/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=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 01:47:52,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 01:47:52,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 01:47:52,836 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 01:47:52,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 01:47:52,845 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 01:47:52,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 01:47:52,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 01:47:52,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 01:47:52,858 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 01:47:52,859 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 01:47:52,860 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 01:47:52,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 01:47:52,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 01:47:52,865 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 01:47:52,867 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 01:47:52,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 01:47:52,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 01:47:52,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 01:47:52,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 01:47:52,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 01:47:52,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 01:47:52,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 01:47:52,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 01:47:52,896 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 01:47:52,896 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 01:47:52,896 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 01:47:52,900 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 01:47:52,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 01:47:52,902 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 01:47:52,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 01:47:52,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 01:47:52,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 01:47:52,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 01:47:52,911 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 01:47:52,911 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 01:47:52,912 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 01:47:52,912 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 01:47:52,912 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 01:47:52,915 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 01:47:52,915 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 01:47:52,917 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 [2020-08-19 01:47:52,952 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 01:47:52,952 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 01:47:52,954 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 01:47:52,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 01:47:52,955 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 01:47:52,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 01:47:52,955 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 01:47:52,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 01:47:52,956 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 01:47:52,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 01:47:52,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 01:47:52,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 01:47:52,957 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 01:47:52,957 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 01:47:52,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 01:47:52,959 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 01:47:52,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 01:47:52,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 01:47:52,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 01:47:52,960 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 01:47:52,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 01:47:52,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 01:47:52,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 01:47:52,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 01:47:52,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 01:47:52,961 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 01:47:52,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 01:47:52,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 01:47:52,962 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 01:47:52,962 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=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8; [2020-08-19 01:47:53,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 01:47:53,298 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 01:47:53,302 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 01:47:53,304 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 01:47:53,304 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 01:47:53,305 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product40.cil.c [2020-08-19 01:47:53,382 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/423d5006b/7c97df21a76e4f23b3131dd616a1a072/FLAGc4763dfd5 [2020-08-19 01:47:53,880 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 01:47:53,881 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product40.cil.c [2020-08-19 01:47:53,895 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/423d5006b/7c97df21a76e4f23b3131dd616a1a072/FLAGc4763dfd5 [2020-08-19 01:47:54,182 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/423d5006b/7c97df21a76e4f23b3131dd616a1a072 [2020-08-19 01:47:54,191 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 01:47:54,192 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 01:47:54,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 01:47:54,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 01:47:54,200 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 01:47:54,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 01:47:54" (1/1) ... [2020-08-19 01:47:54,205 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 19.08 01:47:54, skipping insertion in model container [2020-08-19 01:47:54,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 01:47:54" (1/1) ... [2020-08-19 01:47:54,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 01:47:54,281 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 01:47:54,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 01:47:54,822 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 01:47:54,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 01:47:54,945 INFO L208 MainTranslator]: Completed translation [2020-08-19 01:47:54,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:47:54 WrapperNode [2020-08-19 01:47:54,946 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 01:47:54,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 01:47:54,947 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 01:47:54,947 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 01:47:54,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:47:54" (1/1) ... [2020-08-19 01:47:54,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:47:54" (1/1) ... [2020-08-19 01:47:54,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:47:54" (1/1) ... [2020-08-19 01:47:54,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:47:54" (1/1) ... [2020-08-19 01:47:55,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:47:54" (1/1) ... [2020-08-19 01:47:55,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:47:54" (1/1) ... [2020-08-19 01:47:55,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:47:54" (1/1) ... [2020-08-19 01:47:55,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 01:47:55,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 01:47:55,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 01:47:55,043 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 01:47:55,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:47:54" (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 [2020-08-19 01:47:55,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 01:47:55,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 01:47:55,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-19 01:47:55,107 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-19 01:47:55,107 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-19 01:47:55,107 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-19 01:47:55,107 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-19 01:47:55,108 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 01:47:55,108 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-19 01:47:55,108 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-19 01:47:55,108 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-19 01:47:55,108 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-19 01:47:55,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-19 01:47:55,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-19 01:47:55,109 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-19 01:47:55,109 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-19 01:47:55,109 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-19 01:47:55,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-19 01:47:55,109 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-19 01:47:55,110 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-19 01:47:55,110 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-19 01:47:55,110 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-19 01:47:55,110 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-19 01:47:55,110 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-19 01:47:55,111 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-19 01:47:55,111 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-19 01:47:55,111 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-19 01:47:55,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-19 01:47:55,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-19 01:47:55,111 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-19 01:47:55,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-19 01:47:55,112 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-19 01:47:55,112 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-19 01:47:55,112 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-19 01:47:55,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-19 01:47:55,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-19 01:47:55,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-19 01:47:55,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-19 01:47:55,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-19 01:47:55,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-19 01:47:55,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 01:47:55,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 01:47:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-19 01:47:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-19 01:47:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-19 01:47:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-19 01:47:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-19 01:47:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-19 01:47:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-19 01:47:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-19 01:47:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-19 01:47:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-19 01:47:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-19 01:47:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-19 01:47:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-19 01:47:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 01:47:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-19 01:47:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-19 01:47:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-19 01:47:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-19 01:47:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-19 01:47:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-19 01:47:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-19 01:47:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-19 01:47:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-19 01:47:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 01:47:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-19 01:47:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-19 01:47:55,118 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-19 01:47:55,118 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-19 01:47:55,118 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-19 01:47:55,118 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-19 01:47:55,118 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-19 01:47:55,118 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-19 01:47:55,119 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-19 01:47:55,119 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-19 01:47:55,119 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 01:47:55,119 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 01:47:55,119 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-19 01:47:55,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 01:47:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 01:47:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 01:47:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 01:47:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-19 01:47:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 01:47:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-19 01:47:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-19 01:47:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 01:47:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-19 01:47:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-19 01:47:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-19 01:47:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 01:47:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 01:47:55,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 01:47:56,269 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 01:47:56,270 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-19 01:47:56,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 01:47:56 BoogieIcfgContainer [2020-08-19 01:47:56,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 01:47:56,277 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 01:47:56,277 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 01:47:56,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 01:47:56,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 01:47:54" (1/3) ... [2020-08-19 01:47:56,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9c0677a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 01:47:56, skipping insertion in model container [2020-08-19 01:47:56,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:47:54" (2/3) ... [2020-08-19 01:47:56,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9c0677a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 01:47:56, skipping insertion in model container [2020-08-19 01:47:56,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 01:47:56" (3/3) ... [2020-08-19 01:47:56,284 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product40.cil.c [2020-08-19 01:47:56,295 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 01:47:56,303 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 01:47:56,318 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 01:47:56,344 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 01:47:56,344 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 01:47:56,344 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 01:47:56,345 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 01:47:56,345 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 01:47:56,345 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 01:47:56,345 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 01:47:56,346 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 01:47:56,369 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2020-08-19 01:47:56,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-19 01:47:56,380 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:47:56,382 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] [2020-08-19 01:47:56,382 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:47:56,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:47:56,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1613949641, now seen corresponding path program 1 times [2020-08-19 01:47:56,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:47:56,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2077547029] [2020-08-19 01:47:56,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:47:56,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:57,108 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 01:47:57,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:47:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:57,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:47:57,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:57,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:47:57,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:57,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:47:57,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:57,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 01:47:57,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:57,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 01:47:57,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:57,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 01:47:57,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:57,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-19 01:47:57,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:57,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:47:57,212 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2077547029] [2020-08-19 01:47:57,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:47:57,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-19 01:47:57,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738365617] [2020-08-19 01:47:57,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-19 01:47:57,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:47:57,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-19 01:47:57,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-19 01:47:57,241 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 3 states. [2020-08-19 01:47:58,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:47:58,487 INFO L93 Difference]: Finished difference Result 322 states and 421 transitions. [2020-08-19 01:47:58,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-19 01:47:58,489 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-08-19 01:47:58,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:47:58,504 INFO L225 Difference]: With dead ends: 322 [2020-08-19 01:47:58,505 INFO L226 Difference]: Without dead ends: 174 [2020-08-19 01:47:58,513 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 [2020-08-19 01:47:58,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-08-19 01:47:58,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 139. [2020-08-19 01:47:58,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-08-19 01:47:58,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 164 transitions. [2020-08-19 01:47:58,611 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 164 transitions. Word has length 52 [2020-08-19 01:47:58,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:47:58,611 INFO L479 AbstractCegarLoop]: Abstraction has 139 states and 164 transitions. [2020-08-19 01:47:58,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-19 01:47:58,612 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 164 transitions. [2020-08-19 01:47:58,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-08-19 01:47:58,616 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:47:58,616 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] [2020-08-19 01:47:58,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 01:47:58,616 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:47:58,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:47:58,617 INFO L82 PathProgramCache]: Analyzing trace with hash -404683850, now seen corresponding path program 1 times [2020-08-19 01:47:58,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:47:58,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [99574117] [2020-08-19 01:47:58,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:47:58,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:59,010 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 01:47:59,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:47:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:59,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:47:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:59,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:47:59,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:59,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:47:59,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:59,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 01:47:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:59,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 01:47:59,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:59,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-19 01:47:59,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:59,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 01:47:59,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:47:59,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:47:59,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [99574117] [2020-08-19 01:47:59,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:47:59,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 01:47:59,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563085216] [2020-08-19 01:47:59,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 01:47:59,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:47:59,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 01:47:59,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-19 01:47:59,090 INFO L87 Difference]: Start difference. First operand 139 states and 164 transitions. Second operand 4 states. [2020-08-19 01:47:59,493 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 01:48:00,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:48:00,323 INFO L93 Difference]: Finished difference Result 245 states and 300 transitions. [2020-08-19 01:48:00,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-19 01:48:00,324 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-08-19 01:48:00,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:48:00,327 INFO L225 Difference]: With dead ends: 245 [2020-08-19 01:48:00,329 INFO L226 Difference]: Without dead ends: 158 [2020-08-19 01:48:00,331 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 [2020-08-19 01:48:00,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-08-19 01:48:00,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 130. [2020-08-19 01:48:00,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-08-19 01:48:00,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 152 transitions. [2020-08-19 01:48:00,398 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 152 transitions. Word has length 53 [2020-08-19 01:48:00,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:48:00,399 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 152 transitions. [2020-08-19 01:48:00,399 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 01:48:00,399 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 152 transitions. [2020-08-19 01:48:00,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-08-19 01:48:00,402 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:48:00,402 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] [2020-08-19 01:48:00,402 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 01:48:00,403 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:48:00,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:48:00,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1069064851, now seen corresponding path program 1 times [2020-08-19 01:48:00,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:48:00,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [417832941] [2020-08-19 01:48:00,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:48:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:48:00,756 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 01:48:00,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:48:00,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:48:00,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:48:00,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:48:00,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:48:00,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:48:00,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:48:00,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:48:00,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 01:48:00,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:48:00,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 01:48:00,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:48:00,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-19 01:48:00,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:48:00,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-19 01:48:00,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:48:00,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:48:00,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [417832941] [2020-08-19 01:48:00,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:48:00,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-19 01:48:00,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904217423] [2020-08-19 01:48:00,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 01:48:00,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:48:00,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 01:48:00,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-19 01:48:00,868 INFO L87 Difference]: Start difference. First operand 130 states and 152 transitions. Second operand 8 states. [2020-08-19 01:48:01,205 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 01:48:01,542 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:48:01,787 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:48:02,026 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:48:02,804 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 01:48:04,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:48:04,762 INFO L93 Difference]: Finished difference Result 451 states and 560 transitions. [2020-08-19 01:48:04,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 01:48:04,763 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-08-19 01:48:04,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:48:04,768 INFO L225 Difference]: With dead ends: 451 [2020-08-19 01:48:04,768 INFO L226 Difference]: Without dead ends: 345 [2020-08-19 01:48:04,769 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 [2020-08-19 01:48:04,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-08-19 01:48:04,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 280. [2020-08-19 01:48:04,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-08-19 01:48:04,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 339 transitions. [2020-08-19 01:48:04,872 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 339 transitions. Word has length 58 [2020-08-19 01:48:04,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:48:04,873 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 339 transitions. [2020-08-19 01:48:04,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 01:48:04,873 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 339 transitions. [2020-08-19 01:48:04,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-19 01:48:04,876 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:48:04,877 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] [2020-08-19 01:48:04,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 01:48:04,877 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:48:04,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:48:04,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1575246874, now seen corresponding path program 1 times [2020-08-19 01:48:04,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:48:04,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [142022578] [2020-08-19 01:48:04,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:48:04,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:48:05,168 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 01:48:05,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:48:05,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:48:05,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:48:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:48:05,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:48:05,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:48:05,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:48:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:48:05,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 01:48:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:48:05,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 01:48:05,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:48:05,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-19 01:48:05,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:48:05,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-19 01:48:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:48:05,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 01:48:05,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:48:05,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:48:05,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [142022578] [2020-08-19 01:48:05,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:48:05,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-19 01:48:05,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444275234] [2020-08-19 01:48:05,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 01:48:05,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:48:05,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 01:48:05,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-19 01:48:05,293 INFO L87 Difference]: Start difference. First operand 280 states and 339 transitions. Second operand 8 states. [2020-08-19 01:48:05,653 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 01:48:07,048 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:48:07,410 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:48:07,692 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:48:07,948 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 01:48:08,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:48:08,766 INFO L93 Difference]: Finished difference Result 863 states and 1137 transitions. [2020-08-19 01:48:08,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-19 01:48:08,767 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-08-19 01:48:08,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:48:08,773 INFO L225 Difference]: With dead ends: 863 [2020-08-19 01:48:08,773 INFO L226 Difference]: Without dead ends: 607 [2020-08-19 01:48:08,775 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 [2020-08-19 01:48:08,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2020-08-19 01:48:08,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 537. [2020-08-19 01:48:08,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-08-19 01:48:08,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 663 transitions. [2020-08-19 01:48:08,942 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 663 transitions. Word has length 63 [2020-08-19 01:48:08,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:48:08,942 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 663 transitions. [2020-08-19 01:48:08,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 01:48:08,943 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 663 transitions. [2020-08-19 01:48:08,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-19 01:48:08,947 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:48:08,947 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] [2020-08-19 01:48:08,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 01:48:08,947 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:48:08,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:48:08,948 INFO L82 PathProgramCache]: Analyzing trace with hash 730381356, now seen corresponding path program 1 times [2020-08-19 01:48:08,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:48:08,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [330421081] [2020-08-19 01:48:08,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:48:09,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-19 01:48:09,009 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-19 01:48:09,010 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-19 01:48:09,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 01:48:09,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 01:48:09 BoogieIcfgContainer [2020-08-19 01:48:09,040 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 01:48:09,042 INFO L168 Benchmark]: Toolchain (without parser) took 14849.73 ms. Allocated memory was 140.5 MB in the beginning and 469.2 MB in the end (delta: 328.7 MB). Free memory was 102.9 MB in the beginning and 400.9 MB in the end (delta: -298.0 MB). Peak memory consumption was 30.8 MB. Max. memory is 7.1 GB. [2020-08-19 01:48:09,043 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-19 01:48:09,044 INFO L168 Benchmark]: CACSL2BoogieTranslator took 750.79 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.7 MB in the beginning and 172.6 MB in the end (delta: -69.9 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. [2020-08-19 01:48:09,045 INFO L168 Benchmark]: Boogie Preprocessor took 95.22 ms. Allocated memory is still 203.4 MB. Free memory was 172.6 MB in the beginning and 168.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-08-19 01:48:09,045 INFO L168 Benchmark]: RCFGBuilder took 1233.09 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 168.6 MB in the beginning and 197.1 MB in the end (delta: -28.6 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. [2020-08-19 01:48:09,046 INFO L168 Benchmark]: TraceAbstraction took 12763.30 ms. Allocated memory was 236.5 MB in the beginning and 469.2 MB in the end (delta: 232.8 MB). Free memory was 197.1 MB in the beginning and 400.9 MB in the end (delta: -203.7 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. [2020-08-19 01:48:09,050 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 750.79 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.7 MB in the beginning and 172.6 MB in the end (delta: -69.9 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.22 ms. Allocated memory is still 203.4 MB. Free memory was 172.6 MB in the beginning and 168.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1233.09 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 168.6 MB in the beginning and 197.1 MB in the end (delta: -28.6 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12763.30 ms. Allocated memory was 236.5 MB in the beginning and 469.2 MB in the end (delta: 232.8 MB). Free memory was 197.1 MB in the beginning and 400.9 MB in the end (delta: -203.7 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 221]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L229] int waterLevel = 1; [L230] int methaneLevelCritical = 0; [L327] int pumpRunning = 0; [L328] int systemActive = 1; [L766] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L529] int splverifierCounter ; [L530] int tmp ; [L531] int tmp___0 ; [L532] int tmp___1 ; [L533] int tmp___2 ; [L536] splverifierCounter = 0 [L538] COND TRUE 1 [L540] COND TRUE splverifierCounter < 4 [L546] tmp = __VERIFIER_nondet_int() [L548] COND TRUE \read(tmp) [L550] CALL waterRise() [L247] COND TRUE waterLevel < 2 [L248] waterLevel = waterLevel + 1 [L550] RET waterRise() [L556] tmp___0 = __VERIFIER_nondet_int() [L558] COND FALSE !(\read(tmp___0)) [L566] tmp___2 = __VERIFIER_nondet_int() [L568] COND FALSE !(\read(tmp___2)) [L574] tmp___1 = __VERIFIER_nondet_int() [L576] COND TRUE \read(tmp___1) [L578] CALL stopSystem() [L508] COND FALSE !(\read(pumpRunning)) [L515] systemActive = 0 [L578] RET stopSystem() [L585] CALL timeShift() [L334] COND FALSE !(\read(pumpRunning)) [L341] COND FALSE !(\read(systemActive)) [L349] CALL __utac_acc__Specification3_spec__1() [L184] int tmp ; [L185] int tmp___0 ; [L186] int tmp___1 ; [L190] CALL, EXPR isMethaneLevelCritical() [L268] int retValue_acc ; [L271] retValue_acc = methaneLevelCritical [L272] return (retValue_acc); [L190] RET, EXPR isMethaneLevelCritical() [L190] tmp = isMethaneLevelCritical() [L192] COND FALSE !(\read(tmp)) [L196] CALL, EXPR getWaterLevel() [L300] int retValue_acc ; [L303] retValue_acc = waterLevel [L304] return (retValue_acc); [L196] RET, EXPR getWaterLevel() [L196] tmp___0 = getWaterLevel() [L198] COND TRUE tmp___0 == 2 [L200] CALL, EXPR isPumpRunning() [L441] int retValue_acc ; [L444] retValue_acc = pumpRunning [L445] return (retValue_acc); [L200] RET, EXPR isPumpRunning() [L200] tmp___1 = isPumpRunning() [L202] COND FALSE !(\read(tmp___1)) [L206] CALL __automaton_fail() [L221] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 238 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 9.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 533 SDtfs, 757 SDslu, 422 SDs, 0 SdLazy, 2079 SolverSat, 445 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=537occurred 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: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 198 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 62058 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...