/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_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 04:18:50,139 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 04:18:50,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 04:18:50,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 04:18:50,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 04:18:50,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 04:18:50,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 04:18:50,187 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 04:18:50,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 04:18:50,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 04:18:50,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 04:18:50,195 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 04:18:50,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 04:18:50,198 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 04:18:50,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 04:18:50,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 04:18:50,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 04:18:50,204 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 04:18:50,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 04:18:50,210 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 04:18:50,211 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 04:18:50,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 04:18:50,212 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 04:18:50,213 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 04:18:50,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 04:18:50,222 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 04:18:50,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 04:18:50,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 04:18:50,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 04:18:50,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 04:18:50,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 04:18:50,224 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 04:18:50,225 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 04:18:50,225 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 04:18:50,225 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 04:18:50,226 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 04:18:50,226 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 04:18:50,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 04:18:50,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 04:18:50,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 04:18:50,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 04:18:50,232 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 04:18:50,256 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 04:18:50,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 04:18:50,256 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 04:18:50,256 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 04:18:50,258 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 04:18:50,258 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 04:18:50,258 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 04:18:50,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 04:18:50,258 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 04:18:50,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 04:18:50,259 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 04:18:50,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 04:18:50,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 04:18:50,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 04:18:50,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 04:18:50,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 04:18:50,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 04:18:50,260 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 04:18:50,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 04:18:50,260 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 04:18:50,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 04:18:50,260 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 04:18:50,260 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 04:18:50,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 04:18:50,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:18:50,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 04:18:50,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 04:18:50,261 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 04:18:50,261 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 04:18:50,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 04:18:50,261 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 04:18:50,261 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 04:18:50,262 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 04:18:50,262 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 04:18:50,262 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 04:18:50,262 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 04:18:50,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 04:18:50,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 04:18:50,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 04:18:50,496 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 04:18:50,497 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 04:18:50,498 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c [2023-04-02 04:18:51,600 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 04:18:51,794 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 04:18:51,795 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c [2023-04-02 04:18:51,804 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52d63d809/cac8e6ef53fe43a29be0a8c06371407a/FLAG1430b5f04 [2023-04-02 04:18:51,826 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52d63d809/cac8e6ef53fe43a29be0a8c06371407a [2023-04-02 04:18:51,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 04:18:51,829 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 04:18:51,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 04:18:51,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 04:18:51,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 04:18:51,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:18:51" (1/1) ... [2023-04-02 04:18:51,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bcb4805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:51, skipping insertion in model container [2023-04-02 04:18:51,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:18:51" (1/1) ... [2023-04-02 04:18:51,839 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 04:18:51,871 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 04:18:52,065 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_product52.cil.c[17256,17269] [2023-04-02 04:18:52,075 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:18:52,091 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 04:18:52,147 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_product52.cil.c[17256,17269] [2023-04-02 04:18:52,151 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:18:52,165 INFO L208 MainTranslator]: Completed translation [2023-04-02 04:18:52,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:52 WrapperNode [2023-04-02 04:18:52,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 04:18:52,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 04:18:52,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 04:18:52,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 04:18:52,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:52" (1/1) ... [2023-04-02 04:18:52,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:52" (1/1) ... [2023-04-02 04:18:52,186 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:52" (1/1) ... [2023-04-02 04:18:52,186 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:52" (1/1) ... [2023-04-02 04:18:52,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:52" (1/1) ... [2023-04-02 04:18:52,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:52" (1/1) ... [2023-04-02 04:18:52,214 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:52" (1/1) ... [2023-04-02 04:18:52,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:52" (1/1) ... [2023-04-02 04:18:52,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 04:18:52,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 04:18:52,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 04:18:52,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 04:18:52,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:52" (1/1) ... [2023-04-02 04:18:52,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:18:52,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:18:52,249 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 04:18:52,254 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 04:18:52,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 04:18:52,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 04:18:52,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 04:18:52,282 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 04:18:52,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2023-04-02 04:18:52,282 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-02 04:18:52,282 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-02 04:18:52,282 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-02 04:18:52,282 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-02 04:18:52,283 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-02 04:18:52,283 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-02 04:18:52,283 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-02 04:18:52,283 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-04-02 04:18:52,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 04:18:52,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 04:18:52,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 04:18:52,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 04:18:52,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 04:18:52,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 04:18:52,284 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 04:18:52,284 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-02 04:18:52,284 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-04-02 04:18:52,284 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-02 04:18:52,284 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-02 04:18:52,284 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-02 04:18:52,284 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-02 04:18:52,284 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-02 04:18:52,288 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-02 04:18:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-02 04:18:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-04-02 04:18:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-02 04:18:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-04-02 04:18:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 04:18:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 04:18:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 04:18:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 04:18:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 04:18:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 04:18:52,290 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 04:18:52,290 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 04:18:52,290 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 04:18:52,290 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 04:18:52,290 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 04:18:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 04:18:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 04:18:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 04:18:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 04:18:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 04:18:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 04:18:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 04:18:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-02 04:18:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-02 04:18:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-02 04:18:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2023-04-02 04:18:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-02 04:18:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-02 04:18:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-02 04:18:52,292 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-02 04:18:52,292 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-02 04:18:52,292 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-04-02 04:18:52,292 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 04:18:52,292 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 04:18:52,292 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 04:18:52,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 04:18:52,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 04:18:52,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 04:18:52,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 04:18:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 04:18:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 04:18:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 04:18:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 04:18:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 04:18:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 04:18:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 04:18:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 04:18:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 04:18:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-02 04:18:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-02 04:18:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-02 04:18:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-02 04:18:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-04-02 04:18:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-02 04:18:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-02 04:18:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-02 04:18:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-04-02 04:18:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-04-02 04:18:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-02 04:18:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 04:18:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 04:18:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 04:18:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 04:18:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 04:18:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 04:18:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 04:18:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 04:18:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 04:18:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 04:18:52,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 04:18:52,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 04:18:52,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 04:18:52,450 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 04:18:52,452 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 04:18:53,033 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 04:18:53,039 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 04:18:53,040 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-02 04:18:53,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:18:53 BoogieIcfgContainer [2023-04-02 04:18:53,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 04:18:53,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 04:18:53,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 04:18:53,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 04:18:53,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 04:18:51" (1/3) ... [2023-04-02 04:18:53,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bc3cfa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:18:53, skipping insertion in model container [2023-04-02 04:18:53,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:52" (2/3) ... [2023-04-02 04:18:53,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bc3cfa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:18:53, skipping insertion in model container [2023-04-02 04:18:53,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:18:53" (3/3) ... [2023-04-02 04:18:53,051 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product52.cil.c [2023-04-02 04:18:53,065 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 04:18:53,065 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 04:18:53,111 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 04:18:53,116 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;@3645ead6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 04:18:53,116 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 04:18:53,120 INFO L276 IsEmpty]: Start isEmpty. Operand has 190 states, 106 states have (on average 1.2924528301886793) internal successors, (137), 121 states have internal predecessors, (137), 49 states have call successors, (49), 31 states have call predecessors, (49), 31 states have return successors, (49), 44 states have call predecessors, (49), 49 states have call successors, (49) [2023-04-02 04:18:53,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-04-02 04:18:53,130 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:18:53,130 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 04:18:53,131 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:18:53,137 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:18:53,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1106516232, now seen corresponding path program 1 times [2023-04-02 04:18:53,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:18:53,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953432267] [2023-04-02 04:18:53,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:18:53,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:18:53,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:53,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:18:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:53,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:18:53,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:53,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:18:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:53,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:18:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:53,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:18:53,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:53,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:18:53,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:53,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:18:53,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:53,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:18:53,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:53,423 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 04:18:53,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:18:53,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953432267] [2023-04-02 04:18:53,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953432267] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:18:53,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:18:53,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 04:18:53,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202058914] [2023-04-02 04:18:53,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:18:53,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 04:18:53,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:18:53,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 04:18:53,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 04:18:53,454 INFO L87 Difference]: Start difference. First operand has 190 states, 106 states have (on average 1.2924528301886793) internal successors, (137), 121 states have internal predecessors, (137), 49 states have call successors, (49), 31 states have call predecessors, (49), 31 states have return successors, (49), 44 states have call predecessors, (49), 49 states have call successors, (49) 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 04:18:53,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:18:53,956 INFO L93 Difference]: Finished difference Result 332 states and 431 transitions. [2023-04-02 04:18:53,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 04:18:53,959 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 04:18:53,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:18:53,967 INFO L225 Difference]: With dead ends: 332 [2023-04-02 04:18:53,967 INFO L226 Difference]: Without dead ends: 179 [2023-04-02 04:18:53,970 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 04:18:53,973 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 104 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:18:53,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 25 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:18:53,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-04-02 04:18:54,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 144. [2023-04-02 04:18:54,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 85 states have (on average 1.2470588235294118) internal successors, (106), 97 states have internal predecessors, (106), 34 states have call successors, (34), 29 states have call predecessors, (34), 24 states have return successors, (29), 24 states have call predecessors, (29), 29 states have call successors, (29) [2023-04-02 04:18:54,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 169 transitions. [2023-04-02 04:18:54,025 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 169 transitions. Word has length 52 [2023-04-02 04:18:54,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:18:54,025 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 169 transitions. [2023-04-02 04:18:54,026 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 04:18:54,026 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 169 transitions. [2023-04-02 04:18:54,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-04-02 04:18:54,028 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:18:54,028 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 04:18:54,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 04:18:54,029 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:18:54,029 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:18:54,029 INFO L85 PathProgramCache]: Analyzing trace with hash -333087500, now seen corresponding path program 1 times [2023-04-02 04:18:54,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:18:54,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550434728] [2023-04-02 04:18:54,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:18:54,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:18:54,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:54,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:18:54,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:54,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:18:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:54,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:18:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:54,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:18:54,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:54,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:18:54,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:54,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:18:54,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:54,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 04:18:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:54,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 04:18:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:54,147 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 04:18:54,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:18:54,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550434728] [2023-04-02 04:18:54,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550434728] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:18:54,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:18:54,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 04:18:54,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253332180] [2023-04-02 04:18:54,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:18:54,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 04:18:54,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:18:54,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 04:18:54,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 04:18:54,152 INFO L87 Difference]: Start difference. First operand 144 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 04:18:54,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:18:54,507 INFO L93 Difference]: Finished difference Result 255 states and 310 transitions. [2023-04-02 04:18:54,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 04:18:54,508 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 04:18:54,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:18:54,509 INFO L225 Difference]: With dead ends: 255 [2023-04-02 04:18:54,509 INFO L226 Difference]: Without dead ends: 163 [2023-04-02 04:18:54,510 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 04:18:54,511 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 114 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:18:54,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 34 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:18:54,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-04-02 04:18:54,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 135. [2023-04-02 04:18:54,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 79 states have (on average 1.2531645569620253) internal successors, (99), 91 states have internal predecessors, (99), 31 states have call successors, (31), 28 states have call predecessors, (31), 24 states have return successors, (27), 22 states have call predecessors, (27), 27 states have call successors, (27) [2023-04-02 04:18:54,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 157 transitions. [2023-04-02 04:18:54,571 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 157 transitions. Word has length 53 [2023-04-02 04:18:54,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:18:54,571 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 157 transitions. [2023-04-02 04:18:54,571 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 04:18:54,571 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 157 transitions. [2023-04-02 04:18:54,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-04-02 04:18:54,573 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:18:54,573 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] [2023-04-02 04:18:54,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 04:18:54,573 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:18:54,573 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:18:54,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1778333764, now seen corresponding path program 1 times [2023-04-02 04:18:54,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:18:54,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921385534] [2023-04-02 04:18:54,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:18:54,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:18:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:54,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:18:54,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:54,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:18:54,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:54,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:18:54,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:54,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:18:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:54,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:18:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:54,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:18:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:54,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:18:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:54,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 04:18:54,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:54,894 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 04:18:54,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:18:54,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921385534] [2023-04-02 04:18:54,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921385534] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:18:54,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:18:54,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:18:54,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500284238] [2023-04-02 04:18:54,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:18:54,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:18:54,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:18:54,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:18:54,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:18:54,896 INFO L87 Difference]: Start difference. First operand 135 states and 157 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 6 states have internal predecessors, (36), 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 04:18:55,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:18:55,765 INFO L93 Difference]: Finished difference Result 466 states and 575 transitions. [2023-04-02 04:18:55,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 04:18:55,766 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 6 states have internal predecessors, (36), 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 58 [2023-04-02 04:18:55,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:18:55,768 INFO L225 Difference]: With dead ends: 466 [2023-04-02 04:18:55,768 INFO L226 Difference]: Without dead ends: 355 [2023-04-02 04:18:55,769 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 04:18:55,770 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 356 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 1171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 04:18:55,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 110 Invalid, 1171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 04:18:55,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2023-04-02 04:18:55,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 290. [2023-04-02 04:18:55,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 177 states have (on average 1.2881355932203389) internal successors, (228), 200 states have internal predecessors, (228), 62 states have call successors, (62), 56 states have call predecessors, (62), 50 states have return successors, (59), 46 states have call predecessors, (59), 58 states have call successors, (59) [2023-04-02 04:18:55,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 349 transitions. [2023-04-02 04:18:55,854 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 349 transitions. Word has length 58 [2023-04-02 04:18:55,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:18:55,854 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 349 transitions. [2023-04-02 04:18:55,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 6 states have internal predecessors, (36), 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 04:18:55,855 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 349 transitions. [2023-04-02 04:18:55,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-04-02 04:18:55,860 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:18:55,860 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 04:18:55,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 04:18:55,860 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:18:55,861 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:18:55,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1268293551, now seen corresponding path program 1 times [2023-04-02 04:18:55,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:18:55,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639424343] [2023-04-02 04:18:55,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:18:55,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:18:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:56,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:18:56,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:56,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:18:56,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:56,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:18:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:56,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:18:56,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:56,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:18:56,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:56,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:18:56,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:56,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:18:56,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:56,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 04:18:56,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:56,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:18:56,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:56,065 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 04:18:56,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:18:56,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639424343] [2023-04-02 04:18:56,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639424343] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:18:56,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:18:56,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:18:56,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106592988] [2023-04-02 04:18:56,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:18:56,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:18:56,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:18:56,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:18:56,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:18:56,067 INFO L87 Difference]: Start difference. First operand 290 states and 349 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 04:18:56,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:18:56,748 INFO L93 Difference]: Finished difference Result 893 states and 1167 transitions. [2023-04-02 04:18:56,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 04:18:56,748 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 04:18:56,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:18:56,754 INFO L225 Difference]: With dead ends: 893 [2023-04-02 04:18:56,754 INFO L226 Difference]: Without dead ends: 627 [2023-04-02 04:18:56,756 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 04:18:56,763 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 259 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:18:56,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 82 Invalid, 979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 851 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:18:56,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2023-04-02 04:18:56,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 557. [2023-04-02 04:18:56,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 340 states have (on average 1.261764705882353) internal successors, (429), 385 states have internal predecessors, (429), 117 states have call successors, (117), 100 states have call predecessors, (117), 99 states have return successors, (137), 90 states have call predecessors, (137), 113 states have call successors, (137) [2023-04-02 04:18:56,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 683 transitions. [2023-04-02 04:18:56,855 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 683 transitions. Word has length 63 [2023-04-02 04:18:56,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:18:56,856 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 683 transitions. [2023-04-02 04:18:56,856 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 04:18:56,856 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 683 transitions. [2023-04-02 04:18:56,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-02 04:18:56,860 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:18:56,861 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 04:18:56,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 04:18:56,861 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:18:56,862 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:18:56,862 INFO L85 PathProgramCache]: Analyzing trace with hash 893055895, now seen corresponding path program 1 times [2023-04-02 04:18:56,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:18:56,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78763094] [2023-04-02 04:18:56,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:18:56,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:18:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:18:56,882 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-02 04:18:56,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:18:56,912 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-04-02 04:18:56,913 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-02 04:18:56,913 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 04:18:56,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 04:18:56,917 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-04-02 04:18:56,920 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 04:18:56,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 04:18:56 BoogieIcfgContainer [2023-04-02 04:18:56,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 04:18:56,951 INFO L158 Benchmark]: Toolchain (without parser) took 5121.59ms. Allocated memory was 231.7MB in the beginning and 335.5MB in the end (delta: 103.8MB). Free memory was 167.4MB in the beginning and 265.9MB in the end (delta: -98.5MB). Peak memory consumption was 5.5MB. Max. memory is 8.0GB. [2023-04-02 04:18:56,951 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 231.7MB. Free memory is still 182.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 04:18:56,951 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.85ms. Allocated memory was 231.7MB in the beginning and 278.9MB in the end (delta: 47.2MB). Free memory was 167.1MB in the beginning and 243.2MB in the end (delta: -76.1MB). Peak memory consumption was 19.8MB. Max. memory is 8.0GB. [2023-04-02 04:18:56,951 INFO L158 Benchmark]: Boogie Preprocessor took 52.77ms. Allocated memory is still 278.9MB. Free memory was 243.2MB in the beginning and 239.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-04-02 04:18:56,951 INFO L158 Benchmark]: RCFGBuilder took 822.03ms. Allocated memory is still 278.9MB. Free memory was 239.5MB in the beginning and 199.7MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 8.0GB. [2023-04-02 04:18:56,952 INFO L158 Benchmark]: TraceAbstraction took 3906.51ms. Allocated memory was 278.9MB in the beginning and 335.5MB in the end (delta: 56.6MB). Free memory was 198.7MB in the beginning and 265.9MB in the end (delta: -67.2MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 04:18:56,952 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 231.7MB. Free memory is still 182.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 335.85ms. Allocated memory was 231.7MB in the beginning and 278.9MB in the end (delta: 47.2MB). Free memory was 167.1MB in the beginning and 243.2MB in the end (delta: -76.1MB). Peak memory consumption was 19.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 52.77ms. Allocated memory is still 278.9MB. Free memory was 243.2MB in the beginning and 239.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 822.03ms. Allocated memory is still 278.9MB. Free memory was 239.5MB in the beginning and 199.7MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 8.0GB. * TraceAbstraction took 3906.51ms. Allocated memory was 278.9MB in the beginning and 335.5MB in the end (delta: 56.6MB). Free memory was 198.7MB in the beginning and 265.9MB in the end (delta: -67.2MB). There was no memory consumed. 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: 863]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L94] int waterLevel = 1; [L95] int methaneLevelCritical = 0; [L366] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L569] int pumpRunning = 0; [L570] int systemActive = 1; [L906] int cleanupTimeShifts = 4; 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] [L979] int retValue_acc ; [L980] 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] [L984] 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] [L985] 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] [L986] 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] [L897] int retValue_acc ; [L900] retValue_acc = 1 [L901] 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] [L986] 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] [L986] tmp = valid_product() [L988] 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] [L990] 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] [L991] 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] [L973] 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] [L791] int splverifierCounter ; [L792] int tmp ; [L793] int tmp___0 ; [L794] int tmp___1 ; [L795] int tmp___2 ; [L798] 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] [L800] 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] [L802] 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] [L808] tmp = __VERIFIER_nondet_int() [L810] 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] [L812] 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] [L112] COND TRUE waterLevel < 2 [L113] 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] [L812] 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] [L818] tmp___0 = __VERIFIER_nondet_int() [L820] 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] [L828] tmp___2 = __VERIFIER_nondet_int() [L830] COND FALSE !(\read(tmp___2)) [L836] tmp___1 = __VERIFIER_nondet_int() [L838] 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] [L840] 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] [L769] 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] [L776] 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] [L840] 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] [L847] 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] [L576] 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] [L583] 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] [L591] 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] [L55] int tmp ; [L56] int tmp___0 ; [L57] 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] [L61] 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] [L133] int retValue_acc ; [L136] retValue_acc = methaneLevelCritical [L137] 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] [L61] 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] [L61] tmp = isMethaneLevelCritical() [L63] 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] [L67] 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] [L165] int retValue_acc ; [L168] retValue_acc = waterLevel [L169] 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] [L67] 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] [L67] tmp___0 = getWaterLevel() [L69] 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] [L71] 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] [L683] int retValue_acc ; [L686] retValue_acc = pumpRunning [L687] 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] [L71] 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] [L71] tmp___1 = isPumpRunning() [L73] 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] [L77] 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] [L863] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 251 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 890 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 833 mSDsluCounter, 251 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 186 mSDsCounter, 380 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2414 IncrementalHoareTripleChecker+Invalid, 2794 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 380 mSolverCounterUnsat, 65 mSDtfsCounter, 2414 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=557occurred in iteration=4, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 198 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 482 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 04:18:56,981 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...