/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_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 01:15:29,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 01:15:29,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 01:15:29,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 01:15:29,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 01:15:29,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 01:15:29,644 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 01:15:29,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 01:15:29,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 01:15:29,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 01:15:29,658 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 01:15:29,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 01:15:29,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 01:15:29,661 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 01:15:29,664 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 01:15:29,666 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 01:15:29,667 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 01:15:29,691 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 01:15:29,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 01:15:29,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 01:15:29,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 01:15:29,705 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 01:15:29,707 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 01:15:29,707 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 01:15:29,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 01:15:29,714 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 01:15:29,715 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 01:15:29,716 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 01:15:29,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 01:15:29,719 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 01:15:29,719 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 01:15:29,720 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 01:15:29,721 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 01:15:29,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 01:15:29,724 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 01:15:29,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 01:15:29,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 01:15:29,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 01:15:29,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 01:15:29,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 01:15:29,728 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 01:15:29,729 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 01:15:29,774 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 01:15:29,775 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 01:15:29,777 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 01:15:29,777 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 01:15:29,778 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 01:15:29,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 01:15:29,778 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 01:15:29,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 01:15:29,779 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 01:15:29,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 01:15:29,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 01:15:29,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 01:15:29,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 01:15:29,781 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 01:15:29,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 01:15:29,781 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 01:15:29,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 01:15:29,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 01:15:29,782 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 01:15:29,782 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 01:15:29,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 01:15:29,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 01:15:29,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 01:15:29,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 01:15:29,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 01:15:29,784 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 01:15:29,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 01:15:29,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 01:15:29,784 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 01:15:29,784 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 01:15:30,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 01:15:30,197 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 01:15:30,201 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 01:15:30,203 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 01:15:30,203 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 01:15:30,204 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2020-08-22 01:15:30,268 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bad0baf76/37bbff14d0564ca1918ed591c77b9e73/FLAG814238c01 [2020-08-22 01:15:30,792 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 01:15:30,793 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2020-08-22 01:15:30,805 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bad0baf76/37bbff14d0564ca1918ed591c77b9e73/FLAG814238c01 [2020-08-22 01:15:31,131 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bad0baf76/37bbff14d0564ca1918ed591c77b9e73 [2020-08-22 01:15:31,141 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 01:15:31,144 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 01:15:31,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 01:15:31,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 01:15:31,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 01:15:31,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 01:15:31" (1/1) ... [2020-08-22 01:15:31,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29df31b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:15:31, skipping insertion in model container [2020-08-22 01:15:31,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 01:15:31" (1/1) ... [2020-08-22 01:15:31,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 01:15:31,211 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 01:15:31,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 01:15:31,716 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 01:15:31,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 01:15:31,859 INFO L208 MainTranslator]: Completed translation [2020-08-22 01:15:31,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:15:31 WrapperNode [2020-08-22 01:15:31,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 01:15:31,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 01:15:31,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 01:15:31,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 01:15:31,876 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:15:31" (1/1) ... [2020-08-22 01:15:31,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:15:31" (1/1) ... [2020-08-22 01:15:31,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:15:31" (1/1) ... [2020-08-22 01:15:31,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:15:31" (1/1) ... [2020-08-22 01:15:31,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:15:31" (1/1) ... [2020-08-22 01:15:31,975 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:15:31" (1/1) ... [2020-08-22 01:15:31,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:15:31" (1/1) ... [2020-08-22 01:15:31,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 01:15:31,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 01:15:31,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 01:15:31,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 01:15:31,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:15:31" (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 01:15:32,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 01:15:32,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 01:15:32,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 01:15:32,068 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 01:15:32,069 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 01:15:32,069 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 01:15:32,069 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 01:15:32,069 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 01:15:32,069 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 01:15:32,069 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-22 01:15:32,070 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-22 01:15:32,070 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 01:15:32,070 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-08-22 01:15:32,070 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 01:15:32,070 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 01:15:32,071 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 01:15:32,071 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 01:15:32,071 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 01:15:32,071 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 01:15:32,072 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-22 01:15:32,072 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 01:15:32,072 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-22 01:15:32,072 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 01:15:32,072 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 01:15:32,072 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 01:15:32,072 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 01:15:32,073 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 01:15:32,073 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 01:15:32,073 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 01:15:32,073 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 01:15:32,073 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-22 01:15:32,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 01:15:32,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 01:15:32,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 01:15:32,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 01:15:32,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 01:15:32,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 01:15:32,074 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 01:15:32,074 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 01:15:32,075 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 01:15:32,075 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 01:15:32,075 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 01:15:32,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 01:15:32,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-22 01:15:32,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 01:15:32,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 01:15:32,076 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 01:15:32,076 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 01:15:32,076 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 01:15:32,076 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 01:15:32,076 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 01:15:32,076 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 01:15:32,077 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 01:15:32,077 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 01:15:32,077 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 01:15:32,077 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-22 01:15:32,077 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 01:15:32,077 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 01:15:32,078 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 01:15:32,078 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 01:15:32,078 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 01:15:32,078 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 01:15:32,078 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-22 01:15:32,078 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-22 01:15:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 01:15:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 01:15:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 01:15:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-22 01:15:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-22 01:15:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-22 01:15:32,079 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 01:15:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-08-22 01:15:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 01:15:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 01:15:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 01:15:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 01:15:32,080 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 01:15:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 01:15:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 01:15:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 01:15:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 01:15:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 01:15:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 01:15:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 01:15:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 01:15:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 01:15:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 01:15:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 01:15:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 01:15:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 01:15:32,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 01:15:32,083 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 01:15:32,083 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 01:15:32,083 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 01:15:32,083 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 01:15:32,083 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 01:15:32,083 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 01:15:32,084 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 01:15:32,084 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 01:15:32,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 01:15:32,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 01:15:32,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 01:15:33,231 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 01:15:33,232 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 01:15:33,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 01:15:33 BoogieIcfgContainer [2020-08-22 01:15:33,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 01:15:33,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 01:15:33,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 01:15:33,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 01:15:33,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 01:15:31" (1/3) ... [2020-08-22 01:15:33,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23578812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 01:15:33, skipping insertion in model container [2020-08-22 01:15:33,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:15:31" (2/3) ... [2020-08-22 01:15:33,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23578812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 01:15:33, skipping insertion in model container [2020-08-22 01:15:33,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 01:15:33" (3/3) ... [2020-08-22 01:15:33,247 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2020-08-22 01:15:33,258 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 01:15:33,267 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 01:15:33,282 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 01:15:33,309 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 01:15:33,309 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 01:15:33,309 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 01:15:33,309 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 01:15:33,309 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 01:15:33,310 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 01:15:33,310 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 01:15:33,310 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 01:15:33,333 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states. [2020-08-22 01:15:33,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-22 01:15:33,345 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:15:33,346 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 01:15:33,346 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:15:33,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:15:33,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1153750625, now seen corresponding path program 1 times [2020-08-22 01:15:33,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:15:33,363 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1253682188] [2020-08-22 01:15:33,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:15:33,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:34,037 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 01:15:34,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:15:34,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:34,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:15:34,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:34,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 01:15:34,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:34,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 01:15:34,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:34,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 01:15:34,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:34,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 01:15:34,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:34,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 01:15:34,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:34,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 01:15:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:34,187 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 01:15:34,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1253682188] [2020-08-22 01:15:34,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:15:34,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 01:15:34,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484301244] [2020-08-22 01:15:34,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 01:15:34,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:15:34,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 01:15:34,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 01:15:34,216 INFO L87 Difference]: Start difference. First operand 209 states. Second operand 3 states. [2020-08-22 01:15:35,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:15:35,681 INFO L93 Difference]: Finished difference Result 380 states and 494 transitions. [2020-08-22 01:15:35,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 01:15:35,683 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-08-22 01:15:35,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:15:35,699 INFO L225 Difference]: With dead ends: 380 [2020-08-22 01:15:35,700 INFO L226 Difference]: Without dead ends: 205 [2020-08-22 01:15:35,705 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 01:15:35,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-08-22 01:15:35,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 166. [2020-08-22 01:15:35,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-08-22 01:15:35,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 198 transitions. [2020-08-22 01:15:35,875 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 198 transitions. Word has length 52 [2020-08-22 01:15:35,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:15:35,875 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 198 transitions. [2020-08-22 01:15:35,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 01:15:35,876 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 198 transitions. [2020-08-22 01:15:35,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-08-22 01:15:35,886 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:15:35,887 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 01:15:35,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 01:15:35,888 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:15:35,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:15:35,888 INFO L82 PathProgramCache]: Analyzing trace with hash -2119837363, now seen corresponding path program 1 times [2020-08-22 01:15:35,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:15:35,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [404185938] [2020-08-22 01:15:35,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:15:35,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:36,245 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 01:15:36,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:15:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:36,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:15:36,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:36,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 01:15:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:36,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 01:15:36,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:36,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 01:15:36,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:36,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 01:15:36,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:36,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-22 01:15:36,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:36,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-22 01:15:36,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:36,288 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 01:15:36,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [404185938] [2020-08-22 01:15:36,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:15:36,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 01:15:36,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251646918] [2020-08-22 01:15:36,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 01:15:36,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:15:36,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 01:15:36,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 01:15:36,292 INFO L87 Difference]: Start difference. First operand 166 states and 198 transitions. Second operand 4 states. [2020-08-22 01:15:36,715 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 01:15:37,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:15:37,857 INFO L93 Difference]: Finished difference Result 303 states and 373 transitions. [2020-08-22 01:15:37,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 01:15:37,858 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-08-22 01:15:37,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:15:37,861 INFO L225 Difference]: With dead ends: 303 [2020-08-22 01:15:37,862 INFO L226 Difference]: Without dead ends: 189 [2020-08-22 01:15:37,863 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 01:15:37,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-08-22 01:15:37,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 157. [2020-08-22 01:15:37,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-08-22 01:15:37,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 186 transitions. [2020-08-22 01:15:37,930 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 186 transitions. Word has length 53 [2020-08-22 01:15:37,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:15:37,930 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 186 transitions. [2020-08-22 01:15:37,930 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 01:15:37,931 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 186 transitions. [2020-08-22 01:15:37,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-08-22 01:15:37,933 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:15:37,933 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] [2020-08-22 01:15:37,933 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 01:15:37,933 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:15:37,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:15:37,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1174645714, now seen corresponding path program 1 times [2020-08-22 01:15:37,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:15:37,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1191636765] [2020-08-22 01:15:37,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:15:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:38,241 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 01:15:38,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:15:38,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:38,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:15:38,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:38,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 01:15:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:38,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 01:15:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:38,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 01:15:38,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:38,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 01:15:38,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:38,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 01:15:38,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:38,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 01:15:38,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:38,408 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 01:15:38,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1191636765] [2020-08-22 01:15:38,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:15:38,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 01:15:38,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61086136] [2020-08-22 01:15:38,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 01:15:38,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:15:38,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 01:15:38,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-22 01:15:38,420 INFO L87 Difference]: Start difference. First operand 157 states and 186 transitions. Second operand 8 states. [2020-08-22 01:15:38,834 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 01:15:39,166 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:15:39,441 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:15:39,687 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:15:40,458 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 01:15:43,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:15:43,087 INFO L93 Difference]: Finished difference Result 540 states and 672 transitions. [2020-08-22 01:15:43,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 01:15:43,088 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-08-22 01:15:43,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:15:43,100 INFO L225 Difference]: With dead ends: 540 [2020-08-22 01:15:43,100 INFO L226 Difference]: Without dead ends: 407 [2020-08-22 01:15:43,101 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 01:15:43,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2020-08-22 01:15:43,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 334. [2020-08-22 01:15:43,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2020-08-22 01:15:43,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 407 transitions. [2020-08-22 01:15:43,223 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 407 transitions. Word has length 58 [2020-08-22 01:15:43,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:15:43,223 INFO L479 AbstractCegarLoop]: Abstraction has 334 states and 407 transitions. [2020-08-22 01:15:43,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 01:15:43,224 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 407 transitions. [2020-08-22 01:15:43,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-22 01:15:43,226 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:15:43,226 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 01:15:43,226 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 01:15:43,226 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:15:43,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:15:43,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1545438199, now seen corresponding path program 1 times [2020-08-22 01:15:43,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:15:43,227 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1225168872] [2020-08-22 01:15:43,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:15:43,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:43,668 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 01:15:43,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:15:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:43,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 01:15:43,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:43,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 01:15:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:43,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 01:15:43,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:43,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 01:15:43,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:43,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 01:15:43,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:43,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 01:15:43,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:43,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-22 01:15:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:43,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 01:15:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:15:43,751 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 01:15:43,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1225168872] [2020-08-22 01:15:43,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:15:43,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 01:15:43,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524256966] [2020-08-22 01:15:43,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 01:15:43,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:15:43,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 01:15:43,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-22 01:15:43,754 INFO L87 Difference]: Start difference. First operand 334 states and 407 transitions. Second operand 8 states. [2020-08-22 01:15:44,220 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 01:15:45,767 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:15:46,168 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:15:46,495 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 01:15:46,782 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 01:15:48,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:15:48,088 INFO L93 Difference]: Finished difference Result 1041 states and 1365 transitions. [2020-08-22 01:15:48,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 01:15:48,089 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-08-22 01:15:48,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:15:48,099 INFO L225 Difference]: With dead ends: 1041 [2020-08-22 01:15:48,099 INFO L226 Difference]: Without dead ends: 731 [2020-08-22 01:15:48,100 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-08-22 01:15:48,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2020-08-22 01:15:48,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 653. [2020-08-22 01:15:48,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 653 states. [2020-08-22 01:15:48,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 809 transitions. [2020-08-22 01:15:48,253 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 809 transitions. Word has length 63 [2020-08-22 01:15:48,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:15:48,253 INFO L479 AbstractCegarLoop]: Abstraction has 653 states and 809 transitions. [2020-08-22 01:15:48,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 01:15:48,254 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 809 transitions. [2020-08-22 01:15:48,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-22 01:15:48,257 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:15:48,257 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 01:15:48,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 01:15:48,258 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 01:15:48,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:15:48,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1461698211, now seen corresponding path program 1 times [2020-08-22 01:15:48,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:15:48,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [704215897] [2020-08-22 01:15:48,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:15:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 01:15:48,320 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 01:15:48,320 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 01:15:48,325 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 01:15:48,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 01:15:48 BoogieIcfgContainer [2020-08-22 01:15:48,354 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 01:15:48,356 INFO L168 Benchmark]: Toolchain (without parser) took 17213.55 ms. Allocated memory was 143.7 MB in the beginning and 530.6 MB in the end (delta: 386.9 MB). Free memory was 98.1 MB in the beginning and 158.5 MB in the end (delta: -60.4 MB). Peak memory consumption was 326.5 MB. Max. memory is 7.1 GB. [2020-08-22 01:15:48,357 INFO L168 Benchmark]: CDTParser took 0.92 ms. Allocated memory is still 143.7 MB. Free memory was 118.2 MB in the beginning and 117.7 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-08-22 01:15:48,358 INFO L168 Benchmark]: CACSL2BoogieTranslator took 715.28 ms. Allocated memory was 143.7 MB in the beginning and 200.3 MB in the end (delta: 56.6 MB). Free memory was 98.1 MB in the beginning and 164.7 MB in the end (delta: -66.7 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2020-08-22 01:15:48,359 INFO L168 Benchmark]: Boogie Preprocessor took 126.82 ms. Allocated memory is still 200.3 MB. Free memory was 164.7 MB in the beginning and 160.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-08-22 01:15:48,360 INFO L168 Benchmark]: RCFGBuilder took 1249.88 ms. Allocated memory was 200.3 MB in the beginning and 227.5 MB in the end (delta: 27.3 MB). Free memory was 160.6 MB in the beginning and 185.8 MB in the end (delta: -25.2 MB). Peak memory consumption was 86.3 MB. Max. memory is 7.1 GB. [2020-08-22 01:15:48,361 INFO L168 Benchmark]: TraceAbstraction took 15115.13 ms. Allocated memory was 227.5 MB in the beginning and 530.6 MB in the end (delta: 303.0 MB). Free memory was 185.8 MB in the beginning and 158.5 MB in the end (delta: 27.3 MB). Peak memory consumption was 330.4 MB. Max. memory is 7.1 GB. [2020-08-22 01:15:48,365 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.92 ms. Allocated memory is still 143.7 MB. Free memory was 118.2 MB in the beginning and 117.7 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 715.28 ms. Allocated memory was 143.7 MB in the beginning and 200.3 MB in the end (delta: 56.6 MB). Free memory was 98.1 MB in the beginning and 164.7 MB in the end (delta: -66.7 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.82 ms. Allocated memory is still 200.3 MB. Free memory was 164.7 MB in the beginning and 160.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1249.88 ms. Allocated memory was 200.3 MB in the beginning and 227.5 MB in the end (delta: 27.3 MB). Free memory was 160.6 MB in the beginning and 185.8 MB in the end (delta: -25.2 MB). Peak memory consumption was 86.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15115.13 ms. Allocated memory was 227.5 MB in the beginning and 530.6 MB in the end (delta: 303.0 MB). Free memory was 185.8 MB in the beginning and 158.5 MB in the end (delta: 27.3 MB). Peak memory consumption was 330.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 996]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L90] int pumpRunning = 0; [L91] int systemActive = 1; [L427] int waterLevel = 1; [L428] int methaneLevelCritical = 0; [L699] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L896] int cleanupTimeShifts = 4; [L969] int retValue_acc ; [L970] int tmp ; [L974] FCALL select_helpers() [L975] FCALL select_features() [L976] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L976] RET, EXPR valid_product() [L976] tmp = valid_product() [L978] COND TRUE \read(tmp) [L980] FCALL setup() [L981] CALL runTest() [L963] CALL test() [L358] int splverifierCounter ; [L359] int tmp ; [L360] int tmp___0 ; [L361] int tmp___1 ; [L362] int tmp___2 ; [L365] splverifierCounter = 0 [L367] COND TRUE 1 [L369] COND TRUE splverifierCounter < 4 [L375] tmp = __VERIFIER_nondet_int() [L377] COND TRUE \read(tmp) [L379] CALL waterRise() [L445] COND TRUE waterLevel < 2 [L446] waterLevel = waterLevel + 1 [L379] RET waterRise() [L385] tmp___0 = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp___0)) [L395] tmp___2 = __VERIFIER_nondet_int() [L397] COND FALSE !(\read(tmp___2)) [L403] tmp___1 = __VERIFIER_nondet_int() [L405] COND TRUE \read(tmp___1) [L407] CALL stopSystem() [L334] COND FALSE !(\read(pumpRunning)) [L341] systemActive = 0 [L407] RET stopSystem() [L414] CALL timeShift() [L98] COND FALSE !(\read(pumpRunning)) [L105] COND FALSE !(\read(systemActive)) [L113] CALL __utac_acc__Specification3_spec__1() [L1002] int tmp ; [L1003] int tmp___0 ; [L1004] int tmp___1 ; [L1008] CALL, EXPR isMethaneLevelCritical() [L466] int retValue_acc ; [L469] retValue_acc = methaneLevelCritical [L470] return (retValue_acc); [L1008] RET, EXPR isMethaneLevelCritical() [L1008] tmp = isMethaneLevelCritical() [L1010] COND FALSE !(\read(tmp)) [L1014] CALL, EXPR getWaterLevel() [L498] int retValue_acc ; [L501] retValue_acc = waterLevel [L502] return (retValue_acc); [L1014] RET, EXPR getWaterLevel() [L1014] tmp___0 = getWaterLevel() [L1016] COND TRUE tmp___0 == 2 [L1018] CALL, EXPR isPumpRunning() [L248] int retValue_acc ; [L251] retValue_acc = pumpRunning [L252] return (retValue_acc); [L1018] RET, EXPR isPumpRunning() [L1018] tmp___1 = isPumpRunning() [L1020] COND FALSE !(\read(tmp___1)) [L1024] CALL __automaton_fail() [L996] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 265 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 629 SDtfs, 1054 SDslu, 415 SDs, 0 SdLazy, 2432 SolverSat, 646 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=653occurred 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, 222 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...