/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --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_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 01:14:55,774 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 01:14:55,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 01:14:55,823 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 01:14:55,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 01:14:55,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 01:14:55,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 01:14:55,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 01:14:55,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 01:14:55,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 01:14:55,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 01:14:55,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 01:14:55,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 01:14:55,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 01:14:55,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 01:14:55,852 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 01:14:55,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 01:14:55,854 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 01:14:55,860 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 01:14:55,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 01:14:55,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 01:14:55,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 01:14:55,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 01:14:55,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 01:14:55,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 01:14:55,876 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 01:14:55,876 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 01:14:55,877 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 01:14:55,879 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 01:14:55,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 01:14:55,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 01:14:55,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 01:14:55,883 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 01:14:55,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 01:14:55,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 01:14:55,886 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 01:14:55,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 01:14:55,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 01:14:55,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 01:14:55,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 01:14:55,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 01:14:55,891 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 [2020-08-22 01:14:55,935 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 01:14:55,935 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 01:14:55,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 01:14:55,937 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 01:14:55,937 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 01:14:55,938 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 01:14:55,938 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 01:14:55,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 01:14:55,938 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 01:14:55,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 01:14:55,940 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 01:14:55,940 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 01:14:55,940 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 01:14:55,941 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 01:14:55,941 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 01:14:55,941 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 01:14:55,941 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 01:14:55,942 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 01:14:55,942 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 01:14:55,942 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 01:14:55,942 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 01:14:55,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 01:14:55,942 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 01:14:55,943 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 01:14:55,943 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 01:14:55,943 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 01:14:55,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 01:14:55,943 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 01:14:55,944 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 01:14:55,944 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-08-22 01:14:56,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 01:14:56,248 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 01:14:56,251 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 01:14:56,253 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 01:14:56,253 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 01:14:56,254 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-08-22 01:14:56,331 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c10598a2c/37d48b200e4f4267bc729fe374d92503/FLAG70bc156aa [2020-08-22 01:14:56,843 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 01:14:56,844 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-08-22 01:14:56,862 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c10598a2c/37d48b200e4f4267bc729fe374d92503/FLAG70bc156aa [2020-08-22 01:14:57,161 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c10598a2c/37d48b200e4f4267bc729fe374d92503 [2020-08-22 01:14:57,174 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 01:14:57,177 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 01:14:57,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 01:14:57,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 01:14:57,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 01:14:57,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 01:14:57" (1/1) ... [2020-08-22 01:14:57,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:14:57, skipping insertion in model container [2020-08-22 01:14:57,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 01:14:57" (1/1) ... [2020-08-22 01:14:57,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 01:14:57,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 01:14:57,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 01:14:57,799 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 01:14:57,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 01:14:57,928 INFO L208 MainTranslator]: Completed translation [2020-08-22 01:14:57,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:14:57 WrapperNode [2020-08-22 01:14:57,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 01:14:57,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 01:14:57,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 01:14:57,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 01:14:57,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:14:57" (1/1) ... [2020-08-22 01:14:57,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:14:57" (1/1) ... [2020-08-22 01:14:57,964 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:14:57" (1/1) ... [2020-08-22 01:14:57,964 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:14:57" (1/1) ... [2020-08-22 01:14:57,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:14:57" (1/1) ... [2020-08-22 01:14:58,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:14:57" (1/1) ... [2020-08-22 01:14:58,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:14:57" (1/1) ... [2020-08-22 01:14:58,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 01:14:58,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 01:14:58,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 01:14:58,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 01:14:58,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:14:57" (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 [2020-08-22 01:14:58,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 01:14:58,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 01:14:58,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 01:14:58,088 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 01:14:58,088 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 01:14:58,088 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 01:14:58,089 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 01:14:58,089 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 01:14:58,089 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 01:14:58,089 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 01:14:58,089 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 01:14:58,089 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 01:14:58,090 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 01:14:58,090 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 01:14:58,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-22 01:14:58,090 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 01:14:58,090 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 01:14:58,090 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 01:14:58,091 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 01:14:58,091 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 01:14:58,091 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 01:14:58,091 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 01:14:58,091 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 01:14:58,091 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 01:14:58,091 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 01:14:58,092 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 01:14:58,092 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 01:14:58,092 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 01:14:58,092 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 01:14:58,092 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 01:14:58,092 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 01:14:58,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 01:14:58,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 01:14:58,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 01:14:58,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 01:14:58,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 01:14:58,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 01:14:58,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 01:14:58,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 01:14:58,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 01:14:58,094 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 01:14:58,094 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 01:14:58,094 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 01:14:58,094 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 01:14:58,095 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 01:14:58,095 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 01:14:58,095 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 01:14:58,095 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 01:14:58,095 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 01:14:58,095 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 01:14:58,096 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 01:14:58,096 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 01:14:58,096 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 01:14:58,096 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 01:14:58,096 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 01:14:58,096 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-22 01:14:58,097 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 01:14:58,097 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 01:14:58,097 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 01:14:58,097 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 01:14:58,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 01:14:58,097 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 01:14:58,097 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 01:14:58,098 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 01:14:58,098 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 01:14:58,098 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 01:14:58,098 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 01:14:58,098 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 01:14:58,098 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 01:14:58,098 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 01:14:58,099 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 01:14:58,099 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 01:14:58,099 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 01:14:58,099 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 01:14:58,099 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 01:14:58,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 01:14:58,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 01:14:58,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 01:14:58,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 01:14:58,101 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 01:14:58,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 01:14:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 01:14:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 01:14:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 01:14:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 01:14:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 01:14:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 01:14:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 01:14:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 01:14:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 01:14:59,108 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 01:14:59,108 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 01:14:59,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 01:14:59 BoogieIcfgContainer [2020-08-22 01:14:59,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 01:14:59,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 01:14:59,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 01:14:59,121 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 01:14:59,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 01:14:57" (1/3) ... [2020-08-22 01:14:59,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@346967f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 01:14:59, skipping insertion in model container [2020-08-22 01:14:59,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:14:57" (2/3) ... [2020-08-22 01:14:59,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@346967f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 01:14:59, skipping insertion in model container [2020-08-22 01:14:59,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 01:14:59" (3/3) ... [2020-08-22 01:14:59,126 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2020-08-22 01:14:59,136 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 01:14:59,146 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 01:14:59,158 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 01:14:59,182 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 01:14:59,182 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 01:14:59,182 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 01:14:59,182 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 01:14:59,190 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 01:14:59,190 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 01:14:59,190 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 01:14:59,190 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 01:14:59,214 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2020-08-22 01:14:59,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-22 01:14:59,224 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:14:59,226 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] [2020-08-22 01:14:59,227 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:14:59,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:14:59,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1153926417, now seen corresponding path program 1 times [2020-08-22 01:14:59,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:14:59,245 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [506660661] [2020-08-22 01:14:59,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:14:59,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:59,933 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 01:14:59,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:14:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:59,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:14:59,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:59,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 01:14:59,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:59,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 01:14:59,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:59,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 01:14:59,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:59,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 01:14:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:14:59,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 01:15:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:00,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 01:15:00,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:00,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:15:00,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [506660661] [2020-08-22 01:15:00,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:15:00,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 01:15:00,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802568927] [2020-08-22 01:15:00,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 01:15:00,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:15:00,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 01:15:00,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 01:15:00,060 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 3 states. [2020-08-22 01:15:01,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:15:01,110 INFO L93 Difference]: Finished difference Result 281 states and 368 transitions. [2020-08-22 01:15:01,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 01:15:01,112 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-08-22 01:15:01,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:15:01,130 INFO L225 Difference]: With dead ends: 281 [2020-08-22 01:15:01,131 INFO L226 Difference]: Without dead ends: 152 [2020-08-22 01:15:01,135 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 01:15:01,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-08-22 01:15:01,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 120. [2020-08-22 01:15:01,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-08-22 01:15:01,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 140 transitions. [2020-08-22 01:15:01,215 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 140 transitions. Word has length 52 [2020-08-22 01:15:01,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:15:01,218 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 140 transitions. [2020-08-22 01:15:01,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 01:15:01,220 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 140 transitions. [2020-08-22 01:15:01,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-08-22 01:15:01,225 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:15:01,225 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] [2020-08-22 01:15:01,226 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 01:15:01,226 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:15:01,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:15:01,227 INFO L82 PathProgramCache]: Analyzing trace with hash -548767927, now seen corresponding path program 1 times [2020-08-22 01:15:01,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:15:01,227 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1716870874] [2020-08-22 01:15:01,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:15:01,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:01,624 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 01:15:01,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:15:01,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:01,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:15:01,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:01,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 01:15:01,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:01,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 01:15:01,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:01,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 01:15:01,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:01,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 01:15:01,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:01,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-22 01:15:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:01,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-22 01:15:01,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:01,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:15:01,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1716870874] [2020-08-22 01:15:01,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:15:01,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 01:15:01,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433009543] [2020-08-22 01:15:01,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 01:15:01,670 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:15:01,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 01:15:01,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 01:15:01,671 INFO L87 Difference]: Start difference. First operand 120 states and 140 transitions. Second operand 4 states. [2020-08-22 01:15:02,095 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 01:15:02,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:15:02,791 INFO L93 Difference]: Finished difference Result 205 states and 249 transitions. [2020-08-22 01:15:02,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 01:15:02,792 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-08-22 01:15:02,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:15:02,794 INFO L225 Difference]: With dead ends: 205 [2020-08-22 01:15:02,794 INFO L226 Difference]: Without dead ends: 136 [2020-08-22 01:15:02,796 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 01:15:02,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-08-22 01:15:02,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 111. [2020-08-22 01:15:02,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-08-22 01:15:02,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 128 transitions. [2020-08-22 01:15:02,830 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 128 transitions. Word has length 53 [2020-08-22 01:15:02,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:15:02,830 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 128 transitions. [2020-08-22 01:15:02,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 01:15:02,830 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 128 transitions. [2020-08-22 01:15:02,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-22 01:15:02,833 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:15:02,833 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] [2020-08-22 01:15:02,833 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 01:15:02,833 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:15:02,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:15:02,834 INFO L82 PathProgramCache]: Analyzing trace with hash 196992317, now seen corresponding path program 1 times [2020-08-22 01:15:02,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:15:02,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1319129446] [2020-08-22 01:15:02,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:15:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:03,242 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 01:15:03,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:15:03,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:03,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:15:03,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:03,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 01:15:03,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:03,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 01:15:03,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:03,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 01:15:03,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:03,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 01:15:03,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:03,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 01:15:03,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:03,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-22 01:15:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:03,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:15:03,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1319129446] [2020-08-22 01:15:03,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:15:03,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 01:15:03,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931179138] [2020-08-22 01:15:03,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 01:15:03,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:15:03,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 01:15:03,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-22 01:15:03,331 INFO L87 Difference]: Start difference. First operand 111 states and 128 transitions. Second operand 8 states. [2020-08-22 01:15:03,745 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 01:15:04,041 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:15:04,298 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:15:04,536 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:15:05,247 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 01:15:06,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:15:06,764 INFO L93 Difference]: Finished difference Result 387 states and 477 transitions. [2020-08-22 01:15:06,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 01:15:06,764 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-08-22 01:15:06,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:15:06,770 INFO L225 Difference]: With dead ends: 387 [2020-08-22 01:15:06,770 INFO L226 Difference]: Without dead ends: 300 [2020-08-22 01:15:06,771 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-08-22 01:15:06,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-08-22 01:15:06,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 234. [2020-08-22 01:15:06,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-08-22 01:15:06,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 279 transitions. [2020-08-22 01:15:06,839 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 279 transitions. Word has length 57 [2020-08-22 01:15:06,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:15:06,840 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 279 transitions. [2020-08-22 01:15:06,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 01:15:06,840 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 279 transitions. [2020-08-22 01:15:06,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-22 01:15:06,843 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:15:06,843 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] [2020-08-22 01:15:06,843 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 01:15:06,844 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:15:06,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:15:06,844 INFO L82 PathProgramCache]: Analyzing trace with hash 925372224, now seen corresponding path program 1 times [2020-08-22 01:15:06,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:15:06,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2052918995] [2020-08-22 01:15:06,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:15:06,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:07,142 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 01:15:07,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:15:07,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:07,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:15:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:07,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 01:15:07,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:07,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 01:15:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:07,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 01:15:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:07,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 01:15:07,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:07,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 01:15:07,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:07,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-22 01:15:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:07,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 01:15:07,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:07,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:15:07,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2052918995] [2020-08-22 01:15:07,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:15:07,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 01:15:07,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887035369] [2020-08-22 01:15:07,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 01:15:07,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:15:07,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 01:15:07,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-22 01:15:07,230 INFO L87 Difference]: Start difference. First operand 234 states and 279 transitions. Second operand 8 states. [2020-08-22 01:15:07,626 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 01:15:08,877 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:15:09,199 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:15:09,480 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:15:09,710 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 01:15:10,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:15:10,329 INFO L93 Difference]: Finished difference Result 714 states and 935 transitions. [2020-08-22 01:15:10,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 01:15:10,331 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-08-22 01:15:10,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:15:10,337 INFO L225 Difference]: With dead ends: 714 [2020-08-22 01:15:10,337 INFO L226 Difference]: Without dead ends: 504 [2020-08-22 01:15:10,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-08-22 01:15:10,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-08-22 01:15:10,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 441. [2020-08-22 01:15:10,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-08-22 01:15:10,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 537 transitions. [2020-08-22 01:15:10,465 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 537 transitions. Word has length 63 [2020-08-22 01:15:10,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:15:10,466 INFO L479 AbstractCegarLoop]: Abstraction has 441 states and 537 transitions. [2020-08-22 01:15:10,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 01:15:10,466 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 537 transitions. [2020-08-22 01:15:10,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-22 01:15:10,469 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:15:10,469 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] [2020-08-22 01:15:10,470 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 01:15:10,470 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:15:10,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:15:10,470 INFO L82 PathProgramCache]: Analyzing trace with hash -910069242, now seen corresponding path program 1 times [2020-08-22 01:15:10,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:15:10,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [490625407] [2020-08-22 01:15:10,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:15:10,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 01:15:10,526 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 01:15:10,527 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 01:15:10,530 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 01:15:10,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 01:15:10 BoogieIcfgContainer [2020-08-22 01:15:10,551 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 01:15:10,552 INFO L168 Benchmark]: Toolchain (without parser) took 13377.06 ms. Allocated memory was 141.6 MB in the beginning and 478.2 MB in the end (delta: 336.6 MB). Free memory was 104.1 MB in the beginning and 362.2 MB in the end (delta: -258.2 MB). Peak memory consumption was 78.4 MB. Max. memory is 7.1 GB. [2020-08-22 01:15:10,553 INFO L168 Benchmark]: CDTParser took 0.82 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-22 01:15:10,554 INFO L168 Benchmark]: CACSL2BoogieTranslator took 750.40 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 103.9 MB in the beginning and 174.3 MB in the end (delta: -70.5 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2020-08-22 01:15:10,555 INFO L168 Benchmark]: Boogie Preprocessor took 91.49 ms. Allocated memory is still 204.5 MB. Free memory was 174.3 MB in the beginning and 169.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-08-22 01:15:10,556 INFO L168 Benchmark]: RCFGBuilder took 1095.73 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 169.6 MB in the beginning and 196.6 MB in the end (delta: -27.0 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. [2020-08-22 01:15:10,557 INFO L168 Benchmark]: TraceAbstraction took 11432.50 ms. Allocated memory was 235.4 MB in the beginning and 478.2 MB in the end (delta: 242.7 MB). Free memory was 196.6 MB in the beginning and 362.2 MB in the end (delta: -165.6 MB). Peak memory consumption was 77.1 MB. Max. memory is 7.1 GB. [2020-08-22 01:15:10,560 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 750.40 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 103.9 MB in the beginning and 174.3 MB in the end (delta: -70.5 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.49 ms. Allocated memory is still 204.5 MB. Free memory was 174.3 MB in the beginning and 169.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1095.73 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 169.6 MB in the beginning and 196.6 MB in the end (delta: -27.0 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11432.50 ms. Allocated memory was 235.4 MB in the beginning and 478.2 MB in the end (delta: 242.7 MB). Free memory was 196.6 MB in the beginning and 362.2 MB in the end (delta: -165.6 MB). Peak memory consumption was 77.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 556]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L324] int cleanupTimeShifts = 4; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L730] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L400] int retValue_acc ; [L401] int tmp ; [L405] FCALL select_helpers() [L406] FCALL select_features() [L407] CALL, EXPR valid_product() [L543] int retValue_acc ; [L546] retValue_acc = 1 [L547] return (retValue_acc); [L407] RET, EXPR valid_product() [L407] tmp = valid_product() [L409] COND TRUE \read(tmp) [L411] FCALL setup() [L412] CALL runTest() [L391] 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() [L441] COND TRUE waterLevel < 2 [L442] 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 FALSE !(\read(tmp___2)) [L89] tmp___1 = __VERIFIER_nondet_int() [L91] COND TRUE \read(tmp___1) [L93] CALL stopSystem() [L276] COND FALSE !(\read(pumpRunning)) [L283] systemActive = 0 [L93] RET stopSystem() [L100] CALL timeShift() [L128] COND FALSE !(\read(pumpRunning)) [L135] COND FALSE !(\read(systemActive)) [L143] CALL __utac_acc__Specification3_spec__1() [L291] int tmp ; [L292] int tmp___0 ; [L293] int tmp___1 ; [L297] CALL, EXPR isMethaneLevelCritical() [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); [L297] RET, EXPR isMethaneLevelCritical() [L297] tmp = isMethaneLevelCritical() [L299] COND FALSE !(\read(tmp)) [L303] CALL, EXPR getWaterLevel() [L494] int retValue_acc ; [L497] retValue_acc = waterLevel [L498] return (retValue_acc); [L303] RET, EXPR getWaterLevel() [L303] tmp___0 = getWaterLevel() [L305] COND TRUE tmp___0 == 2 [L307] CALL, EXPR isPumpRunning() [L209] int retValue_acc ; [L212] retValue_acc = pumpRunning [L213] return (retValue_acc); [L307] RET, EXPR isPumpRunning() [L307] tmp___1 = isPumpRunning() [L309] COND FALSE !(\read(tmp___1)) [L313] CALL __automaton_fail() [L556] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 224 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 451 SDtfs, 636 SDslu, 358 SDs, 0 SdLazy, 1778 SolverSat, 351 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=441occurred in iteration=4, 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, 4 MinimizatonAttempts, 186 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 61524 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...