/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:51:35,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:51:35,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:51:35,319 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:51:35,320 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:51:35,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:51:35,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:51:35,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:51:35,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:51:35,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:51:35,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:51:35,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:51:35,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:51:35,330 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:51:35,331 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:51:35,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:51:35,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:51:35,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:51:35,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:51:35,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:51:35,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:51:35,347 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:51:35,348 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:51:35,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:51:35,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:51:35,351 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:51:35,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:51:35,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:51:35,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:51:35,354 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:51:35,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:51:35,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:51:35,356 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:51:35,357 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:51:35,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:51:35,358 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:51:35,359 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:51:35,359 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:51:35,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:51:35,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:51:35,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:51:35,362 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 09:51:35,388 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:51:35,388 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:51:35,389 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:51:35,389 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:51:35,389 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:51:35,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:51:35,390 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:51:35,390 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:51:35,390 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:51:35,391 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:51:35,391 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:51:35,391 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:51:35,391 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:51:35,391 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:51:35,392 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:51:35,392 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:51:35,392 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:51:35,392 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:51:35,392 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:51:35,393 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:51:35,393 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:51:35,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:51:35,393 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:51:35,394 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:51:35,394 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:51:35,394 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:51:35,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:51:35,394 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:51:35,395 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:51:35,395 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 09:51:35,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:51:35,862 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:51:35,867 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:51:35,869 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:51:35,870 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:51:35,871 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product27.cil.c [2020-09-25 09:51:35,962 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3b1899ed0/f5d5590bdd9c4915acf99ca80c79fceb/FLAG0302ee8b1 [2020-09-25 09:51:36,569 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:51:36,570 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product27.cil.c [2020-09-25 09:51:36,584 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3b1899ed0/f5d5590bdd9c4915acf99ca80c79fceb/FLAG0302ee8b1 [2020-09-25 09:51:36,904 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3b1899ed0/f5d5590bdd9c4915acf99ca80c79fceb [2020-09-25 09:51:36,917 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:51:36,923 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:51:36,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:51:36,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:51:36,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:51:36,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:51:36" (1/1) ... [2020-09-25 09:51:36,938 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@638c4c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:36, skipping insertion in model container [2020-09-25 09:51:36,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:51:36" (1/1) ... [2020-09-25 09:51:36,949 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:51:37,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:51:37,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:51:37,518 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:51:37,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:51:37,679 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:51:37,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:37 WrapperNode [2020-09-25 09:51:37,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:51:37,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:51:37,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:51:37,681 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:51:37,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:37" (1/1) ... [2020-09-25 09:51:37,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:37" (1/1) ... [2020-09-25 09:51:37,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:37" (1/1) ... [2020-09-25 09:51:37,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:37" (1/1) ... [2020-09-25 09:51:37,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:37" (1/1) ... [2020-09-25 09:51:37,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:37" (1/1) ... [2020-09-25 09:51:37,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:37" (1/1) ... [2020-09-25 09:51:37,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:51:37,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:51:37,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:51:37,791 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:51:37,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:37" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:51:37,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:51:37,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:51:37,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 09:51:37,896 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 09:51:37,897 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 09:51:37,897 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 09:51:37,897 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 09:51:37,898 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:51:37,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 09:51:37,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 09:51:37,899 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 09:51:37,899 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 09:51:37,899 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 09:51:37,899 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 09:51:37,899 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 09:51:37,900 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 09:51:37,900 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 09:51:37,901 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 09:51:37,901 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 09:51:37,901 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 09:51:37,901 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 09:51:37,902 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 09:51:37,902 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 09:51:37,902 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 09:51:37,902 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 09:51:37,903 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 09:51:37,903 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 09:51:37,903 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 09:51:37,904 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 09:51:37,904 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 09:51:37,904 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 09:51:37,904 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 09:51:37,904 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 09:51:37,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 09:51:37,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 09:51:37,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 09:51:37,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 09:51:37,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 09:51:37,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 09:51:37,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:51:37,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:51:37,906 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 09:51:37,906 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 09:51:37,906 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 09:51:37,906 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 09:51:37,907 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 09:51:37,907 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 09:51:37,907 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 09:51:37,908 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 09:51:37,908 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 09:51:37,908 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 09:51:37,908 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 09:51:37,909 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 09:51:37,909 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 09:51:37,909 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:51:37,909 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 09:51:37,909 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 09:51:37,910 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 09:51:37,910 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 09:51:37,910 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 09:51:37,910 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 09:51:37,910 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 09:51:37,910 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 09:51:37,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 09:51:37,911 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 09:51:37,911 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 09:51:37,911 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 09:51:37,911 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 09:51:37,911 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 09:51:37,912 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 09:51:37,912 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 09:51:37,912 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 09:51:37,912 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 09:51:37,912 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 09:51:37,912 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 09:51:37,913 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 09:51:37,913 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 09:51:37,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 09:51:37,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 09:51:37,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 09:51:37,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 09:51:37,914 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 09:51:37,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 09:51:37,914 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 09:51:37,914 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 09:51:37,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 09:51:37,914 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 09:51:37,915 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 09:51:37,915 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 09:51:37,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:51:37,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 09:51:37,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:51:39,060 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:51:39,061 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 09:51:39,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:51:39 BoogieIcfgContainer [2020-09-25 09:51:39,067 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:51:39,069 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:51:39,069 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:51:39,072 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:51:39,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:51:36" (1/3) ... [2020-09-25 09:51:39,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48798467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:51:39, skipping insertion in model container [2020-09-25 09:51:39,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:51:37" (2/3) ... [2020-09-25 09:51:39,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48798467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:51:39, skipping insertion in model container [2020-09-25 09:51:39,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:51:39" (3/3) ... [2020-09-25 09:51:39,076 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product27.cil.c [2020-09-25 09:51:39,088 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:51:39,099 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:51:39,116 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:51:39,146 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:51:39,146 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:51:39,146 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:51:39,146 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:51:39,146 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:51:39,146 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:51:39,146 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:51:39,146 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:51:39,169 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2020-09-25 09:51:39,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 09:51:39,186 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:51:39,188 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:51:39,188 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:51:39,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:51:39,196 INFO L82 PathProgramCache]: Analyzing trace with hash 2005054536, now seen corresponding path program 1 times [2020-09-25 09:51:39,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:51:39,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [119124251] [2020-09-25 09:51:39,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:51:39,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:39,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:39,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:41,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:42,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:44,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:44,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 09:51:44,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:51:44,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 09:51:44,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:44,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:44,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:51:44,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 09:51:44,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 09:51:44,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 09:51:45,193 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:51:45,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:51:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:45,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:45,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:45,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:51:45,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:45,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-09-25 09:51:45,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:45,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:45,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:51:45,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:51:45,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 09:51:45,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:51:45,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:51:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:45,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:45,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:45,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:51:45,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:45,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:51:45,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:45,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:45,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:51:45,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:51:45,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:51:45,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:51:45,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:51:45,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:45,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:45,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:45,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:51:45,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:45,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:51:45,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:45,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:45,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:51:45,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:51:45,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:51:45,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:51:45,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:51:45,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:45,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:45,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:45,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:51:45,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:45,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:51:45,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:45,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:45,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:51:45,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:51:45,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:51:45,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:51:45,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:51:45,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:45,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:45,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:45,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:51:45,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:45,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:51:45,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:45,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:45,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:51:45,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:51:45,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:51:45,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:51:45,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 09:51:45,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:45,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:45,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:45,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:51:45,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:45,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 09:51:45,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:45,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:45,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:51:45,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:51:45,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:51:45,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:51:45,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 09:51:45,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:45,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:45,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:45,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:51:45,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:45,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:51:45,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:45,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:45,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:51:45,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:51:45,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:51:45,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:51:45,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:51:45,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [119124251] [2020-09-25 09:51:45,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:51:45,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:51:45,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107502315] [2020-09-25 09:51:45,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:51:45,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:51:45,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:51:45,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:51:45,895 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 8 states. [2020-09-25 09:51:46,474 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:51:47,371 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:51:47,690 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 09:51:48,145 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:51:48,529 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:51:48,817 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:51:49,144 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:51:49,484 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:51:51,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:51:51,105 INFO L93 Difference]: Finished difference Result 556 states and 690 transitions. [2020-09-25 09:51:51,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 09:51:51,108 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 09:51:51,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:51:51,145 INFO L225 Difference]: With dead ends: 556 [2020-09-25 09:51:51,145 INFO L226 Difference]: Without dead ends: 386 [2020-09-25 09:51:51,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 09:51:51,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-09-25 09:51:51,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 342. [2020-09-25 09:51:51,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2020-09-25 09:51:51,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 388 transitions. [2020-09-25 09:51:51,318 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 388 transitions. Word has length 142 [2020-09-25 09:51:51,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:51:51,320 INFO L479 AbstractCegarLoop]: Abstraction has 342 states and 388 transitions. [2020-09-25 09:51:51,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:51:51,320 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 388 transitions. [2020-09-25 09:51:51,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 09:51:51,336 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:51:51,337 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:51:51,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:51:51,346 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:51:51,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:51:51,347 INFO L82 PathProgramCache]: Analyzing trace with hash 297309340, now seen corresponding path program 1 times [2020-09-25 09:51:51,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:51:51,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [25785173] [2020-09-25 09:51:51,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:51:51,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:51,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:51,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:52,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:56,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:56,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 09:51:56,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:51:56,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-25 09:51:56,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:56,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:56,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:51:56,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 09:51:56,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 09:51:56,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:51:56,810 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:51:56,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:51:56,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:56,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:57,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:57,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:51:57,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:57,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-09-25 09:51:57,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:57,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:57,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:51:57,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:51:57,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 09:51:57,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:51:57,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:51:57,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:57,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:57,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:57,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:51:57,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:57,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:51:57,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:57,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:57,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:51:57,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:51:57,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:51:57,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:51:57,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:51:57,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:57,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:57,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:57,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:51:57,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:57,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:51:57,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:57,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:57,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:51:57,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:51:57,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:51:57,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:51:57,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:51:57,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:57,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:57,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:57,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:51:57,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:57,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:51:57,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:57,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:57,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:51:57,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:51:57,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:51:57,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:51:57,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:51:57,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:57,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:57,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:57,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:51:57,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:57,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:51:57,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:57,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:57,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:51:57,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:51:57,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:51:57,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:51:57,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 09:51:57,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:57,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:57,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:57,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:51:57,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:57,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:51:57,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:57,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:57,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:51:57,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:51:57,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:51:57,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:51:57,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 09:51:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:57,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:57,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:57,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:51:57,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:57,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:51:57,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:57,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:57,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:51:57,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:51:57,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:51:57,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:51:57,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 09:51:57,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:57,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:51:57,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:51:57,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:51:57,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:51:57,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:51:57,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:51:57,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:51:57,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:51:57,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:51:57,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:51:57,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:51:57,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:51:57,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [25785173] [2020-09-25 09:51:57,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:51:57,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 09:51:57,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556675938] [2020-09-25 09:51:57,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:51:57,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:51:57,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:51:57,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:51:57,207 INFO L87 Difference]: Start difference. First operand 342 states and 388 transitions. Second operand 5 states. [2020-09-25 09:51:57,666 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:51:59,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:51:59,666 INFO L93 Difference]: Finished difference Result 881 states and 1082 transitions. [2020-09-25 09:51:59,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:51:59,668 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 09:51:59,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:51:59,681 INFO L225 Difference]: With dead ends: 881 [2020-09-25 09:51:59,681 INFO L226 Difference]: Without dead ends: 649 [2020-09-25 09:51:59,683 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:51:59,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2020-09-25 09:51:59,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 561. [2020-09-25 09:51:59,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 561 states. [2020-09-25 09:51:59,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 651 transitions. [2020-09-25 09:51:59,836 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 651 transitions. Word has length 148 [2020-09-25 09:51:59,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:51:59,837 INFO L479 AbstractCegarLoop]: Abstraction has 561 states and 651 transitions. [2020-09-25 09:51:59,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:51:59,838 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 651 transitions. [2020-09-25 09:51:59,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 09:51:59,841 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:51:59,841 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:51:59,841 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:51:59,841 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:51:59,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:51:59,842 INFO L82 PathProgramCache]: Analyzing trace with hash -104151563, now seen corresponding path program 1 times [2020-09-25 09:51:59,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:51:59,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [683330262] [2020-09-25 09:51:59,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:51:59,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:51:59,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:00,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:00,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:04,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:04,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 09:52:04,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:52:04,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-25 09:52:04,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:04,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:04,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 09:52:04,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 09:52:04,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 09:52:04,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:05,287 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:52:05,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:52:05,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:05,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:05,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:05,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:52:05,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:05,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-09-25 09:52:05,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:05,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:05,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:05,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:05,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 09:52:05,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:05,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:52:05,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:05,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:05,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:05,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:05,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:05,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:52:05,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:05,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:05,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:05,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:05,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:05,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:05,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:52:05,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:05,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:05,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:05,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:05,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:05,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:52:05,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:05,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:05,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:05,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:05,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:05,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:05,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:52:05,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:05,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:05,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:05,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:05,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:05,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:52:05,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:05,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:05,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:05,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:05,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:05,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:52:05,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:52:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:05,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:05,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:05,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:05,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:05,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 09:52:05,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:05,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:05,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:05,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:05,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:05,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:52:05,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 09:52:05,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:05,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:05,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:05,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:52:05,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:05,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:52:05,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:05,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:05,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:05,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 09:52:05,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:05,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:52:05,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 09:52:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:05,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:05,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:05,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 09:52:05,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:05,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:52:05,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:05,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:05,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:05,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 09:52:05,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:05,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:05,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:52:05,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:05,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:05,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:05,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:05,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:05,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:52:05,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:05,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:05,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:05,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:05,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:05,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:05,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 09:52:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:05,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:05,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:05,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:05,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:05,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:52:05,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:05,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:05,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:05,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:52:05,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:05,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:05,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 09:52:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:05,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:05,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:05,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:05,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:05,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:52:05,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:05,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:05,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:05,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:52:05,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:05,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:05,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:52:05,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [683330262] [2020-09-25 09:52:05,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:52:05,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 09:52:05,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849919994] [2020-09-25 09:52:05,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 09:52:05,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:52:05,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 09:52:05,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:52:05,857 INFO L87 Difference]: Start difference. First operand 561 states and 651 transitions. Second operand 6 states. [2020-09-25 09:52:06,381 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:07,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:52:07,040 INFO L93 Difference]: Finished difference Result 887 states and 1076 transitions. [2020-09-25 09:52:07,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 09:52:07,042 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2020-09-25 09:52:07,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:52:07,046 INFO L225 Difference]: With dead ends: 887 [2020-09-25 09:52:07,046 INFO L226 Difference]: Without dead ends: 415 [2020-09-25 09:52:07,048 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 09:52:07,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-09-25 09:52:07,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 389. [2020-09-25 09:52:07,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2020-09-25 09:52:07,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 424 transitions. [2020-09-25 09:52:07,100 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 424 transitions. Word has length 156 [2020-09-25 09:52:07,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:52:07,100 INFO L479 AbstractCegarLoop]: Abstraction has 389 states and 424 transitions. [2020-09-25 09:52:07,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 09:52:07,101 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 424 transitions. [2020-09-25 09:52:07,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 09:52:07,103 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:52:07,103 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] [2020-09-25 09:52:07,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:52:07,104 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:52:07,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:52:07,104 INFO L82 PathProgramCache]: Analyzing trace with hash 653831882, now seen corresponding path program 1 times [2020-09-25 09:52:07,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:52:07,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1186077340] [2020-09-25 09:52:07,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:52:07,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:07,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:08,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:08,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:08,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:12,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:12,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 09:52:12,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:52:12,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-25 09:52:12,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:12,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:12,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:52:12,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 09:52:12,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-25 09:52:12,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:52:12,587 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:52:12,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:52:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:12,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:12,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:12,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:52:12,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:12,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-09-25 09:52:12,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:12,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:12,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:12,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:12,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 09:52:12,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:12,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:52:12,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:12,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:12,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:12,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:12,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:12,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:52:12,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:12,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:12,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:12,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:12,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:12,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:12,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:52:12,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:12,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:12,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:12,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:12,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:12,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:12,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:12,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:12,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:12,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:12,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:12,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:12,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:52:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:12,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:12,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:12,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:12,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:12,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:52:12,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:12,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:12,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:12,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:12,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:12,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:12,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:52:12,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:12,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:12,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:12,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:12,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:12,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:52:12,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:12,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:12,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:12,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:12,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:12,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:13,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 09:52:13,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:13,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:13,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:13,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:52:13,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:13,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:52:13,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:13,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:13,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:13,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:13,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:52:13,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:13,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 09:52:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:13,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:13,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:13,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:13,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 09:52:13,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:52:13,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 09:52:13,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:13,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:13,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:52:13,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:52:13,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 09:52:13,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:13,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:52:13,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:13,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:13,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:13,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:13,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:13,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:13,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:13,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:13,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:13,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:13,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:13,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:13,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 09:52:13,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:13,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:13,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:13,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:13,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:13,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:52:13,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:13,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:13,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:13,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:13,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:13,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:13,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 09:52:13,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:13,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:13,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:13,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:13,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:13,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:52:13,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:13,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:13,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:52:13,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:13,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:13,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:13,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:52:13,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1186077340] [2020-09-25 09:52:13,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:52:13,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 09:52:13,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401018375] [2020-09-25 09:52:13,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 09:52:13,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:52:13,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 09:52:13,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 09:52:13,232 INFO L87 Difference]: Start difference. First operand 389 states and 424 transitions. Second operand 10 states. [2020-09-25 09:52:13,863 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:15,048 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:15,353 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:52:15,676 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:16,022 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 09:52:16,326 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 09:52:16,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:52:16,527 INFO L93 Difference]: Finished difference Result 415 states and 458 transitions. [2020-09-25 09:52:16,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 09:52:16,527 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 165 [2020-09-25 09:52:16,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:52:16,528 INFO L225 Difference]: With dead ends: 415 [2020-09-25 09:52:16,528 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 09:52:16,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-25 09:52:16,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 09:52:16,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 09:52:16,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 09:52:16,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 09:52:16,531 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 165 [2020-09-25 09:52:16,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:52:16,531 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 09:52:16,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 09:52:16,532 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 09:52:16,532 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 09:52:16,532 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 09:52:16,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 09:52:16,749 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:16,922 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:17,085 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:17,246 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:17,611 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-25 09:52:17,904 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 09:52:18,059 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:18,333 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 09:52:18,605 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 09:52:18,765 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:18,919 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:19,071 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:19,230 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:19,378 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:19,541 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:19,733 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 7 [2020-09-25 09:52:19,892 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:20,056 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:20,214 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:20,366 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:20,540 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:20,693 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:20,842 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:20,990 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:21,144 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:21,297 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:21,449 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:21,599 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:21,759 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:21,917 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:22,070 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:22,223 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:22,372 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:22,489 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 7 [2020-09-25 09:52:22,660 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:22,812 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:22,965 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:23,113 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:23,257 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:52:23,414 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:23,567 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:23,727 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:23,884 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:24,036 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:24,194 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:24,351 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:24,499 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:24,647 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:24,799 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189