/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:43:40,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:43:40,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:43:40,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:43:40,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:43:40,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:43:40,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:43:40,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:43:40,928 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:43:40,935 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:43:40,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:43:40,937 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:43:40,937 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:43:40,938 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:43:40,939 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:43:40,941 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:43:40,941 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:43:40,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:43:40,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:43:40,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:43:40,950 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:43:40,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:43:40,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:43:40,955 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:43:40,957 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:43:40,958 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:43:40,958 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:43:40,959 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:43:40,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:43:40,964 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:43:40,964 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:43:40,965 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:43:40,965 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:43:40,966 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:43:40,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:43:40,977 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:43:40,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:43:40,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:43:40,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:43:40,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:43:40,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:43:40,997 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 15:43:41,022 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:43:41,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:43:41,024 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:43:41,024 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:43:41,025 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:43:41,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:43:41,025 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:43:41,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:43:41,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:43:41,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:43:41,026 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:43:41,026 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:43:41,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:43:41,026 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:43:41,027 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:43:41,027 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:43:41,027 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:43:41,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:43:41,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:43:41,028 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:43:41,028 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:43:41,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:43:41,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:43:41,029 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:43:41,032 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:43:41,032 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:43:41,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:43:41,032 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:43:41,033 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:43:41,033 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 15:43:41,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:43:41,562 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:43:41,570 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:43:41,571 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:43:41,572 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:43:41,573 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product24.cil.c [2020-09-24 15:43:41,651 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6dd195357/b763dd5e489e475a82fcd127ce61eaaf/FLAG6d4d3e989 [2020-09-24 15:43:42,280 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:43:42,282 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product24.cil.c [2020-09-24 15:43:42,297 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6dd195357/b763dd5e489e475a82fcd127ce61eaaf/FLAG6d4d3e989 [2020-09-24 15:43:42,546 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6dd195357/b763dd5e489e475a82fcd127ce61eaaf [2020-09-24 15:43:42,560 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:43:42,565 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:43:42,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:43:42,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:43:42,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:43:42,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:43:42" (1/1) ... [2020-09-24 15:43:42,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@277364e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:43:42, skipping insertion in model container [2020-09-24 15:43:42,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:43:42" (1/1) ... [2020-09-24 15:43:42,591 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:43:42,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:43:43,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:43:43,061 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:43:43,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:43:43,292 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:43:43,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:43:43 WrapperNode [2020-09-24 15:43:43,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:43:43,294 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:43:43,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:43:43,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:43:43,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:43:43" (1/1) ... [2020-09-24 15:43:43,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:43:43" (1/1) ... [2020-09-24 15:43:43,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:43:43" (1/1) ... [2020-09-24 15:43:43,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:43:43" (1/1) ... [2020-09-24 15:43:43,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:43:43" (1/1) ... [2020-09-24 15:43:43,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:43:43" (1/1) ... [2020-09-24 15:43:43,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:43:43" (1/1) ... [2020-09-24 15:43:43,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:43:43,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:43:43,390 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:43:43,390 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:43:43,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:43:43" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:43:43,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:43:43,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:43:43,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 15:43:43,463 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 15:43:43,463 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 15:43:43,463 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 15:43:43,463 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 15:43:43,464 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 15:43:43,464 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 15:43:43,464 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 15:43:43,464 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 15:43:43,464 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 15:43:43,465 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 15:43:43,465 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 15:43:43,465 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 15:43:43,465 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 15:43:43,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 15:43:43,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 15:43:43,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 15:43:43,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 15:43:43,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 15:43:43,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 15:43:43,468 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 15:43:43,468 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 15:43:43,470 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 15:43:43,471 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 15:43:43,471 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 15:43:43,471 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 15:43:43,471 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 15:43:43,472 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 15:43:43,472 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:43:43,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 15:43:43,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 15:43:43,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 15:43:43,473 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 15:43:43,473 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 15:43:43,473 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 15:43:43,473 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 15:43:43,474 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 15:43:43,474 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 15:43:43,474 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 15:43:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:43:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:43:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 15:43:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 15:43:43,478 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 15:43:43,478 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 15:43:43,478 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 15:43:43,478 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 15:43:43,478 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 15:43:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 15:43:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 15:43:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 15:43:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 15:43:43,480 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 15:43:43,480 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 15:43:43,480 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 15:43:43,480 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 15:43:43,480 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 15:43:43,480 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 15:43:43,481 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 15:43:43,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 15:43:43,481 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 15:43:43,481 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 15:43:43,481 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 15:43:43,482 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 15:43:43,482 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 15:43:43,482 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 15:43:43,482 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 15:43:43,482 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 15:43:43,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 15:43:43,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 15:43:43,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 15:43:43,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 15:43:43,486 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 15:43:43,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 15:43:43,486 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 15:43:43,486 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 15:43:43,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 15:43:43,487 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 15:43:43,487 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 15:43:43,487 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 15:43:43,487 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 15:43:43,487 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 15:43:43,487 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 15:43:43,488 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 15:43:43,488 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 15:43:43,488 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 15:43:43,488 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 15:43:43,488 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 15:43:43,488 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:43:43,488 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 15:43:43,489 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 15:43:43,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:43:43,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 15:43:43,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:43:44,708 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:43:44,709 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 15:43:44,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:43:44 BoogieIcfgContainer [2020-09-24 15:43:44,717 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:43:44,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:43:44,718 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:43:44,722 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:43:44,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:43:42" (1/3) ... [2020-09-24 15:43:44,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1480a9e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:43:44, skipping insertion in model container [2020-09-24 15:43:44,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:43:43" (2/3) ... [2020-09-24 15:43:44,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1480a9e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:43:44, skipping insertion in model container [2020-09-24 15:43:44,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:43:44" (3/3) ... [2020-09-24 15:43:44,726 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product24.cil.c [2020-09-24 15:43:44,738 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:43:44,749 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:43:44,772 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:43:44,805 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:43:44,806 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:43:44,806 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:43:44,806 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:43:44,806 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:43:44,806 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:43:44,807 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:43:44,807 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:43:44,837 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states. [2020-09-24 15:43:44,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 15:43:44,856 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:43:44,858 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:43:44,858 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:43:44,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:43:44,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1511101024, now seen corresponding path program 1 times [2020-09-24 15:43:44,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:43:44,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1317275151] [2020-09-24 15:43:44,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:43:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:45,248 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:45,248 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:45,248 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:45,249 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:45,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 15:43:45,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:45,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 15:43:45,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:45,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:45,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 15:43:45,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:45,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:45,763 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:43:45,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:43:45,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:45,793 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:45,793 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:45,794 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:45,794 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:45,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:43:45,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:45,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:43:45,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:45,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:45,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:45,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:45,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:45,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:43:45,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:45,907 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:45,907 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:45,907 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:45,908 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:45,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:43:45,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:45,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:45,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:45,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:45,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:45,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:45,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:45,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:43:45,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:45,913 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:45,913 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:45,913 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:45,913 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:45,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:43:45,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:45,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:45,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:45,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:45,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:45,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:45,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:43:45,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:43:45,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:45,918 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:45,919 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:45,919 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:45,919 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:45,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:43:45,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:45,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:45,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:45,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:45,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:45,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:45,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:45,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:43:45,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:45,925 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:45,925 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:45,925 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:45,925 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:45,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:43:45,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:45,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:45,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:45,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:45,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:45,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:45,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:45,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:43:45,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:45,937 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:45,937 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:45,937 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:45,937 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:45,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:43:45,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:45,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:45,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:45,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:45,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:45,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:45,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:45,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 15:43:45,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:45,943 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:45,943 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:45,943 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:45,944 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:45,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:43:45,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:45,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:45,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:45,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:45,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:43:45,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:45,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:45,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 15:43:45,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:45,949 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:45,950 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:45,950 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:45,950 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:45,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:43:45,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:45,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:45,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:45,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:45,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:43:45,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:45,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:45,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:43:45,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1317275151] [2020-09-24 15:43:45,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:43:45,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:43:45,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750583272] [2020-09-24 15:43:45,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:43:45,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:43:46,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:43:46,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:43:46,013 INFO L87 Difference]: Start difference. First operand 314 states. Second operand 4 states. [2020-09-24 15:43:47,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:43:47,378 INFO L93 Difference]: Finished difference Result 493 states and 590 transitions. [2020-09-24 15:43:47,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 15:43:47,380 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-24 15:43:47,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:43:47,404 INFO L225 Difference]: With dead ends: 493 [2020-09-24 15:43:47,404 INFO L226 Difference]: Without dead ends: 315 [2020-09-24 15:43:47,414 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:43:47,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-09-24 15:43:47,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 263. [2020-09-24 15:43:47,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-09-24 15:43:47,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 288 transitions. [2020-09-24 15:43:47,539 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 288 transitions. Word has length 148 [2020-09-24 15:43:47,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:43:47,540 INFO L479 AbstractCegarLoop]: Abstraction has 263 states and 288 transitions. [2020-09-24 15:43:47,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:43:47,541 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 288 transitions. [2020-09-24 15:43:47,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-24 15:43:47,546 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:43:47,546 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:43:47,546 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:43:47,547 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:43:47,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:43:47,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1531799497, now seen corresponding path program 1 times [2020-09-24 15:43:47,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:43:47,548 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1305677161] [2020-09-24 15:43:47,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:43:47,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:47,666 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:47,666 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:47,667 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:47,667 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:47,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-24 15:43:47,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:47,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:43:47,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:47,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:43:47,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 15:43:47,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:43:47,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:48,069 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:43:48,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:43:48,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:48,081 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:48,082 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:48,082 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:48,082 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:48,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:43:48,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:48,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:48,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:48,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:48,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:48,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:48,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:48,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:43:48,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:48,126 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:48,126 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:48,126 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:48,127 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:48,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:43:48,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:48,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:48,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:48,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:48,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:48,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:48,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:48,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:43:48,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:48,130 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:48,131 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:48,131 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:48,131 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:48,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:43:48,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:48,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:48,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:48,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:48,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:48,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:48,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:48,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:43:48,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:48,135 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:48,135 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:48,135 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:48,135 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:48,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:43:48,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:48,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:48,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:48,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:48,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:48,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:48,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:48,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:43:48,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:48,140 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:48,140 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:48,140 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:48,140 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:48,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:43:48,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:48,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:43:48,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:48,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:48,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:48,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:48,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:48,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:43:48,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:48,151 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:48,151 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:48,151 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:48,151 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:48,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:43:48,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:48,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:48,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:48,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:48,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:48,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:48,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:48,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 15:43:48,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:48,156 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:48,156 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:48,156 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:48,156 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:48,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:43:48,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:48,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:48,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:48,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:48,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:43:48,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:48,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:48,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 15:43:48,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:48,161 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:48,161 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:48,162 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:48,162 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:48,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:43:48,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:48,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:48,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:48,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:48,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:43:48,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:48,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:48,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:43:48,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1305677161] [2020-09-24 15:43:48,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:43:48,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 15:43:48,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008596037] [2020-09-24 15:43:48,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 15:43:48,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:43:48,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 15:43:48,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:43:48,190 INFO L87 Difference]: Start difference. First operand 263 states and 288 transitions. Second operand 5 states. [2020-09-24 15:43:48,919 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:43:50,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:43:50,076 INFO L93 Difference]: Finished difference Result 412 states and 473 transitions. [2020-09-24 15:43:50,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:43:50,076 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-24 15:43:50,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:43:50,081 INFO L225 Difference]: With dead ends: 412 [2020-09-24 15:43:50,081 INFO L226 Difference]: Without dead ends: 304 [2020-09-24 15:43:50,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:43:50,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-09-24 15:43:50,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 253. [2020-09-24 15:43:50,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-09-24 15:43:50,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 275 transitions. [2020-09-24 15:43:50,120 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 275 transitions. Word has length 149 [2020-09-24 15:43:50,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:43:50,121 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 275 transitions. [2020-09-24 15:43:50,121 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 15:43:50,121 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 275 transitions. [2020-09-24 15:43:50,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-24 15:43:50,124 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:43:50,124 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:43:50,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:43:50,125 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:43:50,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:43:50,125 INFO L82 PathProgramCache]: Analyzing trace with hash 931015200, now seen corresponding path program 1 times [2020-09-24 15:43:50,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:43:50,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1704750554] [2020-09-24 15:43:50,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:43:50,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:50,187 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:43:50,187 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -48 [2020-09-24 15:43:50,188 FATAL L256 erpolLogProxyWrapper]: Difference in width: 48 [2020-09-24 15:43:50,188 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:50,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-24 15:43:50,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:50,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:43:50,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:50,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:43:50,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 15:43:50,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:43:50,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:50,532 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:43:50,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:43:50,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:50,541 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:50,542 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:50,542 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:50,542 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:50,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:43:50,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:50,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:50,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:50,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:50,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:50,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:50,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:50,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:43:50,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:50,584 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:50,584 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:50,584 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:50,585 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:50,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:43:50,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:50,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:50,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:50,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:50,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:50,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:50,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:43:50,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:43:50,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:50,589 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:50,589 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:50,590 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:50,590 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:50,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:43:50,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:50,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:50,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:50,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:50,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:50,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:50,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:50,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:43:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:50,594 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:50,594 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:50,594 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:50,595 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:50,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:43:50,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:50,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:50,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:50,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:50,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:50,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:50,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:50,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:43:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:50,600 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:50,600 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:50,600 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:50,600 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:50,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:43:50,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:50,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:50,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:50,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:50,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:50,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:50,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:50,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:43:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:50,617 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:50,618 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:50,618 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:50,618 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:50,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:43:50,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:50,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:50,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:50,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:50,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:50,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:50,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:50,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 15:43:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:50,630 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:50,631 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:50,631 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:50,631 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:50,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:43:50,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:50,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:50,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:50,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:43:50,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:50,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 15:43:50,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:50,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 15:43:50,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:50,636 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:50,636 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:50,637 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:50,637 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:50,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:43:50,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:50,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:43:50,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:43:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:50,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:50,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 15:43:50,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:50,641 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:50,641 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:50,641 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:50,641 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:50,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:43:50,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:50,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:50,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:50,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:50,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:43:50,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:50,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:50,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:43:50,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1704750554] [2020-09-24 15:43:50,702 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:43:50,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 15:43:50,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293327940] [2020-09-24 15:43:50,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 15:43:50,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:43:50,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 15:43:50,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:43:50,704 INFO L87 Difference]: Start difference. First operand 253 states and 275 transitions. Second operand 6 states. [2020-09-24 15:43:51,343 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:43:53,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:43:53,590 INFO L93 Difference]: Finished difference Result 613 states and 725 transitions. [2020-09-24 15:43:53,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 15:43:53,591 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-24 15:43:53,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:43:53,596 INFO L225 Difference]: With dead ends: 613 [2020-09-24 15:43:53,596 INFO L226 Difference]: Without dead ends: 475 [2020-09-24 15:43:53,597 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:43:53,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2020-09-24 15:43:53,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 381. [2020-09-24 15:43:53,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2020-09-24 15:43:53,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 426 transitions. [2020-09-24 15:43:53,669 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 426 transitions. Word has length 162 [2020-09-24 15:43:53,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:43:53,669 INFO L479 AbstractCegarLoop]: Abstraction has 381 states and 426 transitions. [2020-09-24 15:43:53,669 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 15:43:53,670 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 426 transitions. [2020-09-24 15:43:53,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 15:43:53,673 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:43:53,674 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:43:53,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:43:53,674 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:43:53,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:43:53,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1769264987, now seen corresponding path program 1 times [2020-09-24 15:43:53,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:43:53,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [752501125] [2020-09-24 15:43:53,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:43:53,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:53,822 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:53,822 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:53,823 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:53,823 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:53,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 15:43:53,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:53,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 15:43:53,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:53,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:43:53,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-24 15:43:53,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-09-24 15:43:53,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:43:54,278 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:43:54,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:43:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:54,328 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:54,329 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:54,329 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:54,329 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:54,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:43:54,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:54,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:43:54,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:54,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:43:54,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:54,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-24 15:43:54,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:54,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:43:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:54,388 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:54,388 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:54,389 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:54,389 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:54,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:43:54,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:54,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:43:54,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:54,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:43:54,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:54,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:43:54,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:54,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:43:54,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:54,395 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:54,395 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:54,395 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:54,395 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:54,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:43:54,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:54,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:54,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:54,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:43:54,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:54,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:43:54,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:54,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:43:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:54,401 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:54,401 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:54,401 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:54,401 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:54,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:43:54,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:54,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:54,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:54,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:43:54,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:54,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:43:54,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:54,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:43:54,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:54,407 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:54,408 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:54,408 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:54,408 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:54,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:43:54,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:54,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:54,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:54,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:43:54,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:54,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:43:54,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:54,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:43:54,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:54,428 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:54,428 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:54,428 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:54,429 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:54,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:43:54,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:54,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:43:54,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:54,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:43:54,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:54,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:43:54,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:54,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 15:43:54,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:54,449 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:54,449 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:54,450 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:54,450 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:54,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:43:54,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:54,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:54,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:54,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:43:54,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:54,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:43:54,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:54,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 15:43:54,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:54,462 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:54,462 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:54,462 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:54,462 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:54,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:43:54,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:54,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:43:54,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:54,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:43:54,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:43:54,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:43:54,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:54,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 15:43:54,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:43:54,500 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:43:54,500 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:43:54,501 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:43:54,501 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:43:54,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:43:54,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:43:54,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:43:54,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:43:54,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:43:54,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:43:54,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:43:54,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:43:54,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:43:54,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [752501125] [2020-09-24 15:43:54,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:43:54,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 15:43:54,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133847658] [2020-09-24 15:43:54,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:43:54,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:43:54,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:43:54,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:43:54,582 INFO L87 Difference]: Start difference. First operand 381 states and 426 transitions. Second operand 10 states. [2020-09-24 15:43:55,146 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:43:56,548 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:43:56,962 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 15:43:57,401 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:43:57,785 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:43:58,132 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:43:58,565 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 15:43:58,930 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:43:59,526 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:00,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:44:00,650 INFO L93 Difference]: Finished difference Result 1042 states and 1276 transitions. [2020-09-24 15:44:00,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 15:44:00,650 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-09-24 15:44:00,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:44:00,659 INFO L225 Difference]: With dead ends: 1042 [2020-09-24 15:44:00,660 INFO L226 Difference]: Without dead ends: 776 [2020-09-24 15:44:00,662 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-24 15:44:00,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2020-09-24 15:44:00,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 614. [2020-09-24 15:44:00,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 614 states. [2020-09-24 15:44:00,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 699 transitions. [2020-09-24 15:44:00,813 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 699 transitions. Word has length 167 [2020-09-24 15:44:00,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:44:00,814 INFO L479 AbstractCegarLoop]: Abstraction has 614 states and 699 transitions. [2020-09-24 15:44:00,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:44:00,814 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 699 transitions. [2020-09-24 15:44:00,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 15:44:00,818 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:44:00,818 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:44:00,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:44:00,819 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:44:00,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:44:00,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1033981590, now seen corresponding path program 1 times [2020-09-24 15:44:00,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:44:00,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1540583728] [2020-09-24 15:44:00,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:44:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:00,930 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:00,931 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:00,931 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:00,931 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:00,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-24 15:44:00,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:00,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-24 15:44:00,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:00,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 15:44:00,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 15:44:00,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-09-24 15:44:00,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:01,251 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:44:01,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:44:01,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:01,303 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:01,303 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:01,303 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:01,304 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:01,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:44:01,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:01,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:01,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:01,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:01,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:01,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 15:44:01,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:01,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:44:01,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:01,355 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:01,355 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:01,355 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:01,355 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:01,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:01,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:01,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:01,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:01,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:01,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:01,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:44:01,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:01,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:44:01,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:01,360 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:01,361 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:01,361 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:01,361 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:01,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:01,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:01,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:01,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:01,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:01,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:01,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:44:01,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:01,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:44:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:01,367 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:01,367 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:01,367 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:01,368 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:01,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:01,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:01,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:01,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:01,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:01,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:01,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:44:01,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:01,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:44:01,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:01,374 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:01,374 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:01,374 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:01,375 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:01,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:01,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:01,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:01,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:01,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:01,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:01,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:44:01,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:01,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:44:01,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:01,387 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:01,389 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:01,389 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:01,389 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:01,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:44:01,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:01,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:01,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:01,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:01,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:01,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:44:01,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:01,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 15:44:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:01,409 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:01,409 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:01,409 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:01,410 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:01,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:44:01,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:01,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:01,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:01,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:01,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:01,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:44:01,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:01,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 15:44:01,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:01,429 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:01,429 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:01,429 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:01,430 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:01,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:44:01,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:01,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:01,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:01,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:01,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:01,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 15:44:01,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:01,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 15:44:01,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:01,440 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:01,440 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:01,440 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:01,440 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:01,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:01,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:01,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:01,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:01,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:01,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:01,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:44:01,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:01,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 15:44:01,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:01,448 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:01,448 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:01,448 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:01,449 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:01,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:01,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:01,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:44:01,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:01,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:44:01,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:01,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:44:01,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:01,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:44:01,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1540583728] [2020-09-24 15:44:01,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:44:01,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 15:44:01,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075022431] [2020-09-24 15:44:01,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 15:44:01,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:44:01,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 15:44:01,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:44:01,542 INFO L87 Difference]: Start difference. First operand 614 states and 699 transitions. Second operand 11 states. [2020-09-24 15:44:02,256 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:03,736 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:04,026 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:04,340 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:04,651 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:04,973 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:05,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:44:05,394 INFO L93 Difference]: Finished difference Result 1086 states and 1333 transitions. [2020-09-24 15:44:05,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 15:44:05,395 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 172 [2020-09-24 15:44:05,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:44:05,396 INFO L225 Difference]: With dead ends: 1086 [2020-09-24 15:44:05,396 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 15:44:05,399 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=190, Invalid=460, Unknown=0, NotChecked=0, Total=650 [2020-09-24 15:44:05,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 15:44:05,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 15:44:05,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 15:44:05,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 15:44:05,402 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 172 [2020-09-24 15:44:05,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:44:05,403 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 15:44:05,403 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 15:44:05,403 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 15:44:05,403 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 15:44:05,403 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:44:05,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 15:44:05,611 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:05,791 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:05,952 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:06,123 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:06,575 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 194 [2020-09-24 15:44:06,941 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 192 [2020-09-24 15:44:07,237 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 189 [2020-09-24 15:44:07,570 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 192 [2020-09-24 15:44:07,989 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 194 [2020-09-24 15:44:08,292 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 191 [2020-09-24 15:44:08,614 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 191 [2020-09-24 15:44:09,030 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 194 [2020-09-24 15:44:09,341 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 192 [2020-09-24 15:44:09,740 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 194 [2020-09-24 15:44:10,121 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 194 [2020-09-24 15:44:10,505 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 194 [2020-09-24 15:44:10,794 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 191 [2020-09-24 15:44:11,042 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 189 [2020-09-24 15:44:11,330 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 191 [2020-09-24 15:44:11,707 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 194 [2020-09-24 15:44:11,869 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:12,055 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:12,218 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:12,374 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:12,525 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:12,690 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:12,846 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:12,996 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:13,157 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:13,320 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:13,718 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 6 [2020-09-24 15:44:14,125 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 6 [2020-09-24 15:44:14,464 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-24 15:44:14,798 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-24 15:44:15,134 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-24 15:44:15,454 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-24 15:44:15,790 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-24 15:44:16,110 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-24 15:44:16,445 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-24 15:44:16,778 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-24 15:44:17,097 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-24 15:44:17,264 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:17,408 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:44:17,571 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:17,732 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:17,880 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:18,039 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:18,202 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:18,355 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:18,508 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:18,670 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:18,827 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:18,989 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:19,151 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:19,314 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:19,467 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:19,615 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:19,768 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:19,930 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:20,092 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:20,242 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:20,395 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:20,544 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:20,707 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:20,870 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:21,032 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:21,190 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:21,343 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:21,505 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:21,667 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:21,820 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:21,977 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:22,142 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:22,321 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:22,457 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 6 [2020-09-24 15:44:22,616 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:22,775 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:22,938 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:23,091 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:23,254 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:23,407 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:23,570 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:23,733 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:23,896 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:24,045 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:24,228 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:24,376 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:24,535 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:24,697 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:24,851 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:25,003 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:25,306 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 194 [2020-09-24 15:44:25,620 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 193 [2020-09-24 15:44:25,906 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 190 [2020-09-24 15:44:26,206 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 193 [2020-09-24 15:44:26,510 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 194 [2020-09-24 15:44:26,808 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 191 [2020-09-24 15:44:27,103 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 191 [2020-09-24 15:44:27,405 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 194 [2020-09-24 15:44:27,707 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 193 [2020-09-24 15:44:28,010 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 194 [2020-09-24 15:44:28,315 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 194 [2020-09-24 15:44:28,617 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 194 [2020-09-24 15:44:28,907 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 191 [2020-09-24 15:44:29,196 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 190 [2020-09-24 15:44:29,486 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 191 [2020-09-24 15:44:29,789 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 194 [2020-09-24 15:44:29,954 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:30,083 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 6 [2020-09-24 15:44:30,246 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:30,408 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 6 [2020-09-24 15:44:30,570 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:30,733 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:30,896 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:31,046 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:31,203 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:31,355 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:31,711 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 6 [2020-09-24 15:44:31,874 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:32,032 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:32,192 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:32,345 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:32,508 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:32,694 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:32,855 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:33,031 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:33,185 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:33,347 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:33,495 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:33,652 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:33,815 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:33,968 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:34,131 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:34,294 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:34,450 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:34,612 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:34,765 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:34,914 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:35,073 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:35,226 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:35,387 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:35,549 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:35,714 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:35,865 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:36,024 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:36,176 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:36,632 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 7 [2020-09-24 15:44:37,037 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 14 [2020-09-24 15:44:37,284 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 28 [2020-09-24 15:44:37,522 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 1 [2020-09-24 15:44:37,943 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 7 [2020-09-24 15:44:38,448 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 8 [2020-09-24 15:44:38,705 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 28 [2020-09-24 15:44:38,969 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:44:39,368 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 14 [2020-09-24 15:44:39,581 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 1 [2020-09-24 15:44:39,892 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 8 [2020-09-24 15:44:40,238 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 8 [2020-09-24 15:44:40,608 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 7 [2020-09-24 15:44:41,036 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 15 [2020-09-24 15:44:41,450 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 14 [2020-09-24 15:44:41,689 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 28 [2020-09-24 15:44:41,953 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 28 [2020-09-24 15:44:42,207 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 28 [2020-09-24 15:44:42,432 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 17 [2020-09-24 15:44:42,847 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 8