/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_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:17:54,439 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:17:54,442 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:17:54,468 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:17:54,468 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:17:54,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:17:54,471 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:17:54,473 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:17:54,474 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:17:54,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:17:54,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:17:54,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:17:54,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:17:54,479 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:17:54,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:17:54,482 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:17:54,483 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:17:54,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:17:54,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:17:54,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:17:54,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:17:54,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:17:54,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:17:54,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:17:54,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:17:54,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:17:54,497 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:17:54,498 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:17:54,499 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:17:54,500 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:17:54,500 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:17:54,501 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:17:54,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:17:54,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:17:54,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:17:54,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:17:54,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:17:54,506 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:17:54,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:17:54,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:17:54,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:17:54,509 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 14:17:54,543 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:17:54,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:17:54,545 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:17:54,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:17:54,545 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:17:54,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:17:54,546 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:17:54,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:17:54,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:17:54,547 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:17:54,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:17:54,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:17:54,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:17:54,548 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:17:54,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:17:54,548 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:17:54,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:17:54,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:17:54,550 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:17:54,550 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:17:54,550 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:17:54,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:17:54,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:17:54,551 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:17:54,552 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:17:54,552 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:17:54,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:17:54,552 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:17:54,552 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:17:54,552 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 14:17:54,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:17:55,016 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:17:55,021 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:17:55,022 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:17:55,023 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:17:55,024 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c [2020-09-25 14:17:55,113 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d924d455d/ef5295bc686741e8830414be4d063c5d/FLAG00d242bd0 [2020-09-25 14:17:55,656 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:17:55,657 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c [2020-09-25 14:17:55,670 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d924d455d/ef5295bc686741e8830414be4d063c5d/FLAG00d242bd0 [2020-09-25 14:17:55,945 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d924d455d/ef5295bc686741e8830414be4d063c5d [2020-09-25 14:17:55,959 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:17:55,964 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:17:55,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:17:55,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:17:55,970 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:17:55,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:17:55" (1/1) ... [2020-09-25 14:17:55,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:55, skipping insertion in model container [2020-09-25 14:17:55,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:17:55" (1/1) ... [2020-09-25 14:17:55,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:17:56,037 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:17:56,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:17:56,464 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:17:56,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:17:56,703 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:17:56,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:56 WrapperNode [2020-09-25 14:17:56,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:17:56,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:17:56,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:17:56,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:17:56,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:56" (1/1) ... [2020-09-25 14:17:56,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:56" (1/1) ... [2020-09-25 14:17:56,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:56" (1/1) ... [2020-09-25 14:17:56,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:56" (1/1) ... [2020-09-25 14:17:56,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:56" (1/1) ... [2020-09-25 14:17:56,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:56" (1/1) ... [2020-09-25 14:17:56,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:56" (1/1) ... [2020-09-25 14:17:56,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:17:56,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:17:56,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:17:56,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:17:56,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:56" (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 14:17:56,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:17:56,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:17:56,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:17:56,939 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:17:56,939 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:17:56,939 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:17:56,939 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:17:56,939 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:17:56,940 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:17:56,940 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:17:56,940 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:17:56,940 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 14:17:56,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:17:56,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:17:56,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:17:56,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:17:56,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:17:56,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:17:56,942 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:17:56,942 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:17:56,943 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:17:56,943 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:17:56,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:17:56,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 14:17:56,944 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:17:56,945 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:17:56,945 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:17:56,945 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:17:56,946 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:17:56,946 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:17:56,947 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:17:56,947 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:17:56,947 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:17:56,947 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:17:56,947 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:17:56,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:17:56,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:17:56,948 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:17:56,948 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:17:56,948 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:17:56,948 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 14:17:56,949 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:17:56,949 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:17:56,949 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:17:56,949 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:17:56,949 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:17:56,949 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:17:56,950 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:17:56,950 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:17:56,950 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:17:56,950 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:17:56,950 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 14:17:56,951 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:17:56,951 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:17:56,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:17:56,951 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:17:56,951 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:17:56,952 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:17:56,952 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:17:56,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:17:56,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:17:56,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:17:56,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:17:56,953 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:17:56,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:17:56,953 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:17:56,953 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:17:56,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:17:56,954 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:17:56,954 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:17:56,954 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:17:56,956 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:17:56,956 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:17:56,956 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:17:56,956 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:17:56,957 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:17:56,957 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:17:56,957 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:17:56,957 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:17:56,957 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:17:56,957 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:17:56,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:17:56,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:17:56,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:17:58,110 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:17:58,111 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:17:58,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:17:58 BoogieIcfgContainer [2020-09-25 14:17:58,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:17:58,120 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:17:58,120 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:17:58,123 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:17:58,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:17:55" (1/3) ... [2020-09-25 14:17:58,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d8c1516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:17:58, skipping insertion in model container [2020-09-25 14:17:58,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:17:56" (2/3) ... [2020-09-25 14:17:58,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d8c1516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:17:58, skipping insertion in model container [2020-09-25 14:17:58,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:17:58" (3/3) ... [2020-09-25 14:17:58,128 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product03.cil.c [2020-09-25 14:17:58,140 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:17:58,151 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:17:58,173 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:17:58,207 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:17:58,207 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:17:58,207 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:17:58,207 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:17:58,208 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:17:58,208 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:17:58,208 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:17:58,208 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:17:58,237 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states. [2020-09-25 14:17:58,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 14:17:58,254 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:17:58,256 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 14:17:58,256 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:17:58,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:17:58,265 INFO L82 PathProgramCache]: Analyzing trace with hash -995917748, now seen corresponding path program 1 times [2020-09-25 14:17:58,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:17:58,277 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1235852239] [2020-09-25 14:17:58,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:17:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:17:58,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:17:58,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:00,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:03,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:03,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 14:18:03,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:18:03,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 14:18:03,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:03,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:03,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:18:03,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 14:18:03,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 14:18:03,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:18:04,005 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:18:04,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:18:04,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:04,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:04,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:04,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:18:04,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:04,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-09-25 14:18:04,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:04,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:04,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:04,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:04,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 14:18:04,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:04,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:18:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:04,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:04,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:04,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:04,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:04,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:18:04,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:04,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:04,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:04,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:04,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:18:04,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:04,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:18:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:04,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:04,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:04,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:04,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:04,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:18:04,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:04,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:04,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:04,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:04,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:18:04,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:04,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:18:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:04,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:04,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:04,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:04,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:04,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:18:04,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:04,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:04,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:04,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:04,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:18:04,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:04,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:18:04,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:04,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:04,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:04,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:04,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:04,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:18:04,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:04,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:04,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:04,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:04,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:18:04,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:04,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 14:18:04,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:04,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:04,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:04,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:04,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:04,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:18:04,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:04,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:04,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:04,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:18:04,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:04,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:04,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 14:18:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:04,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:04,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:04,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:04,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:04,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:18:04,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:04,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:04,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:04,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:18:04,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:04,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:04,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 14:18:04,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:04,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:04,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:04,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:04,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:04,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:18:04,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:04,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:04,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:04,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:18:04,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:04,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:04,508 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 14:18:04,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1235852239] [2020-09-25 14:18:04,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:18:04,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:18:04,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139175461] [2020-09-25 14:18:04,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:18:04,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:18:04,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:18:04,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:18:04,540 INFO L87 Difference]: Start difference. First operand 267 states. Second operand 4 states. [2020-09-25 14:18:05,047 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:18:06,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:18:06,494 INFO L93 Difference]: Finished difference Result 513 states and 628 transitions. [2020-09-25 14:18:06,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:18:06,502 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2020-09-25 14:18:06,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:18:06,539 INFO L225 Difference]: With dead ends: 513 [2020-09-25 14:18:06,539 INFO L226 Difference]: Without dead ends: 363 [2020-09-25 14:18:06,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:18:06,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2020-09-25 14:18:06,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 298. [2020-09-25 14:18:06,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-09-25 14:18:06,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 327 transitions. [2020-09-25 14:18:06,686 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 327 transitions. Word has length 153 [2020-09-25 14:18:06,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:18:06,687 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 327 transitions. [2020-09-25 14:18:06,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:18:06,687 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 327 transitions. [2020-09-25 14:18:06,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-25 14:18:06,692 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:18:06,692 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] [2020-09-25 14:18:06,692 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:18:06,693 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:18:06,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:18:06,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1143741879, now seen corresponding path program 1 times [2020-09-25 14:18:06,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:18:06,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1627031709] [2020-09-25 14:18:06,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:18:06,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:06,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:07,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:09,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:09,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 14:18:09,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:18:09,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3122 [2020-09-25 14:18:09,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:09,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:09,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 14:18:09,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 14:18:09,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-25 14:18:09,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:10,232 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:18:10,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:18:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:10,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:10,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:10,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:18:10,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:10,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-09-25 14:18:10,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:10,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:10,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:10,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:10,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 14:18:10,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:10,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:18:10,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:10,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:10,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:10,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:10,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:10,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:18:10,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:10,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:10,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:10,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:10,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:18:10,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:10,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:18:10,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:10,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:10,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:10,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:10,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:10,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:18:10,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:10,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:10,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:10,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:10,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:18:10,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:10,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:18:10,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:10,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:10,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:10,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:10,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:10,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:18:10,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:10,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:10,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:10,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:10,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:18:10,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:10,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:18:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:10,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:10,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:10,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:10,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:10,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:18:10,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:10,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:10,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:10,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:10,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:18:10,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:10,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 14:18:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:10,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:10,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:10,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:10,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:10,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:18:10,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:10,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:10,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:10,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:10,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:18:10,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:10,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 14:18:10,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:10,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:10,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:10,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:10,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:10,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:18:10,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:10,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:10,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:10,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:10,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:18:10,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:10,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 14:18:10,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:10,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:10,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:10,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:10,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:10,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:18:10,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:10,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:10,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:18:10,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:10,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:18:10,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:10,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 14:18:10,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:10,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:10,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:10,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:10,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:10,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:18:10,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:10,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:10,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:10,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:18:10,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:10,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:18:10,758 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 14:18:10,759 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1627031709] [2020-09-25 14:18:10,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:18:10,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 14:18:10,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552787712] [2020-09-25 14:18:10,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:18:10,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:18:10,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:18:10,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:18:10,763 INFO L87 Difference]: Start difference. First operand 298 states and 327 transitions. Second operand 9 states. [2020-09-25 14:18:11,229 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:18:12,546 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:18:12,890 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:18:13,210 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:18:13,532 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:18:13,834 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:18:14,232 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:18:14,527 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:18:14,903 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:18:15,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:18:15,575 INFO L93 Difference]: Finished difference Result 730 states and 892 transitions. [2020-09-25 14:18:15,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 14:18:15,584 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2020-09-25 14:18:15,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:18:15,596 INFO L225 Difference]: With dead ends: 730 [2020-09-25 14:18:15,596 INFO L226 Difference]: Without dead ends: 509 [2020-09-25 14:18:15,603 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2020-09-25 14:18:15,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2020-09-25 14:18:15,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 455. [2020-09-25 14:18:15,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2020-09-25 14:18:15,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 513 transitions. [2020-09-25 14:18:15,703 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 513 transitions. Word has length 157 [2020-09-25 14:18:15,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:18:15,703 INFO L479 AbstractCegarLoop]: Abstraction has 455 states and 513 transitions. [2020-09-25 14:18:15,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:18:15,704 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 513 transitions. [2020-09-25 14:18:15,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 14:18:15,708 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:18:15,708 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] [2020-09-25 14:18:15,708 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:18:15,709 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:18:15,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:18:15,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1257129521, now seen corresponding path program 1 times [2020-09-25 14:18:15,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:18:15,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1896551508] [2020-09-25 14:18:15,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:18:15,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 14:18:15,781 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 14:18:15,781 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 14:18:15,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:18:15,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:18:15 BoogieIcfgContainer [2020-09-25 14:18:15,820 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 14:18:15,823 INFO L168 Benchmark]: Toolchain (without parser) took 19861.83 ms. Allocated memory was 145.8 MB in the beginning and 519.6 MB in the end (delta: 373.8 MB). Free memory was 101.1 MB in the beginning and 133.5 MB in the end (delta: -32.4 MB). Peak memory consumption was 341.4 MB. Max. memory is 7.1 GB. [2020-09-25 14:18:15,825 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 14:18:15,826 INFO L168 Benchmark]: CACSL2BoogieTranslator took 739.48 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 100.4 MB in the beginning and 173.1 MB in the end (delta: -72.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2020-09-25 14:18:15,827 INFO L168 Benchmark]: Boogie Preprocessor took 138.74 ms. Allocated memory is still 202.9 MB. Free memory was 173.1 MB in the beginning and 168.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-25 14:18:15,829 INFO L168 Benchmark]: RCFGBuilder took 1272.64 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 168.9 MB in the beginning and 183.8 MB in the end (delta: -14.9 MB). Peak memory consumption was 87.0 MB. Max. memory is 7.1 GB. [2020-09-25 14:18:15,836 INFO L168 Benchmark]: TraceAbstraction took 17701.02 ms. Allocated memory was 234.9 MB in the beginning and 519.6 MB in the end (delta: 284.7 MB). Free memory was 183.8 MB in the beginning and 133.5 MB in the end (delta: 50.3 MB). Peak memory consumption was 335.0 MB. Max. memory is 7.1 GB. [2020-09-25 14:18:15,846 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 739.48 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 100.4 MB in the beginning and 173.1 MB in the end (delta: -72.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 138.74 ms. Allocated memory is still 202.9 MB. Free memory was 173.1 MB in the beginning and 168.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1272.64 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 168.9 MB in the beginning and 183.8 MB in the end (delta: -14.9 MB). Peak memory consumption was 87.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17701.02 ms. Allocated memory was 234.9 MB in the beginning and 519.6 MB in the end (delta: 284.7 MB). Free memory was 183.8 MB in the beginning and 133.5 MB in the end (delta: 50.3 MB). Peak memory consumption was 335.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 650]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L119] int pumpRunning = 0; [L120] int systemActive = 1; [L411] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L690] int cleanupTimeShifts = 4; [L786] int waterLevel = 1; [L787] int methaneLevelCritical = 0; [L763] int retValue_acc ; [L764] int tmp ; [L768] FCALL select_helpers() [L769] FCALL select_features() [L770] CALL, EXPR valid_product() [L637] int retValue_acc ; [L640] retValue_acc = 1 [L641] return (retValue_acc); [L770] RET, EXPR valid_product() [L770] tmp = valid_product() [L772] COND TRUE \read(tmp) [L774] FCALL setup() [L775] CALL runTest() [L757] CALL test() [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) [L67] CALL waterRise() [L804] COND TRUE waterLevel < 2 [L805] waterLevel = waterLevel + 1 [L67] RET waterRise() [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L100] CALL timeShift() [L127] COND FALSE !(\read(pumpRunning)) [L134] COND TRUE \read(systemActive) [L136] FCALL processEnvironment() [L142] CALL __utac_acc__Specification3_spec__1() [L657] int tmp ; [L658] int tmp___0 ; [L659] int tmp___1 ; [L663] CALL, EXPR isMethaneLevelCritical() [L825] int retValue_acc ; [L828] retValue_acc = methaneLevelCritical [L829] return (retValue_acc); [L663] RET, EXPR isMethaneLevelCritical() [L663] tmp = isMethaneLevelCritical() [L665] COND FALSE !(\read(tmp)) [L669] CALL, EXPR getWaterLevel() [L857] int retValue_acc ; [L860] retValue_acc = waterLevel [L861] return (retValue_acc); [L669] RET, EXPR getWaterLevel() [L669] tmp___0 = getWaterLevel() [L671] COND TRUE tmp___0 == 2 [L673] CALL, EXPR isPumpRunning() [L182] int retValue_acc ; [L185] retValue_acc = pumpRunning [L186] return (retValue_acc); [L673] RET, EXPR isPumpRunning() [L673] tmp___1 = isPumpRunning() [L675] COND FALSE !(\read(tmp___1)) [L679] CALL __automaton_fail() [L650] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 584 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 6.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 418 SDtfs, 611 SDslu, 783 SDs, 0 SdLazy, 1312 SolverSat, 198 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=455occurred 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: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 119 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 9.7s InterpolantComputationTime, 481 NumberOfCodeBlocks, 481 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 308 ConstructedInterpolants, 0 QuantifiedInterpolants, 135060 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...