/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_spec3_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 04:19:25,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 04:19:25,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 04:19:25,192 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 04:19:25,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 04:19:25,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 04:19:25,198 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 04:19:25,200 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 04:19:25,201 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 04:19:25,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 04:19:25,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 04:19:25,209 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 04:19:25,209 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 04:19:25,212 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 04:19:25,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 04:19:25,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 04:19:25,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 04:19:25,215 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 04:19:25,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 04:19:25,222 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 04:19:25,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 04:19:25,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 04:19:25,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 04:19:25,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 04:19:25,233 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 04:19:25,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 04:19:25,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 04:19:25,235 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 04:19:25,235 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 04:19:25,236 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 04:19:25,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 04:19:25,237 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 04:19:25,238 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 04:19:25,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 04:19:25,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 04:19:25,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 04:19:25,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 04:19:25,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 04:19:25,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 04:19:25,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 04:19:25,241 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 04:19:25,243 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 04:19:25,271 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 04:19:25,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 04:19:25,271 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 04:19:25,272 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 04:19:25,273 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 04:19:25,273 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 04:19:25,274 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 04:19:25,274 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 04:19:25,274 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 04:19:25,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 04:19:25,275 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 04:19:25,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 04:19:25,275 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 04:19:25,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 04:19:25,276 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 04:19:25,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 04:19:25,276 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 04:19:25,276 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 04:19:25,276 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 04:19:25,276 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 04:19:25,277 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 04:19:25,277 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 04:19:25,277 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 04:19:25,277 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 04:19:25,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:19:25,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 04:19:25,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 04:19:25,278 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 04:19:25,278 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 04:19:25,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 04:19:25,278 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 04:19:25,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 04:19:25,279 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 04:19:25,279 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 04:19:25,279 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 04:19:25,279 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 04:19:25,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 04:19:25,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 04:19:25,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 04:19:25,568 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 04:19:25,569 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 04:19:25,570 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2023-04-02 04:19:26,750 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 04:19:26,954 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 04:19:26,957 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2023-04-02 04:19:26,978 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b029838f/e3fc49d7f2cf4d138360e41a03cf904a/FLAGeb8787de3 [2023-04-02 04:19:26,995 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b029838f/e3fc49d7f2cf4d138360e41a03cf904a [2023-04-02 04:19:27,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 04:19:27,001 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 04:19:27,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 04:19:27,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 04:19:27,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 04:19:27,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:19:26" (1/1) ... [2023-04-02 04:19:27,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4896f75c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:27, skipping insertion in model container [2023-04-02 04:19:27,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:19:26" (1/1) ... [2023-04-02 04:19:27,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 04:19:27,056 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 04:19:27,365 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_spec3_product59.cil.c[15143,15156] [2023-04-02 04:19:27,393 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:19:27,407 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 04:19:27,454 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_spec3_product59.cil.c[15143,15156] [2023-04-02 04:19:27,462 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:19:27,484 INFO L208 MainTranslator]: Completed translation [2023-04-02 04:19:27,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:27 WrapperNode [2023-04-02 04:19:27,485 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 04:19:27,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 04:19:27,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 04:19:27,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 04:19:27,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:27" (1/1) ... [2023-04-02 04:19:27,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:27" (1/1) ... [2023-04-02 04:19:27,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:27" (1/1) ... [2023-04-02 04:19:27,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:27" (1/1) ... [2023-04-02 04:19:27,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:27" (1/1) ... [2023-04-02 04:19:27,535 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:27" (1/1) ... [2023-04-02 04:19:27,539 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:27" (1/1) ... [2023-04-02 04:19:27,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:27" (1/1) ... [2023-04-02 04:19:27,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 04:19:27,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 04:19:27,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 04:19:27,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 04:19:27,548 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:27" (1/1) ... [2023-04-02 04:19:27,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:19:27,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:19:27,577 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 04:19:27,579 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 04:19:27,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 04:19:27,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 04:19:27,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 04:19:27,617 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 04:19:27,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 04:19:27,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 04:19:27,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 04:19:27,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 04:19:27,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 04:19:27,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 04:19:27,618 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-02 04:19:27,618 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-02 04:19:27,619 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-02 04:19:27,619 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-02 04:19:27,619 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-02 04:19:27,619 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-02 04:19:27,619 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-02 04:19:27,619 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-04-02 04:19:27,619 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 04:19:27,619 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 04:19:27,620 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 04:19:27,620 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 04:19:27,620 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 04:19:27,620 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 04:19:27,620 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 04:19:27,620 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 04:19:27,620 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 04:19:27,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2023-04-02 04:19:27,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 04:19:27,621 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 04:19:27,621 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 04:19:27,621 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-02 04:19:27,621 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-04-02 04:19:27,621 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-02 04:19:27,621 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2023-04-02 04:19:27,622 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-02 04:19:27,622 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-02 04:19:27,622 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-02 04:19:27,622 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-02 04:19:27,622 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-02 04:19:27,622 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-02 04:19:27,622 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-04-02 04:19:27,622 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-02 04:19:27,623 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 04:19:27,623 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 04:19:27,623 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 04:19:27,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 04:19:27,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 04:19:27,623 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 04:19:27,623 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 04:19:27,623 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 04:19:27,624 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 04:19:27,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 04:19:27,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 04:19:27,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 04:19:27,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 04:19:27,624 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 04:19:27,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 04:19:27,624 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 04:19:27,624 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 04:19:27,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 04:19:27,625 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 04:19:27,625 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 04:19:27,625 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 04:19:27,625 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-02 04:19:27,625 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-02 04:19:27,625 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-02 04:19:27,625 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-02 04:19:27,625 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-02 04:19:27,626 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-02 04:19:27,626 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-02 04:19:27,626 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-04-02 04:19:27,626 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 04:19:27,626 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 04:19:27,626 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-02 04:19:27,626 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 04:19:27,626 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 04:19:27,627 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 04:19:27,627 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 04:19:27,627 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 04:19:27,627 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 04:19:27,627 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 04:19:27,627 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 04:19:27,627 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 04:19:27,627 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 04:19:27,627 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-02 04:19:27,628 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2023-04-02 04:19:27,628 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-02 04:19:27,628 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-02 04:19:27,628 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-02 04:19:27,628 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-02 04:19:27,628 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-02 04:19:27,628 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-02 04:19:27,628 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-04-02 04:19:27,629 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-04-02 04:19:27,629 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2023-04-02 04:19:27,629 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-02 04:19:27,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 04:19:27,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 04:19:27,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 04:19:27,813 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 04:19:27,829 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 04:19:28,372 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 04:19:28,381 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 04:19:28,382 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-02 04:19:28,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:19:28 BoogieIcfgContainer [2023-04-02 04:19:28,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 04:19:28,388 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 04:19:28,388 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 04:19:28,391 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 04:19:28,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 04:19:26" (1/3) ... [2023-04-02 04:19:28,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3624816d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:19:28, skipping insertion in model container [2023-04-02 04:19:28,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:27" (2/3) ... [2023-04-02 04:19:28,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3624816d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:19:28, skipping insertion in model container [2023-04-02 04:19:28,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:19:28" (3/3) ... [2023-04-02 04:19:28,393 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product59.cil.c [2023-04-02 04:19:28,408 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 04:19:28,409 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 04:19:28,472 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 04:19:28,477 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;@3dd05a08, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 04:19:28,478 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 04:19:28,482 INFO L276 IsEmpty]: Start isEmpty. Operand has 195 states, 109 states have (on average 1.2935779816513762) internal successors, (141), 124 states have internal predecessors, (141), 51 states have call successors, (51), 32 states have call predecessors, (51), 32 states have return successors, (51), 47 states have call predecessors, (51), 51 states have call successors, (51) [2023-04-02 04:19:28,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-04-02 04:19:28,495 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:19:28,495 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] [2023-04-02 04:19:28,496 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:19:28,501 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:19:28,502 INFO L85 PathProgramCache]: Analyzing trace with hash -359542385, now seen corresponding path program 1 times [2023-04-02 04:19:28,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:19:28,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131417596] [2023-04-02 04:19:28,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:19:28,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:19:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:28,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:19:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:28,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:19:28,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:28,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:19:28,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:28,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:19:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:28,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:19:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:28,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:19:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:28,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:19:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:28,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:19:28,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:28,807 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 04:19:28,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:19:28,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131417596] [2023-04-02 04:19:28,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131417596] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:19:28,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:19:28,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 04:19:28,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331231876] [2023-04-02 04:19:28,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:19:28,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 04:19:28,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:19:28,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 04:19:28,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 04:19:28,845 INFO L87 Difference]: Start difference. First operand has 195 states, 109 states have (on average 1.2935779816513762) internal successors, (141), 124 states have internal predecessors, (141), 51 states have call successors, (51), 32 states have call predecessors, (51), 32 states have return successors, (51), 47 states have call predecessors, (51), 51 states have call successors, (51) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:19:29,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:19:29,404 INFO L93 Difference]: Finished difference Result 349 states and 451 transitions. [2023-04-02 04:19:29,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 04:19:29,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 52 [2023-04-02 04:19:29,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:19:29,418 INFO L225 Difference]: With dead ends: 349 [2023-04-02 04:19:29,419 INFO L226 Difference]: Without dead ends: 188 [2023-04-02 04:19:29,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 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 04:19:29,425 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 113 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:19:29,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 23 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:19:29,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-04-02 04:19:29,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 152. [2023-04-02 04:19:29,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 90 states have (on average 1.2444444444444445) internal successors, (112), 102 states have internal predecessors, (112), 36 states have call successors, (36), 30 states have call predecessors, (36), 25 states have return successors, (31), 27 states have call predecessors, (31), 31 states have call successors, (31) [2023-04-02 04:19:29,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 179 transitions. [2023-04-02 04:19:29,537 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 179 transitions. Word has length 52 [2023-04-02 04:19:29,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:19:29,538 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 179 transitions. [2023-04-02 04:19:29,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:19:29,538 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 179 transitions. [2023-04-02 04:19:29,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-04-02 04:19:29,547 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:19:29,548 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] [2023-04-02 04:19:29,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 04:19:29,548 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:19:29,549 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:19:29,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1632754686, now seen corresponding path program 1 times [2023-04-02 04:19:29,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:19:29,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511520446] [2023-04-02 04:19:29,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:19:29,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:19:29,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:29,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:19:29,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:29,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:19:29,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:29,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:19:29,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:29,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:19:29,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:29,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:19:29,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:29,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:19:29,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:29,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 04:19:29,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:29,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 04:19:29,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:29,713 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 04:19:29,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:19:29,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511520446] [2023-04-02 04:19:29,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511520446] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:19:29,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:19:29,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 04:19:29,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64093254] [2023-04-02 04:19:29,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:19:29,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 04:19:29,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:19:29,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 04:19:29,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 04:19:29,717 INFO L87 Difference]: Start difference. First operand 152 states and 179 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:19:30,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:19:30,131 INFO L93 Difference]: Finished difference Result 276 states and 334 transitions. [2023-04-02 04:19:30,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 04:19:30,131 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 53 [2023-04-02 04:19:30,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:19:30,134 INFO L225 Difference]: With dead ends: 276 [2023-04-02 04:19:30,134 INFO L226 Difference]: Without dead ends: 172 [2023-04-02 04:19:30,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 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 04:19:30,136 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 123 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:19:30,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 31 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:19:30,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-04-02 04:19:30,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 143. [2023-04-02 04:19:30,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 84 states have (on average 1.25) internal successors, (105), 96 states have internal predecessors, (105), 33 states have call successors, (33), 29 states have call predecessors, (33), 25 states have return successors, (29), 25 states have call predecessors, (29), 29 states have call successors, (29) [2023-04-02 04:19:30,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 167 transitions. [2023-04-02 04:19:30,172 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 167 transitions. Word has length 53 [2023-04-02 04:19:30,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:19:30,173 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 167 transitions. [2023-04-02 04:19:30,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:19:30,173 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 167 transitions. [2023-04-02 04:19:30,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-04-02 04:19:30,177 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:19:30,178 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 04:19:30,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 04:19:30,178 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:19:30,178 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:19:30,179 INFO L85 PathProgramCache]: Analyzing trace with hash 618880703, now seen corresponding path program 1 times [2023-04-02 04:19:30,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:19:30,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128626666] [2023-04-02 04:19:30,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:19:30,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:19:30,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:30,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:19:30,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:30,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:19:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:30,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:19:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:30,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:19:30,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:30,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:19:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:30,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:19:30,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:30,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:19:30,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:30,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 04:19:30,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:30,439 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 04:19:30,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:19:30,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128626666] [2023-04-02 04:19:30,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128626666] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:19:30,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:19:30,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:19:30,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861855835] [2023-04-02 04:19:30,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:19:30,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:19:30,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:19:30,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:19:30,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:19:30,442 INFO L87 Difference]: Start difference. First operand 143 states and 167 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-02 04:19:31,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:19:31,395 INFO L93 Difference]: Finished difference Result 491 states and 604 transitions. [2023-04-02 04:19:31,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 04:19:31,396 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 57 [2023-04-02 04:19:31,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:19:31,400 INFO L225 Difference]: With dead ends: 491 [2023-04-02 04:19:31,400 INFO L226 Difference]: Without dead ends: 372 [2023-04-02 04:19:31,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 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 04:19:31,402 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 387 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 04:19:31,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 108 Invalid, 1235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 04:19:31,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2023-04-02 04:19:31,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 310. [2023-04-02 04:19:31,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 189 states have (on average 1.2804232804232805) internal successors, (242), 213 states have internal predecessors, (242), 67 states have call successors, (67), 59 states have call predecessors, (67), 53 states have return successors, (64), 51 states have call predecessors, (64), 63 states have call successors, (64) [2023-04-02 04:19:31,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 373 transitions. [2023-04-02 04:19:31,486 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 373 transitions. Word has length 57 [2023-04-02 04:19:31,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:19:31,486 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 373 transitions. [2023-04-02 04:19:31,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-02 04:19:31,487 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 373 transitions. [2023-04-02 04:19:31,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-04-02 04:19:31,488 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:19:31,488 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, 1, 1] [2023-04-02 04:19:31,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 04:19:31,489 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:19:31,489 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:19:31,489 INFO L85 PathProgramCache]: Analyzing trace with hash 171593971, now seen corresponding path program 1 times [2023-04-02 04:19:31,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:19:31,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248235284] [2023-04-02 04:19:31,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:19:31,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:19:31,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:31,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:19:31,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:31,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:19:31,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:31,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:19:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:31,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:19:31,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:31,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:19:31,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:31,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:19:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:31,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:19:31,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:31,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 04:19:31,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:31,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:19:31,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:31,773 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 04:19:31,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:19:31,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248235284] [2023-04-02 04:19:31,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248235284] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:19:31,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:19:31,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:19:31,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692683147] [2023-04-02 04:19:31,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:19:31,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:19:31,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:19:31,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:19:31,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:19:31,775 INFO L87 Difference]: Start difference. First operand 310 states and 373 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 04:19:32,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:19:32,622 INFO L93 Difference]: Finished difference Result 958 states and 1241 transitions. [2023-04-02 04:19:32,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 04:19:32,622 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 63 [2023-04-02 04:19:32,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:19:32,628 INFO L225 Difference]: With dead ends: 958 [2023-04-02 04:19:32,628 INFO L226 Difference]: Without dead ends: 672 [2023-04-02 04:19:32,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-04-02 04:19:32,631 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 280 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 1041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:19:32,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 75 Invalid, 1041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 04:19:32,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2023-04-02 04:19:32,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 601. [2023-04-02 04:19:32,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 366 states have (on average 1.2540983606557377) internal successors, (459), 413 states have internal predecessors, (459), 127 states have call successors, (127), 106 states have call predecessors, (127), 107 states have return successors, (149), 100 states have call predecessors, (149), 123 states have call successors, (149) [2023-04-02 04:19:32,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 735 transitions. [2023-04-02 04:19:32,778 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 735 transitions. Word has length 63 [2023-04-02 04:19:32,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:19:32,779 INFO L495 AbstractCegarLoop]: Abstraction has 601 states and 735 transitions. [2023-04-02 04:19:32,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 04:19:32,779 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 735 transitions. [2023-04-02 04:19:32,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-02 04:19:32,783 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:19:32,783 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, 1, 1, 1, 1, 1, 1] [2023-04-02 04:19:32,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 04:19:32,784 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:19:32,784 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:19:32,784 INFO L85 PathProgramCache]: Analyzing trace with hash 534748921, now seen corresponding path program 1 times [2023-04-02 04:19:32,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:19:32,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148129093] [2023-04-02 04:19:32,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:19:32,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:19:32,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:32,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:19:32,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:32,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:19:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:32,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:19:32,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:32,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:19:32,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:32,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:19:32,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:32,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:19:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:32,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:19:32,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:32,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:19:32,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:33,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:19:33,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:33,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 04:19:33,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:33,005 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 04:19:33,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:19:33,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148129093] [2023-04-02 04:19:33,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148129093] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:19:33,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:19:33,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 04:19:33,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087527998] [2023-04-02 04:19:33,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:19:33,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 04:19:33,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:19:33,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 04:19:33,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 04:19:33,009 INFO L87 Difference]: Start difference. First operand 601 states and 735 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-02 04:19:33,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:19:33,607 INFO L93 Difference]: Finished difference Result 1408 states and 1818 transitions. [2023-04-02 04:19:33,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 04:19:33,608 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 67 [2023-04-02 04:19:33,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:19:33,616 INFO L225 Difference]: With dead ends: 1408 [2023-04-02 04:19:33,616 INFO L226 Difference]: Without dead ends: 831 [2023-04-02 04:19:33,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-04-02 04:19:33,622 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 532 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:19:33,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 59 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [328 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:19:33,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2023-04-02 04:19:33,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 761. [2023-04-02 04:19:33,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 761 states, 473 states have (on average 1.2283298097251585) internal successors, (581), 509 states have internal predecessors, (581), 144 states have call successors, (144), 128 states have call predecessors, (144), 143 states have return successors, (199), 143 states have call predecessors, (199), 140 states have call successors, (199) [2023-04-02 04:19:33,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 924 transitions. [2023-04-02 04:19:33,770 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 924 transitions. Word has length 67 [2023-04-02 04:19:33,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:19:33,770 INFO L495 AbstractCegarLoop]: Abstraction has 761 states and 924 transitions. [2023-04-02 04:19:33,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-02 04:19:33,770 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 924 transitions. [2023-04-02 04:19:33,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-02 04:19:33,773 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:19:33,773 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, 1, 1, 1, 1, 1, 1] [2023-04-02 04:19:33,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 04:19:33,773 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:19:33,773 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:19:33,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1910334407, now seen corresponding path program 1 times [2023-04-02 04:19:33,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:19:33,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827565282] [2023-04-02 04:19:33,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:19:33,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:19:33,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:19:33,796 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-02 04:19:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:19:33,840 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-04-02 04:19:33,841 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-02 04:19:33,842 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 04:19:33,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 04:19:33,847 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-04-02 04:19:33,850 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 04:19:33,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 04:19:33 BoogieIcfgContainer [2023-04-02 04:19:33,916 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 04:19:33,917 INFO L158 Benchmark]: Toolchain (without parser) took 6915.45ms. Allocated memory was 239.1MB in the beginning and 287.3MB in the end (delta: 48.2MB). Free memory was 188.6MB in the beginning and 179.3MB in the end (delta: 9.4MB). Peak memory consumption was 58.4MB. Max. memory is 8.0GB. [2023-04-02 04:19:33,917 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 192.9MB. Free memory is still 141.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 04:19:33,917 INFO L158 Benchmark]: CACSL2BoogieTranslator took 482.81ms. Allocated memory is still 239.1MB. Free memory was 188.4MB in the beginning and 169.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-04-02 04:19:33,919 INFO L158 Benchmark]: Boogie Preprocessor took 60.34ms. Allocated memory is still 239.1MB. Free memory was 169.5MB in the beginning and 165.8MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-02 04:19:33,919 INFO L158 Benchmark]: RCFGBuilder took 837.99ms. Allocated memory is still 239.1MB. Free memory was 165.8MB in the beginning and 193.3MB in the end (delta: -27.5MB). Peak memory consumption was 38.0MB. Max. memory is 8.0GB. [2023-04-02 04:19:33,920 INFO L158 Benchmark]: TraceAbstraction took 5528.42ms. Allocated memory was 239.1MB in the beginning and 287.3MB in the end (delta: 48.2MB). Free memory was 192.3MB in the beginning and 179.3MB in the end (delta: 13.0MB). Peak memory consumption was 61.3MB. Max. memory is 8.0GB. [2023-04-02 04:19:33,921 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 192.9MB. Free memory is still 141.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 482.81ms. Allocated memory is still 239.1MB. Free memory was 188.4MB in the beginning and 169.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 60.34ms. Allocated memory is still 239.1MB. Free memory was 169.5MB in the beginning and 165.8MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 837.99ms. Allocated memory is still 239.1MB. Free memory was 165.8MB in the beginning and 193.3MB in the end (delta: -27.5MB). Peak memory consumption was 38.0MB. Max. memory is 8.0GB. * TraceAbstraction took 5528.42ms. Allocated memory was 239.1MB in the beginning and 287.3MB in the end (delta: 48.2MB). Free memory was 192.3MB in the beginning and 179.3MB in the end (delta: 13.0MB). Peak memory consumption was 61.3MB. 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: 704]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L424] int waterLevel = 1; [L425] int methaneLevelCritical = 0; [L527] int cleanupTimeShifts = 4; [L779] int pumpRunning = 0; [L780] int systemActive = 1; 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] [L606] int retValue_acc ; [L607] 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] [L611] 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] [L612] 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] [L613] 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] [L655] int retValue_acc ; [L658] retValue_acc = 1 [L659] 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] [L613] 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] [L613] tmp = valid_product() [L615] 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] [L617] 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] [L618] 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] [L597] 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] [L711] int splverifierCounter ; [L712] int tmp ; [L713] int tmp___0 ; [L714] int tmp___1 ; [L715] int tmp___2 ; [L718] 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] [L720] 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] [L722] 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] [L728] tmp = __VERIFIER_nondet_int() [L730] 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] [L732] 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] [L442] COND TRUE waterLevel < 2 [L443] 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] [L732] 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] [L738] tmp___0 = __VERIFIER_nondet_int() [L740] 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] [L748] tmp___2 = __VERIFIER_nondet_int() [L750] COND FALSE !(\read(tmp___2)) [L754] tmp___1 = __VERIFIER_nondet_int() [L756] COND TRUE \read(tmp___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, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L758] CALL stopSystem() 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] [L997] COND FALSE !(\read(pumpRunning)) 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] [L1004] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L758] RET stopSystem() 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=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L765] 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=0, waterLevel=2] [L786] 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=0, waterLevel=2] [L793] COND FALSE !(\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=0, waterLevel=2] [L801] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L667] int tmp ; [L668] int tmp___0 ; [L669] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L673] 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=0, waterLevel=2] [L463] int retValue_acc ; [L466] retValue_acc = methaneLevelCritical [L467] 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=0, waterLevel=2] [L673] 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=0, waterLevel=2] [L673] tmp = isMethaneLevelCritical() [L675] 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=0, tmp=0, waterLevel=2] [L679] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L495] int retValue_acc ; [L498] retValue_acc = waterLevel [L499] 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=0, retValue_acc=2, systemActive=0, waterLevel=2] [L679] 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=0, systemActive=0, tmp=0, waterLevel=2] [L679] tmp___0 = getWaterLevel() [L681] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L683] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L911] int retValue_acc ; [L914] retValue_acc = pumpRunning [L915] 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=0, waterLevel=2] [L683] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L683] tmp___1 = isPumpRunning() [L685] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L689] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L704] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1514 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1435 mSDsluCounter, 296 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 231 mSDsCounter, 733 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2890 IncrementalHoareTripleChecker+Invalid, 3623 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 733 mSolverCounterUnsat, 65 mSDtfsCounter, 2890 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=761occurred in iteration=5, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 268 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 359 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 287 ConstructedInterpolants, 0 QuantifiedInterpolants, 635 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-04-02 04:19:33,943 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...