/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 01:15:47,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 01:15:47,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 01:15:47,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 01:15:47,524 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 01:15:47,527 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 01:15:47,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 01:15:47,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 01:15:47,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 01:15:47,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 01:15:47,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 01:15:47,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 01:15:47,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 01:15:47,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 01:15:47,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 01:15:47,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 01:15:47,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 01:15:47,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 01:15:47,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 01:15:47,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 01:15:47,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 01:15:47,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 01:15:47,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 01:15:47,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 01:15:47,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 01:15:47,571 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 01:15:47,571 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 01:15:47,572 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 01:15:47,573 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 01:15:47,573 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 01:15:47,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 01:15:47,574 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 01:15:47,575 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 01:15:47,576 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 01:15:47,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 01:15:47,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 01:15:47,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 01:15:47,577 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 01:15:47,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 01:15:47,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 01:15:47,579 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 01:15:47,580 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 [2023-03-31 01:15:47,609 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 01:15:47,610 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 01:15:47,610 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 01:15:47,610 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 01:15:47,612 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 01:15:47,612 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 01:15:47,612 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 01:15:47,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 01:15:47,613 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 01:15:47,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 01:15:47,614 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 01:15:47,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 01:15:47,614 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 01:15:47,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 01:15:47,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 01:15:47,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 01:15:47,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 01:15:47,614 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 01:15:47,615 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 01:15:47,615 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 01:15:47,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 01:15:47,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 01:15:47,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 01:15:47,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 01:15:47,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:15:47,615 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 01:15:47,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 01:15:47,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 01:15:47,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 01:15:47,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 01:15:47,616 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 01:15:47,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 01:15:47,616 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 01:15:47,616 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 01:15:47,617 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 01:15:47,617 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 01:15:47,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 01:15:47,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 01:15:47,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 01:15:47,885 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 01:15:47,886 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 01:15:47,887 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c [2023-03-31 01:15:49,110 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 01:15:49,336 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 01:15:49,337 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c [2023-03-31 01:15:49,353 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f96a012b6/0fde273a7bbf4f6d9de37a4a6f031077/FLAG7da66cf79 [2023-03-31 01:15:49,369 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f96a012b6/0fde273a7bbf4f6d9de37a4a6f031077 [2023-03-31 01:15:49,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 01:15:49,372 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 01:15:49,373 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 01:15:49,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 01:15:49,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 01:15:49,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:15:49" (1/1) ... [2023-03-31 01:15:49,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ca24385 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:15:49, skipping insertion in model container [2023-03-31 01:15:49,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:15:49" (1/1) ... [2023-03-31 01:15:49,388 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 01:15:49,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 01:15:49,618 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c[11718,11731] [2023-03-31 01:15:49,685 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:15:49,702 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 01:15:49,776 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c[11718,11731] [2023-03-31 01:15:49,804 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:15:49,820 INFO L208 MainTranslator]: Completed translation [2023-03-31 01:15:49,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:15:49 WrapperNode [2023-03-31 01:15:49,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 01:15:49,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 01:15:49,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 01:15:49,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 01:15:49,834 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:15:49" (1/1) ... [2023-03-31 01:15:49,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:15:49" (1/1) ... [2023-03-31 01:15:49,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:15:49" (1/1) ... [2023-03-31 01:15:49,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:15:49" (1/1) ... [2023-03-31 01:15:49,880 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:15:49" (1/1) ... [2023-03-31 01:15:49,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:15:49" (1/1) ... [2023-03-31 01:15:49,902 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:15:49" (1/1) ... [2023-03-31 01:15:49,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:15:49" (1/1) ... [2023-03-31 01:15:49,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 01:15:49,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 01:15:49,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 01:15:49,911 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 01:15:49,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:15:49" (1/1) ... [2023-03-31 01:15:49,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:15:49,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:15:49,938 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) [2023-03-31 01:15:49,940 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 [2023-03-31 01:15:49,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 01:15:49,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 01:15:49,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-03-31 01:15:49,979 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 01:15:49,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2023-03-31 01:15:49,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-03-31 01:15:49,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-03-31 01:15:49,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-03-31 01:15:49,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-03-31 01:15:49,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-03-31 01:15:49,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-03-31 01:15:49,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-03-31 01:15:49,980 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-03-31 01:15:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-03-31 01:15:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-03-31 01:15:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-03-31 01:15:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 01:15:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-03-31 01:15:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-03-31 01:15:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-03-31 01:15:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-03-31 01:15:49,982 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2023-03-31 01:15:49,982 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-03-31 01:15:49,982 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-03-31 01:15:49,982 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-03-31 01:15:49,982 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-03-31 01:15:49,982 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-03-31 01:15:49,982 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-03-31 01:15:49,982 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-03-31 01:15:49,982 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-03-31 01:15:49,983 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-03-31 01:15:49,983 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-03-31 01:15:49,983 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-03-31 01:15:49,983 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-03-31 01:15:49,983 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-03-31 01:15:49,983 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-03-31 01:15:49,983 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-03-31 01:15:49,983 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-03-31 01:15:49,984 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-03-31 01:15:49,984 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-03-31 01:15:49,984 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-03-31 01:15:49,984 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-03-31 01:15:49,984 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 01:15:49,984 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 01:15:49,984 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 01:15:49,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 01:15:49,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 01:15:49,985 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-03-31 01:15:49,985 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-03-31 01:15:49,985 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-03-31 01:15:49,985 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-03-31 01:15:49,985 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2023-03-31 01:15:49,985 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 01:15:49,985 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 01:15:49,985 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-03-31 01:15:49,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 01:15:49,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 01:15:49,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 01:15:49,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 01:15:49,986 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-03-31 01:15:49,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 01:15:49,986 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-03-31 01:15:49,986 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-03-31 01:15:49,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 01:15:49,987 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-03-31 01:15:49,987 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-03-31 01:15:49,987 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-03-31 01:15:49,987 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-03-31 01:15:49,987 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-03-31 01:15:49,987 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-03-31 01:15:49,988 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-03-31 01:15:49,988 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-03-31 01:15:49,988 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-03-31 01:15:49,988 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-03-31 01:15:49,988 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-03-31 01:15:49,988 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-03-31 01:15:49,988 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-03-31 01:15:49,988 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-03-31 01:15:49,988 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-03-31 01:15:49,989 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 01:15:49,989 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-03-31 01:15:49,989 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-03-31 01:15:49,989 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-03-31 01:15:49,990 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-03-31 01:15:49,990 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-03-31 01:15:49,990 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-03-31 01:15:49,990 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-03-31 01:15:49,990 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-03-31 01:15:49,990 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-03-31 01:15:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-03-31 01:15:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-03-31 01:15:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-03-31 01:15:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-03-31 01:15:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2023-03-31 01:15:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-03-31 01:15:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 01:15:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 01:15:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 01:15:50,148 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 01:15:50,151 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 01:15:50,667 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 01:15:50,674 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 01:15:50,675 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-03-31 01:15:50,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:15:50 BoogieIcfgContainer [2023-03-31 01:15:50,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 01:15:50,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 01:15:50,679 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 01:15:50,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 01:15:50,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 01:15:49" (1/3) ... [2023-03-31 01:15:50,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c6aca4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:15:50, skipping insertion in model container [2023-03-31 01:15:50,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:15:49" (2/3) ... [2023-03-31 01:15:50,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c6aca4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:15:50, skipping insertion in model container [2023-03-31 01:15:50,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:15:50" (3/3) ... [2023-03-31 01:15:50,684 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product48.cil.c [2023-03-31 01:15:50,700 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 01:15:50,700 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 01:15:50,746 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 01:15:50,751 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;@6a6384e1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 01:15:50,751 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 01:15:50,755 INFO L276 IsEmpty]: Start isEmpty. Operand has 186 states, 102 states have (on average 1.2941176470588236) internal successors, (132), 118 states have internal predecessors, (132), 50 states have call successors, (50), 31 states have call predecessors, (50), 31 states have return successors, (50), 45 states have call predecessors, (50), 50 states have call successors, (50) [2023-03-31 01:15:50,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-03-31 01:15:50,770 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:15:50,771 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:15:50,771 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:15:50,776 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:15:50,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1544541617, now seen corresponding path program 1 times [2023-03-31 01:15:50,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:15:50,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683658115] [2023-03-31 01:15:50,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:15:50,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:15:50,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:51,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:15:51,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:51,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:15:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:51,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:15:51,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:51,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:15:51,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:51,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:15:51,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:51,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-03-31 01:15:51,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:51,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-03-31 01:15:51,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:51,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:15:51,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:15:51,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683658115] [2023-03-31 01:15:51,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683658115] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:15:51,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:15:51,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-03-31 01:15:51,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776943581] [2023-03-31 01:15:51,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:15:51,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-31 01:15:51,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:15:51,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-31 01:15:51,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-31 01:15:51,081 INFO L87 Difference]: Start difference. First operand has 186 states, 102 states have (on average 1.2941176470588236) internal successors, (132), 118 states have internal predecessors, (132), 50 states have call successors, (50), 31 states have call predecessors, (50), 31 states have return successors, (50), 45 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-03-31 01:15:51,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:15:51,727 INFO L93 Difference]: Finished difference Result 332 states and 431 transitions. [2023-03-31 01:15:51,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-31 01:15:51,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 46 [2023-03-31 01:15:51,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:15:51,740 INFO L225 Difference]: With dead ends: 332 [2023-03-31 01:15:51,740 INFO L226 Difference]: Without dead ends: 180 [2023-03-31 01:15:51,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-31 01:15:51,747 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 100 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-03-31 01:15:51,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 24 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-03-31 01:15:51,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-03-31 01:15:51,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 143. [2023-03-31 01:15:51,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 83 states have (on average 1.2409638554216869) internal successors, (103), 96 states have internal predecessors, (103), 35 states have call successors, (35), 29 states have call predecessors, (35), 24 states have return successors, (30), 25 states have call predecessors, (30), 30 states have call successors, (30) [2023-03-31 01:15:51,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 168 transitions. [2023-03-31 01:15:51,814 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 168 transitions. Word has length 46 [2023-03-31 01:15:51,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:15:51,814 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 168 transitions. [2023-03-31 01:15:51,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-03-31 01:15:51,815 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 168 transitions. [2023-03-31 01:15:51,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-03-31 01:15:51,817 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:15:51,817 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:15:51,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 01:15:51,818 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:15:51,819 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:15:51,819 INFO L85 PathProgramCache]: Analyzing trace with hash 527979141, now seen corresponding path program 1 times [2023-03-31 01:15:51,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:15:51,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032341667] [2023-03-31 01:15:51,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:15:51,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:15:51,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:51,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:15:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:51,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:15:51,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:51,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:15:51,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:51,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:15:51,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:51,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:15:51,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:51,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-03-31 01:15:51,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:51,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-03-31 01:15:51,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:51,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:15:51,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:15:51,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032341667] [2023-03-31 01:15:51,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032341667] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:15:51,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:15:51,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-03-31 01:15:51,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021607021] [2023-03-31 01:15:51,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:15:51,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-31 01:15:51,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:15:51,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-31 01:15:51,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-03-31 01:15:51,943 INFO L87 Difference]: Start difference. First operand 143 states and 168 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-03-31 01:15:52,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:15:52,425 INFO L93 Difference]: Finished difference Result 255 states and 310 transitions. [2023-03-31 01:15:52,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-03-31 01:15:52,425 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 47 [2023-03-31 01:15:52,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:15:52,433 INFO L225 Difference]: With dead ends: 255 [2023-03-31 01:15:52,434 INFO L226 Difference]: Without dead ends: 164 [2023-03-31 01:15:52,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-03-31 01:15:52,436 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 110 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-03-31 01:15:52,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 31 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-03-31 01:15:52,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-03-31 01:15:52,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 134. [2023-03-31 01:15:52,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 77 states have (on average 1.2467532467532467) internal successors, (96), 90 states have internal predecessors, (96), 32 states have call successors, (32), 28 states have call predecessors, (32), 24 states have return successors, (28), 23 states have call predecessors, (28), 28 states have call successors, (28) [2023-03-31 01:15:52,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 156 transitions. [2023-03-31 01:15:52,477 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 156 transitions. Word has length 47 [2023-03-31 01:15:52,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:15:52,477 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 156 transitions. [2023-03-31 01:15:52,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-03-31 01:15:52,479 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 156 transitions. [2023-03-31 01:15:52,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-03-31 01:15:52,486 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:15:52,486 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] [2023-03-31 01:15:52,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 01:15:52,487 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:15:52,487 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:15:52,487 INFO L85 PathProgramCache]: Analyzing trace with hash -604557063, now seen corresponding path program 1 times [2023-03-31 01:15:52,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:15:52,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353562087] [2023-03-31 01:15:52,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:15:52,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:15:52,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:52,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:15:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:52,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:15:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:52,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:15:52,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:52,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:15:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:52,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:15:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:52,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-03-31 01:15:52,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:52,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-03-31 01:15:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:52,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:15:52,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:15:52,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353562087] [2023-03-31 01:15:52,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353562087] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:15:52,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:15:52,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-03-31 01:15:52,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413323486] [2023-03-31 01:15:52,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:15:52,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-31 01:15:52,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:15:52,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-31 01:15:52,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-03-31 01:15:52,771 INFO L87 Difference]: Start difference. First operand 134 states and 156 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-03-31 01:15:53,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:15:53,768 INFO L93 Difference]: Finished difference Result 461 states and 569 transitions. [2023-03-31 01:15:53,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 01:15:53,769 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 52 [2023-03-31 01:15:53,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:15:53,799 INFO L225 Difference]: With dead ends: 461 [2023-03-31 01:15:53,799 INFO L226 Difference]: Without dead ends: 351 [2023-03-31 01:15:53,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-03-31 01:15:53,801 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 439 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-03-31 01:15:53,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 79 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-03-31 01:15:53,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-03-31 01:15:53,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 282. [2023-03-31 01:15:53,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 169 states have (on average 1.2840236686390532) internal successors, (217), 194 states have internal predecessors, (217), 63 states have call successors, (63), 55 states have call predecessors, (63), 49 states have return successors, (60), 47 states have call predecessors, (60), 59 states have call successors, (60) [2023-03-31 01:15:53,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 340 transitions. [2023-03-31 01:15:53,862 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 340 transitions. Word has length 52 [2023-03-31 01:15:53,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:15:53,863 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 340 transitions. [2023-03-31 01:15:53,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-03-31 01:15:53,863 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 340 transitions. [2023-03-31 01:15:53,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-03-31 01:15:53,864 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:15:53,865 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:15:53,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 01:15:53,865 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:15:53,865 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:15:53,866 INFO L85 PathProgramCache]: Analyzing trace with hash 528773653, now seen corresponding path program 1 times [2023-03-31 01:15:53,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:15:53,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521857109] [2023-03-31 01:15:53,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:15:53,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:15:53,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:54,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:15:54,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:54,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:15:54,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:54,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:15:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:54,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:15:54,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:54,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:15:54,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:54,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-03-31 01:15:54,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:54,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-03-31 01:15:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:54,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-03-31 01:15:54,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:54,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:15:54,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:15:54,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521857109] [2023-03-31 01:15:54,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521857109] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:15:54,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:15:54,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-03-31 01:15:54,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629211899] [2023-03-31 01:15:54,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:15:54,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-03-31 01:15:54,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:15:54,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-03-31 01:15:54,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-03-31 01:15:54,175 INFO L87 Difference]: Start difference. First operand 282 states and 340 transitions. Second operand has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (14), 6 states have call predecessors, (14), 4 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-03-31 01:15:55,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:15:55,539 INFO L93 Difference]: Finished difference Result 1153 states and 1576 transitions. [2023-03-31 01:15:55,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-03-31 01:15:55,540 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (14), 6 states have call predecessors, (14), 4 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 57 [2023-03-31 01:15:55,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:15:55,546 INFO L225 Difference]: With dead ends: 1153 [2023-03-31 01:15:55,546 INFO L226 Difference]: Without dead ends: 895 [2023-03-31 01:15:55,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2023-03-31 01:15:55,548 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 403 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 1555 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 1751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 1555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-03-31 01:15:55,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 154 Invalid, 1751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 1555 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-03-31 01:15:55,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2023-03-31 01:15:55,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 794. [2023-03-31 01:15:55,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 476 states have (on average 1.2563025210084033) internal successors, (598), 549 states have internal predecessors, (598), 169 states have call successors, (169), 138 states have call predecessors, (169), 148 states have return successors, (239), 139 states have call predecessors, (239), 165 states have call successors, (239) [2023-03-31 01:15:55,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1006 transitions. [2023-03-31 01:15:55,667 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1006 transitions. Word has length 57 [2023-03-31 01:15:55,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:15:55,667 INFO L495 AbstractCegarLoop]: Abstraction has 794 states and 1006 transitions. [2023-03-31 01:15:55,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (14), 6 states have call predecessors, (14), 4 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-03-31 01:15:55,668 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1006 transitions. [2023-03-31 01:15:55,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-03-31 01:15:55,670 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:15:55,670 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:15:55,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 01:15:55,670 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:15:55,670 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:15:55,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1706397531, now seen corresponding path program 1 times [2023-03-31 01:15:55,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:15:55,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809668629] [2023-03-31 01:15:55,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:15:55,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:15:55,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:55,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:15:55,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:55,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:15:55,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:55,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:15:55,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:55,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:15:55,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:55,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:15:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:55,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-03-31 01:15:55,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:55,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-03-31 01:15:55,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:55,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-03-31 01:15:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:55,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-03-31 01:15:55,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:55,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:15:55,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:15:55,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809668629] [2023-03-31 01:15:55,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809668629] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:15:55,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:15:55,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-03-31 01:15:55,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301893426] [2023-03-31 01:15:55,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:15:55,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 01:15:55,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:15:55,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 01:15:55,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-03-31 01:15:55,793 INFO L87 Difference]: Start difference. First operand 794 states and 1006 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-03-31 01:15:56,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:15:56,446 INFO L93 Difference]: Finished difference Result 1951 states and 2621 transitions. [2023-03-31 01:15:56,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-03-31 01:15:56,446 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 61 [2023-03-31 01:15:56,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:15:56,453 INFO L225 Difference]: With dead ends: 1951 [2023-03-31 01:15:56,453 INFO L226 Difference]: Without dead ends: 1181 [2023-03-31 01:15:56,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-03-31 01:15:56,458 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 286 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-03-31 01:15:56,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 63 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-03-31 01:15:56,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2023-03-31 01:15:56,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 1090. [2023-03-31 01:15:56,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1090 states, 667 states have (on average 1.2128935532233882) internal successors, (809), 728 states have internal predecessors, (809), 205 states have call successors, (205), 183 states have call predecessors, (205), 217 states have return successors, (338), 216 states have call predecessors, (338), 201 states have call successors, (338) [2023-03-31 01:15:56,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 1352 transitions. [2023-03-31 01:15:56,586 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 1352 transitions. Word has length 61 [2023-03-31 01:15:56,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:15:56,587 INFO L495 AbstractCegarLoop]: Abstraction has 1090 states and 1352 transitions. [2023-03-31 01:15:56,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-03-31 01:15:56,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 1352 transitions. [2023-03-31 01:15:56,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-03-31 01:15:56,589 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:15:56,589 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:15:56,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 01:15:56,589 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:15:56,590 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:15:56,590 INFO L85 PathProgramCache]: Analyzing trace with hash -172890570, now seen corresponding path program 1 times [2023-03-31 01:15:56,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:15:56,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551878083] [2023-03-31 01:15:56,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:15:56,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:15:56,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:56,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:15:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:56,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:15:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:56,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:15:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:56,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:15:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:56,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:15:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:56,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:15:56,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:56,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:15:56,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:56,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-03-31 01:15:56,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:56,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:15:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:56,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:15:56,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:56,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-03-31 01:15:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:56,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-03-31 01:15:56,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:56,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-03-31 01:15:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:56,846 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-03-31 01:15:56,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:15:56,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551878083] [2023-03-31 01:15:56,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551878083] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:15:56,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677022092] [2023-03-31 01:15:56,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:15:56,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:15:56,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:15:56,853 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) [2023-03-31 01:15:56,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-03-31 01:15:56,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:15:56,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 15 conjunts are in the unsatisfiable core [2023-03-31 01:15:56,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:15:57,233 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 01:15:57,233 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 01:15:57,520 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-03-31 01:15:57,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [677022092] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 01:15:57,521 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 01:15:57,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 8] total 18 [2023-03-31 01:15:57,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34691018] [2023-03-31 01:15:57,521 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 01:15:57,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-03-31 01:15:57,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:15:57,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-03-31 01:15:57,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2023-03-31 01:15:57,524 INFO L87 Difference]: Start difference. First operand 1090 states and 1352 transitions. Second operand has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 12 states have internal predecessors, (105), 7 states have call successors, (46), 12 states have call predecessors, (46), 11 states have return successors, (34), 8 states have call predecessors, (34), 7 states have call successors, (34) [2023-03-31 01:16:02,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:16:02,275 INFO L93 Difference]: Finished difference Result 2990 states and 3910 transitions. [2023-03-31 01:16:02,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2023-03-31 01:16:02,275 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 12 states have internal predecessors, (105), 7 states have call successors, (46), 12 states have call predecessors, (46), 11 states have return successors, (34), 8 states have call predecessors, (34), 7 states have call successors, (34) Word has length 89 [2023-03-31 01:16:02,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:16:02,288 INFO L225 Difference]: With dead ends: 2990 [2023-03-31 01:16:02,289 INFO L226 Difference]: Without dead ends: 2209 [2023-03-31 01:16:02,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 220 SyntacticMatches, 8 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3207 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1622, Invalid=7690, Unknown=0, NotChecked=0, Total=9312 [2023-03-31 01:16:02,301 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 2104 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 3488 mSolverCounterSat, 1493 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2124 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 4981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1493 IncrementalHoareTripleChecker+Valid, 3488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-03-31 01:16:02,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2124 Valid, 280 Invalid, 4981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1493 Valid, 3488 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-03-31 01:16:02,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2209 states. [2023-03-31 01:16:02,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2209 to 1917. [2023-03-31 01:16:02,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1917 states, 1196 states have (on average 1.2081939799331103) internal successors, (1445), 1288 states have internal predecessors, (1445), 343 states have call successors, (343), 325 states have call predecessors, (343), 377 states have return successors, (546), 355 states have call predecessors, (546), 339 states have call successors, (546) [2023-03-31 01:16:02,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1917 states to 1917 states and 2334 transitions. [2023-03-31 01:16:02,522 INFO L78 Accepts]: Start accepts. Automaton has 1917 states and 2334 transitions. Word has length 89 [2023-03-31 01:16:02,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:16:02,523 INFO L495 AbstractCegarLoop]: Abstraction has 1917 states and 2334 transitions. [2023-03-31 01:16:02,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.833333333333333) internal successors, (105), 12 states have internal predecessors, (105), 7 states have call successors, (46), 12 states have call predecessors, (46), 11 states have return successors, (34), 8 states have call predecessors, (34), 7 states have call successors, (34) [2023-03-31 01:16:02,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1917 states and 2334 transitions. [2023-03-31 01:16:02,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-03-31 01:16:02,532 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:16:02,533 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:16:02,541 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-03-31 01:16:02,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-03-31 01:16:02,741 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:16:02,742 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:16:02,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1738902815, now seen corresponding path program 1 times [2023-03-31 01:16:02,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:16:02,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028589979] [2023-03-31 01:16:02,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:16:02,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:16:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:02,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:16:02,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:02,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:16:02,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:02,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:16:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:02,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:16:02,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:02,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:16:02,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:02,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-03-31 01:16:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:02,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:16:02,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:02,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:16:02,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:02,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:16:02,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:02,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:16:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:02,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:16:02,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:02,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:16:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:02,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:16:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:02,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:16:02,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:02,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-03-31 01:16:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:02,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:16:02,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:02,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-03-31 01:16:02,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:02,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-03-31 01:16:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:02,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:16:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:02,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:16:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:02,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 01:16:02,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:02,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:16:02,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:02,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-03-31 01:16:02,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:02,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-03-31 01:16:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:02,977 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-03-31 01:16:02,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:16:02,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028589979] [2023-03-31 01:16:02,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028589979] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:16:02,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392059883] [2023-03-31 01:16:02,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:16:02,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:16:02,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:16:02,979 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) [2023-03-31 01:16:02,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-03-31 01:16:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:03,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 11 conjunts are in the unsatisfiable core [2023-03-31 01:16:03,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:16:03,151 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-03-31 01:16:03,151 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 01:16:03,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392059883] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:16:03,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 01:16:03,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 10 [2023-03-31 01:16:03,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680332679] [2023-03-31 01:16:03,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:16:03,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 01:16:03,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:16:03,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 01:16:03,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-03-31 01:16:03,154 INFO L87 Difference]: Start difference. First operand 1917 states and 2334 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2023-03-31 01:16:03,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:16:03,377 INFO L93 Difference]: Finished difference Result 3834 states and 4883 transitions. [2023-03-31 01:16:03,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-31 01:16:03,378 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 147 [2023-03-31 01:16:03,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:16:03,388 INFO L225 Difference]: With dead ends: 3834 [2023-03-31 01:16:03,388 INFO L226 Difference]: Without dead ends: 1987 [2023-03-31 01:16:03,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 193 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-03-31 01:16:03,394 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 4 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 01:16:03,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 763 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 01:16:03,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2023-03-31 01:16:03,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1967. [2023-03-31 01:16:03,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1967 states, 1236 states have (on average 1.2014563106796117) internal successors, (1485), 1328 states have internal predecessors, (1485), 343 states have call successors, (343), 325 states have call predecessors, (343), 387 states have return successors, (560), 365 states have call predecessors, (560), 339 states have call successors, (560) [2023-03-31 01:16:03,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1967 states to 1967 states and 2388 transitions. [2023-03-31 01:16:03,586 INFO L78 Accepts]: Start accepts. Automaton has 1967 states and 2388 transitions. Word has length 147 [2023-03-31 01:16:03,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:16:03,587 INFO L495 AbstractCegarLoop]: Abstraction has 1967 states and 2388 transitions. [2023-03-31 01:16:03,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2023-03-31 01:16:03,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1967 states and 2388 transitions. [2023-03-31 01:16:03,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-03-31 01:16:03,592 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:16:03,592 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:16:03,601 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-03-31 01:16:03,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-03-31 01:16:03,799 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:16:03,799 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:16:03,799 INFO L85 PathProgramCache]: Analyzing trace with hash -137831709, now seen corresponding path program 1 times [2023-03-31 01:16:03,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:16:03,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396182716] [2023-03-31 01:16:03,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:16:03,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:16:03,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:03,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:16:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:03,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:16:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:03,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:16:03,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:03,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:16:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:03,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:16:03,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:03,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-03-31 01:16:03,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:03,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:16:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:03,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:16:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:03,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:16:03,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:03,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:16:04,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:04,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:16:04,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:04,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:16:04,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:04,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:16:04,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:04,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:16:04,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:04,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-03-31 01:16:04,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:04,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:16:04,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:04,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-03-31 01:16:04,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:04,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-03-31 01:16:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:04,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:16:04,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:04,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:16:04,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:04,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 01:16:04,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:04,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:16:04,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:04,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-03-31 01:16:04,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:04,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-03-31 01:16:04,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:04,048 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-03-31 01:16:04,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:16:04,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396182716] [2023-03-31 01:16:04,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396182716] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:16:04,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577177659] [2023-03-31 01:16:04,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:16:04,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:16:04,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:16:04,050 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) [2023-03-31 01:16:04,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-03-31 01:16:04,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:04,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 5 conjunts are in the unsatisfiable core [2023-03-31 01:16:04,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:16:04,219 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-03-31 01:16:04,219 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 01:16:04,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577177659] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:16:04,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 01:16:04,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 12 [2023-03-31 01:16:04,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028363550] [2023-03-31 01:16:04,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:16:04,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-03-31 01:16:04,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:16:04,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-03-31 01:16:04,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-03-31 01:16:04,222 INFO L87 Difference]: Start difference. First operand 1967 states and 2388 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2023-03-31 01:16:04,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:16:04,404 INFO L93 Difference]: Finished difference Result 3445 states and 4298 transitions. [2023-03-31 01:16:04,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-03-31 01:16:04,405 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 147 [2023-03-31 01:16:04,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:16:04,414 INFO L225 Difference]: With dead ends: 3445 [2023-03-31 01:16:04,414 INFO L226 Difference]: Without dead ends: 1548 [2023-03-31 01:16:04,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-03-31 01:16:04,421 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 3 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 01:16:04,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 611 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 01:16:04,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2023-03-31 01:16:04,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1502. [2023-03-31 01:16:04,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 953 states have (on average 1.2025183630640084) internal successors, (1146), 1021 states have internal predecessors, (1146), 268 states have call successors, (268), 260 states have call predecessors, (268), 280 states have return successors, (409), 267 states have call predecessors, (409), 264 states have call successors, (409) [2023-03-31 01:16:04,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 1823 transitions. [2023-03-31 01:16:04,583 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 1823 transitions. Word has length 147 [2023-03-31 01:16:04,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:16:04,584 INFO L495 AbstractCegarLoop]: Abstraction has 1502 states and 1823 transitions. [2023-03-31 01:16:04,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2023-03-31 01:16:04,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 1823 transitions. [2023-03-31 01:16:04,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-03-31 01:16:04,587 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:16:04,587 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:16:04,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-03-31 01:16:04,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:16:04,795 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:16:04,795 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:16:04,796 INFO L85 PathProgramCache]: Analyzing trace with hash 701267338, now seen corresponding path program 1 times [2023-03-31 01:16:04,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:16:04,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95938870] [2023-03-31 01:16:04,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:16:04,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:16:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:04,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:16:04,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:04,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:16:04,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:04,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:16:04,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:04,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:16:04,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:04,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:16:04,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:04,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:16:04,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:05,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:16:05,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:05,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:16:05,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:05,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:16:05,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:05,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:16:05,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:05,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:16:05,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:05,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:16:05,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:05,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:16:05,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:05,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:16:05,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:05,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:16:05,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:05,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-03-31 01:16:05,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:05,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:16:05,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:05,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-03-31 01:16:05,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:05,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-03-31 01:16:05,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:05,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:16:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:05,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:16:05,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:05,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 01:16:05,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:05,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:16:05,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:05,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-03-31 01:16:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:05,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-03-31 01:16:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:05,108 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-03-31 01:16:05,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:16:05,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95938870] [2023-03-31 01:16:05,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95938870] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:16:05,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121508825] [2023-03-31 01:16:05,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:16:05,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:16:05,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:16:05,110 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) [2023-03-31 01:16:05,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-03-31 01:16:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:05,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 11 conjunts are in the unsatisfiable core [2023-03-31 01:16:05,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:16:05,420 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 17 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:16:05,420 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 01:16:05,739 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-03-31 01:16:05,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2121508825] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 01:16:05,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 01:16:05,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 20 [2023-03-31 01:16:05,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565490637] [2023-03-31 01:16:05,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 01:16:05,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-03-31 01:16:05,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:16:05,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-03-31 01:16:05,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2023-03-31 01:16:05,742 INFO L87 Difference]: Start difference. First operand 1502 states and 1823 transitions. Second operand has 20 states, 20 states have (on average 6.95) internal successors, (139), 12 states have internal predecessors, (139), 5 states have call successors, (56), 11 states have call predecessors, (56), 9 states have return successors, (41), 7 states have call predecessors, (41), 5 states have call successors, (41) [2023-03-31 01:16:07,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:16:07,669 INFO L93 Difference]: Finished difference Result 3099 states and 4013 transitions. [2023-03-31 01:16:07,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-03-31 01:16:07,670 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.95) internal successors, (139), 12 states have internal predecessors, (139), 5 states have call successors, (56), 11 states have call predecessors, (56), 9 states have return successors, (41), 7 states have call predecessors, (41), 5 states have call successors, (41) Word has length 151 [2023-03-31 01:16:07,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:16:07,680 INFO L225 Difference]: With dead ends: 3099 [2023-03-31 01:16:07,680 INFO L226 Difference]: Without dead ends: 1780 [2023-03-31 01:16:07,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 346 SyntacticMatches, 10 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 487 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=463, Invalid=1343, Unknown=0, NotChecked=0, Total=1806 [2023-03-31 01:16:07,685 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 954 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 2022 mSolverCounterSat, 684 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 2706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 684 IncrementalHoareTripleChecker+Valid, 2022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-03-31 01:16:07,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 278 Invalid, 2706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [684 Valid, 2022 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-03-31 01:16:07,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1780 states. [2023-03-31 01:16:07,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1780 to 1376. [2023-03-31 01:16:07,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1376 states, 865 states have (on average 1.1849710982658959) internal successors, (1025), 930 states have internal predecessors, (1025), 249 states have call successors, (249), 241 states have call predecessors, (249), 261 states have return successors, (387), 244 states have call predecessors, (387), 245 states have call successors, (387) [2023-03-31 01:16:07,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 1661 transitions. [2023-03-31 01:16:07,837 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 1661 transitions. Word has length 151 [2023-03-31 01:16:07,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:16:07,838 INFO L495 AbstractCegarLoop]: Abstraction has 1376 states and 1661 transitions. [2023-03-31 01:16:07,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.95) internal successors, (139), 12 states have internal predecessors, (139), 5 states have call successors, (56), 11 states have call predecessors, (56), 9 states have return successors, (41), 7 states have call predecessors, (41), 5 states have call successors, (41) [2023-03-31 01:16:07,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 1661 transitions. [2023-03-31 01:16:07,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-03-31 01:16:07,842 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:16:07,843 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:16:07,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-03-31 01:16:08,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:16:08,049 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:16:08,050 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:16:08,050 INFO L85 PathProgramCache]: Analyzing trace with hash 945962883, now seen corresponding path program 2 times [2023-03-31 01:16:08,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:16:08,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792092147] [2023-03-31 01:16:08,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:16:08,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:16:08,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-31 01:16:08,078 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-03-31 01:16:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-31 01:16:08,151 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-03-31 01:16:08,152 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-03-31 01:16:08,152 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 01:16:08,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-03-31 01:16:08,160 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:16:08,166 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 01:16:08,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 01:16:08 BoogieIcfgContainer [2023-03-31 01:16:08,263 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 01:16:08,263 INFO L158 Benchmark]: Toolchain (without parser) took 18890.77ms. Allocated memory was 294.6MB in the beginning and 533.7MB in the end (delta: 239.1MB). Free memory was 247.9MB in the beginning and 226.8MB in the end (delta: 21.1MB). Peak memory consumption was 261.5MB. Max. memory is 8.0GB. [2023-03-31 01:16:08,263 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 186.6MB. Free memory is still 138.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 01:16:08,263 INFO L158 Benchmark]: CACSL2BoogieTranslator took 447.16ms. Allocated memory is still 294.6MB. Free memory was 247.9MB in the beginning and 229.3MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-03-31 01:16:08,263 INFO L158 Benchmark]: Boogie Preprocessor took 88.29ms. Allocated memory is still 294.6MB. Free memory was 229.3MB in the beginning and 225.8MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-03-31 01:16:08,264 INFO L158 Benchmark]: RCFGBuilder took 766.44ms. Allocated memory is still 294.6MB. Free memory was 225.8MB in the beginning and 257.5MB in the end (delta: -31.7MB). Peak memory consumption was 40.5MB. Max. memory is 8.0GB. [2023-03-31 01:16:08,264 INFO L158 Benchmark]: TraceAbstraction took 17584.19ms. Allocated memory was 294.6MB in the beginning and 533.7MB in the end (delta: 239.1MB). Free memory was 257.0MB in the beginning and 226.8MB in the end (delta: 30.2MB). Peak memory consumption was 269.3MB. Max. memory is 8.0GB. [2023-03-31 01:16:08,265 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 186.6MB. Free memory is still 138.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 447.16ms. Allocated memory is still 294.6MB. Free memory was 247.9MB in the beginning and 229.3MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 88.29ms. Allocated memory is still 294.6MB. Free memory was 229.3MB in the beginning and 225.8MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 766.44ms. Allocated memory is still 294.6MB. Free memory was 225.8MB in the beginning and 257.5MB in the end (delta: -31.7MB). Peak memory consumption was 40.5MB. Max. memory is 8.0GB. * TraceAbstraction took 17584.19ms. Allocated memory was 294.6MB in the beginning and 533.7MB in the end (delta: 239.1MB). Free memory was 257.0MB in the beginning and 226.8MB in the end (delta: 30.2MB). Peak memory consumption was 269.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 449]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L248] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L454] int cleanupTimeShifts = 4; [L566] int pumpRunning = 0; [L567] int systemActive = 1; [L784] int waterLevel = 1; [L785] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=55, \old(head)={49:54}, \old(methaneLevelCritical)=53, \old(pumpRunning)=57, \old(systemActive)=52, \old(waterLevel)=51, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L535] int retValue_acc ; [L536] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L540] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L541] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L542] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L973] int retValue_acc ; [L976] retValue_acc = 1 [L977] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L542] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L542] tmp = valid_product() [L544] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L546] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L547] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L526] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L879] int splverifierCounter ; [L880] int tmp ; [L881] int tmp___0 ; [L882] int tmp___1 ; [L883] int tmp___2 ; [L886] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L888] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L890] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L896] tmp = __VERIFIER_nondet_int() [L898] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L900] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L802] COND TRUE waterLevel < 2 [L803] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L900] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L906] tmp___0 = __VERIFIER_nondet_int() [L908] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L916] tmp___2 = __VERIFIER_nondet_int() [L918] COND FALSE !(\read(tmp___2)) [L924] tmp___1 = __VERIFIER_nondet_int() [L926] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L935] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L573] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L580] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L582] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L628] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L631] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L646] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L602] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L605] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L607] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L742] int retValue_acc ; [L743] int tmp ; [L744] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L748] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L864] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L867] COND FALSE !(waterLevel < 2) [L871] retValue_acc = 0 [L872] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L748] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L748] tmp = isHighWaterSensorDry() [L750] COND FALSE !(\read(tmp)) [L753] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L755] retValue_acc = tmp___0 [L756] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L607] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L607] tmp = isHighWaterLevel() [L609] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L611] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L661] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L665] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L686] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L690] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L823] int retValue_acc ; [L826] retValue_acc = methaneLevelCritical [L827] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L690] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L690] retValue_acc = isMethaneLevelCritical() [L692] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L665] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L665] tmp = isMethaneAlarm() [L667] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L671] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L656] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L671] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L611] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L646] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L582] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L588] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L54] int tmp ; [L55] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L59] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L855] int retValue_acc ; [L858] retValue_acc = waterLevel [L859] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L59] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L59] tmp = getWaterLevel() [L61] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L588] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L935] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L888] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L890] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L896] tmp = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L906] tmp___0 = __VERIFIER_nondet_int() [L908] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L916] tmp___2 = __VERIFIER_nondet_int() [L918] COND FALSE !(\read(tmp___2)) [L924] tmp___1 = __VERIFIER_nondet_int() [L926] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L935] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L573] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L575] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L790] COND TRUE waterLevel > 0 [L791] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L575] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L580] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L582] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L628] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L631] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L633] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L686] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L690] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L823] int retValue_acc ; [L826] retValue_acc = methaneLevelCritical [L827] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L690] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L690] retValue_acc = isMethaneLevelCritical() [L692] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L633] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L633] tmp = isMethaneAlarm() [L635] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L641] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L602] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L605] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L620] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L641] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L582] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L588] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L54] int tmp ; [L55] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L59] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L855] int retValue_acc ; [L858] retValue_acc = waterLevel [L859] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L59] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L59] tmp = getWaterLevel() [L61] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L588] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L935] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L888] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L890] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L896] tmp = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L906] tmp___0 = __VERIFIER_nondet_int() [L908] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L916] tmp___2 = __VERIFIER_nondet_int() [L918] COND FALSE !(\read(tmp___2)) [L924] tmp___1 = __VERIFIER_nondet_int() [L926] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L935] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L573] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L575] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L790] COND TRUE waterLevel > 0 [L791] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L575] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L580] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L582] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L628] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L631] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L633] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L686] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L690] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L823] int retValue_acc ; [L826] retValue_acc = methaneLevelCritical [L827] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L690] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L690] retValue_acc = isMethaneLevelCritical() [L692] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L633] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L633] tmp = isMethaneAlarm() [L635] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L641] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L602] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L605] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L620] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L641] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L582] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L588] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L54] int tmp ; [L55] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L59] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L855] int retValue_acc ; [L858] retValue_acc = waterLevel [L859] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L59] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L59] tmp = getWaterLevel() [L61] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L63] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L697] int retValue_acc ; [L700] retValue_acc = pumpRunning [L701] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L63] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L63] tmp___0 = isPumpRunning() [L65] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L67] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L449] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.4s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 11.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4522 SdHoareTripleChecker+Valid, 6.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4403 mSDsluCounter, 2283 SdHoareTripleChecker+Invalid, 5.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1851 mSDsCounter, 2879 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8959 IncrementalHoareTripleChecker+Invalid, 11838 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2879 mSolverCounterUnsat, 432 mSDtfsCounter, 8959 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1268 GetRequests, 1044 SyntacticMatches, 20 SemanticMatches, 204 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3842 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1967occurred in iteration=7, InterpolantAutomatonStates: 180, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 1090 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 1534 NumberOfCodeBlocks, 1534 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1556 ConstructedInterpolants, 0 QuantifiedInterpolants, 2910 SizeOfPredicates, 9 NumberOfNonLiveVariables, 1907 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 286/331 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! [2023-03-31 01:16:08,282 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...