/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 04:18:32,538 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 04:18:32,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 04:18:32,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 04:18:32,577 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 04:18:32,581 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 04:18:32,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 04:18:32,587 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 04:18:32,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 04:18:32,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 04:18:32,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 04:18:32,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 04:18:32,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 04:18:32,599 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 04:18:32,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 04:18:32,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 04:18:32,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 04:18:32,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 04:18:32,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 04:18:32,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 04:18:32,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 04:18:32,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 04:18:32,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 04:18:32,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 04:18:32,623 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 04:18:32,624 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 04:18:32,624 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 04:18:32,625 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 04:18:32,625 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 04:18:32,626 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 04:18:32,626 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 04:18:32,627 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 04:18:32,627 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 04:18:32,628 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 04:18:32,629 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 04:18:32,629 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 04:18:32,629 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 04:18:32,630 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 04:18:32,630 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 04:18:32,631 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 04:18:32,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 04:18:32,636 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 04:18:32,668 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 04:18:32,668 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 04:18:32,668 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 04:18:32,669 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 04:18:32,670 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 04:18:32,670 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 04:18:32,671 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 04:18:32,671 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 04:18:32,671 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 04:18:32,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 04:18:32,672 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 04:18:32,672 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 04:18:32,672 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 04:18:32,672 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 04:18:32,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 04:18:32,673 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 04:18:32,673 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 04:18:32,673 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 04:18:32,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 04:18:32,673 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 04:18:32,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 04:18:32,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 04:18:32,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 04:18:32,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 04:18:32,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:18:32,674 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 04:18:32,674 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 04:18:32,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 04:18:32,675 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 04:18:32,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 04:18:32,675 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 04:18:32,675 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 04:18:32,676 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 04:18:32,676 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 04:18:32,676 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 04:18:32,676 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 04:18:32,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 04:18:32,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 04:18:32,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 04:18:32,955 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 04:18:32,956 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 04:18:32,957 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c [2023-04-02 04:18:34,310 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 04:18:34,531 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 04:18:34,532 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c [2023-04-02 04:18:34,545 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/775932008/4623158c664541c4b432044eedeb646f/FLAG077835bf7 [2023-04-02 04:18:34,560 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/775932008/4623158c664541c4b432044eedeb646f [2023-04-02 04:18:34,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 04:18:34,564 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 04:18:34,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 04:18:34,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 04:18:34,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 04:18:34,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:18:34" (1/1) ... [2023-04-02 04:18:34,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5758a25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:34, skipping insertion in model container [2023-04-02 04:18:34,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:18:34" (1/1) ... [2023-04-02 04:18:34,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 04:18:34,621 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 04:18:34,759 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c[1605,1618] [2023-04-02 04:18:34,848 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:18:34,865 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 04:18:34,876 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c[1605,1618] [2023-04-02 04:18:34,922 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:18:34,937 INFO L208 MainTranslator]: Completed translation [2023-04-02 04:18:34,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:34 WrapperNode [2023-04-02 04:18:34,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 04:18:34,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 04:18:34,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 04:18:34,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 04:18:34,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:34" (1/1) ... [2023-04-02 04:18:34,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:34" (1/1) ... [2023-04-02 04:18:34,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:34" (1/1) ... [2023-04-02 04:18:34,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:34" (1/1) ... [2023-04-02 04:18:34,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:34" (1/1) ... [2023-04-02 04:18:34,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:34" (1/1) ... [2023-04-02 04:18:34,996 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:34" (1/1) ... [2023-04-02 04:18:34,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:34" (1/1) ... [2023-04-02 04:18:35,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 04:18:35,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 04:18:35,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 04:18:35,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 04:18:35,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:34" (1/1) ... [2023-04-02 04:18:35,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:18:35,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:18:35,050 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 04:18:35,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 04:18:35,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 04:18:35,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 04:18:35,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 04:18:35,099 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 04:18:35,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 04:18:35,099 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 04:18:35,099 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 04:18:35,099 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 04:18:35,099 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 04:18:35,099 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 04:18:35,099 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 04:18:35,099 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 04:18:35,100 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 04:18:35,100 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 04:18:35,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 04:18:35,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 04:18:35,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 04:18:35,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 04:18:35,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 04:18:35,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 04:18:35,100 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 04:18:35,100 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 04:18:35,100 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-02 04:18:35,101 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-04-02 04:18:35,101 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-02 04:18:35,101 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2023-04-02 04:18:35,101 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-02 04:18:35,101 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-02 04:18:35,101 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-02 04:18:35,101 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-02 04:18:35,101 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-02 04:18:35,101 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-02 04:18:35,101 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-02 04:18:35,101 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-02 04:18:35,102 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-02 04:18:35,102 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-02 04:18:35,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-02 04:18:35,102 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-02 04:18:35,102 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-02 04:18:35,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-02 04:18:35,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2023-04-02 04:18:35,102 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 04:18:35,102 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 04:18:35,102 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 04:18:35,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 04:18:35,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 04:18:35,103 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 04:18:35,103 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 04:18:35,103 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 04:18:35,103 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 04:18:35,103 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-02 04:18:35,103 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-02 04:18:35,104 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-02 04:18:35,104 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 04:18:35,105 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 04:18:35,105 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 04:18:35,105 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 04:18:35,105 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 04:18:35,105 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 04:18:35,106 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 04:18:35,106 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 04:18:35,106 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 04:18:35,106 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 04:18:35,106 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 04:18:35,106 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 04:18:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 04:18:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 04:18:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 04:18:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 04:18:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 04:18:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 04:18:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 04:18:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 04:18:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 04:18:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 04:18:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 04:18:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 04:18:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-02 04:18:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-02 04:18:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-02 04:18:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-02 04:18:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-02 04:18:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-02 04:18:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-02 04:18:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-02 04:18:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2023-04-02 04:18:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-02 04:18:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-02 04:18:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-02 04:18:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-04-02 04:18:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-02 04:18:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2023-04-02 04:18:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-02 04:18:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 04:18:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 04:18:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 04:18:35,311 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 04:18:35,313 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 04:18:35,902 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 04:18:35,919 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 04:18:35,919 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-02 04:18:35,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:18:35 BoogieIcfgContainer [2023-04-02 04:18:35,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 04:18:35,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 04:18:35,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 04:18:35,930 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 04:18:35,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 04:18:34" (1/3) ... [2023-04-02 04:18:35,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ceacf44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:18:35, skipping insertion in model container [2023-04-02 04:18:35,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:34" (2/3) ... [2023-04-02 04:18:35,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ceacf44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:18:35, skipping insertion in model container [2023-04-02 04:18:35,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:18:35" (3/3) ... [2023-04-02 04:18:35,933 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product47.cil.c [2023-04-02 04:18:35,949 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 04:18:35,950 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 04:18:35,994 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 04:18:35,999 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;@41cc60f3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 04:18:35,999 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 04:18:36,006 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 102 states have (on average 1.303921568627451) internal successors, (133), 117 states have internal predecessors, (133), 50 states have call successors, (50), 30 states have call predecessors, (50), 30 states have return successors, (50), 46 states have call predecessors, (50), 50 states have call successors, (50) [2023-04-02 04:18:36,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-04-02 04:18:36,016 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:18:36,016 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:18:36,017 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:18:36,021 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:18:36,021 INFO L85 PathProgramCache]: Analyzing trace with hash -747897832, now seen corresponding path program 1 times [2023-04-02 04:18:36,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:18:36,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400934497] [2023-04-02 04:18:36,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:18:36,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:18:36,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:36,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:18:36,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:36,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:18:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:36,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:18:36,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:36,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:18:36,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:36,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:18:36,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:36,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:18:36,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:36,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:18:36,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:36,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:18:36,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:36,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:18:36,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:18:36,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400934497] [2023-04-02 04:18:36,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400934497] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:18:36,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:18:36,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 04:18:36,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857536824] [2023-04-02 04:18:36,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:18:36,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 04:18:36,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:18:36,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 04:18:36,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 04:18:36,383 INFO L87 Difference]: Start difference. First operand has 185 states, 102 states have (on average 1.303921568627451) internal successors, (133), 117 states have internal predecessors, (133), 50 states have call successors, (50), 30 states have call predecessors, (50), 30 states have return successors, (50), 46 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:18:36,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:18:36,948 INFO L93 Difference]: Finished difference Result 329 states and 431 transitions. [2023-04-02 04:18:36,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 04:18:36,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 52 [2023-04-02 04:18:36,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:18:36,964 INFO L225 Difference]: With dead ends: 329 [2023-04-02 04:18:36,964 INFO L226 Difference]: Without dead ends: 178 [2023-04-02 04:18:36,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 04:18:36,971 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 104 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:18:36,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 23 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:18:36,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-04-02 04:18:37,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 142. [2023-04-02 04:18:37,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 83 states have (on average 1.2530120481927711) internal successors, (104), 95 states have internal predecessors, (104), 35 states have call successors, (35), 28 states have call predecessors, (35), 23 states have return successors, (30), 26 states have call predecessors, (30), 30 states have call successors, (30) [2023-04-02 04:18:37,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 169 transitions. [2023-04-02 04:18:37,034 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 169 transitions. Word has length 52 [2023-04-02 04:18:37,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:18:37,035 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 169 transitions. [2023-04-02 04:18:37,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:18:37,035 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 169 transitions. [2023-04-02 04:18:37,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-04-02 04:18:37,038 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:18:37,038 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:18:37,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 04:18:37,039 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:18:37,039 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:18:37,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1945340680, now seen corresponding path program 1 times [2023-04-02 04:18:37,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:18:37,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030175201] [2023-04-02 04:18:37,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:18:37,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:18:37,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:37,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:18:37,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:37,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:18:37,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:37,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:18:37,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:37,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:18:37,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:37,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:18:37,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:37,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:18:37,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:37,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 04:18:37,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:37,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 04:18:37,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:37,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:18:37,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:18:37,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030175201] [2023-04-02 04:18:37,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030175201] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:18:37,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:18:37,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 04:18:37,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175602106] [2023-04-02 04:18:37,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:18:37,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 04:18:37,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:18:37,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 04:18:37,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 04:18:37,164 INFO L87 Difference]: Start difference. First operand 142 states and 169 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:18:37,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:18:37,589 INFO L93 Difference]: Finished difference Result 256 states and 314 transitions. [2023-04-02 04:18:37,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 04:18:37,589 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 53 [2023-04-02 04:18:37,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:18:37,595 INFO L225 Difference]: With dead ends: 256 [2023-04-02 04:18:37,596 INFO L226 Difference]: Without dead ends: 162 [2023-04-02 04:18:37,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 04:18:37,605 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 114 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:18:37,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 31 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:18:37,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-04-02 04:18:37,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 133. [2023-04-02 04:18:37,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 77 states have (on average 1.2597402597402598) internal successors, (97), 89 states have internal predecessors, (97), 32 states have call successors, (32), 27 states have call predecessors, (32), 23 states have return successors, (28), 24 states have call predecessors, (28), 28 states have call successors, (28) [2023-04-02 04:18:37,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 157 transitions. [2023-04-02 04:18:37,646 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 157 transitions. Word has length 53 [2023-04-02 04:18:37,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:18:37,646 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 157 transitions. [2023-04-02 04:18:37,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:18:37,647 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 157 transitions. [2023-04-02 04:18:37,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-04-02 04:18:37,654 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:18:37,654 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:18:37,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 04:18:37,654 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:18:37,655 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:18:37,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1888627779, now seen corresponding path program 1 times [2023-04-02 04:18:37,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:18:37,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535665472] [2023-04-02 04:18:37,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:18:37,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:18:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:37,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:18:37,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:37,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:18:37,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:37,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:18:37,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:37,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:18:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:37,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:18:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:37,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:18:37,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:38,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:18:38,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:38,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 04:18:38,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:38,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:18:38,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:18:38,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535665472] [2023-04-02 04:18:38,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535665472] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:18:38,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:18:38,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:18:38,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629231053] [2023-04-02 04:18:38,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:18:38,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:18:38,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:18:38,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:18:38,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:18:38,006 INFO L87 Difference]: Start difference. First operand 133 states and 157 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-02 04:18:38,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:18:38,956 INFO L93 Difference]: Finished difference Result 461 states and 574 transitions. [2023-04-02 04:18:38,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 04:18:38,956 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 57 [2023-04-02 04:18:38,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:18:38,959 INFO L225 Difference]: With dead ends: 461 [2023-04-02 04:18:38,959 INFO L226 Difference]: Without dead ends: 352 [2023-04-02 04:18:38,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-04-02 04:18:38,961 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 356 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 996 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 04:18:38,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 108 Invalid, 1164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 996 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 04:18:38,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2023-04-02 04:18:39,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 290. [2023-04-02 04:18:39,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 175 states have (on average 1.2914285714285714) internal successors, (226), 199 states have internal predecessors, (226), 65 states have call successors, (65), 55 states have call predecessors, (65), 49 states have return successors, (62), 49 states have call predecessors, (62), 61 states have call successors, (62) [2023-04-02 04:18:39,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 353 transitions. [2023-04-02 04:18:39,035 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 353 transitions. Word has length 57 [2023-04-02 04:18:39,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:18:39,035 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 353 transitions. [2023-04-02 04:18:39,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-02 04:18:39,036 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 353 transitions. [2023-04-02 04:18:39,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-04-02 04:18:39,038 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:18:39,038 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:18:39,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 04:18:39,038 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:18:39,039 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:18:39,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1832004726, now seen corresponding path program 1 times [2023-04-02 04:18:39,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:18:39,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932279579] [2023-04-02 04:18:39,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:18:39,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:18:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:39,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:18:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:39,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:18:39,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:39,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:18:39,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:39,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:18:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:39,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:18:39,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:39,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:18:39,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:39,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:18:39,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:39,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 04:18:39,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:39,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:18:39,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:39,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:18:39,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:18:39,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932279579] [2023-04-02 04:18:39,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932279579] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:18:39,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:18:39,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:18:39,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319075260] [2023-04-02 04:18:39,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:18:39,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:18:39,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:18:39,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:18:39,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:18:39,321 INFO L87 Difference]: Start difference. First operand 290 states and 353 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 04:18:40,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:18:40,204 INFO L93 Difference]: Finished difference Result 898 states and 1181 transitions. [2023-04-02 04:18:40,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 04:18:40,204 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 63 [2023-04-02 04:18:40,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:18:40,211 INFO L225 Difference]: With dead ends: 898 [2023-04-02 04:18:40,211 INFO L226 Difference]: Without dead ends: 632 [2023-04-02 04:18:40,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-04-02 04:18:40,225 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 392 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 04:18:40,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 74 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 04:18:40,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2023-04-02 04:18:40,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 561. [2023-04-02 04:18:40,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 338 states have (on average 1.2633136094674555) internal successors, (427), 385 states have internal predecessors, (427), 123 states have call successors, (123), 98 states have call predecessors, (123), 99 states have return successors, (145), 96 states have call predecessors, (145), 119 states have call successors, (145) [2023-04-02 04:18:40,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 695 transitions. [2023-04-02 04:18:40,332 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 695 transitions. Word has length 63 [2023-04-02 04:18:40,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:18:40,333 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 695 transitions. [2023-04-02 04:18:40,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 04:18:40,334 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 695 transitions. [2023-04-02 04:18:40,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-02 04:18:40,341 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:18:40,341 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:18:40,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 04:18:40,341 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:18:40,342 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:18:40,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1244200752, now seen corresponding path program 1 times [2023-04-02 04:18:40,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:18:40,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355379373] [2023-04-02 04:18:40,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:18:40,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:18:40,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:40,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:18:40,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:40,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:18:40,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:40,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:18:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:40,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:18:40,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:40,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:18:40,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:40,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:18:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:40,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:18:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:40,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:18:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:40,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:18:40,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:40,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 04:18:40,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:40,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:18:40,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:18:40,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355379373] [2023-04-02 04:18:40,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355379373] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:18:40,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:18:40,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 04:18:40,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067676710] [2023-04-02 04:18:40,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:18:40,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 04:18:40,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:18:40,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 04:18:40,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 04:18:40,506 INFO L87 Difference]: Start difference. First operand 561 states and 695 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-02 04:18:41,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:18:41,149 INFO L93 Difference]: Finished difference Result 1358 states and 1768 transitions. [2023-04-02 04:18:41,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 04:18:41,149 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 67 [2023-04-02 04:18:41,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:18:41,154 INFO L225 Difference]: With dead ends: 1358 [2023-04-02 04:18:41,154 INFO L226 Difference]: Without dead ends: 821 [2023-04-02 04:18:41,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-04-02 04:18:41,157 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 518 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:18:41,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 59 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:18:41,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2023-04-02 04:18:41,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 751. [2023-04-02 04:18:41,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 465 states have (on average 1.227956989247312) internal successors, (571), 501 states have internal predecessors, (571), 144 states have call successors, (144), 126 states have call predecessors, (144), 141 states have return successors, (199), 143 states have call predecessors, (199), 140 states have call successors, (199) [2023-04-02 04:18:41,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 914 transitions. [2023-04-02 04:18:41,245 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 914 transitions. Word has length 67 [2023-04-02 04:18:41,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:18:41,246 INFO L495 AbstractCegarLoop]: Abstraction has 751 states and 914 transitions. [2023-04-02 04:18:41,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-02 04:18:41,246 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 914 transitions. [2023-04-02 04:18:41,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-02 04:18:41,247 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:18:41,247 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:18:41,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 04:18:41,248 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:18:41,248 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:18:41,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1175227952, now seen corresponding path program 1 times [2023-04-02 04:18:41,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:18:41,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773031884] [2023-04-02 04:18:41,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:18:41,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:18:41,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:18:41,263 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-02 04:18:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:18:41,296 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-04-02 04:18:41,296 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-02 04:18:41,297 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 04:18:41,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 04:18:41,302 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-04-02 04:18:41,305 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 04:18:41,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 04:18:41 BoogieIcfgContainer [2023-04-02 04:18:41,350 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 04:18:41,351 INFO L158 Benchmark]: Toolchain (without parser) took 6786.81ms. Allocated memory was 186.6MB in the beginning and 337.6MB in the end (delta: 151.0MB). Free memory was 133.4MB in the beginning and 159.2MB in the end (delta: -25.8MB). Peak memory consumption was 126.0MB. Max. memory is 8.0GB. [2023-04-02 04:18:41,351 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 186.6MB. Free memory is still 137.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 04:18:41,351 INFO L158 Benchmark]: CACSL2BoogieTranslator took 371.47ms. Allocated memory is still 186.6MB. Free memory was 133.0MB in the beginning and 114.5MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-04-02 04:18:41,352 INFO L158 Benchmark]: Boogie Preprocessor took 64.47ms. Allocated memory is still 186.6MB. Free memory was 114.5MB in the beginning and 111.0MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-02 04:18:41,352 INFO L158 Benchmark]: RCFGBuilder took 919.48ms. Allocated memory was 186.6MB in the beginning and 281.0MB in the end (delta: 94.4MB). Free memory was 111.0MB in the beginning and 222.6MB in the end (delta: -111.6MB). Peak memory consumption was 19.1MB. Max. memory is 8.0GB. [2023-04-02 04:18:41,352 INFO L158 Benchmark]: TraceAbstraction took 5423.57ms. Allocated memory was 281.0MB in the beginning and 337.6MB in the end (delta: 56.6MB). Free memory was 222.1MB in the beginning and 159.2MB in the end (delta: 62.9MB). Peak memory consumption was 119.5MB. Max. memory is 8.0GB. [2023-04-02 04:18:41,354 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 186.6MB. Free memory is still 137.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 371.47ms. Allocated memory is still 186.6MB. Free memory was 133.0MB in the beginning and 114.5MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 64.47ms. Allocated memory is still 186.6MB. Free memory was 114.5MB in the beginning and 111.0MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 919.48ms. Allocated memory was 186.6MB in the beginning and 281.0MB in the end (delta: 94.4MB). Free memory was 111.0MB in the beginning and 222.6MB in the end (delta: -111.6MB). Peak memory consumption was 19.1MB. Max. memory is 8.0GB. * TraceAbstraction took 5423.57ms. Allocated memory was 281.0MB in the beginning and 337.6MB in the end (delta: 56.6MB). Free memory was 222.1MB in the beginning and 159.2MB in the end (delta: 62.9MB). Peak memory consumption was 119.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 54]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L59] int cleanupTimeShifts = 4; [L367] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L639] int pumpRunning = 0; [L640] int systemActive = 1; [L851] int waterLevel = 1; [L852] 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] [L140] int retValue_acc ; [L141] 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] [L145] 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] [L146] 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] [L147] 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] [L189] int retValue_acc ; [L192] retValue_acc = 1 [L193] 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] [L147] 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] [L147] tmp = valid_product() [L149] 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] [L151] 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] [L152] 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] [L131] 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] [L566] int splverifierCounter ; [L567] int tmp ; [L568] int tmp___0 ; [L569] int tmp___1 ; [L570] int tmp___2 ; [L573] 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] [L575] 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] [L577] 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] [L583] tmp = __VERIFIER_nondet_int() [L585] 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] [L587] 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] [L869] COND TRUE waterLevel < 2 [L870] 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] [L587] 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] [L593] tmp___0 = __VERIFIER_nondet_int() [L595] 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] [L603] tmp___2 = __VERIFIER_nondet_int() [L605] COND FALSE !(\read(tmp___2)) [L609] tmp___1 = __VERIFIER_nondet_int() [L611] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L613] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L838] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L845] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L613] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L620] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L647] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L654] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L662] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L946] int tmp ; [L947] int tmp___0 ; [L948] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L952] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L890] int retValue_acc ; [L893] retValue_acc = methaneLevelCritical [L894] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L952] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L952] tmp = isMethaneLevelCritical() [L954] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L958] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L922] int retValue_acc ; [L925] retValue_acc = waterLevel [L926] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L958] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L958] tmp___0 = getWaterLevel() [L960] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L962] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L771] int retValue_acc ; [L774] retValue_acc = pumpRunning [L775] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L962] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L962] tmp___1 = isPumpRunning() [L964] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L968] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L54] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 244 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1560 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1484 mSDsluCounter, 295 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 230 mSDsCounter, 818 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2687 IncrementalHoareTripleChecker+Invalid, 3505 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 818 mSolverCounterUnsat, 65 mSDtfsCounter, 2687 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=751occurred in iteration=5, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 268 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 359 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 287 ConstructedInterpolants, 0 QuantifiedInterpolants, 643 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-04-02 04:18:41,376 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...