/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_spec1_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 04:05:33,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 04:05:33,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 04:05:33,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 04:05:33,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 04:05:33,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 04:05:33,504 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 04:05:33,506 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 04:05:33,507 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 04:05:33,511 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 04:05:33,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 04:05:33,513 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 04:05:33,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 04:05:33,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 04:05:33,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 04:05:33,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 04:05:33,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 04:05:33,519 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 04:05:33,522 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 04:05:33,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 04:05:33,524 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 04:05:33,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 04:05:33,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 04:05:33,527 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 04:05:33,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 04:05:33,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 04:05:33,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 04:05:33,530 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 04:05:33,530 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 04:05:33,530 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 04:05:33,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 04:05:33,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 04:05:33,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 04:05:33,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 04:05:33,532 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 04:05:33,532 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 04:05:33,533 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 04:05:33,533 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 04:05:33,533 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 04:05:33,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 04:05:33,534 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 04:05:33,538 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 04:05:33,557 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 04:05:33,557 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 04:05:33,557 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 04:05:33,557 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 04:05:33,558 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 04:05:33,558 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 04:05:33,559 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 04:05:33,559 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 04:05:33,559 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 04:05:33,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 04:05:33,560 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 04:05:33,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 04:05:33,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 04:05:33,560 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 04:05:33,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 04:05:33,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 04:05:33,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 04:05:33,560 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 04:05:33,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 04:05:33,560 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 04:05:33,560 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 04:05:33,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 04:05:33,561 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 04:05:33,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 04:05:33,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:05:33,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 04:05:33,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 04:05:33,561 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 04:05:33,561 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 04:05:33,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 04:05:33,561 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 04:05:33,562 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 04:05:33,562 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 04:05:33,562 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 04:05:33,562 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 04:05:33,562 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 04:05:33,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 04:05:33,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 04:05:33,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 04:05:33,781 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 04:05:33,783 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 04:05:33,783 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c [2023-04-02 04:05:34,933 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 04:05:35,171 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 04:05:35,171 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c [2023-04-02 04:05:35,179 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d3654a43/c5d24b3fd98d4c7ea5559b718471420f/FLAGf51975e34 [2023-04-02 04:05:35,195 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d3654a43/c5d24b3fd98d4c7ea5559b718471420f [2023-04-02 04:05:35,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 04:05:35,198 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 04:05:35,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 04:05:35,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 04:05:35,203 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 04:05:35,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:05:35" (1/1) ... [2023-04-02 04:05:35,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@614232b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:05:35, skipping insertion in model container [2023-04-02 04:05:35,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:05:35" (1/1) ... [2023-04-02 04:05:35,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 04:05:35,242 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 04:05:35,376 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_spec1_product50.cil.c[6254,6267] [2023-04-02 04:05:35,445 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:05:35,460 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 04:05:35,487 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_spec1_product50.cil.c[6254,6267] [2023-04-02 04:05:35,521 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:05:35,534 INFO L208 MainTranslator]: Completed translation [2023-04-02 04:05:35,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:05:35 WrapperNode [2023-04-02 04:05:35,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 04:05:35,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 04:05:35,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 04:05:35,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 04:05:35,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:05:35" (1/1) ... [2023-04-02 04:05:35,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:05:35" (1/1) ... [2023-04-02 04:05:35,565 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:05:35" (1/1) ... [2023-04-02 04:05:35,565 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:05:35" (1/1) ... [2023-04-02 04:05:35,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:05:35" (1/1) ... [2023-04-02 04:05:35,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:05:35" (1/1) ... [2023-04-02 04:05:35,596 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:05:35" (1/1) ... [2023-04-02 04:05:35,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:05:35" (1/1) ... [2023-04-02 04:05:35,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 04:05:35,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 04:05:35,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 04:05:35,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 04:05:35,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:05:35" (1/1) ... [2023-04-02 04:05:35,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:05:35,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:05:35,628 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 04:05:35,630 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 04:05:35,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 04:05:35,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 04:05:35,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 04:05:35,661 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 04:05:35,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2023-04-02 04:05:35,662 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-02 04:05:35,662 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-02 04:05:35,662 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-02 04:05:35,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-02 04:05:35,663 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-02 04:05:35,666 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-02 04:05:35,666 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-02 04:05:35,666 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-04-02 04:05:35,666 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 04:05:35,666 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 04:05:35,666 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 04:05:35,667 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 04:05:35,667 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 04:05:35,667 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 04:05:35,667 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 04:05:35,667 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 04:05:35,667 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 04:05:35,667 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 04:05:35,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 04:05:35,667 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 04:05:35,667 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-02 04:05:35,668 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-04-02 04:05:35,668 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-02 04:05:35,668 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-02 04:05:35,668 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-02 04:05:35,668 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-02 04:05:35,668 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-02 04:05:35,668 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-02 04:05:35,668 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-02 04:05:35,668 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-04-02 04:05:35,668 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-04-02 04:05:35,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 04:05:35,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 04:05:35,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 04:05:35,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 04:05:35,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 04:05:35,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 04:05:35,669 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 04:05:35,669 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 04:05:35,669 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 04:05:35,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 04:05:35,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 04:05:35,669 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 04:05:35,669 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 04:05:35,669 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-02 04:05:35,670 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-02 04:05:35,670 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2023-04-02 04:05:35,670 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-02 04:05:35,670 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-02 04:05:35,671 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-02 04:05:35,671 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-02 04:05:35,671 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-02 04:05:35,671 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-02 04:05:35,671 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-04-02 04:05:35,671 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 04:05:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 04:05:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-02 04:05:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 04:05:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 04:05:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 04:05:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 04:05:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 04:05:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 04:05:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 04:05:35,673 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 04:05:35,673 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 04:05:35,673 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-04-02 04:05:35,673 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-02 04:05:35,673 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-02 04:05:35,673 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-02 04:05:35,673 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-02 04:05:35,673 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-02 04:05:35,674 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-04-02 04:05:35,674 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-04-02 04:05:35,674 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-02 04:05:35,674 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 04:05:35,674 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 04:05:35,674 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 04:05:35,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 04:05:35,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 04:05:35,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 04:05:35,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 04:05:35,674 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 04:05:35,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 04:05:35,675 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 04:05:35,675 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 04:05:35,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 04:05:35,676 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 04:05:35,676 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 04:05:35,676 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 04:05:35,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 04:05:35,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 04:05:35,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 04:05:35,852 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 04:05:35,854 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 04:05:36,338 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 04:05:36,344 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 04:05:36,344 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-02 04:05:36,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:05:36 BoogieIcfgContainer [2023-04-02 04:05:36,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 04:05:36,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 04:05:36,347 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 04:05:36,349 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 04:05:36,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 04:05:35" (1/3) ... [2023-04-02 04:05:36,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@697da25c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:05:36, skipping insertion in model container [2023-04-02 04:05:36,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:05:35" (2/3) ... [2023-04-02 04:05:36,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@697da25c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:05:36, skipping insertion in model container [2023-04-02 04:05:36,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:05:36" (3/3) ... [2023-04-02 04:05:36,351 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product50.cil.c [2023-04-02 04:05:36,362 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 04:05:36,362 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 04:05:36,396 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 04:05:36,401 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;@355cda3e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 04:05:36,401 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 04:05:36,406 INFO L276 IsEmpty]: Start isEmpty. Operand has 178 states, 99 states have (on average 1.292929292929293) internal successors, (128), 112 states have internal predecessors, (128), 46 states have call successors, (46), 29 states have call predecessors, (46), 29 states have return successors, (46), 42 states have call predecessors, (46), 46 states have call successors, (46) [2023-04-02 04:05:36,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-04-02 04:05:36,413 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:05:36,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:05:36,413 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:05:36,418 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:05:36,418 INFO L85 PathProgramCache]: Analyzing trace with hash -22235791, now seen corresponding path program 1 times [2023-04-02 04:05:36,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:05:36,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164003513] [2023-04-02 04:05:36,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:05:36,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:05:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:36,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:05:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:36,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:05:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:36,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:05:36,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:36,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:05:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:36,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:05:36,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:36,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:05:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:36,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:05:36,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:36,661 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 04:05:36,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:05:36,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164003513] [2023-04-02 04:05:36,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164003513] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:05:36,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:05:36,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 04:05:36,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330292520] [2023-04-02 04:05:36,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:05:36,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 04:05:36,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:05:36,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 04:05:36,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 04:05:36,688 INFO L87 Difference]: Start difference. First operand has 178 states, 99 states have (on average 1.292929292929293) internal successors, (128), 112 states have internal predecessors, (128), 46 states have call successors, (46), 29 states have call predecessors, (46), 29 states have return successors, (46), 42 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 04:05:37,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:05:37,115 INFO L93 Difference]: Finished difference Result 306 states and 398 transitions. [2023-04-02 04:05:37,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 04:05:37,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 46 [2023-04-02 04:05:37,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:05:37,132 INFO L225 Difference]: With dead ends: 306 [2023-04-02 04:05:37,132 INFO L226 Difference]: Without dead ends: 165 [2023-04-02 04:05:37,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 04:05:37,139 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 96 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:05:37,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 22 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:05:37,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-04-02 04:05:37,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 132. [2023-04-02 04:05:37,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 78 states have (on average 1.2435897435897436) internal successors, (97), 88 states have internal predecessors, (97), 31 states have call successors, (31), 27 states have call predecessors, (31), 22 states have return successors, (26), 22 states have call predecessors, (26), 26 states have call successors, (26) [2023-04-02 04:05:37,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 154 transitions. [2023-04-02 04:05:37,182 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 154 transitions. Word has length 46 [2023-04-02 04:05:37,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:05:37,183 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 154 transitions. [2023-04-02 04:05:37,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 04:05:37,184 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 154 transitions. [2023-04-02 04:05:37,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-04-02 04:05:37,187 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:05:37,188 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:05:37,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 04:05:37,188 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:05:37,189 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:05:37,189 INFO L85 PathProgramCache]: Analyzing trace with hash 74473584, now seen corresponding path program 1 times [2023-04-02 04:05:37,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:05:37,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448048913] [2023-04-02 04:05:37,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:05:37,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:05:37,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:37,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:05:37,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:37,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:05:37,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:37,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:05:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:37,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:05:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:37,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:05:37,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:37,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:05:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:37,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 04:05:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:37,342 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 04:05:37,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:05:37,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448048913] [2023-04-02 04:05:37,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448048913] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:05:37,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:05:37,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 04:05:37,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329260641] [2023-04-02 04:05:37,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:05:37,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 04:05:37,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:05:37,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 04:05:37,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 04:05:37,344 INFO L87 Difference]: Start difference. First operand 132 states and 154 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 04:05:37,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:05:37,705 INFO L93 Difference]: Finished difference Result 235 states and 285 transitions. [2023-04-02 04:05:37,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 04:05:37,706 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 47 [2023-04-02 04:05:37,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:05:37,707 INFO L225 Difference]: With dead ends: 235 [2023-04-02 04:05:37,707 INFO L226 Difference]: Without dead ends: 149 [2023-04-02 04:05:37,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 04:05:37,708 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 106 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:05:37,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 30 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:05:37,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-04-02 04:05:37,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 123. [2023-04-02 04:05:37,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 72 states have (on average 1.25) internal successors, (90), 82 states have internal predecessors, (90), 28 states have call successors, (28), 26 states have call predecessors, (28), 22 states have return successors, (24), 20 states have call predecessors, (24), 24 states have call successors, (24) [2023-04-02 04:05:37,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 142 transitions. [2023-04-02 04:05:37,727 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 142 transitions. Word has length 47 [2023-04-02 04:05:37,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:05:37,727 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 142 transitions. [2023-04-02 04:05:37,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 04:05:37,727 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 142 transitions. [2023-04-02 04:05:37,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-04-02 04:05:37,728 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:05:37,728 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 04:05:37,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 04:05:37,728 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:05:37,729 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:05:37,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1572999815, now seen corresponding path program 1 times [2023-04-02 04:05:37,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:05:37,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788410396] [2023-04-02 04:05:37,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:05:37,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:05:37,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:37,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:05:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:37,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:05:37,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:37,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:05:37,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:37,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:05:37,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:37,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:05:37,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:37,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:05:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:37,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:05:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:37,931 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 04:05:37,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:05:37,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788410396] [2023-04-02 04:05:37,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788410396] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:05:37,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:05:37,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:05:37,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391588474] [2023-04-02 04:05:37,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:05:37,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:05:37,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:05:37,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:05:37,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:05:37,933 INFO L87 Difference]: Start difference. First operand 123 states and 142 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-02 04:05:38,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:05:38,397 INFO L93 Difference]: Finished difference Result 248 states and 303 transitions. [2023-04-02 04:05:38,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 04:05:38,398 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 52 [2023-04-02 04:05:38,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:05:38,399 INFO L225 Difference]: With dead ends: 248 [2023-04-02 04:05:38,399 INFO L226 Difference]: Without dead ends: 149 [2023-04-02 04:05:38,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-04-02 04:05:38,401 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 199 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:05:38,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 37 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:05:38,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-04-02 04:05:38,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 123. [2023-04-02 04:05:38,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 72 states have (on average 1.2361111111111112) internal successors, (89), 81 states have internal predecessors, (89), 28 states have call successors, (28), 26 states have call predecessors, (28), 22 states have return successors, (24), 20 states have call predecessors, (24), 24 states have call successors, (24) [2023-04-02 04:05:38,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 141 transitions. [2023-04-02 04:05:38,418 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 141 transitions. Word has length 52 [2023-04-02 04:05:38,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:05:38,418 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 141 transitions. [2023-04-02 04:05:38,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-02 04:05:38,419 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 141 transitions. [2023-04-02 04:05:38,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-04-02 04:05:38,420 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:05:38,420 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] [2023-04-02 04:05:38,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 04:05:38,420 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:05:38,420 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:05:38,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1789568379, now seen corresponding path program 1 times [2023-04-02 04:05:38,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:05:38,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353921179] [2023-04-02 04:05:38,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:05:38,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:05:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:38,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:05:38,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:38,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:05:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:38,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:05:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:38,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:05:38,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:38,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:05:38,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:38,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 04:05:38,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:38,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:05:38,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:38,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:05:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:38,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 04:05:38,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:38,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 04:05:38,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:38,540 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 04:05:38,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:05:38,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353921179] [2023-04-02 04:05:38,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353921179] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:05:38,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:05:38,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 04:05:38,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470770166] [2023-04-02 04:05:38,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:05:38,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 04:05:38,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:05:38,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 04:05:38,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-04-02 04:05:38,542 INFO L87 Difference]: Start difference. First operand 123 states and 141 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 4 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-04-02 04:05:38,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:05:38,997 INFO L93 Difference]: Finished difference Result 345 states and 425 transitions. [2023-04-02 04:05:38,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 04:05:38,998 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 4 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) Word has length 65 [2023-04-02 04:05:38,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:05:38,999 INFO L225 Difference]: With dead ends: 345 [2023-04-02 04:05:38,999 INFO L226 Difference]: Without dead ends: 246 [2023-04-02 04:05:39,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-04-02 04:05:39,001 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 235 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:05:39,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 84 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:05:39,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2023-04-02 04:05:39,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 203. [2023-04-02 04:05:39,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 122 states have (on average 1.2049180327868851) internal successors, (147), 131 states have internal predecessors, (147), 40 states have call successors, (40), 39 states have call predecessors, (40), 40 states have return successors, (43), 39 states have call predecessors, (43), 36 states have call successors, (43) [2023-04-02 04:05:39,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 230 transitions. [2023-04-02 04:05:39,024 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 230 transitions. Word has length 65 [2023-04-02 04:05:39,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:05:39,024 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 230 transitions. [2023-04-02 04:05:39,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 4 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-04-02 04:05:39,024 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 230 transitions. [2023-04-02 04:05:39,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-04-02 04:05:39,025 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:05:39,025 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:05:39,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 04:05:39,026 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:05:39,026 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:05:39,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1254702648, now seen corresponding path program 1 times [2023-04-02 04:05:39,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:05:39,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81192009] [2023-04-02 04:05:39,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:05:39,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:05:39,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:39,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:05:39,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:39,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:05:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:39,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:05:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:39,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:05:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:39,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:05:39,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:39,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 04:05:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:39,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:05:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:39,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:05:39,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:39,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:05:39,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:39,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:05:39,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:39,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 04:05:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:39,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-04-02 04:05:39,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:39,168 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 04:05:39,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:05:39,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81192009] [2023-04-02 04:05:39,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81192009] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:05:39,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:05:39,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:05:39,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962279403] [2023-04-02 04:05:39,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:05:39,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:05:39,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:05:39,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:05:39,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:05:39,170 INFO L87 Difference]: Start difference. First operand 203 states and 230 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2023-04-02 04:05:39,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:05:39,967 INFO L93 Difference]: Finished difference Result 607 states and 746 transitions. [2023-04-02 04:05:39,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-02 04:05:39,967 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) Word has length 79 [2023-04-02 04:05:39,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:05:39,970 INFO L225 Difference]: With dead ends: 607 [2023-04-02 04:05:39,971 INFO L226 Difference]: Without dead ends: 428 [2023-04-02 04:05:39,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2023-04-02 04:05:39,972 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 369 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:05:39,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 65 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 04:05:39,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2023-04-02 04:05:40,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 361. [2023-04-02 04:05:40,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 220 states have (on average 1.190909090909091) internal successors, (262), 237 states have internal predecessors, (262), 68 states have call successors, (68), 66 states have call predecessors, (68), 72 states have return successors, (80), 70 states have call predecessors, (80), 64 states have call successors, (80) [2023-04-02 04:05:40,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 410 transitions. [2023-04-02 04:05:40,018 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 410 transitions. Word has length 79 [2023-04-02 04:05:40,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:05:40,018 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 410 transitions. [2023-04-02 04:05:40,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2023-04-02 04:05:40,019 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 410 transitions. [2023-04-02 04:05:40,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-04-02 04:05:40,020 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:05:40,020 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:05:40,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 04:05:40,020 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:05:40,020 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:05:40,020 INFO L85 PathProgramCache]: Analyzing trace with hash 312974268, now seen corresponding path program 1 times [2023-04-02 04:05:40,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:05:40,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734767369] [2023-04-02 04:05:40,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:05:40,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:05:40,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:40,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:05:40,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:40,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:05:40,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:40,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:05:40,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:40,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:05:40,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:40,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:05:40,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:40,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 04:05:40,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:40,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:05:40,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:40,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:05:40,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:40,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:05:40,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:40,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:05:40,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:40,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:05:40,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:40,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 04:05:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:40,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 04:05:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:40,165 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 04:05:40,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:05:40,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734767369] [2023-04-02 04:05:40,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734767369] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:05:40,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:05:40,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:05:40,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700418113] [2023-04-02 04:05:40,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:05:40,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:05:40,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:05:40,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:05:40,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:05:40,167 INFO L87 Difference]: Start difference. First operand 361 states and 410 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2023-04-02 04:05:40,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:05:40,806 INFO L93 Difference]: Finished difference Result 470 states and 590 transitions. [2023-04-02 04:05:40,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 04:05:40,806 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 83 [2023-04-02 04:05:40,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:05:40,808 INFO L225 Difference]: With dead ends: 470 [2023-04-02 04:05:40,808 INFO L226 Difference]: Without dead ends: 467 [2023-04-02 04:05:40,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2023-04-02 04:05:40,809 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 416 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:05:40,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 90 Invalid, 972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:05:40,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2023-04-02 04:05:40,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 361. [2023-04-02 04:05:40,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 220 states have (on average 1.1863636363636363) internal successors, (261), 237 states have internal predecessors, (261), 68 states have call successors, (68), 66 states have call predecessors, (68), 72 states have return successors, (80), 70 states have call predecessors, (80), 64 states have call successors, (80) [2023-04-02 04:05:40,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 409 transitions. [2023-04-02 04:05:40,837 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 409 transitions. Word has length 83 [2023-04-02 04:05:40,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:05:40,837 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 409 transitions. [2023-04-02 04:05:40,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2023-04-02 04:05:40,837 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 409 transitions. [2023-04-02 04:05:40,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-04-02 04:05:40,838 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:05:40,838 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:05:40,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 04:05:40,838 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:05:40,838 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:05:40,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1804130119, now seen corresponding path program 1 times [2023-04-02 04:05:40,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:05:40,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622868361] [2023-04-02 04:05:40,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:05:40,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:05:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:40,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:05:40,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:40,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:05:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:40,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:05:40,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:40,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:05:40,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:40,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:05:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:40,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 04:05:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:40,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:05:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:40,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:05:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:40,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:05:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:40,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:05:40,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:40,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:05:40,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:40,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 04:05:40,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:40,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 04:05:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:40,956 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 04:05:40,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:05:40,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622868361] [2023-04-02 04:05:40,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622868361] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:05:40,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:05:40,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:05:40,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992651854] [2023-04-02 04:05:40,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:05:40,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:05:40,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:05:40,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:05:40,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:05:40,957 INFO L87 Difference]: Start difference. First operand 361 states and 409 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2023-04-02 04:05:41,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:05:41,496 INFO L93 Difference]: Finished difference Result 808 states and 990 transitions. [2023-04-02 04:05:41,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 04:05:41,497 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 84 [2023-04-02 04:05:41,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:05:41,499 INFO L225 Difference]: With dead ends: 808 [2023-04-02 04:05:41,499 INFO L226 Difference]: Without dead ends: 471 [2023-04-02 04:05:41,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-04-02 04:05:41,500 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 231 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:05:41,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 55 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:05:41,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2023-04-02 04:05:41,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 371. [2023-04-02 04:05:41,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 228 states have (on average 1.1798245614035088) internal successors, (269), 245 states have internal predecessors, (269), 68 states have call successors, (68), 66 states have call predecessors, (68), 74 states have return successors, (82), 72 states have call predecessors, (82), 64 states have call successors, (82) [2023-04-02 04:05:41,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 419 transitions. [2023-04-02 04:05:41,525 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 419 transitions. Word has length 84 [2023-04-02 04:05:41,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:05:41,525 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 419 transitions. [2023-04-02 04:05:41,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2023-04-02 04:05:41,525 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 419 transitions. [2023-04-02 04:05:41,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-04-02 04:05:41,526 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:05:41,526 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:05:41,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 04:05:41,526 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:05:41,526 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:05:41,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1826762373, now seen corresponding path program 1 times [2023-04-02 04:05:41,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:05:41,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546670600] [2023-04-02 04:05:41,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:05:41,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:05:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:41,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:05:41,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:41,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:05:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:41,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:05:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:41,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:05:41,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:41,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:05:41,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:41,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 04:05:41,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:41,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:05:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:41,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:05:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:41,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:05:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:41,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:05:41,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:41,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:05:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:41,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 04:05:41,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:41,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 04:05:41,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:41,711 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 04:05:41,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:05:41,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546670600] [2023-04-02 04:05:41,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546670600] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:05:41,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:05:41,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 04:05:41,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523350852] [2023-04-02 04:05:41,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:05:41,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 04:05:41,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:05:41,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 04:05:41,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-04-02 04:05:41,713 INFO L87 Difference]: Start difference. First operand 371 states and 419 transitions. Second operand has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (13), 4 states have call predecessors, (13), 2 states have call successors, (13) [2023-04-02 04:05:42,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:05:42,403 INFO L93 Difference]: Finished difference Result 832 states and 1030 transitions. [2023-04-02 04:05:42,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-02 04:05:42,404 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (13), 4 states have call predecessors, (13), 2 states have call successors, (13) Word has length 84 [2023-04-02 04:05:42,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:05:42,405 INFO L225 Difference]: With dead ends: 832 [2023-04-02 04:05:42,405 INFO L226 Difference]: Without dead ends: 485 [2023-04-02 04:05:42,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2023-04-02 04:05:42,407 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 311 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 1207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:05:42,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 65 Invalid, 1207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 1029 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:05:42,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2023-04-02 04:05:42,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 379. [2023-04-02 04:05:42,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 234 states have (on average 1.1752136752136753) internal successors, (275), 251 states have internal predecessors, (275), 68 states have call successors, (68), 66 states have call predecessors, (68), 76 states have return successors, (84), 74 states have call predecessors, (84), 64 states have call successors, (84) [2023-04-02 04:05:42,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 427 transitions. [2023-04-02 04:05:42,445 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 427 transitions. Word has length 84 [2023-04-02 04:05:42,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:05:42,445 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 427 transitions. [2023-04-02 04:05:42,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (13), 4 states have call predecessors, (13), 2 states have call successors, (13) [2023-04-02 04:05:42,446 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 427 transitions. [2023-04-02 04:05:42,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-04-02 04:05:42,446 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:05:42,446 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:05:42,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 04:05:42,447 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:05:42,447 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:05:42,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1442712924, now seen corresponding path program 1 times [2023-04-02 04:05:42,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:05:42,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984798829] [2023-04-02 04:05:42,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:05:42,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:05:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:42,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:05:42,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:42,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:05:42,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:42,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:05:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:42,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:05:42,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:42,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:05:42,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:42,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 04:05:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:42,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:05:42,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:42,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:05:42,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:42,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:05:42,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:42,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:05:42,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:42,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:05:42,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:42,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 04:05:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:42,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 04:05:42,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:42,563 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 04:05:42,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:05:42,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984798829] [2023-04-02 04:05:42,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984798829] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:05:42,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:05:42,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 04:05:42,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067461690] [2023-04-02 04:05:42,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:05:42,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 04:05:42,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:05:42,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 04:05:42,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-04-02 04:05:42,565 INFO L87 Difference]: Start difference. First operand 379 states and 427 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-04-02 04:05:43,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:05:43,166 INFO L93 Difference]: Finished difference Result 1174 states and 1504 transitions. [2023-04-02 04:05:43,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-02 04:05:43,166 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 84 [2023-04-02 04:05:43,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:05:43,169 INFO L225 Difference]: With dead ends: 1174 [2023-04-02 04:05:43,169 INFO L226 Difference]: Without dead ends: 819 [2023-04-02 04:05:43,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2023-04-02 04:05:43,171 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 411 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:05:43,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 82 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:05:43,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2023-04-02 04:05:43,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 699. [2023-04-02 04:05:43,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 440 states have (on average 1.1636363636363636) internal successors, (512), 475 states have internal predecessors, (512), 128 states have call successors, (128), 122 states have call predecessors, (128), 130 states have return successors, (181), 130 states have call predecessors, (181), 124 states have call successors, (181) [2023-04-02 04:05:43,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 821 transitions. [2023-04-02 04:05:43,225 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 821 transitions. Word has length 84 [2023-04-02 04:05:43,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:05:43,226 INFO L495 AbstractCegarLoop]: Abstraction has 699 states and 821 transitions. [2023-04-02 04:05:43,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-04-02 04:05:43,226 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 821 transitions. [2023-04-02 04:05:43,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-04-02 04:05:43,229 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:05:43,229 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:05:43,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 04:05:43,229 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:05:43,229 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:05:43,229 INFO L85 PathProgramCache]: Analyzing trace with hash 988363454, now seen corresponding path program 1 times [2023-04-02 04:05:43,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:05:43,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420164643] [2023-04-02 04:05:43,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:05:43,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:05:43,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:05:43,242 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-02 04:05:43,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:05:43,287 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-04-02 04:05:43,288 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-02 04:05:43,288 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 04:05:43,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 04:05:43,291 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:05:43,294 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 04:05:43,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 04:05:43 BoogieIcfgContainer [2023-04-02 04:05:43,345 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 04:05:43,346 INFO L158 Benchmark]: Toolchain (without parser) took 8147.80ms. Allocated memory was 254.8MB in the beginning and 371.2MB in the end (delta: 116.4MB). Free memory was 214.7MB in the beginning and 252.3MB in the end (delta: -37.5MB). Peak memory consumption was 80.4MB. Max. memory is 8.0GB. [2023-04-02 04:05:43,346 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 168.8MB. Free memory is still 117.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 04:05:43,346 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.42ms. Allocated memory is still 254.8MB. Free memory was 214.7MB in the beginning and 195.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-04-02 04:05:43,346 INFO L158 Benchmark]: Boogie Preprocessor took 65.19ms. Allocated memory is still 254.8MB. Free memory was 195.8MB in the beginning and 192.7MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-02 04:05:43,346 INFO L158 Benchmark]: RCFGBuilder took 744.43ms. Allocated memory is still 254.8MB. Free memory was 192.7MB in the beginning and 152.8MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 8.0GB. [2023-04-02 04:05:43,346 INFO L158 Benchmark]: TraceAbstraction took 6998.19ms. Allocated memory was 254.8MB in the beginning and 371.2MB in the end (delta: 116.4MB). Free memory was 152.3MB in the beginning and 252.3MB in the end (delta: -99.9MB). Peak memory consumption was 17.5MB. Max. memory is 8.0GB. [2023-04-02 04:05:43,347 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 168.8MB. Free memory is still 117.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 334.42ms. Allocated memory is still 254.8MB. Free memory was 214.7MB in the beginning and 195.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 65.19ms. Allocated memory is still 254.8MB. Free memory was 195.8MB in the beginning and 192.7MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 744.43ms. Allocated memory is still 254.8MB. Free memory was 192.7MB in the beginning and 152.8MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 8.0GB. * TraceAbstraction took 6998.19ms. Allocated memory was 254.8MB in the beginning and 371.2MB in the end (delta: 116.4MB). Free memory was 152.3MB in the beginning and 252.3MB in the end (delta: -99.9MB). Peak memory consumption was 17.5MB. 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: 398]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L86] int waterLevel = 1; [L87] int methaneLevelCritical = 0; [L189] int cleanupTimeShifts = 4; [L405] int pumpRunning = 0; [L406] int systemActive = 1; [L779] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=55, \old(head)={49:54}, \old(methaneLevelCritical)=53, \old(pumpRunning)=57, \old(systemActive)=52, \old(waterLevel)=51, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L268] int retValue_acc ; [L269] 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] [L273] 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] [L274] 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] [L275] 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] [L317] int retValue_acc ; [L320] retValue_acc = 1 [L321] 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] [L275] 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] [L275] tmp = valid_product() [L277] 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] [L279] 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] [L280] 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] [L259] 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] [L328] int splverifierCounter ; [L329] int tmp ; [L330] int tmp___0 ; [L331] int tmp___1 ; [L332] int tmp___2 ; [L335] 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] [L337] 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] [L339] 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] [L345] tmp = __VERIFIER_nondet_int() [L347] 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] [L349] 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] [L104] COND TRUE waterLevel < 2 [L105] 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] [L349] 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] [L355] tmp___0 = __VERIFIER_nondet_int() [L357] COND TRUE \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=-2, waterLevel=2] [L359] CALL changeMethaneLevel() 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] [L116] COND FALSE !(\read(methaneLevelCritical)) [L119] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L359] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=-2, waterLevel=2] [L365] tmp___2 = __VERIFIER_nondet_int() [L367] COND FALSE !(\read(tmp___2)) [L373] tmp___1 = __VERIFIER_nondet_int() [L375] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=-2, tmp___1=1, tmp___2=0, waterLevel=2] [L382] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L412] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L419] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L421] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L467] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L470] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L485] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L441] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L444] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L446] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L564] int retValue_acc ; [L565] int tmp ; [L566] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L570] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L166] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L169] COND FALSE !(waterLevel < 2) [L173] retValue_acc = 0 [L174] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L570] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L570] tmp = isHighWaterSensorDry() [L572] COND FALSE !(\read(tmp)) [L575] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L577] retValue_acc = tmp___0 [L578] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L446] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L446] tmp = isHighWaterLevel() [L448] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L450] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L495] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L450] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L485] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L421] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L427] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L54] int tmp ; [L55] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L59] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L125] int retValue_acc ; [L128] retValue_acc = methaneLevelCritical [L129] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L59] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L59] tmp = isMethaneLevelCritical() [L61] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L63] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L519] int retValue_acc ; [L522] retValue_acc = pumpRunning [L523] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L63] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L63] tmp___0 = isPumpRunning() [L65] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L67] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L398] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 242 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.9s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2508 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2374 mSDsluCounter, 530 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 422 mSDsCounter, 1298 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5369 IncrementalHoareTripleChecker+Invalid, 6667 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1298 mSolverCounterUnsat, 108 mSDtfsCounter, 5369 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 320 GetRequests, 223 SyntacticMatches, 3 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=699occurred in iteration=9, InterpolantAutomatonStates: 91, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 627 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 712 NumberOfCodeBlocks, 712 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 615 ConstructedInterpolants, 0 QuantifiedInterpolants, 1327 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 04:05:43,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...