/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_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 22:01:10,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 22:01:10,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 22:01:10,616 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 22:01:10,616 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 22:01:10,618 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 22:01:10,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 22:01:10,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 22:01:10,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 22:01:10,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 22:01:10,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 22:01:10,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 22:01:10,641 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 22:01:10,642 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 22:01:10,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 22:01:10,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 22:01:10,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 22:01:10,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 22:01:10,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 22:01:10,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 22:01:10,658 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 22:01:10,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 22:01:10,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 22:01:10,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 22:01:10,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 22:01:10,666 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 22:01:10,666 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 22:01:10,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 22:01:10,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 22:01:10,669 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 22:01:10,669 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 22:01:10,670 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 22:01:10,671 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 22:01:10,672 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 22:01:10,673 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 22:01:10,673 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 22:01:10,674 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 22:01:10,674 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 22:01:10,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 22:01:10,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 22:01:10,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 22:01:10,677 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 22:01:10,689 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 22:01:10,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 22:01:10,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 22:01:10,691 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 22:01:10,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 22:01:10,692 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 22:01:10,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 22:01:10,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 22:01:10,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 22:01:10,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 22:01:10,693 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 22:01:10,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 22:01:10,693 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 22:01:10,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 22:01:10,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 22:01:10,694 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 22:01:10,694 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 22:01:10,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 22:01:10,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 22:01:10,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 22:01:10,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 22:01:10,695 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 22:01:10,695 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 22:01:11,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 22:01:11,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 22:01:11,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 22:01:11,110 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 22:01:11,111 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 22:01:11,112 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product40.cil.c [2021-02-23 22:01:11,180 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/643dc58ef/ba396c50f5cd40c0abf95a43d73f4155/FLAGafb0b33dd [2021-02-23 22:01:11,890 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 22:01:11,891 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product40.cil.c [2021-02-23 22:01:11,910 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/643dc58ef/ba396c50f5cd40c0abf95a43d73f4155/FLAGafb0b33dd [2021-02-23 22:01:12,206 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/643dc58ef/ba396c50f5cd40c0abf95a43d73f4155 [2021-02-23 22:01:12,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 22:01:12,223 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 22:01:12,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 22:01:12,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 22:01:12,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 22:01:12,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 10:01:12" (1/1) ... [2021-02-23 22:01:12,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4055b102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:12, skipping insertion in model container [2021-02-23 22:01:12,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 10:01:12" (1/1) ... [2021-02-23 22:01:12,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 22:01:12,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 22:01:12,487 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_product40.cil.c[3612,3625] [2021-02-23 22:01:12,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 22:01:12,664 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 22:01:12,708 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_product40.cil.c[3612,3625] [2021-02-23 22:01:12,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 22:01:12,828 INFO L208 MainTranslator]: Completed translation [2021-02-23 22:01:12,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:12 WrapperNode [2021-02-23 22:01:12,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 22:01:12,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 22:01:12,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 22:01:12,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 22:01:12,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:12" (1/1) ... [2021-02-23 22:01:12,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:12" (1/1) ... [2021-02-23 22:01:12,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:12" (1/1) ... [2021-02-23 22:01:12,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:12" (1/1) ... [2021-02-23 22:01:12,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:12" (1/1) ... [2021-02-23 22:01:12,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:12" (1/1) ... [2021-02-23 22:01:12,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:12" (1/1) ... [2021-02-23 22:01:12,922 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 22:01:12,923 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 22:01:12,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 22:01:12,924 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 22:01:12,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:12" (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 22:01:13,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 22:01:13,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 22:01:13,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-23 22:01:13,026 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 22:01:13,026 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-23 22:01:13,027 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-23 22:01:13,027 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-23 22:01:13,028 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-23 22:01:13,028 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 22:01:13,028 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-23 22:01:13,029 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-23 22:01:13,029 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-23 22:01:13,029 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-23 22:01:13,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-23 22:01:13,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-23 22:01:13,030 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-23 22:01:13,048 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-23 22:01:13,056 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-23 22:01:13,056 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-23 22:01:13,056 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-23 22:01:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-23 22:01:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-23 22:01:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-23 22:01:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-23 22:01:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-02-23 22:01:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-23 22:01:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-23 22:01:13,060 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-23 22:01:13,060 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-23 22:01:13,060 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-23 22:01:13,060 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-23 22:01:13,060 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-23 22:01:13,060 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-23 22:01:13,060 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-23 22:01:13,061 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-23 22:01:13,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-23 22:01:13,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-23 22:01:13,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-23 22:01:13,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-23 22:01:13,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-23 22:01:13,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-23 22:01:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 22:01:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 22:01:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 22:01:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 22:01:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 22:01:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-23 22:01:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-23 22:01:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-23 22:01:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-23 22:01:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-23 22:01:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-23 22:01:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-23 22:01:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-23 22:01:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-23 22:01:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-23 22:01:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-23 22:01:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-23 22:01:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-23 22:01:13,065 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 22:01:13,065 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-23 22:01:13,065 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-23 22:01:13,065 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-23 22:01:13,065 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-23 22:01:13,065 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-23 22:01:13,065 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-23 22:01:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-23 22:01:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-23 22:01:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-23 22:01:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-23 22:01:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-23 22:01:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-23 22:01:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-23 22:01:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-23 22:01:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-23 22:01:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-23 22:01:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-02-23 22:01:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-23 22:01:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 22:01:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 22:01:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-23 22:01:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 22:01:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 22:01:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 22:01:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 22:01:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-23 22:01:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 22:01:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-23 22:01:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-23 22:01:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 22:01:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-23 22:01:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-23 22:01:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-23 22:01:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 22:01:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 22:01:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 22:01:14,196 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 22:01:14,197 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 22:01:14,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 10:01:14 BoogieIcfgContainer [2021-02-23 22:01:14,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 22:01:14,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 22:01:14,202 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 22:01:14,205 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 22:01:14,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 10:01:12" (1/3) ... [2021-02-23 22:01:14,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7710c2f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 10:01:14, skipping insertion in model container [2021-02-23 22:01:14,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:12" (2/3) ... [2021-02-23 22:01:14,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7710c2f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 10:01:14, skipping insertion in model container [2021-02-23 22:01:14,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 10:01:14" (3/3) ... [2021-02-23 22:01:14,209 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product40.cil.c [2021-02-23 22:01:14,215 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 22:01:14,221 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 22:01:14,241 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 22:01:14,266 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 22:01:14,266 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 22:01:14,266 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 22:01:14,266 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 22:01:14,266 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 22:01:14,267 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 22:01:14,267 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 22:01:14,267 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 22:01:14,291 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states. [2021-02-23 22:01:14,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-23 22:01:14,313 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:01:14,314 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 22:01:14,314 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:01:14,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:01:14,321 INFO L82 PathProgramCache]: Analyzing trace with hash 2090364852, now seen corresponding path program 1 times [2021-02-23 22:01:14,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:01:14,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [300684092] [2021-02-23 22:01:14,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:01:14,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:14,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:14,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:14,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:14,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:15,020 WARN L202 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:01:15,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:01:15,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:15,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:15,125 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:15,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:01:15,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:15,142 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:15,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:15,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:01:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:15,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:15,146 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:15,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:01:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:15,150 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:15,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:15,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:01:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:15,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:15,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:15,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-23 22:01:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:15,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:15,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:15,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 22:01:15,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:15,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:15,162 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:15,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 22:01:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:15,165 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:15,166 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:15,225 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 22:01:15,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [300684092] [2021-02-23 22:01:15,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:01:15,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 22:01:15,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433377722] [2021-02-23 22:01:15,236 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 22:01:15,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:01:15,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 22:01:15,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 22:01:15,253 INFO L87 Difference]: Start difference. First operand 328 states. Second operand 3 states. [2021-02-23 22:01:16,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:01:16,916 INFO L93 Difference]: Finished difference Result 518 states and 617 transitions. [2021-02-23 22:01:16,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 22:01:16,918 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-23 22:01:16,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:01:16,954 INFO L225 Difference]: With dead ends: 518 [2021-02-23 22:01:16,955 INFO L226 Difference]: Without dead ends: 320 [2021-02-23 22:01:16,965 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 22:01:16,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2021-02-23 22:01:17,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 276. [2021-02-23 22:01:17,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2021-02-23 22:01:17,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 301 transitions. [2021-02-23 22:01:17,217 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 301 transitions. Word has length 158 [2021-02-23 22:01:17,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:01:17,220 INFO L480 AbstractCegarLoop]: Abstraction has 276 states and 301 transitions. [2021-02-23 22:01:17,220 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 22:01:17,220 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 301 transitions. [2021-02-23 22:01:17,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-23 22:01:17,237 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:01:17,238 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 22:01:17,238 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 22:01:17,238 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:01:17,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:01:17,240 INFO L82 PathProgramCache]: Analyzing trace with hash 117416096, now seen corresponding path program 1 times [2021-02-23 22:01:17,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:01:17,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1121798985] [2021-02-23 22:01:17,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:01:17,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:17,371 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:17,372 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:17,373 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:17,373 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:17,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:17,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:17,663 WARN L202 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:01:17,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:01:17,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:17,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:17,734 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:17,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:01:17,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:17,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:17,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:17,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:01:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:17,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:17,745 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:17,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:01:17,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:17,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:17,748 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:17,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:01:17,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:17,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:17,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:17,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 22:01:17,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:17,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:17,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:17,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-23 22:01:17,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:17,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:17,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:17,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-23 22:01:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:17,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:17,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:17,821 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 22:01:17,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1121798985] [2021-02-23 22:01:17,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:01:17,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 22:01:17,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480011399] [2021-02-23 22:01:17,824 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 22:01:17,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:01:17,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 22:01:17,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 22:01:17,825 INFO L87 Difference]: Start difference. First operand 276 states and 301 transitions. Second operand 4 states. [2021-02-23 22:01:18,495 WARN L202 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 22:01:19,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:01:19,704 INFO L93 Difference]: Finished difference Result 424 states and 479 transitions. [2021-02-23 22:01:19,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 22:01:19,705 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-23 22:01:19,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:01:19,710 INFO L225 Difference]: With dead ends: 424 [2021-02-23 22:01:19,710 INFO L226 Difference]: Without dead ends: 303 [2021-02-23 22:01:19,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 22:01:19,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2021-02-23 22:01:19,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 266. [2021-02-23 22:01:19,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2021-02-23 22:01:19,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 288 transitions. [2021-02-23 22:01:19,801 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 288 transitions. Word has length 159 [2021-02-23 22:01:19,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:01:19,802 INFO L480 AbstractCegarLoop]: Abstraction has 266 states and 288 transitions. [2021-02-23 22:01:19,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 22:01:19,802 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 288 transitions. [2021-02-23 22:01:19,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-02-23 22:01:19,805 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:01:19,805 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 22:01:19,806 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 22:01:19,806 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:01:19,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:01:19,807 INFO L82 PathProgramCache]: Analyzing trace with hash 222492372, now seen corresponding path program 1 times [2021-02-23 22:01:19,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:01:19,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1787479348] [2021-02-23 22:01:19,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:01:19,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:19,896 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:19,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:19,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:19,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:19,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:19,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:19,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:19,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:19,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:19,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:01:19,914 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:19,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:20,268 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:01:20,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:01:20,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:20,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:20,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:20,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:01:20,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:20,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:20,318 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:20,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:01:20,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:20,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:20,321 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:20,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:01:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:20,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:20,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:20,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:20,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:01:20,350 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:20,351 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:01:20,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:01:20,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:20,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:20,366 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:20,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-23 22:01:20,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:20,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:20,384 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:20,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-23 22:01:20,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:20,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:20,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:20,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-23 22:01:20,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:20,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:20,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:20,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-02-23 22:01:20,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:20,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:20,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:20,444 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 22:01:20,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1787479348] [2021-02-23 22:01:20,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:01:20,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 22:01:20,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821169897] [2021-02-23 22:01:20,445 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 22:01:20,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:01:20,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 22:01:20,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-23 22:01:20,447 INFO L87 Difference]: Start difference. First operand 266 states and 288 transitions. Second operand 10 states. [2021-02-23 22:01:21,130 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:01:21,547 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 22:01:21,920 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-23 22:01:22,302 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:01:22,665 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:01:23,018 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:01:24,012 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 22:01:26,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:01:26,742 INFO L93 Difference]: Finished difference Result 734 states and 856 transitions. [2021-02-23 22:01:26,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-23 22:01:26,743 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2021-02-23 22:01:26,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:01:26,749 INFO L225 Difference]: With dead ends: 734 [2021-02-23 22:01:26,749 INFO L226 Difference]: Without dead ends: 583 [2021-02-23 22:01:26,751 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2021-02-23 22:01:26,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2021-02-23 22:01:26,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 488. [2021-02-23 22:01:26,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2021-02-23 22:01:26,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 547 transitions. [2021-02-23 22:01:26,959 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 547 transitions. Word has length 172 [2021-02-23 22:01:26,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:01:26,960 INFO L480 AbstractCegarLoop]: Abstraction has 488 states and 547 transitions. [2021-02-23 22:01:26,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 22:01:26,960 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 547 transitions. [2021-02-23 22:01:26,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-02-23 22:01:26,964 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:01:26,964 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 22:01:26,964 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 22:01:26,964 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:01:26,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:01:26,965 INFO L82 PathProgramCache]: Analyzing trace with hash 569625473, now seen corresponding path program 1 times [2021-02-23 22:01:26,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:01:26,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [593100629] [2021-02-23 22:01:26,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:01:26,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:27,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:27,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:27,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:27,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:27,050 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:27,050 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:27,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:27,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:27,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:27,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:27,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:27,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:27,057 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:27,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:27,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:27,063 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:27,393 WARN L202 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:01:27,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:01:27,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:27,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:27,440 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:27,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:27,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 22:01:27,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:01:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:27,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:27,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:27,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:01:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:27,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:27,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:27,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:01:27,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:27,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:27,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:27,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:01:27,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:27,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:27,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:27,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-23 22:01:27,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:27,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:27,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:27,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-23 22:01:27,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:27,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:27,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:27,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-02-23 22:01:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:27,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:27,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:27,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:27,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:27,493 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:27,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:27,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-02-23 22:01:27,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:27,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:27,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:27,553 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 22:01:27,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [593100629] [2021-02-23 22:01:27,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:01:27,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 22:01:27,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106570868] [2021-02-23 22:01:27,555 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 22:01:27,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:01:27,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 22:01:27,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-23 22:01:27,556 INFO L87 Difference]: Start difference. First operand 488 states and 547 transitions. Second operand 9 states. [2021-02-23 22:01:28,154 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:01:30,293 WARN L202 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:01:30,654 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:01:31,078 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:01:31,518 WARN L202 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:01:31,884 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:01:32,259 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:01:32,621 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:01:33,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:01:33,774 INFO L93 Difference]: Finished difference Result 1316 states and 1590 transitions. [2021-02-23 22:01:33,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-23 22:01:33,775 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 177 [2021-02-23 22:01:33,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:01:33,782 INFO L225 Difference]: With dead ends: 1316 [2021-02-23 22:01:33,783 INFO L226 Difference]: Without dead ends: 943 [2021-02-23 22:01:33,785 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-23 22:01:33,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2021-02-23 22:01:34,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 840. [2021-02-23 22:01:34,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 840 states. [2021-02-23 22:01:34,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 966 transitions. [2021-02-23 22:01:34,133 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 966 transitions. Word has length 177 [2021-02-23 22:01:34,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:01:34,133 INFO L480 AbstractCegarLoop]: Abstraction has 840 states and 966 transitions. [2021-02-23 22:01:34,133 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 22:01:34,133 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 966 transitions. [2021-02-23 22:01:34,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-02-23 22:01:34,138 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:01:34,138 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 22:01:34,139 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 22:01:34,139 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:01:34,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:01:34,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1181063877, now seen corresponding path program 1 times [2021-02-23 22:01:34,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:01:34,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [614963002] [2021-02-23 22:01:34,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:01:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 22:01:34,234 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 22:01:34,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 22:01:34,367 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 22:01:34,634 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 22:01:34,634 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 22:01:34,635 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 22:01:34,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 10:01:34 BoogieIcfgContainer [2021-02-23 22:01:34,847 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 22:01:34,848 INFO L168 Benchmark]: Toolchain (without parser) took 22636.24 ms. Allocated memory was 181.4 MB in the beginning and 577.8 MB in the end (delta: 396.4 MB). Free memory was 157.5 MB in the beginning and 475.2 MB in the end (delta: -317.7 MB). Peak memory consumption was 347.6 MB. Max. memory is 8.0 GB. [2021-02-23 22:01:34,849 INFO L168 Benchmark]: CDTParser took 4.25 ms. Allocated memory is still 181.4 MB. Free memory is still 153.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 22:01:34,849 INFO L168 Benchmark]: CACSL2BoogieTranslator took 601.20 ms. Allocated memory is still 181.4 MB. Free memory was 156.5 MB in the beginning and 135.4 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-23 22:01:34,850 INFO L168 Benchmark]: Boogie Preprocessor took 91.93 ms. Allocated memory is still 181.4 MB. Free memory was 135.4 MB in the beginning and 131.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-23 22:01:34,851 INFO L168 Benchmark]: RCFGBuilder took 1276.74 ms. Allocated memory was 181.4 MB in the beginning and 218.1 MB in the end (delta: 36.7 MB). Free memory was 131.3 MB in the beginning and 197.4 MB in the end (delta: -66.1 MB). Peak memory consumption was 73.7 MB. Max. memory is 8.0 GB. [2021-02-23 22:01:34,851 INFO L168 Benchmark]: TraceAbstraction took 20645.34 ms. Allocated memory was 218.1 MB in the beginning and 577.8 MB in the end (delta: 359.7 MB). Free memory was 196.9 MB in the beginning and 475.2 MB in the end (delta: -278.3 MB). Peak memory consumption was 349.8 MB. Max. memory is 8.0 GB. [2021-02-23 22:01:34,854 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 4.25 ms. Allocated memory is still 181.4 MB. Free memory is still 153.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 601.20 ms. Allocated memory is still 181.4 MB. Free memory was 156.5 MB in the beginning and 135.4 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 91.93 ms. Allocated memory is still 181.4 MB. Free memory was 135.4 MB in the beginning and 131.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1276.74 ms. Allocated memory was 181.4 MB in the beginning and 218.1 MB in the end (delta: 36.7 MB). Free memory was 131.3 MB in the beginning and 197.4 MB in the end (delta: -66.1 MB). Peak memory consumption was 73.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 20645.34 ms. Allocated memory was 218.1 MB in the beginning and 577.8 MB in the end (delta: 359.7 MB). Free memory was 196.9 MB in the beginning and 475.2 MB in the end (delta: -278.3 MB). Peak memory consumption was 349.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 223]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=178, \old(head)=182, \old(head)=169, \old(methaneLevelCritical)=148, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=143, cleanupTimeShifts=4, head={182:169}, methaneLevelCritical=148, pumpRunning=139, systemActive=138, waterLevel=143] [L231] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=178, \old(head)=169, \old(head)=182, \old(methaneLevelCritical)=148, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=143, cleanupTimeShifts=4, head={182:169}, methaneLevelCritical=148, pumpRunning=139, systemActive=138, waterLevel=1] [L232] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=178, \old(head)=169, \old(head)=182, \old(methaneLevelCritical)=148, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=143, cleanupTimeShifts=4, head={182:169}, methaneLevelCritical=0, pumpRunning=139, systemActive=138, waterLevel=1] [L329] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=178, \old(head)=169, \old(head)=182, \old(methaneLevelCritical)=148, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=143, cleanupTimeShifts=4, head={182:169}, methaneLevelCritical=0, pumpRunning=0, systemActive=138, waterLevel=1] [L330] int systemActive = 1; VAL [\old(cleanupTimeShifts)=178, \old(head)=169, \old(head)=182, \old(methaneLevelCritical)=148, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=143, cleanupTimeShifts=4, head={182:169}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L768] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=178, \old(head)=169, \old(head)=182, \old(methaneLevelCritical)=148, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=143, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] 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] [L124] 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] [L128] 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] [L129] 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] [L130] 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] [L172] 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] [L175] 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] [L176] 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] [L130] 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] [L130] 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] [L132] 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] [L134] 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] [L135] 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] [L114] 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] [L531] 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] [L532] 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] [L533] 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] [L534] 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] [L535] 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] [L538] 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] [L540] 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] [L542] 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] [L548] 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] [L550] 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] [L552] 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] [L249] 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] [L250] 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] [L552] 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] [L558] 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] [L560] 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] [L568] 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] [L570] 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] [L576] 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] [L578] 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] [L580] 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] [L510] 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] [L517] 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] [L580] 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] [L587] 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] [L336] 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] [L343] 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] [L351] 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] [L186] 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] [L187] 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] [L188] 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] [L192] 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] [L270] 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] [L273] 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] [L274] 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] [L192] 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] [L192] 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] [L194] 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] [L198] 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] [L302] 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] [L305] 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] [L306] 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] [L198] 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] [L198] 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] [L200] 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] [L202] 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] [L443] 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] [L446] 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] [L447] 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] [L202] 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] [L202] 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] [L204] 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] [L208] 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] [L223] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 643 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 16.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1068 SDtfs, 1628 SDslu, 1612 SDs, 0 SdLazy, 3381 SolverSat, 578 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 6.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=840occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 4 MinimizatonAttempts, 279 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 848 NumberOfCodeBlocks, 848 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 662 ConstructedInterpolants, 0 QuantifiedInterpolants, 274119 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...