/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 22:02:25,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 22:02:25,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 22:02:25,550 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 22:02:25,551 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 22:02:25,552 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 22:02:25,554 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 22:02:25,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 22:02:25,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 22:02:25,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 22:02:25,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 22:02:25,571 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 22:02:25,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 22:02:25,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 22:02:25,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 22:02:25,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 22:02:25,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 22:02:25,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 22:02:25,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 22:02:25,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 22:02:25,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 22:02:25,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 22:02:25,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 22:02:25,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 22:02:25,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 22:02:25,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 22:02:25,605 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 22:02:25,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 22:02:25,608 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 22:02:25,624 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 22:02:25,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 22:02:25,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 22:02:25,628 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 22:02:25,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 22:02:25,629 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 22:02:25,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 22:02:25,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 22:02:25,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 22:02:25,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 22:02:25,630 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 22:02:25,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 22:02:25,631 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 22:02:25,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 22:02:25,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 22:02:25,633 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 22:02:25,633 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 22:02:25,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 22:02:25,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 22:02:25,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 22:02:25,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 22:02:25,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 22:02:25,634 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 22:02:26,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 22:02:26,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 22:02:26,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 22:02:26,067 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 22:02:26,068 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 22:02:26,069 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2021-02-23 22:02:26,163 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31b47b243/47099e3458624d7fabdf214eb3334495/FLAGa0a39f81f [2021-02-23 22:02:26,855 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 22:02:26,856 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2021-02-23 22:02:26,882 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31b47b243/47099e3458624d7fabdf214eb3334495/FLAGa0a39f81f [2021-02-23 22:02:27,192 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31b47b243/47099e3458624d7fabdf214eb3334495 [2021-02-23 22:02:27,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 22:02:27,211 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 22:02:27,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 22:02:27,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 22:02:27,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 22:02:27,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 10:02:27" (1/1) ... [2021-02-23 22:02:27,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5999a5f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:02:27, skipping insertion in model container [2021-02-23 22:02:27,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 10:02:27" (1/1) ... [2021-02-23 22:02:27,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 22:02:27,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 22:02:27,717 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c[18698,18711] [2021-02-23 22:02:27,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 22:02:27,736 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 22:02:27,836 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c[18698,18711] [2021-02-23 22:02:27,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 22:02:27,883 INFO L208 MainTranslator]: Completed translation [2021-02-23 22:02:27,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:02:27 WrapperNode [2021-02-23 22:02:27,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 22:02:27,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 22:02:27,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 22:02:27,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 22:02:27,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:02:27" (1/1) ... [2021-02-23 22:02:27,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:02:27" (1/1) ... [2021-02-23 22:02:27,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:02:27" (1/1) ... [2021-02-23 22:02:27,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:02:27" (1/1) ... [2021-02-23 22:02:27,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:02:27" (1/1) ... [2021-02-23 22:02:27,964 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:02:27" (1/1) ... [2021-02-23 22:02:27,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:02:27" (1/1) ... [2021-02-23 22:02:27,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 22:02:27,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 22:02:27,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 22:02:27,981 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 22:02:27,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:02:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 22:02:28,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 22:02:28,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 22:02:28,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-23 22:02:28,169 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 22:02:28,169 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-23 22:02:28,169 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-23 22:02:28,169 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-23 22:02:28,169 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-23 22:02:28,169 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-23 22:02:28,170 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-23 22:02:28,170 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-02-23 22:02:28,170 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-02-23 22:02:28,171 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-23 22:02:28,171 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2021-02-23 22:02:28,171 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-23 22:02:28,172 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-23 22:02:28,172 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-23 22:02:28,173 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-23 22:02:28,174 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-23 22:02:28,174 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-23 22:02:28,176 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2021-02-23 22:02:28,176 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-23 22:02:28,177 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-23 22:02:28,177 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-23 22:02:28,177 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-23 22:02:28,177 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-23 22:02:28,177 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-23 22:02:28,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-23 22:02:28,177 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-23 22:02:28,178 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-23 22:02:28,178 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-23 22:02:28,178 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2021-02-23 22:02:28,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-23 22:02:28,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-23 22:02:28,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-23 22:02:28,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-23 22:02:28,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-23 22:02:28,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-23 22:02:28,179 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-23 22:02:28,179 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-23 22:02:28,179 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-23 22:02:28,179 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-23 22:02:28,180 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 22:02:28,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-23 22:02:28,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-23 22:02:28,180 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 22:02:28,180 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 22:02:28,180 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 22:02:28,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 22:02:28,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 22:02:28,181 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-23 22:02:28,181 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-23 22:02:28,181 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-23 22:02:28,181 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-23 22:02:28,181 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-23 22:02:28,181 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-23 22:02:28,182 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-23 22:02:28,182 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-23 22:02:28,182 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-23 22:02:28,182 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2021-02-23 22:02:28,183 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-23 22:02:28,183 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-23 22:02:28,183 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-23 22:02:28,183 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-23 22:02:28,183 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-23 22:02:28,184 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-23 22:02:28,184 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-23 22:02:28,184 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-23 22:02:28,185 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-23 22:02:28,185 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-23 22:02:28,185 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-23 22:02:28,186 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-02-23 22:02:28,186 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2021-02-23 22:02:28,186 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-02-23 22:02:28,186 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-23 22:02:28,186 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2021-02-23 22:02:28,186 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-23 22:02:28,186 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-23 22:02:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-23 22:02:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-23 22:02:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-23 22:02:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 22:02:28,189 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 22:02:28,189 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-23 22:02:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 22:02:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 22:02:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 22:02:28,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 22:02:28,191 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-23 22:02:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 22:02:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-23 22:02:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-23 22:02:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 22:02:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-23 22:02:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-23 22:02:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-23 22:02:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-23 22:02:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-23 22:02:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-23 22:02:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 22:02:28,194 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-23 22:02:28,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 22:02:28,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 22:02:28,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 22:02:29,827 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 22:02:29,828 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 22:02:29,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 10:02:29 BoogieIcfgContainer [2021-02-23 22:02:29,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 22:02:29,834 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 22:02:29,834 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 22:02:29,838 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 22:02:29,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 10:02:27" (1/3) ... [2021-02-23 22:02:29,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75543fbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 10:02:29, skipping insertion in model container [2021-02-23 22:02:29,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:02:27" (2/3) ... [2021-02-23 22:02:29,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75543fbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 10:02:29, skipping insertion in model container [2021-02-23 22:02:29,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 10:02:29" (3/3) ... [2021-02-23 22:02:29,842 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2021-02-23 22:02:29,849 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 22:02:29,855 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 22:02:29,876 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 22:02:29,901 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 22:02:29,901 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 22:02:29,902 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 22:02:29,902 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 22:02:29,902 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 22:02:29,902 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 22:02:29,902 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 22:02:29,903 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 22:02:29,930 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states. [2021-02-23 22:02:29,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-23 22:02:29,953 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:02:29,955 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:02:29,955 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:02:29,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:02:29,963 INFO L82 PathProgramCache]: Analyzing trace with hash -353660962, now seen corresponding path program 1 times [2021-02-23 22:02:29,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:02:29,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1729047205] [2021-02-23 22:02:29,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:02:30,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:30,407 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:30,408 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:30,409 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:30,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:30,819 WARN L202 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:02:30,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:02:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:30,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:30,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:30,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:02:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:30,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:30,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:30,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:02:30,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:30,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:30,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:30,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:02:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:30,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:30,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:30,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:02:30,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:30,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:30,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:30,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-23 22:02:30,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:30,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:30,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:30,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 22:02:30,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:30,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:30,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:30,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 22:02:30,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:30,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:30,973 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:31,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 22:02:31,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1729047205] [2021-02-23 22:02:31,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:02:31,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 22:02:31,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580677914] [2021-02-23 22:02:31,022 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 22:02:31,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:02:31,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 22:02:31,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 22:02:31,041 INFO L87 Difference]: Start difference. First operand 368 states. Second operand 3 states. [2021-02-23 22:02:33,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:02:33,385 INFO L93 Difference]: Finished difference Result 602 states and 716 transitions. [2021-02-23 22:02:33,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 22:02:33,387 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-23 22:02:33,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:02:33,405 INFO L225 Difference]: With dead ends: 602 [2021-02-23 22:02:33,406 INFO L226 Difference]: Without dead ends: 364 [2021-02-23 22:02:33,412 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 22:02:33,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2021-02-23 22:02:33,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 316. [2021-02-23 22:02:33,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2021-02-23 22:02:33,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 348 transitions. [2021-02-23 22:02:33,608 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 348 transitions. Word has length 158 [2021-02-23 22:02:33,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:02:33,609 INFO L480 AbstractCegarLoop]: Abstraction has 316 states and 348 transitions. [2021-02-23 22:02:33,609 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 22:02:33,609 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 348 transitions. [2021-02-23 22:02:33,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-23 22:02:33,614 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:02:33,615 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:02:33,615 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 22:02:33,615 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:02:33,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:02:33,616 INFO L82 PathProgramCache]: Analyzing trace with hash -2140843234, now seen corresponding path program 1 times [2021-02-23 22:02:33,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:02:33,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1925043747] [2021-02-23 22:02:33,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:02:33,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:33,802 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:33,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:33,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:33,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:33,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:33,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:34,189 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:02:34,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:02:34,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:34,238 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:34,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:34,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:02:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:34,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:34,247 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:34,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:02:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:34,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:34,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:34,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:02:34,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:34,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:34,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:34,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:02:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:34,257 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:34,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:34,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 22:02:34,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:34,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:34,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:34,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-23 22:02:34,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:34,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:34,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:34,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-23 22:02:34,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:34,268 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:34,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:34,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 22:02:34,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1925043747] [2021-02-23 22:02:34,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:02:34,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 22:02:34,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247033412] [2021-02-23 22:02:34,326 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 22:02:34,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:02:34,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 22:02:34,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 22:02:34,327 INFO L87 Difference]: Start difference. First operand 316 states and 348 transitions. Second operand 4 states. [2021-02-23 22:02:35,166 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 22:02:36,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:02:36,886 INFO L93 Difference]: Finished difference Result 508 states and 578 transitions. [2021-02-23 22:02:36,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 22:02:36,887 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-23 22:02:36,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:02:36,893 INFO L225 Difference]: With dead ends: 508 [2021-02-23 22:02:36,893 INFO L226 Difference]: Without dead ends: 347 [2021-02-23 22:02:36,895 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 22:02:36,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2021-02-23 22:02:37,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 306. [2021-02-23 22:02:37,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2021-02-23 22:02:37,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 335 transitions. [2021-02-23 22:02:37,058 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 335 transitions. Word has length 159 [2021-02-23 22:02:37,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:02:37,059 INFO L480 AbstractCegarLoop]: Abstraction has 306 states and 335 transitions. [2021-02-23 22:02:37,059 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 22:02:37,059 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 335 transitions. [2021-02-23 22:02:37,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-02-23 22:02:37,062 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:02:37,062 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:02:37,062 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 22:02:37,063 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:02:37,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:02:37,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1125048418, now seen corresponding path program 1 times [2021-02-23 22:02:37,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:02:37,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1009999067] [2021-02-23 22:02:37,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:02:37,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:37,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:37,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:37,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:37,162 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:37,165 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:37,166 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:37,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:37,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:37,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:37,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:02:37,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:37,179 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:37,511 WARN L202 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:02:37,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:02:37,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:37,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:37,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:37,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:02:37,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:37,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:37,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:37,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:02:37,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:37,563 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:37,564 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:37,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:02:37,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:37,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:37,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:37,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:37,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:02:37,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:37,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:02:37,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:02:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:37,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:37,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:37,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-23 22:02:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:37,629 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:37,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:37,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-23 22:02:37,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:37,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:37,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:37,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-23 22:02:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:37,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:37,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:37,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-02-23 22:02:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:37,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:37,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:37,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 22:02:37,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1009999067] [2021-02-23 22:02:37,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:02:37,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 22:02:37,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861748458] [2021-02-23 22:02:37,734 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 22:02:37,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:02:37,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 22:02:37,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-23 22:02:37,736 INFO L87 Difference]: Start difference. First operand 306 states and 335 transitions. Second operand 10 states. [2021-02-23 22:02:38,481 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:02:38,968 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 22:02:39,356 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-23 22:02:39,787 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:02:40,221 WARN L202 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:02:40,597 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:02:41,706 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 22:02:45,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:02:45,627 INFO L93 Difference]: Finished difference Result 862 states and 1007 transitions. [2021-02-23 22:02:45,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-23 22:02:45,628 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2021-02-23 22:02:45,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:02:45,635 INFO L225 Difference]: With dead ends: 862 [2021-02-23 22:02:45,635 INFO L226 Difference]: Without dead ends: 671 [2021-02-23 22:02:45,637 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2021-02-23 22:02:45,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2021-02-23 22:02:45,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 568. [2021-02-23 22:02:45,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 568 states. [2021-02-23 22:02:45,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 641 transitions. [2021-02-23 22:02:45,920 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 641 transitions. Word has length 172 [2021-02-23 22:02:45,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:02:45,921 INFO L480 AbstractCegarLoop]: Abstraction has 568 states and 641 transitions. [2021-02-23 22:02:45,921 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 22:02:45,921 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 641 transitions. [2021-02-23 22:02:45,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-02-23 22:02:45,925 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:02:45,926 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:02:45,926 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 22:02:45,926 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:02:45,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:02:45,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1543091679, now seen corresponding path program 1 times [2021-02-23 22:02:45,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:02:45,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1605394122] [2021-02-23 22:02:45,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:02:45,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:46,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:46,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:46,010 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:46,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:46,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:46,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:46,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:46,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:46,013 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:46,013 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:46,013 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:46,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:46,018 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:46,019 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:46,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:46,024 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:46,343 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:02:46,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:02:46,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:46,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:46,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:46,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:46,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 22:02:46,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:02:46,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:46,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:46,405 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:46,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:02:46,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:46,409 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:46,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:46,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:02:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:46,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:46,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:46,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:02:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:46,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:46,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:46,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-23 22:02:46,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:46,433 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:46,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:46,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-23 22:02:46,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:46,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:46,438 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:46,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-02-23 22:02:46,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:46,443 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:46,443 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:46,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:46,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:46,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:46,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:46,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-02-23 22:02:46,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:46,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:46,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:46,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 22:02:46,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1605394122] [2021-02-23 22:02:46,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:02:46,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 22:02:46,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587626830] [2021-02-23 22:02:46,516 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 22:02:46,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:02:46,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 22:02:46,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-23 22:02:46,517 INFO L87 Difference]: Start difference. First operand 568 states and 641 transitions. Second operand 9 states. [2021-02-23 22:02:47,151 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:02:49,560 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:02:50,094 WARN L202 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:02:50,618 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:02:51,079 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:02:51,444 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:02:51,830 WARN L202 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:02:52,175 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:02:53,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:02:53,932 INFO L93 Difference]: Finished difference Result 1572 states and 1896 transitions. [2021-02-23 22:02:53,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-23 22:02:53,932 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 177 [2021-02-23 22:02:53,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:02:53,941 INFO L225 Difference]: With dead ends: 1572 [2021-02-23 22:02:53,941 INFO L226 Difference]: Without dead ends: 1119 [2021-02-23 22:02:53,944 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-23 22:02:53,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1119 states. [2021-02-23 22:02:54,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1119 to 1008. [2021-02-23 22:02:54,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1008 states. [2021-02-23 22:02:54,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1164 transitions. [2021-02-23 22:02:54,422 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1164 transitions. Word has length 177 [2021-02-23 22:02:54,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:02:54,423 INFO L480 AbstractCegarLoop]: Abstraction has 1008 states and 1164 transitions. [2021-02-23 22:02:54,423 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 22:02:54,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1164 transitions. [2021-02-23 22:02:54,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-02-23 22:02:54,443 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:02:54,444 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:02:54,444 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 22:02:54,444 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:02:54,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:02:54,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1490946969, now seen corresponding path program 1 times [2021-02-23 22:02:54,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:02:54,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1945743899] [2021-02-23 22:02:54,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:02:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:54,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:54,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:54,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:54,535 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:54,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:54,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:54,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:54,537 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:54,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:54,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:54,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:54,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:54,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:54,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:54,834 WARN L202 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:02:54,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:02:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:54,878 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:54,879 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:54,880 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:54,880 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:54,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:02:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:54,888 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:54,889 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:54,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:02:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:54,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:54,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:54,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:02:54,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:54,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:54,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:54,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:02:54,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:54,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:54,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:54,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-23 22:02:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:54,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:54,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:54,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-23 22:02:54,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:54,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:54,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:54,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-23 22:02:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:54,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:54,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:54,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-02-23 22:02:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:54,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:54,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:54,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-02-23 22:02:54,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:54,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:54,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:54,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 22:02:54,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1945743899] [2021-02-23 22:02:54,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:02:54,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-23 22:02:54,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479133704] [2021-02-23 22:02:54,991 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-23 22:02:54,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:02:54,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-23 22:02:54,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-23 22:02:55,008 INFO L87 Difference]: Start difference. First operand 1008 states and 1164 transitions. Second operand 6 states. [2021-02-23 22:02:55,636 WARN L202 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:02:58,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:02:58,817 INFO L93 Difference]: Finished difference Result 2258 states and 2721 transitions. [2021-02-23 22:02:58,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-23 22:02:58,817 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2021-02-23 22:02:58,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:02:58,827 INFO L225 Difference]: With dead ends: 2258 [2021-02-23 22:02:58,827 INFO L226 Difference]: Without dead ends: 1365 [2021-02-23 22:02:58,832 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-02-23 22:02:58,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1365 states. [2021-02-23 22:02:59,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1365 to 1265. [2021-02-23 22:02:59,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1265 states. [2021-02-23 22:02:59,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1440 transitions. [2021-02-23 22:02:59,426 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1440 transitions. Word has length 182 [2021-02-23 22:02:59,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:02:59,427 INFO L480 AbstractCegarLoop]: Abstraction has 1265 states and 1440 transitions. [2021-02-23 22:02:59,432 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-23 22:02:59,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1440 transitions. [2021-02-23 22:02:59,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-02-23 22:02:59,436 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:02:59,437 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:02:59,437 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 22:02:59,437 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:02:59,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:02:59,440 INFO L82 PathProgramCache]: Analyzing trace with hash -2131034746, now seen corresponding path program 1 times [2021-02-23 22:02:59,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:02:59,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [757490869] [2021-02-23 22:02:59,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:02:59,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 22:02:59,543 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 22:02:59,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 22:02:59,638 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 22:02:59,862 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 22:02:59,862 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 22:02:59,863 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 22:03:00,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 10:03:00 BoogieIcfgContainer [2021-02-23 22:03:00,163 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 22:03:00,164 INFO L168 Benchmark]: Toolchain (without parser) took 32965.84 ms. Allocated memory was 157.3 MB in the beginning and 683.7 MB in the end (delta: 526.4 MB). Free memory was 132.8 MB in the beginning and 354.8 MB in the end (delta: -222.0 MB). Peak memory consumption was 305.1 MB. Max. memory is 8.0 GB. [2021-02-23 22:03:00,167 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 157.3 MB. Free memory is still 129.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 22:03:00,167 INFO L168 Benchmark]: CACSL2BoogieTranslator took 670.15 ms. Allocated memory is still 157.3 MB. Free memory was 131.6 MB in the beginning and 109.1 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-02-23 22:03:00,167 INFO L168 Benchmark]: Boogie Preprocessor took 94.26 ms. Allocated memory is still 157.3 MB. Free memory was 109.1 MB in the beginning and 105.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-23 22:03:00,169 INFO L168 Benchmark]: RCFGBuilder took 1851.21 ms. Allocated memory was 157.3 MB in the beginning and 192.9 MB in the end (delta: 35.7 MB). Free memory was 105.0 MB in the beginning and 152.5 MB in the end (delta: -47.5 MB). Peak memory consumption was 58.1 MB. Max. memory is 8.0 GB. [2021-02-23 22:03:00,170 INFO L168 Benchmark]: TraceAbstraction took 30329.27 ms. Allocated memory was 192.9 MB in the beginning and 683.7 MB in the end (delta: 490.7 MB). Free memory was 152.0 MB in the beginning and 354.8 MB in the end (delta: -202.8 MB). Peak memory consumption was 287.9 MB. Max. memory is 8.0 GB. [2021-02-23 22:03:00,182 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 157.3 MB. Free memory is still 129.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 670.15 ms. Allocated memory is still 157.3 MB. Free memory was 131.6 MB in the beginning and 109.1 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 94.26 ms. Allocated memory is still 157.3 MB. Free memory was 109.1 MB in the beginning and 105.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1851.21 ms. Allocated memory was 157.3 MB in the beginning and 192.9 MB in the end (delta: 35.7 MB). Free memory was 105.0 MB in the beginning and 152.5 MB in the end (delta: -47.5 MB). Peak memory consumption was 58.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 30329.27 ms. Allocated memory was 192.9 MB in the beginning and 683.7 MB in the end (delta: 490.7 MB). Free memory was 152.0 MB in the beginning and 354.8 MB in the end (delta: -202.8 MB). Peak memory consumption was 287.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 998]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L92] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=174, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=147, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=144, cleanupTimeShifts=174, head={182:166}, methaneLevelCritical=147, pumpRunning=0, systemActive=139, waterLevel=144] [L93] int systemActive = 1; VAL [\old(cleanupTimeShifts)=174, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=147, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=144, cleanupTimeShifts=174, head={182:166}, methaneLevelCritical=147, pumpRunning=0, systemActive=1, waterLevel=144] [L429] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=174, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=147, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=144, cleanupTimeShifts=174, head={182:166}, methaneLevelCritical=147, pumpRunning=0, systemActive=1, waterLevel=1] [L430] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=174, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=147, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=144, cleanupTimeShifts=174, head={182:166}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L701] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=174, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=147, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=144, cleanupTimeShifts=174, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L898] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=174, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=147, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L971] int retValue_acc ; 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] [L972] 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] [L976] 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] [L977] 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] [L978] 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] [L71] int retValue_acc ; 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] [L74] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L75] 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] [L978] 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] [L978] tmp = 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, tmp=1, valid_product()=1, waterLevel=1] [L980] 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] [L982] 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] [L983] 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] [L965] 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] [L360] int splverifierCounter ; 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] [L361] 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] [L362] int tmp___0 ; 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] [L363] int tmp___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=1] [L364] int tmp___2 ; 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] [L367] 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] [L369] 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] [L371] 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] [L377] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L379] 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] [L381] 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] [L447] COND TRUE waterLevel < 2 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] [L448] 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] [L381] 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] [L387] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L389] 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] [L397] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=0, waterLevel=2] [L399] COND FALSE !(\read(tmp___2)) 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___2=0, waterLevel=2] [L405] tmp___1 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=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] [L407] 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] [L409] 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] [L336] 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] [L343] 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] [L409] 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] [L416] 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] [L100] 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] [L107] 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] [L115] 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] [L1004] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1005] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1006] 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] [L1010] 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] [L468] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L471] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L472] 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] [L1010] 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] [L1010] tmp = 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, tmp=0, waterLevel=2] [L1012] 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] [L1016] 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] [L500] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L503] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L504] 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] [L1016] 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] [L1016] tmp___0 = 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, tmp___0=2, waterLevel=2] [L1018] 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] [L1020] 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] [L250] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L253] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L254] 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] [L1020] 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] [L1020] tmp___1 = 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, tmp___1=0, waterLevel=2] [L1022] 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] [L1026] 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] [L998] 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 45 procedures, 683 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 24.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1507 SDtfs, 2605 SDslu, 1733 SDs, 0 SdLazy, 4503 SolverSat, 949 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 8.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1265occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 403 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 1030 NumberOfCodeBlocks, 1030 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 843 ConstructedInterpolants, 0 QuantifiedInterpolants, 362457 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! Received shutdown request...