/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 06:06:07,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 06:06:07,909 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 06:06:07,953 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 06:06:07,955 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 06:06:07,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 06:06:07,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 06:06:07,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 06:06:07,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 06:06:07,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 06:06:07,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 06:06:07,975 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 06:06:07,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 06:06:07,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 06:06:07,981 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 06:06:07,983 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 06:06:07,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 06:06:07,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 06:06:07,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 06:06:07,994 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 06:06:07,996 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 06:06:07,997 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 06:06:07,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 06:06:07,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 06:06:08,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 06:06:08,001 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 06:06:08,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 06:06:08,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 06:06:08,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 06:06:08,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 06:06:08,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 06:06:08,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 06:06:08,004 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 06:06:08,005 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 06:06:08,006 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 06:06:08,006 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 06:06:08,007 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 06:06:08,007 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 06:06:08,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 06:06:08,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 06:06:08,008 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 06:06:08,009 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 06:06:08,033 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 06:06:08,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 06:06:08,034 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 06:06:08,034 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 06:06:08,035 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 06:06:08,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 06:06:08,035 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 06:06:08,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 06:06:08,035 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 06:06:08,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 06:06:08,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 06:06:08,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 06:06:08,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 06:06:08,036 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 06:06:08,037 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 06:06:08,037 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 06:06:08,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 06:06:08,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 06:06:08,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 06:06:08,038 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 06:06:08,038 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 06:06:08,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 06:06:08,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 06:06:08,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 06:06:08,039 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 06:06:08,039 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 06:06:08,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 06:06:08,039 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 06:06:08,039 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 06:06:08,040 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=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-08-22 06:06:08,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 06:06:08,361 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 06:06:08,364 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 06:06:08,365 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 06:06:08,366 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 06:06:08,367 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-08-22 06:06:08,419 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64bb23bc5/2a34eda285fa4aa0bb4272dd550e8f95/FLAG00e6b7f62 [2020-08-22 06:06:08,912 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 06:06:08,912 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-08-22 06:06:08,929 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64bb23bc5/2a34eda285fa4aa0bb4272dd550e8f95/FLAG00e6b7f62 [2020-08-22 06:06:09,265 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64bb23bc5/2a34eda285fa4aa0bb4272dd550e8f95 [2020-08-22 06:06:09,273 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 06:06:09,275 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 06:06:09,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 06:06:09,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 06:06:09,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 06:06:09,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:06:09" (1/1) ... [2020-08-22 06:06:09,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7225e1e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:09, skipping insertion in model container [2020-08-22 06:06:09,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:06:09" (1/1) ... [2020-08-22 06:06:09,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 06:06:09,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 06:06:09,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 06:06:09,767 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 06:06:09,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 06:06:09,936 INFO L208 MainTranslator]: Completed translation [2020-08-22 06:06:09,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:09 WrapperNode [2020-08-22 06:06:09,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 06:06:09,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 06:06:09,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 06:06:09,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 06:06:09,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:09" (1/1) ... [2020-08-22 06:06:09,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:09" (1/1) ... [2020-08-22 06:06:09,966 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:09" (1/1) ... [2020-08-22 06:06:09,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:09" (1/1) ... [2020-08-22 06:06:09,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:09" (1/1) ... [2020-08-22 06:06:10,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:09" (1/1) ... [2020-08-22 06:06:10,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:09" (1/1) ... [2020-08-22 06:06:10,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 06:06:10,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 06:06:10,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 06:06:10,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 06:06:10,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:09" (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 06:06:10,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 06:06:10,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 06:06:10,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 06:06:10,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-22 06:06:10,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 06:06:10,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 06:06:10,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 06:06:10,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 06:06:10,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 06:06:10,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 06:06:10,087 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 06:06:10,087 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 06:06:10,088 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 06:06:10,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 06:06:10,088 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 06:06:10,088 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 06:06:10,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 06:06:10,088 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 06:06:10,089 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 06:06:10,089 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 06:06:10,089 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 06:06:10,089 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 06:06:10,089 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 06:06:10,090 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 06:06:10,090 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 06:06:10,090 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 06:06:10,090 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 06:06:10,090 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-22 06:06:10,090 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 06:06:10,090 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 06:06:10,091 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 06:06:10,091 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 06:06:10,091 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 06:06:10,091 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 06:06:10,091 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 06:06:10,091 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 06:06:10,092 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 06:06:10,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 06:06:10,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 06:06:10,092 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 06:06:10,092 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 06:06:10,092 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 06:06:10,093 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 06:06:10,093 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 06:06:10,093 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-22 06:06:10,093 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 06:06:10,093 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 06:06:10,093 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 06:06:10,093 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 06:06:10,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 06:06:10,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 06:06:10,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 06:06:10,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 06:06:10,094 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 06:06:10,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 06:06:10,095 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 06:06:10,095 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 06:06:10,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 06:06:10,095 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 06:06:10,095 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 06:06:10,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 06:06:10,095 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 06:06:10,096 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 06:06:10,096 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 06:06:10,096 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 06:06:10,096 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 06:06:10,096 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-22 06:06:10,096 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 06:06:10,097 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 06:06:10,097 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 06:06:10,097 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 06:06:10,097 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 06:06:10,097 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 06:06:10,097 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 06:06:10,097 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 06:06:10,098 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 06:06:10,098 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 06:06:10,098 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 06:06:10,098 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 06:06:10,098 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 06:06:10,098 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 06:06:10,099 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 06:06:10,099 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 06:06:10,099 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 06:06:10,099 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 06:06:10,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 06:06:10,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 06:06:10,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 06:06:11,053 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 06:06:11,053 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 06:06:11,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:06:11 BoogieIcfgContainer [2020-08-22 06:06:11,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 06:06:11,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 06:06:11,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 06:06:11,063 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 06:06:11,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:06:09" (1/3) ... [2020-08-22 06:06:11,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58df4e9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:06:11, skipping insertion in model container [2020-08-22 06:06:11,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:09" (2/3) ... [2020-08-22 06:06:11,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58df4e9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:06:11, skipping insertion in model container [2020-08-22 06:06:11,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:06:11" (3/3) ... [2020-08-22 06:06:11,067 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product08.cil.c [2020-08-22 06:06:11,077 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 06:06:11,085 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 06:06:11,099 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 06:06:11,122 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 06:06:11,123 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 06:06:11,123 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 06:06:11,123 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 06:06:11,123 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 06:06:11,123 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 06:06:11,123 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 06:06:11,124 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 06:06:11,144 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states. [2020-08-22 06:06:11,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-22 06:06:11,154 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:06:11,155 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 06:06:11,155 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:06:11,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:06:11,160 INFO L82 PathProgramCache]: Analyzing trace with hash 2078323826, now seen corresponding path program 1 times [2020-08-22 06:06:11,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:06:11,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1649601303] [2020-08-22 06:06:11,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:06:11,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:11,831 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 06:06:11,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:06:11,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:11,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:06:11,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:11,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:06:11,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:11,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:06:11,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:11,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:06:11,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:11,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 06:06:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:11,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 06:06:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:11,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 06:06:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:11,924 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 06:06:11,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1649601303] [2020-08-22 06:06:11,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:06:11,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 06:06:11,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520979544] [2020-08-22 06:06:11,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 06:06:11,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:06:11,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 06:06:11,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 06:06:11,956 INFO L87 Difference]: Start difference. First operand 158 states. Second operand 3 states. [2020-08-22 06:06:13,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:06:13,007 INFO L93 Difference]: Finished difference Result 272 states and 360 transitions. [2020-08-22 06:06:13,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 06:06:13,009 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-08-22 06:06:13,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:06:13,024 INFO L225 Difference]: With dead ends: 272 [2020-08-22 06:06:13,024 INFO L226 Difference]: Without dead ends: 148 [2020-08-22 06:06:13,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 06:06:13,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-08-22 06:06:13,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 115. [2020-08-22 06:06:13,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-08-22 06:06:13,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 135 transitions. [2020-08-22 06:06:13,118 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 135 transitions. Word has length 52 [2020-08-22 06:06:13,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:06:13,121 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 135 transitions. [2020-08-22 06:06:13,121 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 06:06:13,121 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 135 transitions. [2020-08-22 06:06:13,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-08-22 06:06:13,125 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:06:13,125 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 06:06:13,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 06:06:13,126 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:06:13,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:06:13,127 INFO L82 PathProgramCache]: Analyzing trace with hash 883286197, now seen corresponding path program 1 times [2020-08-22 06:06:13,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:06:13,127 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1889748444] [2020-08-22 06:06:13,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:06:13,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:13,462 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 06:06:13,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:06:13,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:13,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:06:13,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:13,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:06:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:13,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:06:13,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:13,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:06:13,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:13,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 06:06:13,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:13,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-22 06:06:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:13,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-22 06:06:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:13,552 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 06:06:13,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1889748444] [2020-08-22 06:06:13,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:06:13,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 06:06:13,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282821123] [2020-08-22 06:06:13,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 06:06:13,559 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:06:13,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 06:06:13,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 06:06:13,559 INFO L87 Difference]: Start difference. First operand 115 states and 135 transitions. Second operand 4 states. [2020-08-22 06:06:13,937 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:06:14,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:06:14,693 INFO L93 Difference]: Finished difference Result 195 states and 239 transitions. [2020-08-22 06:06:14,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 06:06:14,699 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-08-22 06:06:14,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:06:14,702 INFO L225 Difference]: With dead ends: 195 [2020-08-22 06:06:14,702 INFO L226 Difference]: Without dead ends: 132 [2020-08-22 06:06:14,704 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 06:06:14,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-08-22 06:06:14,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 106. [2020-08-22 06:06:14,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-08-22 06:06:14,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 123 transitions. [2020-08-22 06:06:14,754 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 123 transitions. Word has length 53 [2020-08-22 06:06:14,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:06:14,755 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 123 transitions. [2020-08-22 06:06:14,755 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 06:06:14,755 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 123 transitions. [2020-08-22 06:06:14,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-08-22 06:06:14,757 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:06:14,758 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 06:06:14,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 06:06:14,758 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:06:14,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:06:14,758 INFO L82 PathProgramCache]: Analyzing trace with hash -2055351283, now seen corresponding path program 1 times [2020-08-22 06:06:14,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:06:14,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [633402614] [2020-08-22 06:06:14,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:06:14,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:15,130 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 06:06:15,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:06:15,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:15,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:06:15,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:15,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:06:15,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:15,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:06:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:15,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:06:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:15,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 06:06:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:15,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 06:06:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:15,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 06:06:15,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:15,316 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 06:06:15,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [633402614] [2020-08-22 06:06:15,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:06:15,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 06:06:15,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429685113] [2020-08-22 06:06:15,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 06:06:15,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:06:15,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 06:06:15,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-22 06:06:15,319 INFO L87 Difference]: Start difference. First operand 106 states and 123 transitions. Second operand 8 states. [2020-08-22 06:06:15,663 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 06:06:15,975 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:06:16,241 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:06:16,491 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:06:17,229 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:06:18,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:06:18,776 INFO L93 Difference]: Finished difference Result 375 states and 467 transitions. [2020-08-22 06:06:18,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 06:06:18,778 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-08-22 06:06:18,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:06:18,784 INFO L225 Difference]: With dead ends: 375 [2020-08-22 06:06:18,784 INFO L226 Difference]: Without dead ends: 293 [2020-08-22 06:06:18,785 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 06:06:18,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-08-22 06:06:18,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 232. [2020-08-22 06:06:18,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-08-22 06:06:18,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 281 transitions. [2020-08-22 06:06:18,851 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 281 transitions. Word has length 58 [2020-08-22 06:06:18,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:06:18,852 INFO L479 AbstractCegarLoop]: Abstraction has 232 states and 281 transitions. [2020-08-22 06:06:18,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 06:06:18,852 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 281 transitions. [2020-08-22 06:06:18,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-22 06:06:18,855 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:06:18,855 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 06:06:18,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 06:06:18,856 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:06:18,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:06:18,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1417899682, now seen corresponding path program 1 times [2020-08-22 06:06:18,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:06:18,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1265880804] [2020-08-22 06:06:18,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:06:18,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:19,144 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 06:06:19,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:06:19,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:19,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:06:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:19,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:06:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:19,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:06:19,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:19,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:06:19,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:19,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 06:06:19,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:19,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 06:06:19,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:19,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-22 06:06:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:19,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 06:06:19,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:06:19,227 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 06:06:19,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1265880804] [2020-08-22 06:06:19,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:06:19,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 06:06:19,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276156461] [2020-08-22 06:06:19,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 06:06:19,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:06:19,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 06:06:19,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-22 06:06:19,229 INFO L87 Difference]: Start difference. First operand 232 states and 281 transitions. Second operand 8 states. [2020-08-22 06:06:19,601 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 06:06:20,888 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:06:21,246 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:06:21,510 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:06:21,778 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 06:06:22,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:06:22,412 INFO L93 Difference]: Finished difference Result 711 states and 941 transitions. [2020-08-22 06:06:22,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 06:06:22,412 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-08-22 06:06:22,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:06:22,419 INFO L225 Difference]: With dead ends: 711 [2020-08-22 06:06:22,419 INFO L226 Difference]: Without dead ends: 503 [2020-08-22 06:06:22,422 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-08-22 06:06:22,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2020-08-22 06:06:22,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 437. [2020-08-22 06:06:22,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-08-22 06:06:22,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 543 transitions. [2020-08-22 06:06:22,525 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 543 transitions. Word has length 63 [2020-08-22 06:06:22,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:06:22,526 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 543 transitions. [2020-08-22 06:06:22,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 06:06:22,526 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 543 transitions. [2020-08-22 06:06:22,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-22 06:06:22,530 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:06:22,531 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 06:06:22,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 06:06:22,531 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:06:22,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:06:22,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1714463836, now seen corresponding path program 1 times [2020-08-22 06:06:22,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:06:22,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [753187221] [2020-08-22 06:06:22,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:06:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 06:06:22,589 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 06:06:22,589 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 06:06:22,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 06:06:22,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:06:22 BoogieIcfgContainer [2020-08-22 06:06:22,617 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 06:06:22,619 INFO L168 Benchmark]: Toolchain (without parser) took 13343.59 ms. Allocated memory was 140.0 MB in the beginning and 472.4 MB in the end (delta: 332.4 MB). Free memory was 102.2 MB in the beginning and 356.4 MB in the end (delta: -254.2 MB). Peak memory consumption was 78.2 MB. Max. memory is 7.1 GB. [2020-08-22 06:06:22,620 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 06:06:22,621 INFO L168 Benchmark]: CACSL2BoogieTranslator took 660.87 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 102.0 MB in the beginning and 170.0 MB in the end (delta: -68.0 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2020-08-22 06:06:22,621 INFO L168 Benchmark]: Boogie Preprocessor took 84.06 ms. Allocated memory is still 202.4 MB. Free memory was 170.0 MB in the beginning and 165.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-08-22 06:06:22,622 INFO L168 Benchmark]: RCFGBuilder took 1036.93 ms. Allocated memory was 202.4 MB in the beginning and 236.5 MB in the end (delta: 34.1 MB). Free memory was 165.3 MB in the beginning and 197.2 MB in the end (delta: -31.9 MB). Peak memory consumption was 81.7 MB. Max. memory is 7.1 GB. [2020-08-22 06:06:22,623 INFO L168 Benchmark]: TraceAbstraction took 11556.99 ms. Allocated memory was 236.5 MB in the beginning and 472.4 MB in the end (delta: 235.9 MB). Free memory was 197.2 MB in the beginning and 356.4 MB in the end (delta: -159.3 MB). Peak memory consumption was 76.7 MB. Max. memory is 7.1 GB. [2020-08-22 06:06:22,627 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 660.87 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 102.0 MB in the beginning and 170.0 MB in the end (delta: -68.0 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 84.06 ms. Allocated memory is still 202.4 MB. Free memory was 170.0 MB in the beginning and 165.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1036.93 ms. Allocated memory was 202.4 MB in the beginning and 236.5 MB in the end (delta: 34.1 MB). Free memory was 165.3 MB in the beginning and 197.2 MB in the end (delta: -31.9 MB). Peak memory consumption was 81.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11556.99 ms. Allocated memory was 236.5 MB in the beginning and 472.4 MB in the end (delta: 235.9 MB). Free memory was 197.2 MB in the beginning and 356.4 MB in the end (delta: -159.3 MB). Peak memory consumption was 76.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 532]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L448] int waterLevel = 1; [L449] int methaneLevelCritical = 0; [L613] int pumpRunning = 0; [L614] int systemActive = 1; [L807] int cleanupTimeShifts = 4; [L880] int retValue_acc ; [L881] int tmp ; [L885] FCALL select_helpers() [L886] FCALL select_features() [L887] CALL, EXPR valid_product() [L798] int retValue_acc ; [L801] retValue_acc = 1 [L802] return (retValue_acc); [L887] RET, EXPR valid_product() [L887] tmp = valid_product() [L889] COND TRUE \read(tmp) [L891] FCALL setup() [L892] CALL runTest() [L874] CALL test() [L542] int splverifierCounter ; [L543] int tmp ; [L544] int tmp___0 ; [L545] int tmp___1 ; [L546] int tmp___2 ; [L549] splverifierCounter = 0 [L551] COND TRUE 1 [L553] COND TRUE splverifierCounter < 4 [L559] tmp = __VERIFIER_nondet_int() [L561] COND TRUE \read(tmp) [L563] CALL waterRise() [L466] COND TRUE waterLevel < 2 [L467] waterLevel = waterLevel + 1 [L563] RET waterRise() [L569] tmp___0 = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp___0)) [L579] tmp___2 = __VERIFIER_nondet_int() [L581] COND FALSE !(\read(tmp___2)) [L587] tmp___1 = __VERIFIER_nondet_int() [L589] COND TRUE \read(tmp___1) [L591] CALL stopSystem() [L749] COND FALSE !(\read(pumpRunning)) [L756] systemActive = 0 [L591] RET stopSystem() [L598] CALL timeShift() [L620] COND FALSE !(\read(pumpRunning)) [L627] COND FALSE !(\read(systemActive)) [L635] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L487] int retValue_acc ; [L490] retValue_acc = methaneLevelCritical [L491] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L519] int retValue_acc ; [L522] retValue_acc = waterLevel [L523] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L701] int retValue_acc ; [L704] retValue_acc = pumpRunning [L705] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L532] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 217 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 444 SDtfs, 588 SDslu, 377 SDs, 0 SdLazy, 1731 SolverSat, 371 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=437occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 186 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s 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...