/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=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:19:01,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:19:01,807 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:19:01,855 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:19:01,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:19:01,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:19:01,869 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:19:01,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:19:01,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:19:01,879 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:19:01,880 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:19:01,881 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:19:01,882 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:19:01,885 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:19:01,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:19:01,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:19:01,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:19:01,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:19:01,897 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:19:01,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:19:01,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:19:01,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:19:01,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:19:01,910 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:19:01,914 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:19:01,915 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:19:01,915 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:19:01,918 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:19:01,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:19:01,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:19:01,920 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:19:01,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:19:01,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:19:01,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:19:01,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:19:01,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:19:01,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:19:01,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:19:01,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:19:01,927 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:19:01,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:19:01,929 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 14:19:01,978 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:19:01,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:19:01,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:19:01,981 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:19:01,982 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:19:01,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:19:01,982 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:19:01,982 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:19:01,983 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:19:01,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:19:01,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:19:01,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:19:01,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:19:01,985 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:19:01,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:19:01,985 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:19:01,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:19:01,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:19:01,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:19:01,986 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:19:01,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:19:01,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:19:01,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:19:01,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:19:01,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:19:01,987 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:19:01,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:19:01,987 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:19:01,988 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:19:01,988 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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;log-additional-information=true; [2020-09-25 14:19:02,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:19:02,447 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:19:02,451 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:19:02,453 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:19:02,453 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:19:02,455 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product29.cil.c [2020-09-25 14:19:02,528 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a6b39c8dc/c594270f638b401a916fd9ddc91bd4aa/FLAG4988a37b7 [2020-09-25 14:19:03,142 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:19:03,143 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product29.cil.c [2020-09-25 14:19:03,158 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a6b39c8dc/c594270f638b401a916fd9ddc91bd4aa/FLAG4988a37b7 [2020-09-25 14:19:03,404 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a6b39c8dc/c594270f638b401a916fd9ddc91bd4aa [2020-09-25 14:19:03,419 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:19:03,425 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:19:03,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:19:03,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:19:03,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:19:03,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:19:03" (1/1) ... [2020-09-25 14:19:03,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be095dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:03, skipping insertion in model container [2020-09-25 14:19:03,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:19:03" (1/1) ... [2020-09-25 14:19:03,456 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:19:03,547 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:19:04,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:19:04,124 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:19:04,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:19:04,256 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:19:04,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:04 WrapperNode [2020-09-25 14:19:04,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:19:04,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:19:04,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:19:04,258 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:19:04,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:04" (1/1) ... [2020-09-25 14:19:04,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:04" (1/1) ... [2020-09-25 14:19:04,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:04" (1/1) ... [2020-09-25 14:19:04,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:04" (1/1) ... [2020-09-25 14:19:04,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:04" (1/1) ... [2020-09-25 14:19:04,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:04" (1/1) ... [2020-09-25 14:19:04,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:04" (1/1) ... [2020-09-25 14:19:04,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:19:04,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:19:04,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:19:04,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:19:04,372 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:04" (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 14:19:04,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:19:04,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:19:04,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:19:04,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 14:19:04,475 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:19:04,475 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:19:04,475 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:19:04,476 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:19:04,477 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:19:04,477 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:19:04,477 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 14:19:04,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:19:04,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:19:04,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:19:04,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:19:04,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:19:04,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:19:04,479 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:19:04,479 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:19:04,480 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:19:04,480 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:19:04,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:19:04,481 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:19:04,481 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:19:04,481 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:19:04,482 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:19:04,482 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:19:04,482 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:19:04,482 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:19:04,482 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 14:19:04,483 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:19:04,483 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 14:19:04,483 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:19:04,483 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:19:04,483 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:19:04,483 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:19:04,484 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:19:04,484 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 14:19:04,484 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:19:04,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:19:04,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:19:04,484 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:19:04,485 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:19:04,485 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:19:04,485 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:19:04,485 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:19:04,485 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 14:19:04,485 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:19:04,486 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:19:04,486 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:19:04,486 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:19:04,487 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 14:19:04,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:19:04,487 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:19:04,487 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:19:04,487 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:19:04,488 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:19:04,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:19:04,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:19:04,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:19:04,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:19:04,488 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:19:04,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:19:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:19:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:19:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:19:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:19:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:19:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:19:04,491 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:19:04,491 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:19:04,492 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:19:04,493 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:19:04,493 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:19:04,493 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:19:04,493 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:19:04,493 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:19:04,493 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:19:04,493 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:19:04,494 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:19:04,494 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:19:04,494 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:19:04,494 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:19:04,494 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:19:04,495 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:19:04,495 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 14:19:04,496 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 14:19:04,496 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:19:04,496 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 14:19:04,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:19:04,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:19:04,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:19:05,639 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:19:05,639 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:19:05,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:19:05 BoogieIcfgContainer [2020-09-25 14:19:05,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:19:05,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:19:05,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:19:05,653 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:19:05,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:19:03" (1/3) ... [2020-09-25 14:19:05,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e807eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:19:05, skipping insertion in model container [2020-09-25 14:19:05,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:04" (2/3) ... [2020-09-25 14:19:05,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e807eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:19:05, skipping insertion in model container [2020-09-25 14:19:05,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:19:05" (3/3) ... [2020-09-25 14:19:05,658 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product29.cil.c [2020-09-25 14:19:05,671 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:19:05,685 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:19:05,709 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:19:05,751 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:19:05,751 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:19:05,751 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:19:05,751 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:19:05,751 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:19:05,752 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:19:05,752 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:19:05,752 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:19:05,793 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states. [2020-09-25 14:19:05,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 14:19:05,814 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:19:05,815 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:19:05,816 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:19:05,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:19:05,824 INFO L82 PathProgramCache]: Analyzing trace with hash 2092560802, now seen corresponding path program 1 times [2020-09-25 14:19:05,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:19:05,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2008515487] [2020-09-25 14:19:05,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:19:06,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:06,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:06,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:06,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:10,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:10,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 14:19:10,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:19:10,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3995 [2020-09-25 14:19:10,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:10,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:10,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:10,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 14:19:10,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 14:19:10,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 14:19:10,770 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:19:10,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:19:10,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:10,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:11,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:11,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:19:11,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:11,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-09-25 14:19:11,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:11,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:11,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:11,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:11,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 14:19:11,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:11,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:19:11,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:11,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:11,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:11,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:11,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:11,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:19:11,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:11,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:11,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:11,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:11,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:11,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:11,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:19:11,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:11,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:11,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:11,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:11,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:11,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:19:11,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:11,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:11,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:11,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:11,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:11,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:11,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:19:11,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:11,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:11,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:11,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:11,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:11,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:19:11,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:11,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:11,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:11,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:11,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:19:11,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:11,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:19:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:11,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:11,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:11,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:11,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:11,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:19:11,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:11,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:11,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:11,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:11,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:11,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:11,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 14:19:11,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:11,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:11,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:11,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:11,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:11,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:19:11,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:11,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:11,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:11,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:11,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:11,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:11,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 14:19:11,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:11,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:11,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:11,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:11,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:11,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:19:11,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:11,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:11,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:11,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:11,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:11,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:11,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 14:19:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:11,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:11,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:11,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:11,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:11,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:19:11,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:11,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:11,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:11,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:11,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:11,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:11,353 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 14:19:11,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2008515487] [2020-09-25 14:19:11,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:19:11,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:19:11,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633008157] [2020-09-25 14:19:11,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:19:11,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:19:11,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:19:11,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:19:11,391 INFO L87 Difference]: Start difference. First operand 316 states. Second operand 4 states. [2020-09-25 14:19:11,979 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:19:13,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:19:13,270 INFO L93 Difference]: Finished difference Result 477 states and 570 transitions. [2020-09-25 14:19:13,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:19:13,273 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2020-09-25 14:19:13,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:19:13,292 INFO L225 Difference]: With dead ends: 477 [2020-09-25 14:19:13,292 INFO L226 Difference]: Without dead ends: 296 [2020-09-25 14:19:13,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 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 14:19:13,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-09-25 14:19:13,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 255. [2020-09-25 14:19:13,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-25 14:19:13,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 277 transitions. [2020-09-25 14:19:13,411 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 277 transitions. Word has length 153 [2020-09-25 14:19:13,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:19:13,412 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 277 transitions. [2020-09-25 14:19:13,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:19:13,412 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 277 transitions. [2020-09-25 14:19:13,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 14:19:13,418 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:19:13,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:19:13,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:19:13,423 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:19:13,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:19:13,423 INFO L82 PathProgramCache]: Analyzing trace with hash 195971130, now seen corresponding path program 1 times [2020-09-25 14:19:13,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:19:13,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [635449451] [2020-09-25 14:19:13,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:19:13,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:13,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:13,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:16,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:16,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 14:19:16,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:19:16,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3165 [2020-09-25 14:19:16,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:16,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:16,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 14:19:16,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 14:19:16,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-09-25 14:19:16,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:19:17,019 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:19:17,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:19:17,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:17,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:17,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:17,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:19:17,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:17,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-09-25 14:19:17,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:17,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:17,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:17,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:17,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 14:19:17,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:17,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:19:17,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:17,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:17,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:17,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:17,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:17,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:19:17,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:17,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:17,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:17,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:17,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:17,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:17,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:19:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:17,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:17,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:17,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:17,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:17,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:19:17,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:17,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:17,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:17,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:17,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:17,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:17,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:19:17,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:17,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:17,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:17,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:17,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:17,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:19:17,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:17,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:17,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:17,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:17,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:19:17,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:17,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:19:17,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:17,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:17,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:17,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:17,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:17,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:19:17,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:17,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:17,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:17,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:17,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:17,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:19:17,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 14:19:17,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:17,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:17,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:17,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 14:19:17,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:17,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:19:17,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:17,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:17,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:17,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:17,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 14:19:17,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:17,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:19:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:17,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:17,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:17,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:19:17,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:17,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:19:17,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:17,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:17,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:17,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:17,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:17,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:17,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:19:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:17,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:17,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:17,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:17,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:17,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:19:17,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:17,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:17,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:17,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:17,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:17,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:17,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 14:19:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:17,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:17,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:17,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:17,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:17,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:19:17,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:17,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:17,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:17,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:17,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:19:17,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:19:17,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 14:19:17,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:17,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:17,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:17,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:17,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:17,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:19:17,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:17,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:17,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:19:17,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:17,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:19:17,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:17,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 14:19:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:17,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:17,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:17,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:17,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:17,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:19:17,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:17,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:17,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:17,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:17,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:17,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:17,561 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 14:19:17,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [635449451] [2020-09-25 14:19:17,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:19:17,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 14:19:17,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801221012] [2020-09-25 14:19:17,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:19:17,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:19:17,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:19:17,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:19:17,566 INFO L87 Difference]: Start difference. First operand 255 states and 277 transitions. Second operand 9 states. [2020-09-25 14:19:18,134 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:19:20,448 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:19:20,893 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:19:21,270 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:19:21,622 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:19:21,934 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:19:22,440 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:19:22,758 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:19:23,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:19:23,707 INFO L93 Difference]: Finished difference Result 649 states and 811 transitions. [2020-09-25 14:19:23,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 14:19:23,708 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 167 [2020-09-25 14:19:23,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:19:23,716 INFO L225 Difference]: With dead ends: 649 [2020-09-25 14:19:23,717 INFO L226 Difference]: Without dead ends: 480 [2020-09-25 14:19:23,721 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 14:19:23,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-09-25 14:19:23,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 387. [2020-09-25 14:19:23,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2020-09-25 14:19:23,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 433 transitions. [2020-09-25 14:19:23,814 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 433 transitions. Word has length 167 [2020-09-25 14:19:23,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:19:23,815 INFO L479 AbstractCegarLoop]: Abstraction has 387 states and 433 transitions. [2020-09-25 14:19:23,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:19:23,815 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 433 transitions. [2020-09-25 14:19:23,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 14:19:23,821 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:19:23,821 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:19:23,821 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:19:23,822 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:19:23,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:19:23,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1023073227, now seen corresponding path program 1 times [2020-09-25 14:19:23,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:19:23,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [132204113] [2020-09-25 14:19:23,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:19:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 14:19:23,894 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 14:19:23,895 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 14:19:23,900 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:19:23,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:19:23 BoogieIcfgContainer [2020-09-25 14:19:23,929 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 14:19:23,931 INFO L168 Benchmark]: Toolchain (without parser) took 20510.25 ms. Allocated memory was 145.2 MB in the beginning and 486.0 MB in the end (delta: 340.8 MB). Free memory was 102.2 MB in the beginning and 264.3 MB in the end (delta: -162.0 MB). Peak memory consumption was 178.8 MB. Max. memory is 7.1 GB. [2020-09-25 14:19:23,932 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 14:19:23,933 INFO L168 Benchmark]: CACSL2BoogieTranslator took 826.40 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 101.6 MB in the beginning and 173.3 MB in the end (delta: -71.7 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2020-09-25 14:19:23,934 INFO L168 Benchmark]: Boogie Preprocessor took 107.56 ms. Allocated memory is still 203.9 MB. Free memory was 173.3 MB in the beginning and 169.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-25 14:19:23,935 INFO L168 Benchmark]: RCFGBuilder took 1281.40 ms. Allocated memory was 203.9 MB in the beginning and 237.5 MB in the end (delta: 33.6 MB). Free memory was 169.2 MB in the beginning and 178.7 MB in the end (delta: -9.5 MB). Peak memory consumption was 84.7 MB. Max. memory is 7.1 GB. [2020-09-25 14:19:23,936 INFO L168 Benchmark]: TraceAbstraction took 18280.73 ms. Allocated memory was 237.5 MB in the beginning and 486.0 MB in the end (delta: 248.5 MB). Free memory was 177.2 MB in the beginning and 264.3 MB in the end (delta: -87.0 MB). Peak memory consumption was 161.5 MB. Max. memory is 7.1 GB. [2020-09-25 14:19:23,940 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 826.40 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 101.6 MB in the beginning and 173.3 MB in the end (delta: -71.7 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.56 ms. Allocated memory is still 203.9 MB. Free memory was 173.3 MB in the beginning and 169.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1281.40 ms. Allocated memory was 203.9 MB in the beginning and 237.5 MB in the end (delta: 33.6 MB). Free memory was 169.2 MB in the beginning and 178.7 MB in the end (delta: -9.5 MB). Peak memory consumption was 84.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18280.73 ms. Allocated memory was 237.5 MB in the beginning and 486.0 MB in the end (delta: 248.5 MB). Free memory was 177.2 MB in the beginning and 264.3 MB in the end (delta: -87.0 MB). Peak memory consumption was 161.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 580]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L83] int waterLevel = 1; [L84] int methaneLevelCritical = 0; [L341] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L585] int cleanupTimeShifts = 4; [L686] int pumpRunning = 0; [L687] int systemActive = 1; [L661] int retValue_acc ; [L662] int tmp ; [L666] FCALL select_helpers() [L667] FCALL select_features() [L668] CALL, EXPR valid_product() [L567] int retValue_acc ; [L570] retValue_acc = 1 [L571] return (retValue_acc); [L668] RET, EXPR valid_product() [L668] tmp = valid_product() [L670] COND TRUE \read(tmp) [L672] FCALL setup() [L673] CALL runTest() [L655] CALL test() [L882] int splverifierCounter ; [L883] int tmp ; [L884] int tmp___0 ; [L885] int tmp___1 ; [L886] int tmp___2 ; [L889] splverifierCounter = 0 [L891] COND TRUE 1 [L893] COND TRUE splverifierCounter < 4 [L899] tmp = __VERIFIER_nondet_int() [L901] COND TRUE \read(tmp) [L903] CALL waterRise() [L101] COND TRUE waterLevel < 2 [L102] waterLevel = waterLevel + 1 [L903] RET waterRise() [L909] tmp___0 = __VERIFIER_nondet_int() [L911] COND FALSE !(\read(tmp___0)) [L919] tmp___2 = __VERIFIER_nondet_int() [L921] COND TRUE \read(tmp___2) [L934] CALL timeShift() [L693] COND FALSE !(\read(pumpRunning)) [L700] COND TRUE \read(systemActive) [L702] CALL processEnvironment() [L748] int tmp ; [L751] COND FALSE !(\read(pumpRunning)) [L766] CALL processEnvironment__wrappee__methaneQuery() [L722] int tmp ; [L725] COND FALSE !(\read(pumpRunning)) [L740] FCALL processEnvironment__wrappee__base() [L766] RET processEnvironment__wrappee__methaneQuery() [L702] RET processEnvironment() [L708] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L122] int retValue_acc ; [L125] retValue_acc = methaneLevelCritical [L126] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L154] int retValue_acc ; [L157] retValue_acc = waterLevel [L158] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L817] int retValue_acc ; [L820] retValue_acc = pumpRunning [L821] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L580] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 630 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 516 SDtfs, 842 SDslu, 699 SDs, 0 SdLazy, 1611 SolverSat, 263 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=387occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 134 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.1s InterpolantComputationTime, 501 NumberOfCodeBlocks, 501 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 318 ConstructedInterpolants, 0 QuantifiedInterpolants, 135294 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...