/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_spec2_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 04:09:12,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 04:09:12,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 04:09:12,796 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 04:09:12,797 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 04:09:12,798 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 04:09:12,799 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 04:09:12,800 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 04:09:12,802 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 04:09:12,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 04:09:12,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 04:09:12,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 04:09:12,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 04:09:12,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 04:09:12,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 04:09:12,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 04:09:12,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 04:09:12,809 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 04:09:12,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 04:09:12,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 04:09:12,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 04:09:12,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 04:09:12,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 04:09:12,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 04:09:12,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 04:09:12,819 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 04:09:12,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 04:09:12,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 04:09:12,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 04:09:12,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 04:09:12,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 04:09:12,822 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 04:09:12,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 04:09:12,823 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 04:09:12,824 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 04:09:12,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 04:09:12,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 04:09:12,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 04:09:12,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 04:09:12,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 04:09:12,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 04:09:12,828 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 04:09:12,846 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 04:09:12,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 04:09:12,846 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 04:09:12,847 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 04:09:12,847 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 04:09:12,847 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 04:09:12,848 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 04:09:12,848 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 04:09:12,848 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 04:09:12,849 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 04:09:12,849 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 04:09:12,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 04:09:12,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 04:09:12,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 04:09:12,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 04:09:12,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 04:09:12,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 04:09:12,850 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 04:09:12,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 04:09:12,850 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 04:09:12,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 04:09:12,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 04:09:12,851 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 04:09:12,851 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 04:09:12,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:09:12,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 04:09:12,852 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 04:09:12,852 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 04:09:12,852 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 04:09:12,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 04:09:12,852 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 04:09:12,853 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 04:09:12,853 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 04:09:12,853 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 04:09:12,853 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 04:09:12,853 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 04:09:13,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 04:09:13,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 04:09:13,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 04:09:13,062 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 04:09:13,063 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 04:09:13,064 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2023-04-02 04:09:14,271 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 04:09:14,520 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 04:09:14,525 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2023-04-02 04:09:14,537 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8d95b6fc/ef9f0cceddda47f69785736bb7770d38/FLAG026eec1b9 [2023-04-02 04:09:14,548 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8d95b6fc/ef9f0cceddda47f69785736bb7770d38 [2023-04-02 04:09:14,551 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 04:09:14,552 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 04:09:14,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 04:09:14,553 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 04:09:14,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 04:09:14,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:09:14" (1/1) ... [2023-04-02 04:09:14,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e34e8fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:09:14, skipping insertion in model container [2023-04-02 04:09:14,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:09:14" (1/1) ... [2023-04-02 04:09:14,565 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 04:09:14,613 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 04:09:14,860 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_spec2_product43.cil.c[18403,18416] [2023-04-02 04:09:14,863 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:09:14,878 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 04:09:14,950 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_spec2_product43.cil.c[18403,18416] [2023-04-02 04:09:14,951 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:09:14,968 INFO L208 MainTranslator]: Completed translation [2023-04-02 04:09:14,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:09:14 WrapperNode [2023-04-02 04:09:14,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 04:09:14,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 04:09:14,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 04:09:14,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 04:09:14,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:09:14" (1/1) ... [2023-04-02 04:09:14,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:09:14" (1/1) ... [2023-04-02 04:09:14,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:09:14" (1/1) ... [2023-04-02 04:09:14,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:09:14" (1/1) ... [2023-04-02 04:09:15,011 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:09:14" (1/1) ... [2023-04-02 04:09:15,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:09:14" (1/1) ... [2023-04-02 04:09:15,027 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:09:14" (1/1) ... [2023-04-02 04:09:15,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:09:14" (1/1) ... [2023-04-02 04:09:15,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 04:09:15,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 04:09:15,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 04:09:15,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 04:09:15,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:09:14" (1/1) ... [2023-04-02 04:09:15,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:09:15,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:09:15,078 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 04:09:15,096 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 04:09:15,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 04:09:15,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 04:09:15,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 04:09:15,122 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 04:09:15,122 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-02 04:09:15,122 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-02 04:09:15,123 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-02 04:09:15,123 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-02 04:09:15,123 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-02 04:09:15,123 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-02 04:09:15,123 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-02 04:09:15,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 04:09:15,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 04:09:15,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 04:09:15,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 04:09:15,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 04:09:15,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 04:09:15,124 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 04:09:15,124 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 04:09:15,124 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 04:09:15,124 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 04:09:15,125 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 04:09:15,125 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 04:09:15,125 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 04:09:15,125 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 04:09:15,125 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 04:09:15,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2023-04-02 04:09:15,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2023-04-02 04:09:15,125 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 04:09:15,125 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 04:09:15,126 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-02 04:09:15,126 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-02 04:09:15,126 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2023-04-02 04:09:15,126 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-02 04:09:15,126 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-02 04:09:15,126 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-02 04:09:15,126 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-02 04:09:15,126 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-02 04:09:15,126 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-02 04:09:15,127 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-02 04:09:15,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 04:09:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 04:09:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 04:09:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 04:09:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 04:09:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 04:09:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 04:09:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-02 04:09:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-02 04:09:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-02 04:09:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-02 04:09:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-02 04:09:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-02 04:09:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-02 04:09:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 04:09:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 04:09:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 04:09:15,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 04:09:15,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 04:09:15,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 04:09:15,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 04:09:15,134 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 04:09:15,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 04:09:15,134 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 04:09:15,134 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 04:09:15,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 04:09:15,134 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 04:09:15,135 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 04:09:15,135 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 04:09:15,135 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 04:09:15,135 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 04:09:15,135 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-02 04:09:15,135 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 04:09:15,135 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 04:09:15,135 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2023-04-02 04:09:15,135 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 04:09:15,135 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 04:09:15,136 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 04:09:15,136 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 04:09:15,136 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 04:09:15,136 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 04:09:15,136 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 04:09:15,136 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 04:09:15,136 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-02 04:09:15,136 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2023-04-02 04:09:15,136 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-02 04:09:15,137 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-02 04:09:15,137 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-02 04:09:15,137 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-02 04:09:15,137 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-02 04:09:15,137 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-02 04:09:15,137 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2023-04-02 04:09:15,137 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-02 04:09:15,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 04:09:15,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 04:09:15,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 04:09:15,274 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 04:09:15,276 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 04:09:15,810 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 04:09:15,820 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 04:09:15,820 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-02 04:09:15,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:09:15 BoogieIcfgContainer [2023-04-02 04:09:15,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 04:09:15,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 04:09:15,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 04:09:15,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 04:09:15,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 04:09:14" (1/3) ... [2023-04-02 04:09:15,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13752f51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:09:15, skipping insertion in model container [2023-04-02 04:09:15,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:09:14" (2/3) ... [2023-04-02 04:09:15,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13752f51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:09:15, skipping insertion in model container [2023-04-02 04:09:15,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:09:15" (3/3) ... [2023-04-02 04:09:15,832 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product43.cil.c [2023-04-02 04:09:15,856 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 04:09:15,857 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 04:09:15,923 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 04:09:15,930 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;@2fdf7b21, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 04:09:15,930 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 04:09:15,957 INFO L276 IsEmpty]: Start isEmpty. Operand has 174 states, 96 states have (on average 1.3020833333333333) internal successors, (125), 109 states have internal predecessors, (125), 46 states have call successors, (46), 29 states have call predecessors, (46), 29 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2023-04-02 04:09:15,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-04-02 04:09:15,982 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:09:15,983 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:09:15,983 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:09:15,988 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:09:15,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1213342850, now seen corresponding path program 1 times [2023-04-02 04:09:16,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:09:16,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111591726] [2023-04-02 04:09:16,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:09:16,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:09:16,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:16,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:09:16,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:16,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:09:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:16,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:09:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:16,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:09:16,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:16,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:09:16,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:16,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:09:16,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:16,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 04:09:16,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:16,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 04:09:16,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:16,399 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 04:09:16,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:09:16,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111591726] [2023-04-02 04:09:16,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111591726] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:09:16,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:09:16,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 04:09:16,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791142654] [2023-04-02 04:09:16,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:09:16,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 04:09:16,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:09:16,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 04:09:16,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-04-02 04:09:16,436 INFO L87 Difference]: Start difference. First operand has 174 states, 96 states have (on average 1.3020833333333333) internal successors, (125), 109 states have internal predecessors, (125), 46 states have call successors, (46), 29 states have call predecessors, (46), 29 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:09:16,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:09:16,905 INFO L93 Difference]: Finished difference Result 295 states and 383 transitions. [2023-04-02 04:09:16,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 04:09:16,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 51 [2023-04-02 04:09:16,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:09:16,917 INFO L225 Difference]: With dead ends: 295 [2023-04-02 04:09:16,917 INFO L226 Difference]: Without dead ends: 165 [2023-04-02 04:09:16,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-04-02 04:09:16,923 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 174 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:09:16,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 62 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:09:16,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-04-02 04:09:16,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 131. [2023-04-02 04:09:16,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 77 states have (on average 1.2467532467532467) internal successors, (96), 87 states have internal predecessors, (96), 31 states have call successors, (31), 27 states have call predecessors, (31), 22 states have return successors, (26), 24 states have call predecessors, (26), 26 states have call successors, (26) [2023-04-02 04:09:17,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 153 transitions. [2023-04-02 04:09:17,002 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 153 transitions. Word has length 51 [2023-04-02 04:09:17,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:09:17,003 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 153 transitions. [2023-04-02 04:09:17,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:09:17,003 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 153 transitions. [2023-04-02 04:09:17,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-04-02 04:09:17,006 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:09:17,006 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 04:09:17,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 04:09:17,006 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:09:17,007 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:09:17,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1690053688, now seen corresponding path program 1 times [2023-04-02 04:09:17,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:09:17,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485094617] [2023-04-02 04:09:17,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:09:17,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:09:17,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:17,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:09:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:17,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:09:17,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:17,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:09:17,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:17,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:09:17,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:17,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:09:17,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:17,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:09:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:17,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:09:17,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:17,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:09:17,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:17,125 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 04:09:17,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:09:17,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485094617] [2023-04-02 04:09:17,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485094617] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:09:17,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:09:17,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 04:09:17,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223770129] [2023-04-02 04:09:17,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:09:17,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 04:09:17,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:09:17,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 04:09:17,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-02 04:09:17,129 INFO L87 Difference]: Start difference. First operand 131 states and 153 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:09:17,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:09:17,549 INFO L93 Difference]: Finished difference Result 231 states and 284 transitions. [2023-04-02 04:09:17,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 04:09:17,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 52 [2023-04-02 04:09:17,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:09:17,552 INFO L225 Difference]: With dead ends: 231 [2023-04-02 04:09:17,552 INFO L226 Difference]: Without dead ends: 155 [2023-04-02 04:09:17,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-04-02 04:09:17,557 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 196 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:09:17,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 38 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:09:17,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2023-04-02 04:09:17,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 122. [2023-04-02 04:09:17,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 71 states have (on average 1.2535211267605635) 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), 22 states have call predecessors, (24), 24 states have call successors, (24) [2023-04-02 04:09:17,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 141 transitions. [2023-04-02 04:09:17,602 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 141 transitions. Word has length 52 [2023-04-02 04:09:17,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:09:17,603 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 141 transitions. [2023-04-02 04:09:17,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:09:17,603 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 141 transitions. [2023-04-02 04:09:17,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-04-02 04:09:17,611 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:09:17,611 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] [2023-04-02 04:09:17,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 04:09:17,611 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:09:17,612 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:09:17,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1122448981, now seen corresponding path program 1 times [2023-04-02 04:09:17,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:09:17,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804233833] [2023-04-02 04:09:17,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:09:17,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:09:17,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:17,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:09:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:17,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:09:17,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:17,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:09:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:17,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:09:17,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:17,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:09:17,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:17,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:09:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:17,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 04:09:17,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:17,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:09:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:17,901 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 04:09:17,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:09:17,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804233833] [2023-04-02 04:09:17,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804233833] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:09:17,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:09:17,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:09:17,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584780845] [2023-04-02 04:09:17,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:09:17,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:09:17,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:09:17,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:09:17,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:09:17,905 INFO L87 Difference]: Start difference. First operand 122 states and 141 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-02 04:09:18,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:09:18,737 INFO L93 Difference]: Finished difference Result 414 states and 517 transitions. [2023-04-02 04:09:18,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 04:09:18,738 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 56 [2023-04-02 04:09:18,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:09:18,741 INFO L225 Difference]: With dead ends: 414 [2023-04-02 04:09:18,741 INFO L226 Difference]: Without dead ends: 320 [2023-04-02 04:09:18,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2023-04-02 04:09:18,743 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 337 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:09:18,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 132 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 920 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 04:09:18,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2023-04-02 04:09:18,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 247. [2023-04-02 04:09:18,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 152 states have (on average 1.2960526315789473) internal successors, (197), 170 states have internal predecessors, (197), 51 states have call successors, (51), 47 states have call predecessors, (51), 43 states have return successors, (48), 43 states have call predecessors, (48), 47 states have call successors, (48) [2023-04-02 04:09:18,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 296 transitions. [2023-04-02 04:09:18,809 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 296 transitions. Word has length 56 [2023-04-02 04:09:18,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:09:18,810 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 296 transitions. [2023-04-02 04:09:18,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-02 04:09:18,811 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 296 transitions. [2023-04-02 04:09:18,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-04-02 04:09:18,812 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:09:18,813 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] [2023-04-02 04:09:18,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 04:09:18,813 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:09:18,813 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:09:18,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1014555572, now seen corresponding path program 1 times [2023-04-02 04:09:18,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:09:18,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784711184] [2023-04-02 04:09:18,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:09:18,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:09:18,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:19,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:09:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:19,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:09:19,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:19,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:09:19,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:19,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:09:19,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:19,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:09:19,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:19,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:09:19,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:19,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:09:19,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:19,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:09:19,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:19,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:09:19,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:19,064 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 04:09:19,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:09:19,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784711184] [2023-04-02 04:09:19,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784711184] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:09:19,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:09:19,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:09:19,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975631709] [2023-04-02 04:09:19,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:09:19,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:09:19,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:09:19,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:09:19,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:09:19,067 INFO L87 Difference]: Start difference. First operand 247 states and 296 transitions. Second operand has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 04:09:19,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:09:19,880 INFO L93 Difference]: Finished difference Result 791 states and 1035 transitions. [2023-04-02 04:09:19,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 04:09:19,881 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 62 [2023-04-02 04:09:19,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:09:19,890 INFO L225 Difference]: With dead ends: 791 [2023-04-02 04:09:19,890 INFO L226 Difference]: Without dead ends: 572 [2023-04-02 04:09:19,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2023-04-02 04:09:19,901 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 516 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:09:19,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 92 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [327 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 04:09:19,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2023-04-02 04:09:19,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 442. [2023-04-02 04:09:19,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 275 states have (on average 1.2836363636363637) internal successors, (353), 310 states have internal predecessors, (353), 89 states have call successors, (89), 81 states have call predecessors, (89), 77 states have return successors, (90), 77 states have call predecessors, (90), 85 states have call successors, (90) [2023-04-02 04:09:19,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 532 transitions. [2023-04-02 04:09:19,992 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 532 transitions. Word has length 62 [2023-04-02 04:09:19,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:09:19,993 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 532 transitions. [2023-04-02 04:09:19,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 04:09:19,993 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 532 transitions. [2023-04-02 04:09:19,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-04-02 04:09:19,995 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:09:19,996 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] [2023-04-02 04:09:19,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 04:09:19,996 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:09:19,997 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:09:19,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1872073896, now seen corresponding path program 1 times [2023-04-02 04:09:19,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:09:19,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133320499] [2023-04-02 04:09:19,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:09:19,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:09:20,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:20,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:09:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:20,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:09:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:20,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:09:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:20,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:09:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:20,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:09:20,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:20,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:09:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:20,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 04:09:20,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:20,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 04:09:20,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:20,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 04:09:20,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:20,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 04:09:20,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:20,274 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 04:09:20,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:09:20,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133320499] [2023-04-02 04:09:20,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133320499] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:09:20,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:09:20,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 04:09:20,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981151888] [2023-04-02 04:09:20,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:09:20,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 04:09:20,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:09:20,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 04:09:20,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-04-02 04:09:20,277 INFO L87 Difference]: Start difference. First operand 442 states and 532 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (16), 7 states have call predecessors, (16), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-02 04:09:21,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:09:21,168 INFO L93 Difference]: Finished difference Result 1232 states and 1648 transitions. [2023-04-02 04:09:21,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-04-02 04:09:21,168 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (16), 7 states have call predecessors, (16), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 66 [2023-04-02 04:09:21,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:09:21,175 INFO L225 Difference]: With dead ends: 1232 [2023-04-02 04:09:21,175 INFO L226 Difference]: Without dead ends: 818 [2023-04-02 04:09:21,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=205, Invalid=551, Unknown=0, NotChecked=0, Total=756 [2023-04-02 04:09:21,179 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 317 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:09:21,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 104 Invalid, 941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:09:21,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2023-04-02 04:09:21,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 633. [2023-04-02 04:09:21,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 396 states have (on average 1.2424242424242424) internal successors, (492), 429 states have internal predecessors, (492), 119 states have call successors, (119), 111 states have call predecessors, (119), 117 states have return successors, (152), 117 states have call predecessors, (152), 115 states have call successors, (152) [2023-04-02 04:09:21,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 763 transitions. [2023-04-02 04:09:21,303 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 763 transitions. Word has length 66 [2023-04-02 04:09:21,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:09:21,305 INFO L495 AbstractCegarLoop]: Abstraction has 633 states and 763 transitions. [2023-04-02 04:09:21,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (16), 7 states have call predecessors, (16), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-02 04:09:21,306 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 763 transitions. [2023-04-02 04:09:21,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 04:09:21,308 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:09:21,308 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:09:21,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 04:09:21,309 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:09:21,309 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:09:21,310 INFO L85 PathProgramCache]: Analyzing trace with hash -2068523833, now seen corresponding path program 1 times [2023-04-02 04:09:21,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:09:21,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542938405] [2023-04-02 04:09:21,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:09:21,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:09:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:21,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:09:21,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:21,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:09:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:21,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:09:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:21,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:09:21,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:21,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:09:21,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:21,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:09:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:21,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 04:09:21,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:21,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:09:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:21,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:09:21,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:21,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:09:21,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:21,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:09:21,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:21,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:09:21,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:21,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:09:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:21,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:09:21,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:21,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 04:09:21,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:21,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 04:09:21,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:21,517 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:09:21,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:09:21,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542938405] [2023-04-02 04:09:21,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542938405] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:09:21,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:09:21,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 04:09:21,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592892178] [2023-04-02 04:09:21,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:09:21,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 04:09:21,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:09:21,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 04:09:21,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-04-02 04:09:21,519 INFO L87 Difference]: Start difference. First operand 633 states and 763 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2023-04-02 04:09:22,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:09:22,272 INFO L93 Difference]: Finished difference Result 1517 states and 2060 transitions. [2023-04-02 04:09:22,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 04:09:22,273 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 98 [2023-04-02 04:09:22,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:09:22,279 INFO L225 Difference]: With dead ends: 1517 [2023-04-02 04:09:22,279 INFO L226 Difference]: Without dead ends: 912 [2023-04-02 04:09:22,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-04-02 04:09:22,282 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 224 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:09:22,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 77 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:09:22,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2023-04-02 04:09:22,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 659. [2023-04-02 04:09:22,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 416 states have (on average 1.2307692307692308) internal successors, (512), 449 states have internal predecessors, (512), 119 states have call successors, (119), 111 states have call predecessors, (119), 123 states have return successors, (158), 121 states have call predecessors, (158), 115 states have call successors, (158) [2023-04-02 04:09:22,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 789 transitions. [2023-04-02 04:09:22,367 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 789 transitions. Word has length 98 [2023-04-02 04:09:22,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:09:22,368 INFO L495 AbstractCegarLoop]: Abstraction has 659 states and 789 transitions. [2023-04-02 04:09:22,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2023-04-02 04:09:22,368 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 789 transitions. [2023-04-02 04:09:22,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 04:09:22,374 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:09:22,374 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:09:22,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 04:09:22,374 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:09:22,375 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:09:22,375 INFO L85 PathProgramCache]: Analyzing trace with hash 177055621, now seen corresponding path program 1 times [2023-04-02 04:09:22,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:09:22,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322972620] [2023-04-02 04:09:22,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:09:22,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:09:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:22,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:09:22,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:22,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:09:22,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:22,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:09:22,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:22,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:09:22,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:22,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:09:22,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:22,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:09:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:22,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 04:09:22,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:22,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:09:22,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:22,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:09:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:22,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:09:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:22,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:09:22,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:22,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:09:22,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:22,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:09:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:22,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:09:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:22,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 04:09:22,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:22,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 04:09:22,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:22,589 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:09:22,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:09:22,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322972620] [2023-04-02 04:09:22,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322972620] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:09:22,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:09:22,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 04:09:22,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468165049] [2023-04-02 04:09:22,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:09:22,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 04:09:22,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:09:22,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 04:09:22,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-04-02 04:09:22,592 INFO L87 Difference]: Start difference. First operand 659 states and 789 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (22), 6 states have call predecessors, (22), 4 states have return successors, (16), 4 states have call predecessors, (16), 2 states have call successors, (16) [2023-04-02 04:09:23,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:09:23,503 INFO L93 Difference]: Finished difference Result 1563 states and 2102 transitions. [2023-04-02 04:09:23,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-02 04:09:23,504 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (22), 6 states have call predecessors, (22), 4 states have return successors, (16), 4 states have call predecessors, (16), 2 states have call successors, (16) Word has length 98 [2023-04-02 04:09:23,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:09:23,509 INFO L225 Difference]: With dead ends: 1563 [2023-04-02 04:09:23,509 INFO L226 Difference]: Without dead ends: 932 [2023-04-02 04:09:23,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2023-04-02 04:09:23,512 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 296 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 1228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:09:23,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 87 Invalid, 1228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 1064 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 04:09:23,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2023-04-02 04:09:23,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 675. [2023-04-02 04:09:23,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 428 states have (on average 1.2242990654205608) internal successors, (524), 461 states have internal predecessors, (524), 119 states have call successors, (119), 111 states have call predecessors, (119), 127 states have return successors, (162), 125 states have call predecessors, (162), 115 states have call successors, (162) [2023-04-02 04:09:23,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 805 transitions. [2023-04-02 04:09:23,598 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 805 transitions. Word has length 98 [2023-04-02 04:09:23,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:09:23,598 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 805 transitions. [2023-04-02 04:09:23,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (22), 6 states have call predecessors, (22), 4 states have return successors, (16), 4 states have call predecessors, (16), 2 states have call successors, (16) [2023-04-02 04:09:23,598 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 805 transitions. [2023-04-02 04:09:23,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 04:09:23,603 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:09:23,603 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:09:23,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 04:09:23,604 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:09:23,605 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:09:23,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1146636644, now seen corresponding path program 1 times [2023-04-02 04:09:23,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:09:23,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660442087] [2023-04-02 04:09:23,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:09:23,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:09:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:23,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:09:23,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:23,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:09:23,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:23,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:09:23,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:23,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:09:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:23,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:09:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:23,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:09:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:23,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 04:09:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:23,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:09:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:23,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:09:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:23,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:09:23,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:23,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:09:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:23,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:09:23,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:23,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:09:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:23,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:09:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:23,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 04:09:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:23,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 04:09:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:23,812 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:09:23,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:09:23,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660442087] [2023-04-02 04:09:23,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660442087] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:09:23,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:09:23,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:09:23,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130583417] [2023-04-02 04:09:23,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:09:23,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:09:23,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:09:23,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:09:23,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:09:23,814 INFO L87 Difference]: Start difference. First operand 675 states and 805 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (22), 7 states have call predecessors, (22), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-04-02 04:09:24,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:09:24,710 INFO L93 Difference]: Finished difference Result 2412 states and 3279 transitions. [2023-04-02 04:09:24,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 04:09:24,710 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (22), 7 states have call predecessors, (22), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 98 [2023-04-02 04:09:24,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:09:24,721 INFO L225 Difference]: With dead ends: 2412 [2023-04-02 04:09:24,721 INFO L226 Difference]: Without dead ends: 1765 [2023-04-02 04:09:24,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2023-04-02 04:09:24,725 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 696 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 404 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:09:24,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 110 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [404 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:09:24,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1765 states. [2023-04-02 04:09:24,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1765 to 1435. [2023-04-02 04:09:24,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1435 states, 936 states have (on average 1.202991452991453) internal successors, (1126), 1007 states have internal predecessors, (1126), 247 states have call successors, (247), 243 states have call predecessors, (247), 251 states have return successors, (366), 237 states have call predecessors, (366), 243 states have call successors, (366) [2023-04-02 04:09:24,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1435 states to 1435 states and 1739 transitions. [2023-04-02 04:09:24,952 INFO L78 Accepts]: Start accepts. Automaton has 1435 states and 1739 transitions. Word has length 98 [2023-04-02 04:09:24,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:09:24,952 INFO L495 AbstractCegarLoop]: Abstraction has 1435 states and 1739 transitions. [2023-04-02 04:09:24,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (22), 7 states have call predecessors, (22), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-04-02 04:09:24,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1435 states and 1739 transitions. [2023-04-02 04:09:24,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-04-02 04:09:24,957 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:09:24,957 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:09:24,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 04:09:24,958 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:09:24,958 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:09:24,958 INFO L85 PathProgramCache]: Analyzing trace with hash -778277442, now seen corresponding path program 1 times [2023-04-02 04:09:24,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:09:24,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107017780] [2023-04-02 04:09:24,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:09:24,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:09:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:25,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:09:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:25,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:09:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:25,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:09:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:25,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:09:25,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:25,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:09:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:25,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:09:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:25,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:09:25,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:25,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:09:25,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:25,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:09:25,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:25,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:09:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:25,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:09:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:25,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:09:25,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:25,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:09:25,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:25,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:09:25,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:25,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:09:25,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:25,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 04:09:25,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:25,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 04:09:25,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:25,234 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-02 04:09:25,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:09:25,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107017780] [2023-04-02 04:09:25,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107017780] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:09:25,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177407228] [2023-04-02 04:09:25,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:09:25,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:09:25,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:09:25,238 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 04:09:25,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-02 04:09:25,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:25,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-02 04:09:25,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:09:25,659 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:09:25,659 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 04:09:25,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177407228] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:09:25,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 04:09:25,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [18] total 23 [2023-04-02 04:09:25,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609209658] [2023-04-02 04:09:25,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:09:25,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:09:25,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:09:25,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:09:25,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2023-04-02 04:09:25,662 INFO L87 Difference]: Start difference. First operand 1435 states and 1739 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2023-04-02 04:09:25,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:09:25,972 INFO L93 Difference]: Finished difference Result 2776 states and 3380 transitions. [2023-04-02 04:09:25,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 04:09:25,973 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) Word has length 102 [2023-04-02 04:09:25,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:09:25,980 INFO L225 Difference]: With dead ends: 2776 [2023-04-02 04:09:25,980 INFO L226 Difference]: Without dead ends: 1369 [2023-04-02 04:09:25,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2023-04-02 04:09:25,984 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 70 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 04:09:25,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 685 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 04:09:25,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1369 states. [2023-04-02 04:09:26,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1369 to 1369. [2023-04-02 04:09:26,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1369 states, 894 states have (on average 1.186800894854586) internal successors, (1061), 963 states have internal predecessors, (1061), 237 states have call successors, (237), 233 states have call predecessors, (237), 237 states have return successors, (325), 223 states have call predecessors, (325), 233 states have call successors, (325) [2023-04-02 04:09:26,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1369 states to 1369 states and 1623 transitions. [2023-04-02 04:09:26,169 INFO L78 Accepts]: Start accepts. Automaton has 1369 states and 1623 transitions. Word has length 102 [2023-04-02 04:09:26,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:09:26,170 INFO L495 AbstractCegarLoop]: Abstraction has 1369 states and 1623 transitions. [2023-04-02 04:09:26,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2023-04-02 04:09:26,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1369 states and 1623 transitions. [2023-04-02 04:09:26,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-04-02 04:09:26,173 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:09:26,174 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:09:26,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-02 04:09:26,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:09:26,387 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:09:26,388 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:09:26,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1022629864, now seen corresponding path program 1 times [2023-04-02 04:09:26,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:09:26,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35614436] [2023-04-02 04:09:26,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:09:26,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:09:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:26,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:09:26,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:26,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:09:26,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:26,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:09:26,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:26,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:09:26,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:26,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:09:26,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:26,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:09:26,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:26,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:09:26,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:26,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:09:26,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:26,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:09:26,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:26,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:09:26,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:26,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:09:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:26,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:09:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:26,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:09:26,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:26,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:09:26,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:26,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:09:26,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:26,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:09:26,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:26,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:09:26,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:26,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 04:09:26,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:26,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-04-02 04:09:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:26,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-04-02 04:09:26,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:26,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:09:26,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:26,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-04-02 04:09:26,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:26,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-04-02 04:09:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:26,573 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-04-02 04:09:26,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:09:26,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35614436] [2023-04-02 04:09:26,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35614436] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:09:26,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137439895] [2023-04-02 04:09:26,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:09:26,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:09:26,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:09:26,575 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 04:09:26,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-02 04:09:26,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:26,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 11 conjunts are in the unsatisfiable core [2023-04-02 04:09:26,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:09:26,849 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:09:26,849 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 04:09:26,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137439895] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:09:26,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 04:09:26,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 9 [2023-04-02 04:09:26,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187585649] [2023-04-02 04:09:26,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:09:26,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 04:09:26,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:09:26,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 04:09:26,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:09:26,852 INFO L87 Difference]: Start difference. First operand 1369 states and 1623 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-02 04:09:27,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:09:27,112 INFO L93 Difference]: Finished difference Result 2054 states and 2483 transitions. [2023-04-02 04:09:27,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 04:09:27,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 137 [2023-04-02 04:09:27,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:09:27,123 INFO L225 Difference]: With dead ends: 2054 [2023-04-02 04:09:27,124 INFO L226 Difference]: Without dead ends: 2051 [2023-04-02 04:09:27,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:09:27,125 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 87 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 04:09:27,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 249 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 04:09:27,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2051 states. [2023-04-02 04:09:27,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2051 to 1697. [2023-04-02 04:09:27,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 1106 states have (on average 1.194394213381555) internal successors, (1321), 1191 states have internal predecessors, (1321), 297 states have call successors, (297), 291 states have call predecessors, (297), 293 states have return successors, (426), 271 states have call predecessors, (426), 293 states have call successors, (426) [2023-04-02 04:09:27,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 2044 transitions. [2023-04-02 04:09:27,405 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 2044 transitions. Word has length 137 [2023-04-02 04:09:27,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:09:27,405 INFO L495 AbstractCegarLoop]: Abstraction has 1697 states and 2044 transitions. [2023-04-02 04:09:27,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-02 04:09:27,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 2044 transitions. [2023-04-02 04:09:27,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-04-02 04:09:27,412 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:09:27,412 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:09:27,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-02 04:09:27,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-04-02 04:09:27,621 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:09:27,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:09:27,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1741433262, now seen corresponding path program 1 times [2023-04-02 04:09:27,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:09:27,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281106955] [2023-04-02 04:09:27,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:09:27,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:09:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:27,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:09:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:27,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:09:27,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:27,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:09:27,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:27,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:09:27,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:27,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:09:27,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:27,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:09:27,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:27,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:09:27,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:27,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:09:27,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:27,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:09:27,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:27,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:09:27,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:27,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:09:27,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:27,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:09:27,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:27,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:09:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:27,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:09:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:27,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:09:27,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:27,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:09:27,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:27,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:09:27,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:27,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 04:09:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:27,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 04:09:27,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:28,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:09:28,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:28,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:09:28,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:28,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:09:28,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:28,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:09:28,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:28,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:09:28,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:28,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:09:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:28,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-04-02 04:09:28,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:28,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-04-02 04:09:28,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:28,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-04-02 04:09:28,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:28,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:09:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:28,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-04-02 04:09:28,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:28,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-04-02 04:09:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:28,067 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 35 proven. 18 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-04-02 04:09:28,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:09:28,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281106955] [2023-04-02 04:09:28,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281106955] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:09:28,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935605542] [2023-04-02 04:09:28,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:09:28,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:09:28,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:09:28,069 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 04:09:28,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-02 04:09:28,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:28,216 INFO L262 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 20 conjunts are in the unsatisfiable core [2023-04-02 04:09:28,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:09:28,354 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 68 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-04-02 04:09:28,355 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 04:09:28,826 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 42 proven. 7 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-04-02 04:09:28,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935605542] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 04:09:28,827 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 04:09:28,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 9] total 20 [2023-04-02 04:09:28,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760182392] [2023-04-02 04:09:28,827 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 04:09:28,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-04-02 04:09:28,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:09:28,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-04-02 04:09:28,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2023-04-02 04:09:28,829 INFO L87 Difference]: Start difference. First operand 1697 states and 2044 transitions. Second operand has 20 states, 20 states have (on average 7.35) internal successors, (147), 14 states have internal predecessors, (147), 10 states have call successors, (73), 14 states have call predecessors, (73), 14 states have return successors, (60), 10 states have call predecessors, (60), 10 states have call successors, (60) [2023-04-02 04:09:31,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:09:31,581 INFO L93 Difference]: Finished difference Result 6167 states and 9360 transitions. [2023-04-02 04:09:31,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-04-02 04:09:31,582 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 7.35) internal successors, (147), 14 states have internal predecessors, (147), 10 states have call successors, (73), 14 states have call predecessors, (73), 14 states have return successors, (60), 10 states have call predecessors, (60), 10 states have call successors, (60) Word has length 183 [2023-04-02 04:09:31,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:09:31,614 INFO L225 Difference]: With dead ends: 6167 [2023-04-02 04:09:31,615 INFO L226 Difference]: Without dead ends: 4806 [2023-04-02 04:09:31,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 423 SyntacticMatches, 10 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1444 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1182, Invalid=3648, Unknown=0, NotChecked=0, Total=4830 [2023-04-02 04:09:31,625 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 1113 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 1725 mSolverCounterSat, 626 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 2351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 626 IncrementalHoareTripleChecker+Valid, 1725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-02 04:09:31,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1118 Valid, 747 Invalid, 2351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [626 Valid, 1725 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-02 04:09:31,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4806 states. [2023-04-02 04:09:32,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4806 to 3702. [2023-04-02 04:09:32,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3702 states, 2496 states have (on average 1.2848557692307692) internal successors, (3207), 2778 states have internal predecessors, (3207), 763 states have call successors, (763), 455 states have call predecessors, (763), 442 states have return successors, (1259), 651 states have call predecessors, (1259), 759 states have call successors, (1259) [2023-04-02 04:09:32,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3702 states to 3702 states and 5229 transitions. [2023-04-02 04:09:32,217 INFO L78 Accepts]: Start accepts. Automaton has 3702 states and 5229 transitions. Word has length 183 [2023-04-02 04:09:32,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:09:32,217 INFO L495 AbstractCegarLoop]: Abstraction has 3702 states and 5229 transitions. [2023-04-02 04:09:32,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 7.35) internal successors, (147), 14 states have internal predecessors, (147), 10 states have call successors, (73), 14 states have call predecessors, (73), 14 states have return successors, (60), 10 states have call predecessors, (60), 10 states have call successors, (60) [2023-04-02 04:09:32,218 INFO L276 IsEmpty]: Start isEmpty. Operand 3702 states and 5229 transitions. [2023-04-02 04:09:32,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-04-02 04:09:32,227 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:09:32,228 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:09:32,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-02 04:09:32,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:09:32,436 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:09:32,436 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:09:32,436 INFO L85 PathProgramCache]: Analyzing trace with hash 678036526, now seen corresponding path program 1 times [2023-04-02 04:09:32,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:09:32,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666690560] [2023-04-02 04:09:32,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:09:32,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:09:32,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:09:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:09:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:09:32,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:09:32,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:09:32,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:09:32,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:09:32,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:09:32,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:09:32,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:09:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:09:32,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:09:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:09:32,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:09:32,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:09:32,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:09:32,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:09:32,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 04:09:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 04:09:32,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:09:32,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:09:32,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:09:32,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:09:32,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:09:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:09:32,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-04-02 04:09:32,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-04-02 04:09:32,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-04-02 04:09:32,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:09:32,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-04-02 04:09:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-04-02 04:09:32,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,815 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 41 proven. 16 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-04-02 04:09:32,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:09:32,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666690560] [2023-04-02 04:09:32,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666690560] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:09:32,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280403006] [2023-04-02 04:09:32,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:09:32,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:09:32,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:09:32,817 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 04:09:32,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-02 04:09:32,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:09:32,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 14 conjunts are in the unsatisfiable core [2023-04-02 04:09:32,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:09:33,092 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 69 proven. 23 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-04-02 04:09:33,092 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 04:09:33,518 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 48 proven. 11 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-04-02 04:09:33,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280403006] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 04:09:33,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 04:09:33,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 9] total 20 [2023-04-02 04:09:33,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843695100] [2023-04-02 04:09:33,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 04:09:33,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-04-02 04:09:33,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:09:33,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-04-02 04:09:33,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2023-04-02 04:09:33,521 INFO L87 Difference]: Start difference. First operand 3702 states and 5229 transitions. Second operand has 20 states, 20 states have (on average 8.2) internal successors, (164), 14 states have internal predecessors, (164), 10 states have call successors, (69), 13 states have call predecessors, (69), 10 states have return successors, (55), 7 states have call predecessors, (55), 10 states have call successors, (55) [2023-04-02 04:09:36,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:09:36,095 INFO L93 Difference]: Finished difference Result 10392 states and 15519 transitions. [2023-04-02 04:09:36,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-04-02 04:09:36,096 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 8.2) internal successors, (164), 14 states have internal predecessors, (164), 10 states have call successors, (69), 13 states have call predecessors, (69), 10 states have return successors, (55), 7 states have call predecessors, (55), 10 states have call successors, (55) Word has length 183 [2023-04-02 04:09:36,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:09:36,178 INFO L225 Difference]: With dead ends: 10392 [2023-04-02 04:09:36,178 INFO L226 Difference]: Without dead ends: 7026 [2023-04-02 04:09:36,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 511 GetRequests, 442 SyntacticMatches, 10 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1094 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=947, Invalid=2713, Unknown=0, NotChecked=0, Total=3660 [2023-04-02 04:09:36,195 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 1547 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 1013 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1554 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 2199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1013 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-02 04:09:36,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1554 Valid, 274 Invalid, 2199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1013 Valid, 1186 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-02 04:09:36,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7026 states. [2023-04-02 04:09:37,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7026 to 4482. [2023-04-02 04:09:37,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4482 states, 2976 states have (on average 1.2375672043010753) internal successors, (3683), 3226 states have internal predecessors, (3683), 845 states have call successors, (845), 669 states have call predecessors, (845), 660 states have return successors, (1214), 753 states have call predecessors, (1214), 841 states have call successors, (1214) [2023-04-02 04:09:37,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4482 states to 4482 states and 5742 transitions. [2023-04-02 04:09:37,028 INFO L78 Accepts]: Start accepts. Automaton has 4482 states and 5742 transitions. Word has length 183 [2023-04-02 04:09:37,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:09:37,028 INFO L495 AbstractCegarLoop]: Abstraction has 4482 states and 5742 transitions. [2023-04-02 04:09:37,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 8.2) internal successors, (164), 14 states have internal predecessors, (164), 10 states have call successors, (69), 13 states have call predecessors, (69), 10 states have return successors, (55), 7 states have call predecessors, (55), 10 states have call successors, (55) [2023-04-02 04:09:37,029 INFO L276 IsEmpty]: Start isEmpty. Operand 4482 states and 5742 transitions. [2023-04-02 04:09:37,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-04-02 04:09:37,035 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:09:37,036 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:09:37,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-04-02 04:09:37,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:09:37,245 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:09:37,245 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:09:37,245 INFO L85 PathProgramCache]: Analyzing trace with hash 718965330, now seen corresponding path program 1 times [2023-04-02 04:09:37,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:09:37,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825874652] [2023-04-02 04:09:37,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:09:37,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:09:37,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:09:37,274 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-02 04:09:37,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:09:37,336 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-04-02 04:09:37,337 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-02 04:09:37,338 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 04:09:37,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 04:09:37,348 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:09:37,352 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 04:09:37,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 04:09:37 BoogieIcfgContainer [2023-04-02 04:09:37,444 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 04:09:37,444 INFO L158 Benchmark]: Toolchain (without parser) took 22892.62ms. Allocated memory was 286.3MB in the beginning and 889.2MB in the end (delta: 602.9MB). Free memory was 249.4MB in the beginning and 775.5MB in the end (delta: -526.1MB). Peak memory consumption was 78.4MB. Max. memory is 8.0GB. [2023-04-02 04:09:37,445 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 190.8MB. Free memory is still 139.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 04:09:37,445 INFO L158 Benchmark]: CACSL2BoogieTranslator took 416.35ms. Allocated memory is still 286.3MB. Free memory was 248.9MB in the beginning and 230.4MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-04-02 04:09:37,445 INFO L158 Benchmark]: Boogie Preprocessor took 67.76ms. Allocated memory is still 286.3MB. Free memory was 230.4MB in the beginning and 226.9MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-02 04:09:37,445 INFO L158 Benchmark]: RCFGBuilder took 779.55ms. Allocated memory is still 286.3MB. Free memory was 226.9MB in the beginning and 188.1MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2023-04-02 04:09:37,446 INFO L158 Benchmark]: TraceAbstraction took 21619.39ms. Allocated memory was 286.3MB in the beginning and 889.2MB in the end (delta: 602.9MB). Free memory was 187.1MB in the beginning and 775.5MB in the end (delta: -588.4MB). Peak memory consumption was 16.5MB. Max. memory is 8.0GB. [2023-04-02 04:09:37,447 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 190.8MB. Free memory is still 139.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 416.35ms. Allocated memory is still 286.3MB. Free memory was 248.9MB in the beginning and 230.4MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 67.76ms. Allocated memory is still 286.3MB. Free memory was 230.4MB in the beginning and 226.9MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 779.55ms. Allocated memory is still 286.3MB. Free memory was 226.9MB in the beginning and 188.1MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. * TraceAbstraction took 21619.39ms. Allocated memory was 286.3MB in the beginning and 889.2MB in the end (delta: 602.9MB). Free memory was 187.1MB in the beginning and 775.5MB in the end (delta: -588.4MB). Peak memory consumption was 16.5MB. 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: 956]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L320] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L517] int cleanupTimeShifts = 4; [L658] int methAndRunningLastTime ; [L767] int pumpRunning = 0; [L768] int systemActive = 1; VAL [\old(cleanupTimeShifts)=55, \old(head)={49:54}, \old(methAndRunningLastTime)=56, \old(methaneLevelCritical)=53, \old(pumpRunning)=58, \old(systemActive)=52, \old(waterLevel)=51, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L598] int retValue_acc ; [L599] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L603] FCALL select_helpers() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L604] FCALL select_features() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L605] CALL, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L647] int retValue_acc ; [L650] retValue_acc = 1 [L651] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L605] RET, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L605] tmp = valid_product() [L607] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L609] FCALL setup() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L610] CALL runTest() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L588] CALL __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L663] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L588] RET __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L589] CALL test() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L699] int splverifierCounter ; [L700] int tmp ; [L701] int tmp___0 ; [L702] int tmp___1 ; [L703] int tmp___2 ; [L706] splverifierCounter = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L708] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L710] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L716] tmp = __VERIFIER_nondet_int() [L718] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L720] CALL waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L75] COND TRUE waterLevel < 2 [L76] waterLevel = waterLevel + 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L720] RET waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L726] tmp___0 = __VERIFIER_nondet_int() [L728] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L736] tmp___2 = __VERIFIER_nondet_int() [L738] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=-1, waterLevel=2] [L753] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L774] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L781] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L783] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L803] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L806] COND TRUE ! pumpRunning VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L808] CALL, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L918] int retValue_acc ; [L919] int tmp ; [L920] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L924] CALL, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L137] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L140] COND FALSE !(waterLevel < 2) [L144] retValue_acc = 0 [L145] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L924] RET, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L924] tmp = isHighWaterSensorDry() [L926] COND FALSE !(\read(tmp)) [L929] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L931] retValue_acc = tmp___0 [L932] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L808] RET, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L808] tmp = isHighWaterLevel() [L810] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L812] CALL activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L837] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L841] CALL, EXPR isMethaneAlarm() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L862] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L866] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L866] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L866] retValue_acc = isMethaneLevelCritical() [L868] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L841] RET, EXPR isMethaneAlarm() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L841] tmp = isMethaneAlarm() [L843] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L847] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L831] pumpRunning = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L847] RET activatePump__wrappee__highWaterSensor() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L812] RET activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L783] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L789] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L668] int tmp ; [L669] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L673] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L673] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L673] tmp = isMethaneLevelCritical() [L675] COND FALSE !(\read(tmp)) [L691] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L789] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L753] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=-1, waterLevel=2] [L708] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=-1, waterLevel=2] [L710] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=-1, waterLevel=2] [L716] tmp = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=2] [L726] tmp___0 = __VERIFIER_nondet_int() [L728] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-2, tmp___2=-1, waterLevel=2] [L730] CALL changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L87] COND FALSE !(\read(methaneLevelCritical)) [L90] methaneLevelCritical = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L730] RET changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-2, tmp___2=-1, waterLevel=2] [L736] tmp___2 = __VERIFIER_nondet_int() [L738] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-2, tmp___2=-3, waterLevel=2] [L753] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L774] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L776] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L63] COND TRUE waterLevel > 0 [L64] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L776] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L781] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L783] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L803] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L806] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L821] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L783] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L789] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L668] int tmp ; [L669] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L673] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L673] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L673] tmp = isMethaneLevelCritical() [L675] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L677] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L873] int retValue_acc ; [L876] retValue_acc = pumpRunning [L877] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L677] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L677] tmp___0 = isPumpRunning() [L679] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L680] COND FALSE !(\read(methAndRunningLastTime)) [L685] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L789] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L753] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-2, tmp___2=-3, waterLevel=1] [L708] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-2, tmp___2=-3, waterLevel=1] [L710] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-2, tmp___2=-3, waterLevel=1] [L716] tmp = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-2, tmp___2=-3, waterLevel=1] [L726] tmp___0 = __VERIFIER_nondet_int() [L728] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-3, waterLevel=1] [L736] tmp___2 = __VERIFIER_nondet_int() [L738] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-4, waterLevel=1] [L753] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L774] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L776] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L63] COND TRUE waterLevel > 0 [L64] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L776] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L781] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L783] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L803] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L806] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L821] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L783] RET processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L789] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L668] int tmp ; [L669] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L673] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L673] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L673] tmp = isMethaneLevelCritical() [L675] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=0] [L677] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L873] int retValue_acc ; [L876] retValue_acc = pumpRunning [L877] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L677] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=0] [L677] tmp___0 = isPumpRunning() [L679] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L680] COND TRUE \read(methAndRunningLastTime) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L682] CALL __automaton_fail() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L956] reach_error() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 21.4s, OverallIterations: 13, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 12.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5698 SdHoareTripleChecker+Valid, 6.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5573 mSDsluCounter, 2657 SdHoareTripleChecker+Invalid, 5.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2072 mSDsCounter, 3190 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8461 IncrementalHoareTripleChecker+Invalid, 11651 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3190 mSolverCounterUnsat, 585 mSDtfsCounter, 8461 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1682 GetRequests, 1382 SyntacticMatches, 22 SemanticMatches, 278 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3094 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4482occurred in iteration=12, InterpolantAutomatonStates: 228, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.7s AutomataMinimizationTime, 12 MinimizatonAttempts, 5297 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 1970 NumberOfCodeBlocks, 1970 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2139 ConstructedInterpolants, 0 QuantifiedInterpolants, 4332 SizeOfPredicates, 9 NumberOfNonLiveVariables, 2172 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 18 InterpolantComputations, 10 PerfectInterpolantSequences, 610/693 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 04:09:37,465 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...