:36,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 00:44:36,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:36,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 00:44:36,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:36,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:44:36,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 00:44:36,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:44:36,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:36,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:44:36,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:36,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:36,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:36,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 00:44:36,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:36,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 00:44:36,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:36,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:44:36,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:44:36,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:44:36,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:36,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:44:36,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:36,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:36,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:36,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:44:36,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:36,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 00:44:36,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:36,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:44:36,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:44:36,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:44:36,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:36,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:44:36,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:36,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:36,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:36,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:44:37,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:37,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 00:44:37,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:37,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:44:37,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:37,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:44:37,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:37,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:44:37,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:37,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:37,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:37,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:37,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:37,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:37,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:37,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:37,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 00:44:37,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:37,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:37,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 00:44:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:37,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:37,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:37,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:37,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:37,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:37,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:37,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:37,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:37,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:37,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:37,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-25 00:44:37,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:37,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:37,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:37,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:37,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:37,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:37,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:37,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:37,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:37,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:37,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:37,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-25 00:44:37,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:37,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:37,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:37,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:37,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:37,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:37,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:37,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:37,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:37,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:37,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:37,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:44:37,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [870473275] [2020-09-25 00:44:37,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:44:37,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:44:37,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150657697] [2020-09-25 00:44:37,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:44:37,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:44:37,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:44:37,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:44:37,172 INFO L87 Difference]: Start difference. First operand 637 states and 705 transitions. Second operand 9 states. [2020-09-25 00:44:38,524 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:44:38,783 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 191