/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:03:26,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:03:26,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:03:27,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:03:27,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:03:27,020 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:03:27,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:03:27,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:03:27,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:03:27,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:03:27,028 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:03:27,029 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:03:27,030 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:03:27,031 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:03:27,032 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:03:27,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:03:27,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:03:27,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:03:27,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:03:27,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:03:27,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:03:27,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:03:27,044 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:03:27,045 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:03:27,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:03:27,048 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:03:27,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:03:27,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:03:27,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:03:27,063 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:03:27,063 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:03:27,064 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:03:27,065 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:03:27,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:03:27,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:03:27,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:03:27,071 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:03:27,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:03:27,073 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:03:27,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:03:27,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:03:27,076 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 00:03:27,099 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:03:27,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:03:27,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:03:27,102 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:03:27,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:03:27,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:03:27,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:03:27,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:03:27,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:03:27,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:03:27,104 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:03:27,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:03:27,104 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:03:27,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:03:27,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:03:27,105 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:03:27,105 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:03:27,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:03:27,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:03:27,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:03:27,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:03:27,106 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:03:27,106 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:03:27,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:03:27,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:03:27,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:03:27,523 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:03:27,523 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:03:27,524 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2020-11-07 00:03:27,608 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e327d680/eb0c7d6d4ed74d4abcfbcec7b406d694/FLAG97d887cab [2020-11-07 00:03:28,345 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:03:28,346 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2020-11-07 00:03:28,371 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e327d680/eb0c7d6d4ed74d4abcfbcec7b406d694/FLAG97d887cab [2020-11-07 00:03:28,578 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e327d680/eb0c7d6d4ed74d4abcfbcec7b406d694 [2020-11-07 00:03:28,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:03:28,600 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:03:28,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:03:28,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:03:28,608 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:03:28,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:03:28" (1/1) ... [2020-11-07 00:03:28,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@692ad141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:28, skipping insertion in model container [2020-11-07 00:03:28,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:03:28" (1/1) ... [2020-11-07 00:03:28,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:03:28,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:03:29,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:03:29,031 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:03:29,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:03:29,231 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:03:29,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:29 WrapperNode [2020-11-07 00:03:29,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:03:29,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:03:29,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:03:29,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:03:29,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:29" (1/1) ... [2020-11-07 00:03:29,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:29" (1/1) ... [2020-11-07 00:03:29,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:29" (1/1) ... [2020-11-07 00:03:29,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:29" (1/1) ... [2020-11-07 00:03:29,315 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:29" (1/1) ... [2020-11-07 00:03:29,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:29" (1/1) ... [2020-11-07 00:03:29,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:29" (1/1) ... [2020-11-07 00:03:29,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:03:29,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:03:29,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:03:29,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:03:29,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:29" (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 [2020-11-07 00:03:29,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:03:29,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:03:29,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 00:03:29,427 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:03:29,428 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 00:03:29,428 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 00:03:29,428 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 00:03:29,428 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 00:03:29,428 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 00:03:29,429 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 00:03:29,429 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-11-07 00:03:29,429 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-11-07 00:03:29,429 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 00:03:29,430 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-11-07 00:03:29,430 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 00:03:29,430 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 00:03:29,430 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 00:03:29,431 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 00:03:29,431 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 00:03:29,431 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-11-07 00:03:29,432 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-11-07 00:03:29,432 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-07 00:03:29,434 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-11-07 00:03:29,435 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 00:03:29,435 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 00:03:29,435 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 00:03:29,436 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 00:03:29,436 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 00:03:29,436 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 00:03:29,436 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 00:03:29,436 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-11-07 00:03:29,436 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-11-07 00:03:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 00:03:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 00:03:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 00:03:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 00:03:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 00:03:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 00:03:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 00:03:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 00:03:29,438 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 00:03:29,438 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 00:03:29,438 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:03:29,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 00:03:29,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:03:29,438 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:03:29,438 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:03:29,439 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:03:29,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:03:29,439 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:03:29,439 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 00:03:29,439 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 00:03:29,439 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 00:03:29,439 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 00:03:29,439 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 00:03:29,440 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 00:03:29,440 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 00:03:29,440 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 00:03:29,440 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-11-07 00:03:29,440 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-11-07 00:03:29,440 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 00:03:29,440 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 00:03:29,440 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 00:03:29,441 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 00:03:29,441 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 00:03:29,441 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-07 00:03:29,441 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-11-07 00:03:29,441 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:03:29,441 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 00:03:29,441 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 00:03:29,441 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-11-07 00:03:29,442 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-11-07 00:03:29,442 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-11-07 00:03:29,442 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-11-07 00:03:29,442 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 00:03:29,443 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-11-07 00:03:29,443 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 00:03:29,443 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 00:03:29,443 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 00:03:29,443 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 00:03:29,444 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 00:03:29,444 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 00:03:29,444 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 00:03:29,444 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 00:03:29,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:03:29,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:03:29,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:03:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:03:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 00:03:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:03:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 00:03:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 00:03:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:03:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 00:03:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 00:03:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 00:03:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 00:03:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 00:03:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 00:03:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:03:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 00:03:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:03:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:03:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:03:30,876 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:03:30,877 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 00:03:30,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:03:30 BoogieIcfgContainer [2020-11-07 00:03:30,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:03:30,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:03:30,883 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:03:30,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:03:30,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:03:28" (1/3) ... [2020-11-07 00:03:30,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d595a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:03:30, skipping insertion in model container [2020-11-07 00:03:30,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:29" (2/3) ... [2020-11-07 00:03:30,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d595a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:03:30, skipping insertion in model container [2020-11-07 00:03:30,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:03:30" (3/3) ... [2020-11-07 00:03:30,890 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2020-11-07 00:03:30,906 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:03:30,910 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 00:03:30,924 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 00:03:30,949 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:03:30,949 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:03:30,949 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:03:30,950 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:03:30,950 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:03:30,950 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:03:30,950 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:03:30,950 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:03:30,974 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states. [2020-11-07 00:03:30,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 00:03:30,997 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:03:30,998 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] [2020-11-07 00:03:30,998 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:03:31,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:03:31,005 INFO L82 PathProgramCache]: Analyzing trace with hash -995804249, now seen corresponding path program 1 times [2020-11-07 00:03:31,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:03:31,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [908515310] [2020-11-07 00:03:31,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:03:31,098 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:03:31,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:31,828 WARN L194 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:03:31,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:03:31,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:31,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:03:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:31,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:03:31,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:32,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:03:32,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:32,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:03:32,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:32,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 00:03:32,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:32,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:03:32,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:32,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:03:32,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:32,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:03:32,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [908515310] [2020-11-07 00:03:32,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:03:32,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 00:03:32,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738624601] [2020-11-07 00:03:32,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 00:03:32,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:03:32,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 00:03:32,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:03:32,114 INFO L87 Difference]: Start difference. First operand 371 states. Second operand 3 states. [2020-11-07 00:03:34,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:03:34,256 INFO L93 Difference]: Finished difference Result 606 states and 721 transitions. [2020-11-07 00:03:34,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 00:03:34,258 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-07 00:03:34,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:03:34,289 INFO L225 Difference]: With dead ends: 606 [2020-11-07 00:03:34,289 INFO L226 Difference]: Without dead ends: 365 [2020-11-07 00:03:34,295 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 [2020-11-07 00:03:34,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2020-11-07 00:03:34,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 317. [2020-11-07 00:03:34,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-11-07 00:03:34,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 349 transitions. [2020-11-07 00:03:34,489 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 349 transitions. Word has length 159 [2020-11-07 00:03:34,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:03:34,490 INFO L481 AbstractCegarLoop]: Abstraction has 317 states and 349 transitions. [2020-11-07 00:03:34,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 00:03:34,491 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 349 transitions. [2020-11-07 00:03:34,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 00:03:34,496 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:03:34,496 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] [2020-11-07 00:03:34,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:03:34,496 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:03:34,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:03:34,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1204769495, now seen corresponding path program 1 times [2020-11-07 00:03:34,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:03:34,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [262396092] [2020-11-07 00:03:34,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:03:34,506 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:03:34,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:35,007 WARN L194 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:03:35,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:03:35,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:35,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:03:35,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:35,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:03:35,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:35,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:03:35,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:35,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:03:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:35,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-07 00:03:35,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:35,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:03:35,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:35,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 00:03:35,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:35,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:03:35,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [262396092] [2020-11-07 00:03:35,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:03:35,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:03:35,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495251474] [2020-11-07 00:03:35,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:03:35,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:03:35,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:03:35,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:03:35,101 INFO L87 Difference]: Start difference. First operand 317 states and 349 transitions. Second operand 4 states. [2020-11-07 00:03:35,919 WARN L194 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:03:37,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:03:37,605 INFO L93 Difference]: Finished difference Result 510 states and 580 transitions. [2020-11-07 00:03:37,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:03:37,605 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 00:03:37,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:03:37,609 INFO L225 Difference]: With dead ends: 510 [2020-11-07 00:03:37,609 INFO L226 Difference]: Without dead ends: 348 [2020-11-07 00:03:37,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 00:03:37,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-11-07 00:03:37,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 307. [2020-11-07 00:03:37,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2020-11-07 00:03:37,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 336 transitions. [2020-11-07 00:03:37,751 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 336 transitions. Word has length 160 [2020-11-07 00:03:37,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:03:37,752 INFO L481 AbstractCegarLoop]: Abstraction has 307 states and 336 transitions. [2020-11-07 00:03:37,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:03:37,752 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 336 transitions. [2020-11-07 00:03:37,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-11-07 00:03:37,755 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:03:37,755 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] [2020-11-07 00:03:37,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:03:37,756 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:03:37,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:03:37,756 INFO L82 PathProgramCache]: Analyzing trace with hash -962342513, now seen corresponding path program 1 times [2020-11-07 00:03:37,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:03:37,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1754832905] [2020-11-07 00:03:37,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:03:37,764 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:03:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:38,245 WARN L194 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:03:38,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:03:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:38,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:03:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:38,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:03:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:38,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:03:38,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:38,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:03:38,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:38,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-11-07 00:03:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:38,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-07 00:03:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:38,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-11-07 00:03:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:38,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-11-07 00:03:38,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:38,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:03:38,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1754832905] [2020-11-07 00:03:38,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:03:38,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 00:03:38,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842505924] [2020-11-07 00:03:38,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 00:03:38,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:03:38,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 00:03:38,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 00:03:38,412 INFO L87 Difference]: Start difference. First operand 307 states and 336 transitions. Second operand 10 states. [2020-11-07 00:03:39,189 WARN L194 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:03:39,642 WARN L194 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 00:03:40,088 WARN L194 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 00:03:40,477 WARN L194 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:40,863 WARN L194 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:03:41,234 WARN L194 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:42,370 WARN L194 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:03:46,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:03:46,434 INFO L93 Difference]: Finished difference Result 866 states and 1011 transitions. [2020-11-07 00:03:46,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-07 00:03:46,434 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-11-07 00:03:46,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:03:46,441 INFO L225 Difference]: With dead ends: 866 [2020-11-07 00:03:46,441 INFO L226 Difference]: Without dead ends: 674 [2020-11-07 00:03:46,443 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-11-07 00:03:46,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2020-11-07 00:03:46,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 569. [2020-11-07 00:03:46,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 569 states. [2020-11-07 00:03:46,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 642 transitions. [2020-11-07 00:03:46,684 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 642 transitions. Word has length 173 [2020-11-07 00:03:46,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:03:46,685 INFO L481 AbstractCegarLoop]: Abstraction has 569 states and 642 transitions. [2020-11-07 00:03:46,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 00:03:46,685 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 642 transitions. [2020-11-07 00:03:46,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-11-07 00:03:46,692 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:03:46,692 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] [2020-11-07 00:03:46,692 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:03:46,693 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:03:46,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:03:46,693 INFO L82 PathProgramCache]: Analyzing trace with hash 2056183593, now seen corresponding path program 1 times [2020-11-07 00:03:46,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:03:46,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881107720] [2020-11-07 00:03:46,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:03:46,697 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:03:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:47,167 WARN L194 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:03:47,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:03:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:47,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:03:47,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:47,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:03:47,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:47,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:03:47,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:47,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:03:47,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:47,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-07 00:03:47,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:47,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-11-07 00:03:47,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:47,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-11-07 00:03:47,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:47,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-11-07 00:03:47,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:47,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:03:47,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881107720] [2020-11-07 00:03:47,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:03:47,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:03:47,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748704610] [2020-11-07 00:03:47,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:03:47,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:03:47,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:03:47,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:03:47,402 INFO L87 Difference]: Start difference. First operand 569 states and 642 transitions. Second operand 9 states. [2020-11-07 00:03:48,092 WARN L194 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:03:50,693 WARN L194 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:51,170 WARN L194 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:03:51,696 WARN L194 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:52,153 WARN L194 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:03:52,545 WARN L194 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:03:52,925 WARN L194 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:53,300 WARN L194 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:55,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:03:55,061 INFO L93 Difference]: Finished difference Result 1574 states and 1898 transitions. [2020-11-07 00:03:55,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 00:03:55,064 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-11-07 00:03:55,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:03:55,072 INFO L225 Difference]: With dead ends: 1574 [2020-11-07 00:03:55,072 INFO L226 Difference]: Without dead ends: 1120 [2020-11-07 00:03:55,075 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-07 00:03:55,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2020-11-07 00:03:55,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 1009. [2020-11-07 00:03:55,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1009 states. [2020-11-07 00:03:55,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1165 transitions. [2020-11-07 00:03:55,567 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1165 transitions. Word has length 178 [2020-11-07 00:03:55,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:03:55,568 INFO L481 AbstractCegarLoop]: Abstraction has 1009 states and 1165 transitions. [2020-11-07 00:03:55,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:03:55,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1165 transitions. [2020-11-07 00:03:55,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-07 00:03:55,574 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:03:55,574 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, 1] [2020-11-07 00:03:55,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:03:55,575 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:03:55,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:03:55,576 INFO L82 PathProgramCache]: Analyzing trace with hash -2004316662, now seen corresponding path program 1 times [2020-11-07 00:03:55,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:03:55,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1448313283] [2020-11-07 00:03:55,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:03:55,580 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:03:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:55,959 WARN L194 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:03:55,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:03:56,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:56,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:03:56,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:56,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:03:56,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:56,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:03:56,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:56,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:03:56,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:56,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-07 00:03:56,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:56,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-07 00:03:56,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:56,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-11-07 00:03:56,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:56,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-11-07 00:03:56,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:56,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-11-07 00:03:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:56,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:03:56,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1448313283] [2020-11-07 00:03:56,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:03:56,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:03:56,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787816774] [2020-11-07 00:03:56,161 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:03:56,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:03:56,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:03:56,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:03:56,162 INFO L87 Difference]: Start difference. First operand 1009 states and 1165 transitions. Second operand 6 states. [2020-11-07 00:03:56,805 WARN L194 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:03:59,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:03:59,595 INFO L93 Difference]: Finished difference Result 2261 states and 2724 transitions. [2020-11-07 00:03:59,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 00:03:59,599 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 183 [2020-11-07 00:03:59,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:03:59,608 INFO L225 Difference]: With dead ends: 2261 [2020-11-07 00:03:59,608 INFO L226 Difference]: Without dead ends: 1367 [2020-11-07 00:03:59,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-11-07 00:03:59,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2020-11-07 00:04:00,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1266. [2020-11-07 00:04:00,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1266 states. [2020-11-07 00:04:00,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1441 transitions. [2020-11-07 00:04:00,297 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1441 transitions. Word has length 183 [2020-11-07 00:04:00,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:04:00,298 INFO L481 AbstractCegarLoop]: Abstraction has 1266 states and 1441 transitions. [2020-11-07 00:04:00,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:04:00,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1441 transitions. [2020-11-07 00:04:00,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-07 00:04:00,302 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:04:00,302 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, 1] [2020-11-07 00:04:00,303 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:04:00,303 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:04:00,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:04:00,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1815258259, now seen corresponding path program 1 times [2020-11-07 00:04:00,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:04:00,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1712034258] [2020-11-07 00:04:00,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:04:00,307 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:04:00,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:04:00,382 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:04:00,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:04:00,456 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:04:00,652 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:04:00,652 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:04:00,653 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 00:04:00,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:04:00 BoogieIcfgContainer [2020-11-07 00:04:00,678 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:04:00,680 INFO L168 Benchmark]: Toolchain (without parser) took 32088.32 ms. Allocated memory was 151.0 MB in the beginning and 659.6 MB in the end (delta: 508.6 MB). Free memory was 126.4 MB in the beginning and 427.3 MB in the end (delta: -300.9 MB). Peak memory consumption was 209.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:04:00,680 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 125.8 MB. Free memory is still 101.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:04:00,681 INFO L168 Benchmark]: CACSL2BoogieTranslator took 629.22 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 103.2 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:04:00,682 INFO L168 Benchmark]: Boogie Preprocessor took 106.78 ms. Allocated memory is still 151.0 MB. Free memory was 103.1 MB in the beginning and 132.4 MB in the end (delta: -29.3 MB). Peak memory consumption was 7.5 MB. Max. memory is 8.0 GB. [2020-11-07 00:04:00,682 INFO L168 Benchmark]: RCFGBuilder took 1539.46 ms. Allocated memory is still 151.0 MB. Free memory was 132.3 MB in the beginning and 128.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 68.4 MB. Max. memory is 8.0 GB. [2020-11-07 00:04:00,683 INFO L168 Benchmark]: TraceAbstraction took 29795.18 ms. Allocated memory was 151.0 MB in the beginning and 659.6 MB in the end (delta: 508.6 MB). Free memory was 127.8 MB in the beginning and 427.3 MB in the end (delta: -299.5 MB). Peak memory consumption was 209.6 MB. Max. memory is 8.0 GB. [2020-11-07 00:04:00,687 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 125.8 MB. Free memory is still 101.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 629.22 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 103.2 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 106.78 ms. Allocated memory is still 151.0 MB. Free memory was 103.1 MB in the beginning and 132.4 MB in the end (delta: -29.3 MB). Peak memory consumption was 7.5 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1539.46 ms. Allocated memory is still 151.0 MB. Free memory was 132.3 MB in the beginning and 128.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 68.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 29795.18 ms. Allocated memory was 151.0 MB in the beginning and 659.6 MB in the end (delta: 508.6 MB). Free memory was 127.8 MB in the beginning and 427.3 MB in the end (delta: -299.5 MB). Peak memory consumption was 209.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L92] int pumpRunning = 0; [L93] int systemActive = 1; [L429] int waterLevel = 1; [L430] int methaneLevelCritical = 0; [L701] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L898] int cleanupTimeShifts = 4; [L971] int retValue_acc ; [L972] int tmp ; [L976] FCALL select_helpers() [L977] FCALL select_features() [L978] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L978] RET, EXPR valid_product() [L978] tmp = valid_product() [L980] COND TRUE \read(tmp) [L982] FCALL setup() [L983] CALL runTest() [L965] CALL test() [L360] int splverifierCounter ; [L361] int tmp ; [L362] int tmp___0 ; [L363] int tmp___1 ; [L364] int tmp___2 ; [L367] splverifierCounter = 0 [L369] COND TRUE 1 [L371] COND TRUE splverifierCounter < 4 [L377] tmp = __VERIFIER_nondet_int() [L379] COND TRUE \read(tmp) [L381] CALL waterRise() [L447] COND TRUE waterLevel < 2 [L448] waterLevel = waterLevel + 1 [L381] RET waterRise() [L387] tmp___0 = __VERIFIER_nondet_int() [L389] COND FALSE !(\read(tmp___0)) [L397] tmp___2 = __VERIFIER_nondet_int() [L399] COND FALSE !(\read(tmp___2)) [L405] tmp___1 = __VERIFIER_nondet_int() [L407] COND TRUE \read(tmp___1) [L409] CALL stopSystem() [L336] COND FALSE !(\read(pumpRunning)) [L343] systemActive = 0 [L409] RET stopSystem() [L416] CALL timeShift() [L100] COND FALSE !(\read(pumpRunning)) [L107] COND FALSE !(\read(systemActive)) [L115] CALL __utac_acc__Specification3_spec__1() [L1004] int tmp ; [L1005] int tmp___0 ; [L1006] int tmp___1 ; [L1010] CALL, EXPR isMethaneLevelCritical() [L468] int retValue_acc ; [L471] retValue_acc = methaneLevelCritical [L472] return (retValue_acc); [L1010] RET, EXPR isMethaneLevelCritical() [L1010] tmp = isMethaneLevelCritical() [L1012] COND FALSE !(\read(tmp)) [L1016] CALL, EXPR getWaterLevel() [L500] int retValue_acc ; [L503] retValue_acc = waterLevel [L504] return (retValue_acc); [L1016] RET, EXPR getWaterLevel() [L1016] tmp___0 = getWaterLevel() [L1018] COND TRUE tmp___0 == 2 [L1020] CALL, EXPR isPumpRunning() [L250] int retValue_acc ; [L253] retValue_acc = pumpRunning [L254] return (retValue_acc); [L1020] RET, EXPR isPumpRunning() [L1020] tmp___1 = isPumpRunning() [L1022] COND FALSE !(\read(tmp___1)) [L1026] CALL __automaton_fail() [L998] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product64.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 45 procedures, 687 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 23.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1512 SDtfs, 3038 SDslu, 1737 SDs, 0 SdLazy, 4403 SolverSat, 1155 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 8.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1266occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 406 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...