/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-19 17:05:07,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 17:05:07,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 17:05:07,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-19 17:05:07,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-19 17:05:07,517 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-19 17:05:07,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-19 17:05:07,524 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-19 17:05:07,527 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-19 17:05:07,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-19 17:05:07,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-19 17:05:07,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-19 17:05:07,531 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 17:05:07,533 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 17:05:07,534 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 17:05:07,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 17:05:07,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 17:05:07,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 17:05:07,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 17:05:07,551 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 17:05:07,552 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 17:05:07,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 17:05:07,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 17:05:07,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 17:05:07,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-19 17:05:07,561 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-19 17:05:07,561 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-19 17:05:07,562 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-19 17:05:07,562 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-19 17:05:07,563 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-19 17:05:07,564 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-19 17:05:07,565 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-19 17:05:07,566 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-19 17:05:07,566 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-19 17:05:07,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-19 17:05:07,568 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-19 17:05:07,569 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-19 17:05:07,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-19 17:05:07,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 17:05:07,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 17:05:07,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 17:05:07,572 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-19 17:05:07,598 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 17:05:07,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 17:05:07,600 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 17:05:07,600 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 17:05:07,600 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 17:05:07,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 17:05:07,601 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 17:05:07,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 17:05:07,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 17:05:07,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 17:05:07,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 17:05:07,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 17:05:07,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 17:05:07,603 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 17:05:07,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 17:05:07,603 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 17:05:07,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 17:05:07,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 17:05:07,604 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 17:05:07,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 17:05:07,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 17:05:07,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 17:05:07,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 17:05:07,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 17:05:07,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 17:05:07,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 17:05:07,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 17:05:07,607 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-19 17:05:07,607 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 17:05:08,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 17:05:08,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 17:05:08,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 17:05:08,044 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-19 17:05:08,045 INFO L275 PluginConnector]: CDTParser initialized [2021-02-19 17:05:08,046 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c [2021-02-19 17:05:08,120 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f79796e9/50ccf40fce4c43b38208fe3993b1fe67/FLAG320a65743 [2021-02-19 17:05:08,887 INFO L306 CDTParser]: Found 1 translation units. [2021-02-19 17:05:08,887 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c [2021-02-19 17:05:08,912 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f79796e9/50ccf40fce4c43b38208fe3993b1fe67/FLAG320a65743 [2021-02-19 17:05:09,144 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f79796e9/50ccf40fce4c43b38208fe3993b1fe67 [2021-02-19 17:05:09,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 17:05:09,161 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 17:05:09,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-19 17:05:09,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-19 17:05:09,175 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-19 17:05:09,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:05:09" (1/1) ... [2021-02-19 17:05:09,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@529f9725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:09, skipping insertion in model container [2021-02-19 17:05:09,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:05:09" (1/1) ... [2021-02-19 17:05:09,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-19 17:05:09,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-19 17:05:09,591 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_product51.cil.c[18465,18478] [2021-02-19 17:05:09,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:05:09,610 INFO L203 MainTranslator]: Completed pre-run [2021-02-19 17:05:09,730 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_product51.cil.c[18465,18478] [2021-02-19 17:05:09,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:05:09,800 INFO L208 MainTranslator]: Completed translation [2021-02-19 17:05:09,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:09 WrapperNode [2021-02-19 17:05:09,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-19 17:05:09,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 17:05:09,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 17:05:09,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 17:05:09,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:09" (1/1) ... [2021-02-19 17:05:09,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:09" (1/1) ... [2021-02-19 17:05:09,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:09" (1/1) ... [2021-02-19 17:05:09,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:09" (1/1) ... [2021-02-19 17:05:09,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:09" (1/1) ... [2021-02-19 17:05:09,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:09" (1/1) ... [2021-02-19 17:05:09,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:09" (1/1) ... [2021-02-19 17:05:09,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 17:05:09,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 17:05:09,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 17:05:09,923 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 17:05:09,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:09" (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 [2021-02-19 17:05:10,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-19 17:05:10,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 17:05:10,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-19 17:05:10,035 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-19 17:05:10,035 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-19 17:05:10,035 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-19 17:05:10,036 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-19 17:05:10,036 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-19 17:05:10,036 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-19 17:05:10,037 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-19 17:05:10,037 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-19 17:05:10,037 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2021-02-19 17:05:10,038 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-19 17:05:10,038 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-19 17:05:10,039 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-19 17:05:10,039 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-02-19 17:05:10,040 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-19 17:05:10,040 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-19 17:05:10,040 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-19 17:05:10,040 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-19 17:05:10,041 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-19 17:05:10,041 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-19 17:05:10,041 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-19 17:05:10,041 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2021-02-19 17:05:10,041 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-19 17:05:10,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-19 17:05:10,042 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-19 17:05:10,042 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-19 17:05:10,042 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-19 17:05:10,042 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-19 17:05:10,042 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-19 17:05:10,043 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-19 17:05:10,043 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-19 17:05:10,043 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-19 17:05:10,043 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-19 17:05:10,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-19 17:05:10,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-19 17:05:10,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-19 17:05:10,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-19 17:05:10,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-19 17:05:10,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-19 17:05:10,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-19 17:05:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-19 17:05:10,045 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-19 17:05:10,045 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-19 17:05:10,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-19 17:05:10,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-19 17:05:10,045 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-19 17:05:10,045 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-19 17:05:10,045 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-19 17:05:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-19 17:05:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-19 17:05:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-19 17:05:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-19 17:05:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-19 17:05:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2021-02-19 17:05:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-19 17:05:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-19 17:05:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-19 17:05:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-19 17:05:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-19 17:05:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-19 17:05:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-19 17:05:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-19 17:05:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-19 17:05:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-19 17:05:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-19 17:05:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-19 17:05:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-02-19 17:05:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2021-02-19 17:05:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-19 17:05:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-19 17:05:10,050 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-19 17:05:10,050 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-19 17:05:10,050 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-19 17:05:10,051 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-19 17:05:10,051 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-19 17:05:10,051 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-19 17:05:10,051 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-19 17:05:10,052 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-19 17:05:10,052 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-19 17:05:10,052 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-19 17:05:10,052 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-19 17:05:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-19 17:05:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-19 17:05:10,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-19 17:05:10,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-19 17:05:10,055 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-19 17:05:10,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-19 17:05:10,055 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-19 17:05:10,055 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-19 17:05:10,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-19 17:05:10,055 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-19 17:05:10,056 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-19 17:05:10,056 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-19 17:05:10,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-19 17:05:10,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-19 17:05:10,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 17:05:11,554 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 17:05:11,555 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-19 17:05:11,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:05:11 BoogieIcfgContainer [2021-02-19 17:05:11,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 17:05:11,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 17:05:11,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 17:05:11,563 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 17:05:11,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 05:05:09" (1/3) ... [2021-02-19 17:05:11,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d95d7d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:05:11, skipping insertion in model container [2021-02-19 17:05:11,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:09" (2/3) ... [2021-02-19 17:05:11,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d95d7d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:05:11, skipping insertion in model container [2021-02-19 17:05:11,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:05:11" (3/3) ... [2021-02-19 17:05:11,566 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product51.cil.c [2021-02-19 17:05:11,573 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 17:05:11,579 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 17:05:11,598 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-19 17:05:11,658 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 17:05:11,658 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 17:05:11,659 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 17:05:11,659 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 17:05:11,659 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 17:05:11,660 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 17:05:11,660 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 17:05:11,660 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 17:05:11,693 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2021-02-19 17:05:11,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-02-19 17:05:11,711 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:05:11,712 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] [2021-02-19 17:05:11,712 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:05:11,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:05:11,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1778123109, now seen corresponding path program 1 times [2021-02-19 17:05:11,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:05:11,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470905215] [2021-02-19 17:05:11,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:05:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:12,069 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:12,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:12,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:12,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:12,454 WARN L202 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:05:12,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:05:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:12,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:12,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:12,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:05:12,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:12,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:12,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:12,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:05:12,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:12,510 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:12,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:12,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:05:12,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:12,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:12,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:12,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:05:12,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:12,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:12,518 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:12,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-19 17:05:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:12,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:12,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:12,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-19 17:05:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:12,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:12,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:12,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-19 17:05:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:12,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:12,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:12,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:05:12,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470905215] [2021-02-19 17:05:12,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:05:12,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 17:05:12,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458315594] [2021-02-19 17:05:12,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 17:05:12,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:05:12,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 17:05:12,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 17:05:12,569 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 3 states. [2021-02-19 17:05:13,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:05:13,985 INFO L93 Difference]: Finished difference Result 323 states and 421 transitions. [2021-02-19 17:05:13,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 17:05:13,987 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2021-02-19 17:05:13,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:05:14,001 INFO L225 Difference]: With dead ends: 323 [2021-02-19 17:05:14,001 INFO L226 Difference]: Without dead ends: 174 [2021-02-19 17:05:14,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 17:05:14,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-02-19 17:05:14,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 140. [2021-02-19 17:05:14,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2021-02-19 17:05:14,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 165 transitions. [2021-02-19 17:05:14,140 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 165 transitions. Word has length 52 [2021-02-19 17:05:14,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:05:14,140 INFO L480 AbstractCegarLoop]: Abstraction has 140 states and 165 transitions. [2021-02-19 17:05:14,141 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-19 17:05:14,141 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 165 transitions. [2021-02-19 17:05:14,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-02-19 17:05:14,145 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:05:14,145 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] [2021-02-19 17:05:14,145 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 17:05:14,145 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:05:14,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:05:14,146 INFO L82 PathProgramCache]: Analyzing trace with hash -2036370936, now seen corresponding path program 1 times [2021-02-19 17:05:14,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:05:14,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735184887] [2021-02-19 17:05:14,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:05:14,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:14,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:14,234 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:14,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:14,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:14,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:14,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:14,546 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:05:14,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:05:14,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:14,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:14,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:14,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:05:14,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:14,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:14,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:14,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:05:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:14,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:14,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:14,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:05:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:14,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:14,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:14,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:05:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:14,593 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:14,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:14,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 17:05:14,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:14,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:14,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:14,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-19 17:05:14,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:14,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:14,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:14,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-19 17:05:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:14,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:14,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:14,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:05:14,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735184887] [2021-02-19 17:05:14,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:05:14,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-19 17:05:14,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101079630] [2021-02-19 17:05:14,619 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 17:05:14,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:05:14,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 17:05:14,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 17:05:14,621 INFO L87 Difference]: Start difference. First operand 140 states and 165 transitions. Second operand 4 states. [2021-02-19 17:05:15,268 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 17:05:16,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:05:16,294 INFO L93 Difference]: Finished difference Result 250 states and 304 transitions. [2021-02-19 17:05:16,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 17:05:16,296 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2021-02-19 17:05:16,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:05:16,310 INFO L225 Difference]: With dead ends: 250 [2021-02-19 17:05:16,310 INFO L226 Difference]: Without dead ends: 158 [2021-02-19 17:05:16,314 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-19 17:05:16,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-02-19 17:05:16,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 131. [2021-02-19 17:05:16,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2021-02-19 17:05:16,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 153 transitions. [2021-02-19 17:05:16,422 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 153 transitions. Word has length 53 [2021-02-19 17:05:16,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:05:16,423 INFO L480 AbstractCegarLoop]: Abstraction has 131 states and 153 transitions. [2021-02-19 17:05:16,423 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-19 17:05:16,423 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 153 transitions. [2021-02-19 17:05:16,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-02-19 17:05:16,428 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:05:16,428 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] [2021-02-19 17:05:16,428 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-19 17:05:16,429 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:05:16,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:05:16,431 INFO L82 PathProgramCache]: Analyzing trace with hash -656896791, now seen corresponding path program 1 times [2021-02-19 17:05:16,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:05:16,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135882989] [2021-02-19 17:05:16,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:05:16,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:16,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:16,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:16,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:16,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:16,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:16,554 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:16,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:16,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:16,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:16,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:05:16,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:16,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:05:16,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:16,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:05:16,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:16,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:16,927 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:05:16,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:05:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:17,025 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:17,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 17:05:17,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:05:17,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:17,030 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:17,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:17,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:05:17,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:17,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:17,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:17,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:05:17,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:17,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:17,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:17,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:05:17,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:17,055 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:17,055 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:17,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 17:05:17,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:17,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:17,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:17,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-19 17:05:17,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:17,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:17,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:17,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-02-19 17:05:17,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:17,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:17,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:17,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:05:17,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135882989] [2021-02-19 17:05:17,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:05:17,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-19 17:05:17,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763783647] [2021-02-19 17:05:17,081 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 17:05:17,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:05:17,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 17:05:17,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-19 17:05:17,082 INFO L87 Difference]: Start difference. First operand 131 states and 153 transitions. Second operand 8 states. [2021-02-19 17:05:17,627 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:05:18,053 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:05:18,482 WARN L202 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:05:18,839 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:05:19,717 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 17:05:21,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:05:21,928 INFO L93 Difference]: Finished difference Result 451 states and 558 transitions. [2021-02-19 17:05:21,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 17:05:21,928 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2021-02-19 17:05:21,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:05:21,951 INFO L225 Difference]: With dead ends: 451 [2021-02-19 17:05:21,951 INFO L226 Difference]: Without dead ends: 344 [2021-02-19 17:05:21,955 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-02-19 17:05:21,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2021-02-19 17:05:22,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 286. [2021-02-19 17:05:22,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2021-02-19 17:05:22,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 345 transitions. [2021-02-19 17:05:22,140 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 345 transitions. Word has length 57 [2021-02-19 17:05:22,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:05:22,142 INFO L480 AbstractCegarLoop]: Abstraction has 286 states and 345 transitions. [2021-02-19 17:05:22,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-19 17:05:22,142 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 345 transitions. [2021-02-19 17:05:22,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-02-19 17:05:22,153 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:05:22,153 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] [2021-02-19 17:05:22,154 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-19 17:05:22,154 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:05:22,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:05:22,154 INFO L82 PathProgramCache]: Analyzing trace with hash -2139343053, now seen corresponding path program 1 times [2021-02-19 17:05:22,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:05:22,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704960758] [2021-02-19 17:05:22,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:05:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:22,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:22,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:22,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:22,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:22,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:22,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:22,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:22,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:22,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:22,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:22,312 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:22,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:22,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:22,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:22,325 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:22,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:22,652 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:05:22,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:05:22,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:22,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:22,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 17:05:22,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:05:22,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:22,726 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:22,727 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:22,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:05:22,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:22,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:22,734 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:22,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:05:22,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:22,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:22,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:22,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:05:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:22,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:22,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:22,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 17:05:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:22,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:22,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:22,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-19 17:05:22,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:22,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:22,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:22,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-02-19 17:05:22,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:22,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:22,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:22,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 17:05:22,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:22,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:22,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:22,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:05:22,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704960758] [2021-02-19 17:05:22,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:05:22,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-19 17:05:22,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239085367] [2021-02-19 17:05:22,804 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 17:05:22,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:05:22,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 17:05:22,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-19 17:05:22,805 INFO L87 Difference]: Start difference. First operand 286 states and 345 transitions. Second operand 8 states. [2021-02-19 17:05:23,318 WARN L202 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:05:24,951 WARN L202 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:05:25,489 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:05:25,874 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:05:26,267 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:05:27,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:05:27,112 INFO L93 Difference]: Finished difference Result 878 states and 1149 transitions. [2021-02-19 17:05:27,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 17:05:27,113 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2021-02-19 17:05:27,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:05:27,119 INFO L225 Difference]: With dead ends: 878 [2021-02-19 17:05:27,119 INFO L226 Difference]: Without dead ends: 616 [2021-02-19 17:05:27,121 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-02-19 17:05:27,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2021-02-19 17:05:27,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 549. [2021-02-19 17:05:27,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 549 states. [2021-02-19 17:05:27,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 675 transitions. [2021-02-19 17:05:27,262 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 675 transitions. Word has length 63 [2021-02-19 17:05:27,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:05:27,262 INFO L480 AbstractCegarLoop]: Abstraction has 549 states and 675 transitions. [2021-02-19 17:05:27,262 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-19 17:05:27,262 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 675 transitions. [2021-02-19 17:05:27,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-02-19 17:05:27,265 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:05:27,266 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] [2021-02-19 17:05:27,266 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-19 17:05:27,266 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:05:27,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:05:27,267 INFO L82 PathProgramCache]: Analyzing trace with hash -630970695, now seen corresponding path program 1 times [2021-02-19 17:05:27,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:05:27,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610747179] [2021-02-19 17:05:27,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:05:27,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:05:27,334 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:05:27,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:05:27,394 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:05:27,470 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-19 17:05:27,470 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-19 17:05:27,470 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-19 17:05:27,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 05:05:27 BoogieIcfgContainer [2021-02-19 17:05:27,627 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 17:05:27,629 INFO L168 Benchmark]: Toolchain (without parser) took 18479.85 ms. Allocated memory was 166.7 MB in the beginning and 421.5 MB in the end (delta: 254.8 MB). Free memory was 140.8 MB in the beginning and 168.4 MB in the end (delta: -27.7 MB). Peak memory consumption was 227.7 MB. Max. memory is 8.0 GB. [2021-02-19 17:05:27,630 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 166.7 MB. Free memory is still 139.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-19 17:05:27,631 INFO L168 Benchmark]: CACSL2BoogieTranslator took 632.96 ms. Allocated memory is still 166.7 MB. Free memory was 139.6 MB in the beginning and 117.6 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-02-19 17:05:27,631 INFO L168 Benchmark]: Boogie Preprocessor took 116.26 ms. Allocated memory is still 166.7 MB. Free memory was 117.6 MB in the beginning and 146.7 MB in the end (delta: -29.1 MB). Peak memory consumption was 7.2 MB. Max. memory is 8.0 GB. [2021-02-19 17:05:27,632 INFO L168 Benchmark]: RCFGBuilder took 1635.06 ms. Allocated memory is still 166.7 MB. Free memory was 146.7 MB in the beginning and 57.0 MB in the end (delta: 89.7 MB). Peak memory consumption was 90.2 MB. Max. memory is 8.0 GB. [2021-02-19 17:05:27,633 INFO L168 Benchmark]: TraceAbstraction took 16068.19 ms. Allocated memory was 166.7 MB in the beginning and 421.5 MB in the end (delta: 254.8 MB). Free memory was 56.5 MB in the beginning and 168.4 MB in the end (delta: -111.9 MB). Peak memory consumption was 142.9 MB. Max. memory is 8.0 GB. [2021-02-19 17:05:27,643 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 166.7 MB. Free memory is still 139.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 632.96 ms. Allocated memory is still 166.7 MB. Free memory was 139.6 MB in the beginning and 117.6 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 116.26 ms. Allocated memory is still 166.7 MB. Free memory was 117.6 MB in the beginning and 146.7 MB in the end (delta: -29.1 MB). Peak memory consumption was 7.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1635.06 ms. Allocated memory is still 166.7 MB. Free memory was 146.7 MB in the beginning and 57.0 MB in the end (delta: 89.7 MB). Peak memory consumption was 90.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 16068.19 ms. Allocated memory was 166.7 MB in the beginning and 421.5 MB in the end (delta: 254.8 MB). Free memory was 56.5 MB in the beginning and 168.4 MB in the end (delta: -111.9 MB). Peak memory consumption was 142.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 979]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int waterLevel = 1; [L51] int methaneLevelCritical = 0; [L227] int pumpRunning = 0; [L228] int systemActive = 1; [L475] int cleanupTimeShifts = 4; [L778] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=180, \old(head)=171, \old(head)=182, \old(methaneLevelCritical)=150, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=146, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L551] int retValue_acc ; [L552] 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] [L556] 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] [L557] 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] [L558] 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] [L600] int retValue_acc ; [L603] retValue_acc = 1 [L604] 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] [L558] 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] [L558] tmp = valid_product() [L560] 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] [L562] 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] [L563] 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] [L542] 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] [L157] int splverifierCounter ; [L158] int tmp ; [L159] int tmp___0 ; [L160] int tmp___1 ; [L161] int tmp___2 ; [L164] 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] [L166] 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] [L168] 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] [L174] tmp = __VERIFIER_nondet_int() [L176] 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] [L178] 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] [L68] COND TRUE waterLevel < 2 [L69] 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] [L178] 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] [L184] tmp___0 = __VERIFIER_nondet_int() [L186] 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] [L194] tmp___2 = __VERIFIER_nondet_int() [L196] COND FALSE !(\read(tmp___2)) [L200] tmp___1 = __VERIFIER_nondet_int() [L202] 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=-2, tmp___2=0, waterLevel=2] [L204] 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] [L428] 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] [L435] 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] [L204] 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=-2, tmp___2=0, waterLevel=2] [L211] 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] [L235] 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] [L242] 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] [L250] 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] [L442] int tmp ; [L443] int tmp___0 ; [L444] 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] [L448] 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] [L89] int retValue_acc ; [L92] retValue_acc = methaneLevelCritical [L93] 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] [L448] 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] [L448] tmp = isMethaneLevelCritical() [L450] 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] [L454] 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] [L121] int retValue_acc ; [L124] retValue_acc = waterLevel [L125] 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] [L454] 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] [L454] tmp___0 = getWaterLevel() [L456] 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] [L458] 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] [L342] int retValue_acc ; [L345] retValue_acc = pumpRunning [L346] 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] [L458] 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] [L458] tmp___1 = isPumpRunning() [L460] 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] [L464] 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] [L979] 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 42 procedures, 247 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 517 SDtfs, 999 SDslu, 343 SDs, 0 SdLazy, 1974 SolverSat, 584 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=549occurred 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: 0.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 186 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 65502 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...