/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=0.4 --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_product15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:13:11,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:13:11,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:13:11,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:13:11,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:13:11,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:13:11,862 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:13:11,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:13:11,866 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:13:11,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:13:11,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:13:11,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:13:11,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:13:11,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:13:11,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:13:11,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:13:11,880 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:13:11,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:13:11,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:13:11,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:13:11,895 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:13:11,898 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:13:11,899 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:13:11,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:13:11,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:13:11,904 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:13:11,905 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:13:11,908 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:13:11,908 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:13:11,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:13:11,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:13:11,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:13:11,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:13:11,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:13:11,917 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:13:11,917 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:13:11,918 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:13:11,918 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:13:11,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:13:11,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:13:11,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:13:11,922 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 13:13:11,958 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:13:11,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:13:11,960 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:13:11,960 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:13:11,960 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:13:11,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:13:11,961 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:13:11,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:13:11,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:13:11,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:13:11,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:13:11,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:13:11,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:13:11,962 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:13:11,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:13:11,962 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:13:11,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:13:11,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:13:11,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:13:11,963 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:13:11,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:13:11,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:13:11,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:13:11,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:13:11,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:13:11,964 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:13:11,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:13:11,965 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:13:11,965 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:13:11,965 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true; [2020-09-25 13:13:12,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:13:12,448 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:13:12,453 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:13:12,455 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:13:12,455 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:13:12,456 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product15.cil.c [2020-09-25 13:13:12,552 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3242665dc/4f0356bdee174e9a8bef53da0b4099d5/FLAG877d7c749 [2020-09-25 13:13:13,201 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:13:13,202 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product15.cil.c [2020-09-25 13:13:13,216 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3242665dc/4f0356bdee174e9a8bef53da0b4099d5/FLAG877d7c749 [2020-09-25 13:13:13,468 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3242665dc/4f0356bdee174e9a8bef53da0b4099d5 [2020-09-25 13:13:13,482 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:13:13,490 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:13:13,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:13:13,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:13:13,498 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:13:13,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:13:13" (1/1) ... [2020-09-25 13:13:13,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cafb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:13, skipping insertion in model container [2020-09-25 13:13:13,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:13:13" (1/1) ... [2020-09-25 13:13:13,513 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:13:13,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:13:13,956 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:13:13,981 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:13:14,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:13:14,241 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:13:14,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:14 WrapperNode [2020-09-25 13:13:14,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:13:14,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:13:14,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:13:14,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:13:14,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:14" (1/1) ... [2020-09-25 13:13:14,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:14" (1/1) ... [2020-09-25 13:13:14,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:14" (1/1) ... [2020-09-25 13:13:14,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:14" (1/1) ... [2020-09-25 13:13:14,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:14" (1/1) ... [2020-09-25 13:13:14,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:14" (1/1) ... [2020-09-25 13:13:14,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:14" (1/1) ... [2020-09-25 13:13:14,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:13:14,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:13:14,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:13:14,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:13:14,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:14" (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 13:13:14,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:13:14,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:13:14,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:13:14,440 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:13:14,440 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:13:14,440 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:13:14,440 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:13:14,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:13:14,441 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:13:14,441 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:13:14,441 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 13:13:14,441 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:13:14,442 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-25 13:13:14,442 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:13:14,442 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:13:14,442 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:13:14,442 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:13:14,443 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:13:14,443 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 13:13:14,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:13:14,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:13:14,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:13:14,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:13:14,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:13:14,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:13:14,444 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:13:14,444 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:13:14,445 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:13:14,445 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:13:14,445 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:13:14,445 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:13:14,445 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:13:14,445 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:13:14,445 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:13:14,446 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:13:14,446 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:13:14,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 13:13:14,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:13:14,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:13:14,446 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:13:14,447 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:13:14,447 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:13:14,447 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:13:14,447 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:13:14,447 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:13:14,447 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:13:14,448 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:13:14,448 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 13:13:14,448 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:13:14,448 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:13:14,448 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:13:14,448 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:13:14,449 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:13:14,449 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:13:14,449 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:13:14,449 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:13:14,449 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:13:14,449 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:13:14,450 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 13:13:14,450 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:13:14,450 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 13:13:14,450 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:13:14,450 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-25 13:13:14,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:13:14,450 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:13:14,451 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:13:14,451 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:13:14,451 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:13:14,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:13:14,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:13:14,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:13:14,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:13:14,452 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:13:14,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:13:14,452 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:13:14,452 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:13:14,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:13:14,453 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:13:14,453 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:13:14,453 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:13:14,453 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:13:14,453 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:13:14,453 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:13:14,454 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:13:14,454 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:13:14,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:13:14,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:13:14,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:13:15,594 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:13:15,594 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:13:15,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:13:15 BoogieIcfgContainer [2020-09-25 13:13:15,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:13:15,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:13:15,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:13:15,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:13:15,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:13:13" (1/3) ... [2020-09-25 13:13:15,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45031f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:13:15, skipping insertion in model container [2020-09-25 13:13:15,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:13:14" (2/3) ... [2020-09-25 13:13:15,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45031f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:13:15, skipping insertion in model container [2020-09-25 13:13:15,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:13:15" (3/3) ... [2020-09-25 13:13:15,615 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product15.cil.c [2020-09-25 13:13:15,627 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:13:15,637 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:13:15,656 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:13:15,686 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:13:15,686 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:13:15,687 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:13:15,687 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:13:15,687 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:13:15,687 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:13:15,687 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:13:15,687 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:13:15,718 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states. [2020-09-25 13:13:15,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 13:13:15,736 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:13:15,738 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 13:13:15,738 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:13:15,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:13:15,747 INFO L82 PathProgramCache]: Analyzing trace with hash -893620633, now seen corresponding path program 1 times [2020-09-25 13:13:15,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:13:15,758 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [997227364] [2020-09-25 13:13:15,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:13:16,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:16,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:16,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:17,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:18,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:21,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:21,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 13:13:21,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:13:21,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-09-25 13:13:21,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:21,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:21,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:13:21,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 13:13:21,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 13:13:21,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 13:13:21,699 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:13:21,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:13:21,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:21,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:22,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:22,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:13:22,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:22,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 346 [2020-09-25 13:13:22,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:22,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:22,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:13:22,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:22,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 13:13:22,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:22,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:13:22,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:22,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:22,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:22,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:13:22,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:22,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:13:22,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:22,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:22,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:13:22,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:22,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:13:22,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:22,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:13:22,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:22,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:22,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:22,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:13:22,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:22,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:13:22,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:22,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:22,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:13:22,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:22,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:13:22,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:22,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:13:22,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:22,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:22,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:22,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:13:22,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:22,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 13:13:22,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:22,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:22,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:13:22,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:22,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:13:22,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:22,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:13:22,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:22,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:22,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:22,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:13:22,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:22,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:13:22,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:22,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:22,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:13:22,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:22,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:13:22,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:22,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:13:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:22,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:22,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:22,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:13:22,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:22,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:13:22,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:22,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:22,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:13:22,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:13:22,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:13:22,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:22,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 13:13:22,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:22,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:22,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:22,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:13:22,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:22,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:13:22,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:22,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:22,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:13:22,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:13:22,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:13:22,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:22,306 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 13:13:22,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [997227364] [2020-09-25 13:13:22,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:13:22,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:13:22,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769364670] [2020-09-25 13:13:22,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:13:22,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:13:22,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:13:22,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:13:22,341 INFO L87 Difference]: Start difference. First operand 285 states. Second operand 4 states. [2020-09-25 13:13:22,974 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:13:24,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:13:24,874 INFO L93 Difference]: Finished difference Result 559 states and 685 transitions. [2020-09-25 13:13:24,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:13:24,877 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 13:13:24,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:13:24,899 INFO L225 Difference]: With dead ends: 559 [2020-09-25 13:13:24,899 INFO L226 Difference]: Without dead ends: 395 [2020-09-25 13:13:24,905 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:13:24,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2020-09-25 13:13:25,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 332. [2020-09-25 13:13:25,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-09-25 13:13:25,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 369 transitions. [2020-09-25 13:13:25,044 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 369 transitions. Word has length 142 [2020-09-25 13:13:25,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:13:25,045 INFO L479 AbstractCegarLoop]: Abstraction has 332 states and 369 transitions. [2020-09-25 13:13:25,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:13:25,046 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 369 transitions. [2020-09-25 13:13:25,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 13:13:25,051 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:13:25,051 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] [2020-09-25 13:13:25,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:13:25,052 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:13:25,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:13:25,052 INFO L82 PathProgramCache]: Analyzing trace with hash -69663156, now seen corresponding path program 1 times [2020-09-25 13:13:25,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:13:25,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [561166138] [2020-09-25 13:13:25,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:13:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:25,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:25,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:26,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:26,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:30,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:30,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 13:13:30,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:13:30,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 13:13:30,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:30,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:30,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 13:13:30,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 13:13:30,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-25 13:13:30,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:30,473 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:13:30,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:13:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:30,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:30,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:30,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:13:30,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:30,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-09-25 13:13:30,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:30,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:30,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:13:30,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:30,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 13:13:30,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:30,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:13:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:30,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:30,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:30,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:13:30,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:30,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:13:30,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:30,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:30,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:13:30,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:30,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:13:30,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:30,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:13:30,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:30,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:30,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:30,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:13:30,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:30,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:13:30,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:30,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:30,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:13:30,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:30,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:13:30,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:30,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:13:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:30,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:30,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:30,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:13:30,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:30,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:13:30,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:30,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:30,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:13:30,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:30,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:13:30,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:30,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:13:30,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:30,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:30,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:30,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:13:30,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:30,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:13:30,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:30,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:30,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:13:30,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:30,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:13:30,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:30,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 13:13:30,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:30,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:30,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:30,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:13:30,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:30,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:13:30,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:30,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:30,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:13:30,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:30,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 13:13:30,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:13:30,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:13:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:30,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:30,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:30,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:13:30,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:30,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:13:30,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:30,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:30,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:13:30,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:30,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:13:30,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:30,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 13:13:30,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:30,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:30,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:30,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:13:30,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:30,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:13:30,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:30,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:30,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:13:30,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:30,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:13:30,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:30,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 13:13:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:30,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:30,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:30,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:13:30,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:30,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:13:30,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:30,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:30,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:13:30,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:13:30,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:13:30,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:13:30,996 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 13:13:30,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [561166138] [2020-09-25 13:13:30,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:13:30,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 13:13:30,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765769643] [2020-09-25 13:13:31,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:13:31,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:13:31,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:13:31,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:13:31,002 INFO L87 Difference]: Start difference. First operand 332 states and 369 transitions. Second operand 9 states. [2020-09-25 13:13:31,574 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:13:32,951 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:13:33,279 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:33,687 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:13:34,062 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:34,395 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:13:34,713 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:13:35,034 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:13:36,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:13:36,515 INFO L93 Difference]: Finished difference Result 942 states and 1198 transitions. [2020-09-25 13:13:36,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 13:13:36,516 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 151 [2020-09-25 13:13:36,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:13:36,525 INFO L225 Difference]: With dead ends: 942 [2020-09-25 13:13:36,525 INFO L226 Difference]: Without dead ends: 720 [2020-09-25 13:13:36,528 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 13:13:36,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2020-09-25 13:13:36,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 547. [2020-09-25 13:13:36,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 547 states. [2020-09-25 13:13:36,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 637 transitions. [2020-09-25 13:13:36,632 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 637 transitions. Word has length 151 [2020-09-25 13:13:36,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:13:36,633 INFO L479 AbstractCegarLoop]: Abstraction has 547 states and 637 transitions. [2020-09-25 13:13:36,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:13:36,633 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 637 transitions. [2020-09-25 13:13:36,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 13:13:36,637 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:13:36,638 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 13:13:36,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:13:36,638 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:13:36,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:13:36,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1993363286, now seen corresponding path program 1 times [2020-09-25 13:13:36,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:13:36,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1595613435] [2020-09-25 13:13:36,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:13:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:36,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:36,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:36,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:41,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:41,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 13:13:41,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:13:41,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 13:13:41,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:41,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:41,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:13:41,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 13:13:41,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 13:13:41,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:13:42,037 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:13:42,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:13:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:42,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:42,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:42,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:13:42,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:42,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-25 13:13:42,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:42,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:42,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:13:42,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:42,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 13:13:42,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:42,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:13:42,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:42,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:42,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:42,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:13:42,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:42,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:13:42,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:42,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:42,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:13:42,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:42,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:13:42,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:42,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:13:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:42,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:42,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:42,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:13:42,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:42,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:13:42,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:42,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:42,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:13:42,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:42,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:13:42,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:42,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:13:42,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:42,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:42,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:42,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:13:42,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:42,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:13:42,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:42,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:42,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:13:42,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:42,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:13:42,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:42,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:13:42,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:42,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:42,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:42,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:13:42,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:42,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:13:42,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:42,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:42,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:13:42,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:42,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:13:42,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:42,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 13:13:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:42,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:42,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:42,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:13:42,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:42,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:13:42,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:42,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:42,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:13:42,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 13:13:42,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:13:42,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:42,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 13:13:42,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:42,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:42,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:42,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:13:42,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:42,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:13:42,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:42,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:42,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:13:42,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 13:13:42,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:13:42,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:42,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:13:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:42,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:42,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:42,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:13:42,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:42,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:13:42,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:42,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:42,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:13:42,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:13:42,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:13:42,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:42,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 13:13:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:42,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:42,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:42,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:13:42,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:42,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:13:42,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:42,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:42,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:13:42,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:13:42,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:13:42,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:42,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 13:13:42,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:13:42,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:13:42,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:13:42,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:13:42,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:13:42,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:13:42,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:13:42,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:13:42,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:13:42,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:13:42,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:13:42,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:13:42,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:13:42,511 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1595613435] [2020-09-25 13:13:42,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:13:42,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 13:13:42,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096915096] [2020-09-25 13:13:42,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 13:13:42,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:13:42,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 13:13:42,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:13:42,514 INFO L87 Difference]: Start difference. First operand 547 states and 637 transitions. Second operand 6 states. [2020-09-25 13:13:43,065 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:13:43,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:13:43,849 INFO L93 Difference]: Finished difference Result 761 states and 932 transitions. [2020-09-25 13:13:43,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 13:13:43,853 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2020-09-25 13:13:43,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:13:43,854 INFO L225 Difference]: With dead ends: 761 [2020-09-25 13:13:43,854 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 13:13:43,871 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:13:43,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 13:13:43,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 13:13:43,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 13:13:43,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 13:13:43,872 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 156 [2020-09-25 13:13:43,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:13:43,872 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 13:13:43,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 13:13:43,873 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 13:13:43,873 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 13:13:43,873 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:13:43,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 13:13:44,107 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:13:44,280 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:44,453 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:44,599 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 10 [2020-09-25 13:13:44,976 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 13:13:45,250 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 13:13:45,510 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 13:13:45,769 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 13:13:46,114 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 13:13:46,460 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 13:13:46,709 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 13:13:47,045 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 13:13:47,383 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 13:13:47,544 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:47,655 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 10 [2020-09-25 13:13:47,815 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:47,972 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:13:48,130 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:48,234 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 10 [2020-09-25 13:13:48,380 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:13:48,487 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 10 [2020-09-25 13:13:48,645 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:48,798 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:13:48,956 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:13:49,111 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:13:49,268 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:49,427 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:49,582 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:13:49,739 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:49,898 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:50,055 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:13:50,218 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:50,377 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:50,620 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 13:13:50,951 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 13:13:51,286 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 13:13:51,617 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 13:13:51,859 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 13:13:52,020 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:52,172 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:13:52,330 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:52,483 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:13:52,645 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:52,810 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:52,970 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:53,146 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:53,299 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:13:53,457 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:53,611 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:13:53,767 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:53,926 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:54,084 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:54,240 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:13:54,505 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 13:13:54,838 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 13:13:55,181 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 13:13:55,516 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 13:13:55,758 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 13:13:56,116 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 13:13:56,269 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:13:56,423 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:13:56,577 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:13:56,901 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 13:13:57,231 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 13:13:57,386 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:13:57,708 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 13:13:58,031 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 13:13:58,141 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 10 [2020-09-25 13:13:58,301 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:58,455 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:13:58,612 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:58,771 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:58,928 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:59,082 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:13:59,242 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:13:59,400 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:59,557 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:13:59,715 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:13:59,873 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:00,031 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:00,194 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:00,363 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:00,486 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 10 [2020-09-25 13:14:00,642 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:14:00,799 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:00,957 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:01,118 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:01,271 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:14:01,426 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:14:01,579 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:14:01,737 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:01,895 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:02,053 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:02,481 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 13 [2020-09-25 13:14:02,716 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 24 [2020-09-25 13:14:03,156 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 16 [2020-09-25 13:14:03,411 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2020-09-25 13:14:03,647 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 24 [2020-09-25 13:14:03,961 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:14:04,428 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 16 [2020-09-25 13:14:04,633 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2020-09-25 13:14:05,055 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 16 [2020-09-25 13:14:05,476 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 14 [2020-09-25 13:14:05,742 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 24 [2020-09-25 13:14:06,192 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 13 [2020-09-25 13:14:06,426 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 24 [2020-09-25 13:14:06,626 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1