/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 04:23:49,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 04:23:49,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 04:23:49,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 04:23:49,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 04:23:49,212 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 04:23:49,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 04:23:49,214 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 04:23:49,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 04:23:49,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 04:23:49,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 04:23:49,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 04:23:49,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 04:23:49,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 04:23:49,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 04:23:49,230 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 04:23:49,231 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 04:23:49,232 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 04:23:49,234 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 04:23:49,237 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 04:23:49,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 04:23:49,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 04:23:49,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 04:23:49,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 04:23:49,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 04:23:49,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 04:23:49,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 04:23:49,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 04:23:49,246 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 04:23:49,247 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 04:23:49,248 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 04:23:49,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 04:23:49,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 04:23:49,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 04:23:49,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 04:23:49,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 04:23:49,250 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 04:23:49,250 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 04:23:49,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 04:23:49,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 04:23:49,251 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 04:23:49,253 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 04:23:49,271 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 04:23:49,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 04:23:49,271 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 04:23:49,271 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 04:23:49,277 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 04:23:49,277 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 04:23:49,278 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 04:23:49,278 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 04:23:49,278 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 04:23:49,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 04:23:49,279 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 04:23:49,279 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 04:23:49,280 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 04:23:49,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 04:23:49,280 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 04:23:49,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 04:23:49,280 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 04:23:49,280 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 04:23:49,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 04:23:49,280 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 04:23:49,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 04:23:49,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 04:23:49,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 04:23:49,281 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 04:23:49,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:23:49,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 04:23:49,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 04:23:49,281 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 04:23:49,281 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 04:23:49,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 04:23:49,282 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 04:23:49,282 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 04:23:49,282 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 04:23:49,282 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 04:23:49,282 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 04:23:49,282 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 04:23:49,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 04:23:49,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 04:23:49,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 04:23:49,500 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 04:23:49,501 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 04:23:49,501 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product47.cil.c [2023-04-02 04:23:50,542 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 04:23:50,729 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 04:23:50,729 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product47.cil.c [2023-04-02 04:23:50,737 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edc04f5c7/04b8d342e313450585b210bd6078d736/FLAGd629bdc6d [2023-04-02 04:23:50,750 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edc04f5c7/04b8d342e313450585b210bd6078d736 [2023-04-02 04:23:50,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 04:23:50,753 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 04:23:50,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 04:23:50,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 04:23:50,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 04:23:50,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:23:50" (1/1) ... [2023-04-02 04:23:50,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b2cba4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:23:50, skipping insertion in model container [2023-04-02 04:23:50,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:23:50" (1/1) ... [2023-04-02 04:23:50,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 04:23:50,800 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 04:23:50,989 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product47.cil.c[16710,16723] [2023-04-02 04:23:50,999 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:23:51,007 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 04:23:51,054 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product47.cil.c[16710,16723] [2023-04-02 04:23:51,057 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:23:51,069 INFO L208 MainTranslator]: Completed translation [2023-04-02 04:23:51,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:23:51 WrapperNode [2023-04-02 04:23:51,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 04:23:51,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 04:23:51,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 04:23:51,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 04:23:51,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:23:51" (1/1) ... [2023-04-02 04:23:51,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:23:51" (1/1) ... [2023-04-02 04:23:51,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:23:51" (1/1) ... [2023-04-02 04:23:51,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:23:51" (1/1) ... [2023-04-02 04:23:51,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:23:51" (1/1) ... [2023-04-02 04:23:51,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:23:51" (1/1) ... [2023-04-02 04:23:51,117 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:23:51" (1/1) ... [2023-04-02 04:23:51,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:23:51" (1/1) ... [2023-04-02 04:23:51,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 04:23:51,123 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 04:23:51,123 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 04:23:51,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 04:23:51,124 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:23:51" (1/1) ... [2023-04-02 04:23:51,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:23:51,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:23:51,178 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 04:23:51,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 04:23:51,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 04:23:51,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 04:23:51,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 04:23:51,231 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 04:23:51,231 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 04:23:51,231 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 04:23:51,231 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 04:23:51,231 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 04:23:51,231 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 04:23:51,231 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 04:23:51,231 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 04:23:51,232 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-02 04:23:51,232 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-04-02 04:23:51,232 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-02 04:23:51,232 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2023-04-02 04:23:51,232 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-02 04:23:51,232 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-02 04:23:51,232 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-02 04:23:51,232 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-02 04:23:51,232 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-02 04:23:51,233 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-02 04:23:51,233 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-02 04:23:51,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 04:23:51,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 04:23:51,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 04:23:51,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 04:23:51,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 04:23:51,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 04:23:51,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2023-04-02 04:23:51,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 04:23:51,233 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 04:23:51,234 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 04:23:51,234 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 04:23:51,234 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 04:23:51,234 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-02 04:23:51,234 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-02 04:23:51,234 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-02 04:23:51,234 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-02 04:23:51,234 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-02 04:23:51,234 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-02 04:23:51,234 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-02 04:23:51,234 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 04:23:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 04:23:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 04:23:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 04:23:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 04:23:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 04:23:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 04:23:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 04:23:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-02 04:23:51,235 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-02 04:23:51,236 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-02 04:23:51,236 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 04:23:51,236 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 04:23:51,237 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 04:23:51,237 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 04:23:51,237 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 04:23:51,237 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 04:23:51,238 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 04:23:51,238 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 04:23:51,238 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-02 04:23:51,238 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-02 04:23:51,238 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-02 04:23:51,239 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-02 04:23:51,239 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-02 04:23:51,239 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-02 04:23:51,239 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-02 04:23:51,239 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-02 04:23:51,239 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2023-04-02 04:23:51,239 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-02 04:23:51,239 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-02 04:23:51,239 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-02 04:23:51,239 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-04-02 04:23:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-02 04:23:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2023-04-02 04:23:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 04:23:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 04:23:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 04:23:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 04:23:51,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 04:23:51,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 04:23:51,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 04:23:51,241 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 04:23:51,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 04:23:51,241 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 04:23:51,241 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 04:23:51,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 04:23:51,241 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 04:23:51,241 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 04:23:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 04:23:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 04:23:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-02 04:23:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 04:23:51,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 04:23:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 04:23:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 04:23:51,401 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 04:23:51,403 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 04:23:51,901 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 04:23:51,908 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 04:23:51,908 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-02 04:23:51,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:23:51 BoogieIcfgContainer [2023-04-02 04:23:51,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 04:23:51,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 04:23:51,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 04:23:51,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 04:23:51,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 04:23:50" (1/3) ... [2023-04-02 04:23:51,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bda823e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:23:51, skipping insertion in model container [2023-04-02 04:23:51,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:23:51" (2/3) ... [2023-04-02 04:23:51,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bda823e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:23:51, skipping insertion in model container [2023-04-02 04:23:51,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:23:51" (3/3) ... [2023-04-02 04:23:51,922 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product47.cil.c [2023-04-02 04:23:51,935 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 04:23:51,935 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 04:23:51,992 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 04:23:51,997 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@635b2599, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 04:23:51,997 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 04:23:52,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 182 states, 100 states have (on average 1.3) internal successors, (130), 115 states have internal predecessors, (130), 49 states have call successors, (49), 30 states have call predecessors, (49), 30 states have return successors, (49), 45 states have call predecessors, (49), 49 states have call successors, (49) [2023-04-02 04:23:52,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-04-02 04:23:52,011 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:23:52,012 INFO L195 NwaCegarLoop]: 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] [2023-04-02 04:23:52,013 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:23:52,017 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:23:52,018 INFO L85 PathProgramCache]: Analyzing trace with hash -730393932, now seen corresponding path program 1 times [2023-04-02 04:23:52,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:23:52,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010570536] [2023-04-02 04:23:52,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:23:52,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:23:52,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:52,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:23:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:52,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:23:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:52,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:23:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:52,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:23:52,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:52,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:23:52,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:52,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:23:52,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:52,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:23:52,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:52,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:23:52,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:23:52,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010570536] [2023-04-02 04:23:52,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010570536] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:23:52,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:23:52,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 04:23:52,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526839248] [2023-04-02 04:23:52,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:23:52,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 04:23:52,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:23:52,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 04:23:52,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 04:23:52,298 INFO L87 Difference]: Start difference. First operand has 182 states, 100 states have (on average 1.3) internal successors, (130), 115 states have internal predecessors, (130), 49 states have call successors, (49), 30 states have call predecessors, (49), 30 states have return successors, (49), 45 states have call predecessors, (49), 49 states have call successors, (49) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 04:23:52,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:23:52,776 INFO L93 Difference]: Finished difference Result 323 states and 421 transitions. [2023-04-02 04:23:52,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 04:23:52,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 46 [2023-04-02 04:23:52,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:23:52,791 INFO L225 Difference]: With dead ends: 323 [2023-04-02 04:23:52,791 INFO L226 Difference]: Without dead ends: 175 [2023-04-02 04:23:52,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 04:23:52,800 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 100 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:23:52,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 21 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:23:52,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2023-04-02 04:23:52,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 139. [2023-04-02 04:23:52,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 81 states have (on average 1.2469135802469136) internal successors, (101), 93 states have internal predecessors, (101), 34 states have call successors, (34), 28 states have call predecessors, (34), 23 states have return successors, (29), 25 states have call predecessors, (29), 29 states have call successors, (29) [2023-04-02 04:23:52,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 164 transitions. [2023-04-02 04:23:52,864 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 164 transitions. Word has length 46 [2023-04-02 04:23:52,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:23:52,865 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 164 transitions. [2023-04-02 04:23:52,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 04:23:52,866 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 164 transitions. [2023-04-02 04:23:52,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-04-02 04:23:52,872 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:23:52,872 INFO L195 NwaCegarLoop]: 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] [2023-04-02 04:23:52,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 04:23:52,873 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:23:52,875 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:23:52,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1546050330, now seen corresponding path program 1 times [2023-04-02 04:23:52,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:23:52,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941565444] [2023-04-02 04:23:52,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:23:52,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:23:52,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:52,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:23:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:53,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:23:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:53,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:23:53,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:53,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:23:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:53,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:23:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:53,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:23:53,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:53,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 04:23:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:53,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:23:53,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:23:53,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941565444] [2023-04-02 04:23:53,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941565444] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:23:53,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:23:53,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 04:23:53,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006012644] [2023-04-02 04:23:53,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:23:53,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 04:23:53,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:23:53,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 04:23:53,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 04:23:53,031 INFO L87 Difference]: Start difference. First operand 139 states and 164 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 04:23:53,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:23:53,354 INFO L93 Difference]: Finished difference Result 250 states and 304 transitions. [2023-04-02 04:23:53,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 04:23:53,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 47 [2023-04-02 04:23:53,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:23:53,356 INFO L225 Difference]: With dead ends: 250 [2023-04-02 04:23:53,356 INFO L226 Difference]: Without dead ends: 159 [2023-04-02 04:23:53,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 04:23:53,358 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 110 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:23:53,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 28 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:23:53,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-04-02 04:23:53,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 130. [2023-04-02 04:23:53,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 75 states have (on average 1.2533333333333334) internal successors, (94), 87 states have internal predecessors, (94), 31 states have call successors, (31), 27 states have call predecessors, (31), 23 states have return successors, (27), 23 states have call predecessors, (27), 27 states have call successors, (27) [2023-04-02 04:23:53,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 152 transitions. [2023-04-02 04:23:53,404 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 152 transitions. Word has length 47 [2023-04-02 04:23:53,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:23:53,404 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 152 transitions. [2023-04-02 04:23:53,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 04:23:53,405 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 152 transitions. [2023-04-02 04:23:53,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-04-02 04:23:53,406 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:23:53,406 INFO L195 NwaCegarLoop]: 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] [2023-04-02 04:23:53,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 04:23:53,406 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:23:53,407 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:23:53,407 INFO L85 PathProgramCache]: Analyzing trace with hash -605691159, now seen corresponding path program 1 times [2023-04-02 04:23:53,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:23:53,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718993670] [2023-04-02 04:23:53,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:23:53,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:23:53,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:53,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:23:53,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:53,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:23:53,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:53,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:23:53,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:53,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:23:53,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:53,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:23:53,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:53,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:23:53,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:53,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:23:53,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:53,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:23:53,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:23:53,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718993670] [2023-04-02 04:23:53,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718993670] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:23:53,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:23:53,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:23:53,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071069931] [2023-04-02 04:23:53,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:23:53,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:23:53,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:23:53,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:23:53,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:23:53,614 INFO L87 Difference]: Start difference. First operand 130 states and 152 transitions. Second operand has 8 states, 8 states have (on average 3.875) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-02 04:23:54,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:23:54,265 INFO L93 Difference]: Finished difference Result 446 states and 552 transitions. [2023-04-02 04:23:54,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 04:23:54,266 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 51 [2023-04-02 04:23:54,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:23:54,268 INFO L225 Difference]: With dead ends: 446 [2023-04-02 04:23:54,269 INFO L226 Difference]: Without dead ends: 340 [2023-04-02 04:23:54,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-04-02 04:23:54,270 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 349 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 1101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:23:54,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 101 Invalid, 1101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 934 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:23:54,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2023-04-02 04:23:54,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 278. [2023-04-02 04:23:54,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 167 states have (on average 1.2874251497005988) internal successors, (215), 191 states have internal predecessors, (215), 62 states have call successors, (62), 54 states have call predecessors, (62), 48 states have return successors, (59), 46 states have call predecessors, (59), 58 states have call successors, (59) [2023-04-02 04:23:54,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 336 transitions. [2023-04-02 04:23:54,312 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 336 transitions. Word has length 51 [2023-04-02 04:23:54,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:23:54,312 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 336 transitions. [2023-04-02 04:23:54,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-02 04:23:54,312 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 336 transitions. [2023-04-02 04:23:54,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-04-02 04:23:54,313 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:23:54,313 INFO L195 NwaCegarLoop]: 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] [2023-04-02 04:23:54,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 04:23:54,314 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:23:54,314 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:23:54,314 INFO L85 PathProgramCache]: Analyzing trace with hash 215404280, now seen corresponding path program 1 times [2023-04-02 04:23:54,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:23:54,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006848910] [2023-04-02 04:23:54,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:23:54,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:23:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:54,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:23:54,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:54,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:23:54,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:54,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:23:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:54,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:23:54,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:54,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:23:54,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:54,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:23:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:54,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:23:54,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:54,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 04:23:54,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:54,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:23:54,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:23:54,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006848910] [2023-04-02 04:23:54,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006848910] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:23:54,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:23:54,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 04:23:54,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186918992] [2023-04-02 04:23:54,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:23:54,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 04:23:54,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:23:54,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 04:23:54,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-04-02 04:23:54,521 INFO L87 Difference]: Start difference. First operand 278 states and 336 transitions. Second operand has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (14), 6 states have call predecessors, (14), 4 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-02 04:23:55,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:23:55,663 INFO L93 Difference]: Finished difference Result 1133 states and 1552 transitions. [2023-04-02 04:23:55,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-02 04:23:55,664 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (14), 6 states have call predecessors, (14), 4 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 57 [2023-04-02 04:23:55,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:23:55,672 INFO L225 Difference]: With dead ends: 1133 [2023-04-02 04:23:55,672 INFO L226 Difference]: Without dead ends: 879 [2023-04-02 04:23:55,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2023-04-02 04:23:55,678 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 466 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 1441 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 1684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 1441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 04:23:55,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 127 Invalid, 1684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 1441 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 04:23:55,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2023-04-02 04:23:55,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 782. [2023-04-02 04:23:55,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 470 states have (on average 1.2595744680851064) internal successors, (592), 540 states have internal predecessors, (592), 166 states have call successors, (166), 135 states have call predecessors, (166), 145 states have return successors, (236), 136 states have call predecessors, (236), 162 states have call successors, (236) [2023-04-02 04:23:55,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 994 transitions. [2023-04-02 04:23:55,771 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 994 transitions. Word has length 57 [2023-04-02 04:23:55,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:23:55,771 INFO L495 AbstractCegarLoop]: Abstraction has 782 states and 994 transitions. [2023-04-02 04:23:55,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (14), 6 states have call predecessors, (14), 4 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-02 04:23:55,772 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 994 transitions. [2023-04-02 04:23:55,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-04-02 04:23:55,773 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:23:55,773 INFO L195 NwaCegarLoop]: 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] [2023-04-02 04:23:55,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 04:23:55,773 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:23:55,774 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:23:55,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1109031298, now seen corresponding path program 1 times [2023-04-02 04:23:55,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:23:55,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654997791] [2023-04-02 04:23:55,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:23:55,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:23:55,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:55,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:23:55,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:55,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:23:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:55,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:23:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:55,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:23:55,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:55,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:23:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:55,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:23:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:55,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:23:55,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:55,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:23:55,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:55,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:23:55,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:55,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:23:55,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:23:55,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654997791] [2023-04-02 04:23:55,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654997791] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:23:55,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:23:55,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 04:23:55,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293211996] [2023-04-02 04:23:55,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:23:55,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 04:23:55,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:23:55,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 04:23:55,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 04:23:55,913 INFO L87 Difference]: Start difference. First operand 782 states and 994 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 04:23:56,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:23:56,400 INFO L93 Difference]: Finished difference Result 1911 states and 2577 transitions. [2023-04-02 04:23:56,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 04:23:56,400 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 61 [2023-04-02 04:23:56,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:23:56,407 INFO L225 Difference]: With dead ends: 1911 [2023-04-02 04:23:56,408 INFO L226 Difference]: Without dead ends: 1153 [2023-04-02 04:23:56,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-04-02 04:23:56,416 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 498 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:23:56,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 59 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:23:56,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2023-04-02 04:23:56,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 1066. [2023-04-02 04:23:56,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1066 states, 655 states have (on average 1.216793893129771) internal successors, (797), 710 states have internal predecessors, (797), 199 states have call successors, (199), 177 states have call predecessors, (199), 211 states have return successors, (332), 210 states have call predecessors, (332), 195 states have call successors, (332) [2023-04-02 04:23:56,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 1328 transitions. [2023-04-02 04:23:56,509 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 1328 transitions. Word has length 61 [2023-04-02 04:23:56,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:23:56,509 INFO L495 AbstractCegarLoop]: Abstraction has 1066 states and 1328 transitions. [2023-04-02 04:23:56,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 04:23:56,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 1328 transitions. [2023-04-02 04:23:56,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-04-02 04:23:56,511 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:23:56,511 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:23:56,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 04:23:56,511 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:23:56,511 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:23:56,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1268323065, now seen corresponding path program 1 times [2023-04-02 04:23:56,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:23:56,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42532126] [2023-04-02 04:23:56,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:23:56,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:23:56,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:56,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:23:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:56,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:23:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:56,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:23:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:56,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:23:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:56,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:23:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:56,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:23:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:56,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:23:56,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:56,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 04:23:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:56,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:23:56,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:56,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:23:56,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:56,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 04:23:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:56,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 04:23:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:56,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 04:23:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:56,705 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-02 04:23:56,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:23:56,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42532126] [2023-04-02 04:23:56,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42532126] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:23:56,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122595447] [2023-04-02 04:23:56,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:23:56,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:23:56,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:23:56,708 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 04:23:56,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-02 04:23:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:23:56,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 15 conjunts are in the unsatisfiable core [2023-04-02 04:23:56,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:23:57,012 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-02 04:23:57,012 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 04:23:57,220 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:23:57,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122595447] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 04:23:57,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 04:23:57,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 8] total 18 [2023-04-02 04:23:57,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491575066] [2023-04-02 04:23:57,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 04:23:57,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-04-02 04:23:57,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:23:57,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-04-02 04:23:57,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2023-04-02 04:23:57,222 INFO L87 Difference]: Start difference. First operand 1066 states and 1328 transitions. Second operand has 18 states, 18 states have (on average 5.777777777777778) internal successors, (104), 12 states have internal predecessors, (104), 7 states have call successors, (46), 12 states have call predecessors, (46), 11 states have return successors, (34), 8 states have call predecessors, (34), 7 states have call successors, (34) [2023-04-02 04:24:00,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:24:00,987 INFO L93 Difference]: Finished difference Result 2911 states and 3815 transitions. [2023-04-02 04:24:00,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2023-04-02 04:24:00,988 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.777777777777778) internal successors, (104), 12 states have internal predecessors, (104), 7 states have call successors, (46), 12 states have call predecessors, (46), 11 states have return successors, (34), 8 states have call predecessors, (34), 7 states have call successors, (34) Word has length 88 [2023-04-02 04:24:00,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:24:00,996 INFO L225 Difference]: With dead ends: 2911 [2023-04-02 04:24:00,996 INFO L226 Difference]: Without dead ends: 2146 [2023-04-02 04:24:01,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 216 SyntacticMatches, 8 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2963 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1543, Invalid=7199, Unknown=0, NotChecked=0, Total=8742 [2023-04-02 04:24:01,001 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 1446 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 3801 mSolverCounterSat, 963 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1465 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 4764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 963 IncrementalHoareTripleChecker+Valid, 3801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-04-02 04:24:01,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1465 Valid, 300 Invalid, 4764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [963 Valid, 3801 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-04-02 04:24:01,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2146 states. [2023-04-02 04:24:01,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2146 to 1885. [2023-04-02 04:24:01,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1885 states, 1180 states have (on average 1.2110169491525424) internal successors, (1429), 1264 states have internal predecessors, (1429), 335 states have call successors, (335), 317 states have call predecessors, (335), 369 states have return successors, (538), 347 states have call predecessors, (538), 331 states have call successors, (538) [2023-04-02 04:24:01,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1885 states to 1885 states and 2302 transitions. [2023-04-02 04:24:01,177 INFO L78 Accepts]: Start accepts. Automaton has 1885 states and 2302 transitions. Word has length 88 [2023-04-02 04:24:01,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:24:01,178 INFO L495 AbstractCegarLoop]: Abstraction has 1885 states and 2302 transitions. [2023-04-02 04:24:01,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.777777777777778) internal successors, (104), 12 states have internal predecessors, (104), 7 states have call successors, (46), 12 states have call predecessors, (46), 11 states have return successors, (34), 8 states have call predecessors, (34), 7 states have call successors, (34) [2023-04-02 04:24:01,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1885 states and 2302 transitions. [2023-04-02 04:24:01,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-04-02 04:24:01,181 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:24:01,181 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:24:01,197 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-04-02 04:24:01,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-04-02 04:24:01,396 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:24:01,396 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:24:01,396 INFO L85 PathProgramCache]: Analyzing trace with hash 712543802, now seen corresponding path program 1 times [2023-04-02 04:24:01,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:24:01,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922795913] [2023-04-02 04:24:01,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:24:01,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:24:01,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:01,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:24:01,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:01,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:24:01,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:01,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:24:01,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:01,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:24:01,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:01,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:24:01,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:01,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:24:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:01,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:24:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:01,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:24:01,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:01,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:24:01,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:01,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:24:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:01,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:24:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:01,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:24:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:01,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:24:01,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:01,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:24:01,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:01,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 04:24:01,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:01,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:24:01,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:01,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 04:24:01,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:01,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 04:24:01,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:01,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:24:01,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:01,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:24:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:01,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:24:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:01,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:24:01,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:01,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-04-02 04:24:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:01,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-04-02 04:24:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:01,589 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-04-02 04:24:01,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:24:01,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922795913] [2023-04-02 04:24:01,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922795913] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:24:01,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867828044] [2023-04-02 04:24:01,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:24:01,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:24:01,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:24:01,590 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 04:24:01,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-02 04:24:01,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:01,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 11 conjunts are in the unsatisfiable core [2023-04-02 04:24:01,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:24:01,718 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-04-02 04:24:01,718 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 04:24:01,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867828044] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:24:01,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 04:24:01,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 10 [2023-04-02 04:24:01,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122039340] [2023-04-02 04:24:01,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:24:01,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 04:24:01,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:24:01,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 04:24:01,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-04-02 04:24:01,720 INFO L87 Difference]: Start difference. First operand 1885 states and 2302 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-02 04:24:01,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:24:01,860 INFO L93 Difference]: Finished difference Result 3770 states and 4819 transitions. [2023-04-02 04:24:01,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 04:24:01,860 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 145 [2023-04-02 04:24:01,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:24:01,867 INFO L225 Difference]: With dead ends: 3770 [2023-04-02 04:24:01,868 INFO L226 Difference]: Without dead ends: 1955 [2023-04-02 04:24:01,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 04:24:01,872 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 4 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 04:24:01,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 743 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 04:24:01,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1955 states. [2023-04-02 04:24:01,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1955 to 1935. [2023-04-02 04:24:01,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1935 states, 1220 states have (on average 1.2040983606557376) internal successors, (1469), 1304 states have internal predecessors, (1469), 335 states have call successors, (335), 317 states have call predecessors, (335), 379 states have return successors, (552), 357 states have call predecessors, (552), 331 states have call successors, (552) [2023-04-02 04:24:01,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1935 states to 1935 states and 2356 transitions. [2023-04-02 04:24:01,997 INFO L78 Accepts]: Start accepts. Automaton has 1935 states and 2356 transitions. Word has length 145 [2023-04-02 04:24:01,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:24:01,997 INFO L495 AbstractCegarLoop]: Abstraction has 1935 states and 2356 transitions. [2023-04-02 04:24:01,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-02 04:24:01,997 INFO L276 IsEmpty]: Start isEmpty. Operand 1935 states and 2356 transitions. [2023-04-02 04:24:02,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-04-02 04:24:02,000 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:24:02,000 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:24:02,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-02 04:24:02,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-04-02 04:24:02,208 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:24:02,208 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:24:02,208 INFO L85 PathProgramCache]: Analyzing trace with hash -344187400, now seen corresponding path program 1 times [2023-04-02 04:24:02,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:24:02,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718990156] [2023-04-02 04:24:02,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:24:02,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:24:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:02,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:24:02,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:02,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:24:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:02,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:24:02,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:02,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:24:02,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:02,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:24:02,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:02,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:24:02,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:02,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:24:02,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:02,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:24:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:02,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:24:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:02,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:24:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:02,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:24:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:02,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:24:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:02,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:24:02,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:02,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:24:02,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:02,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 04:24:02,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:02,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:24:02,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:02,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 04:24:02,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:02,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 04:24:02,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:02,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:24:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:02,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:24:02,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:02,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:24:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:02,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:24:02,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:02,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-04-02 04:24:02,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:02,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-04-02 04:24:02,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:02,379 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-04-02 04:24:02,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:24:02,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718990156] [2023-04-02 04:24:02,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718990156] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:24:02,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059163833] [2023-04-02 04:24:02,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:24:02,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:24:02,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:24:02,380 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 04:24:02,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-02 04:24:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:02,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 04:24:02,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:24:02,518 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-04-02 04:24:02,519 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 04:24:02,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059163833] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:24:02,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 04:24:02,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-04-02 04:24:02,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484724616] [2023-04-02 04:24:02,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:24:02,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 04:24:02,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:24:02,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 04:24:02,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2023-04-02 04:24:02,520 INFO L87 Difference]: Start difference. First operand 1935 states and 2356 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-02 04:24:02,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:24:02,635 INFO L93 Difference]: Finished difference Result 3385 states and 4238 transitions. [2023-04-02 04:24:02,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 04:24:02,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 145 [2023-04-02 04:24:02,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:24:02,641 INFO L225 Difference]: With dead ends: 3385 [2023-04-02 04:24:02,641 INFO L226 Difference]: Without dead ends: 1520 [2023-04-02 04:24:02,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2023-04-02 04:24:02,646 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 3 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 04:24:02,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 595 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 04:24:02,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1520 states. [2023-04-02 04:24:02,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1520 to 1474. [2023-04-02 04:24:02,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1474 states, 939 states have (on average 1.2055378061767839) internal successors, (1132), 1000 states have internal predecessors, (1132), 261 states have call successors, (261), 253 states have call predecessors, (261), 273 states have return successors, (402), 260 states have call predecessors, (402), 257 states have call successors, (402) [2023-04-02 04:24:02,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 1795 transitions. [2023-04-02 04:24:02,752 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 1795 transitions. Word has length 145 [2023-04-02 04:24:02,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:24:02,753 INFO L495 AbstractCegarLoop]: Abstraction has 1474 states and 1795 transitions. [2023-04-02 04:24:02,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-02 04:24:02,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 1795 transitions. [2023-04-02 04:24:02,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-04-02 04:24:02,758 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:24:02,758 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:24:02,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-02 04:24:02,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:24:02,964 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:24:02,964 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:24:02,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1901817027, now seen corresponding path program 1 times [2023-04-02 04:24:02,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:24:02,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704171214] [2023-04-02 04:24:02,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:24:02,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:24:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:03,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:24:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:03,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:24:03,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:03,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:24:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:03,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:24:03,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:03,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:24:03,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:03,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:24:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:03,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 04:24:03,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:03,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:24:03,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:03,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:24:03,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:03,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:24:03,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:03,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:24:03,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:03,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:24:03,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:03,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:24:03,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:03,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:24:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:03,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:24:03,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:03,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 04:24:03,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:03,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:24:03,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:03,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 04:24:03,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:03,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 04:24:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:03,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:24:03,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:03,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:24:03,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:03,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:24:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:03,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:24:03,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:03,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-04-02 04:24:03,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:03,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-04-02 04:24:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:03,273 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-04-02 04:24:03,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:24:03,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704171214] [2023-04-02 04:24:03,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704171214] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:24:03,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172157660] [2023-04-02 04:24:03,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:24:03,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:24:03,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:24:03,275 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 04:24:03,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-02 04:24:03,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:24:03,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 11 conjunts are in the unsatisfiable core [2023-04-02 04:24:03,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:24:03,532 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:24:03,532 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 04:24:03,814 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-04-02 04:24:03,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172157660] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 04:24:03,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 04:24:03,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 20 [2023-04-02 04:24:03,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527092946] [2023-04-02 04:24:03,815 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 04:24:03,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-04-02 04:24:03,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:24:03,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-04-02 04:24:03,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2023-04-02 04:24:03,816 INFO L87 Difference]: Start difference. First operand 1474 states and 1795 transitions. Second operand has 20 states, 20 states have (on average 6.85) internal successors, (137), 12 states have internal predecessors, (137), 5 states have call successors, (56), 11 states have call predecessors, (56), 9 states have return successors, (41), 7 states have call predecessors, (41), 5 states have call successors, (41) [2023-04-02 04:24:05,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:24:05,276 INFO L93 Difference]: Finished difference Result 3039 states and 3945 transitions. [2023-04-02 04:24:05,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-04-02 04:24:05,277 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.85) internal successors, (137), 12 states have internal predecessors, (137), 5 states have call successors, (56), 11 states have call predecessors, (56), 9 states have return successors, (41), 7 states have call predecessors, (41), 5 states have call successors, (41) Word has length 149 [2023-04-02 04:24:05,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:24:05,285 INFO L225 Difference]: With dead ends: 3039 [2023-04-02 04:24:05,285 INFO L226 Difference]: Without dead ends: 1744 [2023-04-02 04:24:05,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 342 SyntacticMatches, 10 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 487 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=463, Invalid=1343, Unknown=0, NotChecked=0, Total=1806 [2023-04-02 04:24:05,290 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 716 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 1817 mSolverCounterSat, 457 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 2274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 457 IncrementalHoareTripleChecker+Valid, 1817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-02 04:24:05,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 290 Invalid, 2274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [457 Valid, 1817 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-02 04:24:05,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2023-04-02 04:24:05,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1348. [2023-04-02 04:24:05,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1348 states, 851 states have (on average 1.1880141010575793) internal successors, (1011), 909 states have internal predecessors, (1011), 242 states have call successors, (242), 234 states have call predecessors, (242), 254 states have return successors, (380), 237 states have call predecessors, (380), 238 states have call successors, (380) [2023-04-02 04:24:05,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 1633 transitions. [2023-04-02 04:24:05,396 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 1633 transitions. Word has length 149 [2023-04-02 04:24:05,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:24:05,397 INFO L495 AbstractCegarLoop]: Abstraction has 1348 states and 1633 transitions. [2023-04-02 04:24:05,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.85) internal successors, (137), 12 states have internal predecessors, (137), 5 states have call successors, (56), 11 states have call predecessors, (56), 9 states have return successors, (41), 7 states have call predecessors, (41), 5 states have call successors, (41) [2023-04-02 04:24:05,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 1633 transitions. [2023-04-02 04:24:05,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-04-02 04:24:05,401 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:24:05,401 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:24:05,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-04-02 04:24:05,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:24:05,607 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:24:05,607 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:24:05,607 INFO L85 PathProgramCache]: Analyzing trace with hash 894733474, now seen corresponding path program 2 times [2023-04-02 04:24:05,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:24:05,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274129720] [2023-04-02 04:24:05,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:24:05,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:24:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:24:05,623 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-02 04:24:05,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:24:05,673 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-04-02 04:24:05,673 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-02 04:24:05,674 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 04:24:05,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 04:24:05,685 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:24:05,688 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 04:24:05,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 04:24:05 BoogieIcfgContainer [2023-04-02 04:24:05,767 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 04:24:05,768 INFO L158 Benchmark]: Toolchain (without parser) took 15014.82ms. Allocated memory was 178.3MB in the beginning and 565.2MB in the end (delta: 386.9MB). Free memory was 116.9MB in the beginning and 257.5MB in the end (delta: -140.6MB). Peak memory consumption was 247.9MB. Max. memory is 8.0GB. [2023-04-02 04:24:05,768 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 178.3MB. Free memory is still 128.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 04:24:05,768 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.22ms. Allocated memory is still 178.3MB. Free memory was 116.9MB in the beginning and 98.3MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-04-02 04:24:05,768 INFO L158 Benchmark]: Boogie Preprocessor took 52.83ms. Allocated memory is still 178.3MB. Free memory was 98.3MB in the beginning and 94.9MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-02 04:24:05,768 INFO L158 Benchmark]: RCFGBuilder took 791.83ms. Allocated memory was 178.3MB in the beginning and 326.1MB in the end (delta: 147.8MB). Free memory was 94.9MB in the beginning and 255.6MB in the end (delta: -160.7MB). Peak memory consumption was 7.1MB. Max. memory is 8.0GB. [2023-04-02 04:24:05,769 INFO L158 Benchmark]: TraceAbstraction took 13849.93ms. Allocated memory was 326.1MB in the beginning and 565.2MB in the end (delta: 239.1MB). Free memory was 254.6MB in the beginning and 257.5MB in the end (delta: -2.9MB). Peak memory consumption was 236.7MB. Max. memory is 8.0GB. [2023-04-02 04:24:05,769 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 178.3MB. Free memory is still 128.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 313.22ms. Allocated memory is still 178.3MB. Free memory was 116.9MB in the beginning and 98.3MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 52.83ms. Allocated memory is still 178.3MB. Free memory was 98.3MB in the beginning and 94.9MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 791.83ms. Allocated memory was 178.3MB in the beginning and 326.1MB in the end (delta: 147.8MB). Free memory was 94.9MB in the beginning and 255.6MB in the end (delta: -160.7MB). Peak memory consumption was 7.1MB. Max. memory is 8.0GB. * TraceAbstraction took 13849.93ms. Allocated memory was 326.1MB in the beginning and 565.2MB in the end (delta: 239.1MB). Free memory was 254.6MB in the beginning and 257.5MB in the end (delta: -2.9MB). Peak memory consumption was 236.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 838]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L229] int pumpRunning = 0; [L230] int systemActive = 1; [L609] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L878] int waterLevel = 1; [L879] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=55, \old(head)={49:54}, \old(methaneLevelCritical)=53, \old(pumpRunning)=57, \old(systemActive)=52, \old(waterLevel)=51, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L136] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L137] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L138] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L869] int retValue_acc ; [L872] retValue_acc = 1 [L873] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L142] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L143] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L122] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L156] int splverifierCounter ; [L157] int tmp ; [L158] int tmp___0 ; [L159] int tmp___1 ; [L160] int tmp___2 ; [L163] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L165] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L167] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L173] tmp = __VERIFIER_nondet_int() [L175] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L177] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L896] COND TRUE waterLevel < 2 [L897] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L177] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L183] tmp___0 = __VERIFIER_nondet_int() [L185] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, waterLevel=2] [L193] tmp___2 = __VERIFIER_nondet_int() [L195] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L210] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L237] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L244] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L246] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L292] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L295] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L310] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L266] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L269] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L271] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L406] int retValue_acc ; [L407] int tmp ; [L408] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L412] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L958] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L961] COND FALSE !(waterLevel < 2) [L965] retValue_acc = 0 [L966] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L412] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L412] tmp = isHighWaterSensorDry() [L414] COND FALSE !(\read(tmp)) [L417] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L419] retValue_acc = tmp___0 [L420] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L271] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L271] tmp = isHighWaterLevel() [L273] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L275] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L325] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L329] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L350] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L354] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L917] int retValue_acc ; [L920] retValue_acc = methaneLevelCritical [L921] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L354] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L354] retValue_acc = isMethaneLevelCritical() [L356] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L329] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L329] tmp = isMethaneAlarm() [L331] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L335] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L320] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L335] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L275] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L310] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L246] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L252] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L809] int tmp ; [L810] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L814] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L949] int retValue_acc ; [L952] retValue_acc = waterLevel [L953] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L814] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L814] tmp = getWaterLevel() [L816] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L252] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L210] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L165] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L167] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L173] tmp = __VERIFIER_nondet_int() [L175] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L183] tmp___0 = __VERIFIER_nondet_int() [L185] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L193] tmp___2 = __VERIFIER_nondet_int() [L195] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L210] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L237] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L239] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L884] COND TRUE waterLevel > 0 [L885] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L239] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L244] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L246] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L292] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L295] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L297] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L350] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L354] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L917] int retValue_acc ; [L920] retValue_acc = methaneLevelCritical [L921] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L354] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L354] retValue_acc = isMethaneLevelCritical() [L356] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L297] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L297] tmp = isMethaneAlarm() [L299] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L305] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L266] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L269] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L284] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L305] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L246] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L252] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L809] int tmp ; [L810] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L814] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L949] int retValue_acc ; [L952] retValue_acc = waterLevel [L953] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L814] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L814] tmp = getWaterLevel() [L816] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L252] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L210] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L165] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L167] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L173] tmp = __VERIFIER_nondet_int() [L175] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L183] tmp___0 = __VERIFIER_nondet_int() [L185] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L193] tmp___2 = __VERIFIER_nondet_int() [L195] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L210] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L237] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L239] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L884] COND TRUE waterLevel > 0 [L885] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L239] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L244] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L246] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L292] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L295] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L297] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L350] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L354] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L917] int retValue_acc ; [L920] retValue_acc = methaneLevelCritical [L921] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L354] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L354] retValue_acc = isMethaneLevelCritical() [L356] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L297] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L297] tmp = isMethaneAlarm() [L299] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L305] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L266] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L269] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L284] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L305] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L246] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L252] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L809] int tmp ; [L810] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L814] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L949] int retValue_acc ; [L952] retValue_acc = waterLevel [L953] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L814] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L814] tmp = getWaterLevel() [L816] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L818] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L361] int retValue_acc ; [L364] retValue_acc = pumpRunning [L365] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L818] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L818] tmp___0 = isPumpRunning() [L820] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L822] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L838] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 241 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.7s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3805 SdHoareTripleChecker+Valid, 5.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3692 mSDsluCounter, 2264 SdHoareTripleChecker+Invalid, 4.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1848 mSDsCounter, 2244 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8875 IncrementalHoareTripleChecker+Invalid, 11119 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2244 mSolverCounterUnsat, 416 mSDtfsCounter, 8875 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1253 GetRequests, 1031 SyntacticMatches, 18 SemanticMatches, 204 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3604 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1935occurred in iteration=7, InterpolantAutomatonStates: 176, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 9 MinimizatonAttempts, 1034 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1516 NumberOfCodeBlocks, 1516 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1538 ConstructedInterpolants, 0 QuantifiedInterpolants, 2857 SizeOfPredicates, 9 NumberOfNonLiveVariables, 1872 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 276/321 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! [2023-04-02 04:24:05,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...