/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_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:58:11,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:58:11,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:58:11,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:58:11,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:58:11,879 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:58:11,883 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:58:11,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:58:11,895 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:58:11,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:58:11,905 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:58:11,906 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:58:11,907 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:58:11,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:58:11,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:58:11,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:58:11,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:58:11,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:58:11,927 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:58:11,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:58:11,937 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:58:11,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:58:11,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:58:11,945 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:58:11,948 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:58:11,949 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:58:11,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:58:11,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:58:11,953 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:58:11,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:58:11,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:58:11,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:58:11,959 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:58:11,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:58:11,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:58:11,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:58:11,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:58:11,972 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:58:11,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:58:11,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:58:11,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:58:11,976 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 19:58:11,999 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:58:11,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:58:12,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:58:12,006 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:58:12,006 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:58:12,006 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:58:12,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:58:12,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:58:12,007 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:58:12,007 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:58:12,008 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:58:12,008 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:58:12,008 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:58:12,009 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:58:12,009 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:58:12,009 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:58:12,010 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:58:12,010 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:58:12,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:58:12,010 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:58:12,010 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:58:12,011 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:58:12,011 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:58:12,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:58:12,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:58:12,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:58:12,475 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:58:12,478 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:58:12,479 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c [2020-10-23 19:58:12,558 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ef2a2480/ab6f0a0c0a58455193e898f80ab25c2c/FLAGa503cb1e3 [2020-10-23 19:58:13,253 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:58:13,254 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c [2020-10-23 19:58:13,267 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ef2a2480/ab6f0a0c0a58455193e898f80ab25c2c/FLAGa503cb1e3 [2020-10-23 19:58:13,548 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ef2a2480/ab6f0a0c0a58455193e898f80ab25c2c [2020-10-23 19:58:13,551 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:58:13,558 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:58:13,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:58:13,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:58:13,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:58:13,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:58:13" (1/1) ... [2020-10-23 19:58:13,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59e3f4d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:13, skipping insertion in model container [2020-10-23 19:58:13,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:58:13" (1/1) ... [2020-10-23 19:58:13,583 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:58:13,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:58:14,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:58:14,017 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:58:14,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:58:14,174 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:58:14,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:14 WrapperNode [2020-10-23 19:58:14,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:58:14,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:58:14,177 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:58:14,177 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:58:14,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:14" (1/1) ... [2020-10-23 19:58:14,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:14" (1/1) ... [2020-10-23 19:58:14,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:14" (1/1) ... [2020-10-23 19:58:14,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:14" (1/1) ... [2020-10-23 19:58:14,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:14" (1/1) ... [2020-10-23 19:58:14,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:14" (1/1) ... [2020-10-23 19:58:14,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:14" (1/1) ... [2020-10-23 19:58:14,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:58:14,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:58:14,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:58:14,350 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:58:14,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:14" (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 [2020-10-23 19:58:14,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:58:14,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:58:14,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:58:14,450 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:58:14,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:58:14,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:58:14,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:58:14,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:58:14,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:58:14,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:58:14,452 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:58:14,452 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:58:14,452 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:58:14,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:58:14,453 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:58:14,453 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:58:14,453 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 19:58:14,454 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 19:58:14,454 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:58:14,454 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:58:14,455 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:58:14,455 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:58:14,457 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:58:14,458 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:58:14,458 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:58:14,458 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:58:14,458 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:58:14,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:58:14,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:58:14,459 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:58:14,459 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:58:14,459 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 19:58:14,459 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 19:58:14,459 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:58:14,460 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 19:58:14,460 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:58:14,460 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:58:14,460 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:58:14,460 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:58:14,460 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:58:14,461 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 19:58:14,461 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 19:58:14,461 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 19:58:14,461 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:58:14,461 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:58:14,461 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:58:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:58:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:58:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:58:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:58:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:58:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:58:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:58:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:58:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:58:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:58:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:58:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:58:14,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:58:14,464 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:58:14,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:58:14,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:58:14,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:58:14,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:58:14,464 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:58:14,465 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:58:14,465 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:58:14,465 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:58:14,465 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:58:14,465 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:58:14,465 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 19:58:14,466 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 19:58:14,466 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:58:14,466 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:58:14,466 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:58:14,467 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:58:14,467 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:58:14,467 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:58:14,467 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:58:14,467 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:58:14,468 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:58:14,468 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:58:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:58:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:58:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:58:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:58:14,470 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:58:14,471 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 19:58:14,471 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:58:14,471 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:58:14,471 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:58:14,472 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 19:58:14,472 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 19:58:14,472 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 19:58:14,473 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 19:58:14,473 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 19:58:14,474 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:58:14,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:58:14,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:58:14,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:58:15,935 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:58:15,935 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:58:15,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:58:15 BoogieIcfgContainer [2020-10-23 19:58:15,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:58:15,940 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:58:15,941 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:58:15,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:58:15,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:58:13" (1/3) ... [2020-10-23 19:58:15,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad2668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:58:15, skipping insertion in model container [2020-10-23 19:58:15,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:14" (2/3) ... [2020-10-23 19:58:15,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad2668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:58:15, skipping insertion in model container [2020-10-23 19:58:15,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:58:15" (3/3) ... [2020-10-23 19:58:15,948 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product59.cil.c [2020-10-23 19:58:15,961 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:58:15,967 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:58:15,981 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:58:16,013 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:58:16,013 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:58:16,013 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:58:16,013 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:58:16,013 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:58:16,013 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:58:16,014 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:58:16,015 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:58:16,046 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states. [2020-10-23 19:58:16,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 19:58:16,070 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:16,072 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] [2020-10-23 19:58:16,072 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]=== [2020-10-23 19:58:16,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:16,079 INFO L82 PathProgramCache]: Analyzing trace with hash -437996140, now seen corresponding path program 1 times [2020-10-23 19:58:16,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:16,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1340730090] [2020-10-23 19:58:16,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:16,177 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:16,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:17,013 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:17,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:17,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:17,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:17,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:17,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:17,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:17,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:17,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:17,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:58:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:17,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:58:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:17,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:58:17,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:17,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:58:17,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1340730090] [2020-10-23 19:58:17,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:58:17,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 19:58:17,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035588127] [2020-10-23 19:58:17,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 19:58:17,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:58:17,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 19:58:17,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:58:17,272 INFO L87 Difference]: Start difference. First operand 355 states. Second operand 3 states. [2020-10-23 19:58:19,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:19,384 INFO L93 Difference]: Finished difference Result 571 states and 674 transitions. [2020-10-23 19:58:19,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 19:58:19,386 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 19:58:19,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:19,404 INFO L225 Difference]: With dead ends: 571 [2020-10-23 19:58:19,405 INFO L226 Difference]: Without dead ends: 346 [2020-10-23 19:58:19,411 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:58:19,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-23 19:58:19,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 301. [2020-10-23 19:58:19,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-10-23 19:58:19,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 328 transitions. [2020-10-23 19:58:19,625 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 328 transitions. Word has length 159 [2020-10-23 19:58:19,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:19,626 INFO L481 AbstractCegarLoop]: Abstraction has 301 states and 328 transitions. [2020-10-23 19:58:19,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 19:58:19,626 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 328 transitions. [2020-10-23 19:58:19,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 19:58:19,631 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:19,632 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] [2020-10-23 19:58:19,632 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:58:19,632 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]=== [2020-10-23 19:58:19,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:19,633 INFO L82 PathProgramCache]: Analyzing trace with hash -328574072, now seen corresponding path program 1 times [2020-10-23 19:58:19,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:19,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1752263566] [2020-10-23 19:58:19,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:19,638 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:19,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:20,181 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:20,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:20,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:20,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:20,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:20,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:20,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:20,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:20,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:20,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-23 19:58:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:20,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:58:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:20,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 19:58:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:20,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:58:20,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1752263566] [2020-10-23 19:58:20,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:58:20,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:58:20,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751249752] [2020-10-23 19:58:20,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:58:20,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:58:20,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:58:20,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:58:20,281 INFO L87 Difference]: Start difference. First operand 301 states and 328 transitions. Second operand 4 states. [2020-10-23 19:58:21,079 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:58:22,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:22,610 INFO L93 Difference]: Finished difference Result 479 states and 537 transitions. [2020-10-23 19:58:22,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 19:58:22,617 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-23 19:58:22,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:22,621 INFO L225 Difference]: With dead ends: 479 [2020-10-23 19:58:22,622 INFO L226 Difference]: Without dead ends: 329 [2020-10-23 19:58:22,627 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 [2020-10-23 19:58:22,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2020-10-23 19:58:22,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 291. [2020-10-23 19:58:22,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2020-10-23 19:58:22,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 315 transitions. [2020-10-23 19:58:22,751 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 315 transitions. Word has length 160 [2020-10-23 19:58:22,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:22,752 INFO L481 AbstractCegarLoop]: Abstraction has 291 states and 315 transitions. [2020-10-23 19:58:22,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:58:22,752 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 315 transitions. [2020-10-23 19:58:22,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-23 19:58:22,756 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:22,756 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] [2020-10-23 19:58:22,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:58:22,757 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]=== [2020-10-23 19:58:22,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:22,757 INFO L82 PathProgramCache]: Analyzing trace with hash -855781610, now seen corresponding path program 1 times [2020-10-23 19:58:22,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:22,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [976018232] [2020-10-23 19:58:22,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:22,762 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:23,270 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:23,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:23,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:23,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:23,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:23,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:23,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:23,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:23,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:23,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:23,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:23,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:58:23,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:23,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:58:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:23,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-23 19:58:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:23,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:58:23,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [976018232] [2020-10-23 19:58:23,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:58:23,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:58:23,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815623788] [2020-10-23 19:58:23,448 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:58:23,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:58:23,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:58:23,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:58:23,449 INFO L87 Difference]: Start difference. First operand 291 states and 315 transitions. Second operand 9 states. [2020-10-23 19:58:24,139 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:58:24,621 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:58:25,017 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:58:25,397 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:25,800 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:58:26,188 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:27,388 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:58:30,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:30,701 INFO L93 Difference]: Finished difference Result 790 states and 903 transitions. [2020-10-23 19:58:30,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 19:58:30,702 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-10-23 19:58:30,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:30,708 INFO L225 Difference]: With dead ends: 790 [2020-10-23 19:58:30,708 INFO L226 Difference]: Without dead ends: 614 [2020-10-23 19:58:30,713 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-23 19:58:30,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2020-10-23 19:58:30,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 541. [2020-10-23 19:58:30,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 541 states. [2020-10-23 19:58:30,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 604 transitions. [2020-10-23 19:58:30,983 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 604 transitions. Word has length 169 [2020-10-23 19:58:30,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:30,986 INFO L481 AbstractCegarLoop]: Abstraction has 541 states and 604 transitions. [2020-10-23 19:58:30,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:58:30,986 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 604 transitions. [2020-10-23 19:58:30,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-23 19:58:30,990 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:30,991 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] [2020-10-23 19:58:30,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:58:30,992 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]=== [2020-10-23 19:58:30,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:30,993 INFO L82 PathProgramCache]: Analyzing trace with hash -579551249, now seen corresponding path program 1 times [2020-10-23 19:58:30,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:30,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [780369829] [2020-10-23 19:58:30,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:31,000 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:31,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:31,559 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:31,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:31,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:31,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:31,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:31,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:31,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:31,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:31,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:31,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:31,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:31,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 19:58:31,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:31,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 19:58:31,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:31,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-23 19:58:31,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:31,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-23 19:58:31,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:31,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:58:31,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [780369829] [2020-10-23 19:58:31,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:58:31,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:58:31,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704902927] [2020-10-23 19:58:31,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:58:31,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:58:31,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:58:31,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:58:31,724 INFO L87 Difference]: Start difference. First operand 541 states and 604 transitions. Second operand 9 states. [2020-10-23 19:58:32,366 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:58:34,826 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:35,264 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:58:35,695 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:36,211 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:58:36,647 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:58:37,046 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:37,415 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:38,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:38,895 INFO L93 Difference]: Finished difference Result 1479 states and 1762 transitions. [2020-10-23 19:58:38,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 19:58:38,896 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-10-23 19:58:38,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:38,904 INFO L225 Difference]: With dead ends: 1479 [2020-10-23 19:58:38,904 INFO L226 Difference]: Without dead ends: 1053 [2020-10-23 19:58:38,907 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-23 19:58:38,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2020-10-23 19:58:39,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 949. [2020-10-23 19:58:39,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 949 states. [2020-10-23 19:58:39,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1083 transitions. [2020-10-23 19:58:39,325 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1083 transitions. Word has length 178 [2020-10-23 19:58:39,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:39,326 INFO L481 AbstractCegarLoop]: Abstraction has 949 states and 1083 transitions. [2020-10-23 19:58:39,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:58:39,326 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1083 transitions. [2020-10-23 19:58:39,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-23 19:58:39,331 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:39,332 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] [2020-10-23 19:58:39,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:58:39,332 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]=== [2020-10-23 19:58:39,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:39,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1286883871, now seen corresponding path program 1 times [2020-10-23 19:58:39,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:39,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1901191284] [2020-10-23 19:58:39,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:39,337 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:39,726 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:39,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:39,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:39,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:39,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:39,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:39,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:39,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:39,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:39,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 19:58:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:39,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 19:58:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:39,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 19:58:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:39,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-23 19:58:39,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:39,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-23 19:58:39,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:39,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:58:39,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1901191284] [2020-10-23 19:58:39,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:58:39,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 19:58:39,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362077725] [2020-10-23 19:58:39,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 19:58:39,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:58:39,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 19:58:39,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 19:58:39,905 INFO L87 Difference]: Start difference. First operand 949 states and 1083 transitions. Second operand 6 states. [2020-10-23 19:58:40,539 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:58:43,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:43,418 INFO L93 Difference]: Finished difference Result 2112 states and 2522 transitions. [2020-10-23 19:58:43,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 19:58:43,419 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 183 [2020-10-23 19:58:43,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:43,426 INFO L225 Difference]: With dead ends: 2112 [2020-10-23 19:58:43,426 INFO L226 Difference]: Without dead ends: 1278 [2020-10-23 19:58:43,430 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:58:43,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states. [2020-10-23 19:58:43,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 1180. [2020-10-23 19:58:43,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1180 states. [2020-10-23 19:58:43,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1343 transitions. [2020-10-23 19:58:43,861 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1343 transitions. Word has length 183 [2020-10-23 19:58:43,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:43,862 INFO L481 AbstractCegarLoop]: Abstraction has 1180 states and 1343 transitions. [2020-10-23 19:58:43,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 19:58:43,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1343 transitions. [2020-10-23 19:58:43,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-23 19:58:43,866 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:43,866 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] [2020-10-23 19:58:43,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:58:43,867 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]=== [2020-10-23 19:58:43,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:43,868 INFO L82 PathProgramCache]: Analyzing trace with hash -2007826610, now seen corresponding path program 1 times [2020-10-23 19:58:43,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:43,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2092228984] [2020-10-23 19:58:43,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:43,871 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:43,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:58:43,948 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:58:44,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:58:44,018 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:58:44,201 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 19:58:44,202 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 19:58:44,203 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 19:58:44,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 07:58:44 BoogieIcfgContainer [2020-10-23 19:58:44,228 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 19:58:44,230 INFO L168 Benchmark]: Toolchain (without parser) took 30676.45 ms. Allocated memory was 156.2 MB in the beginning and 588.3 MB in the end (delta: 432.0 MB). Free memory was 131.5 MB in the beginning and 433.6 MB in the end (delta: -302.1 MB). Peak memory consumption was 131.2 MB. Max. memory is 8.0 GB. [2020-10-23 19:58:44,231 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 125.8 MB. Free memory was 102.1 MB in the beginning and 102.0 MB in the end (delta: 122.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:58:44,231 INFO L168 Benchmark]: CACSL2BoogieTranslator took 615.38 ms. Allocated memory is still 156.2 MB. Free memory was 130.8 MB in the beginning and 109.0 MB in the end (delta: 21.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:58:44,232 INFO L168 Benchmark]: Boogie Preprocessor took 172.23 ms. Allocated memory is still 156.2 MB. Free memory was 109.0 MB in the beginning and 137.5 MB in the end (delta: -28.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-10-23 19:58:44,233 INFO L168 Benchmark]: RCFGBuilder took 1588.85 ms. Allocated memory is still 156.2 MB. Free memory was 137.1 MB in the beginning and 131.0 MB in the end (delta: 6.1 MB). Peak memory consumption was 64.8 MB. Max. memory is 8.0 GB. [2020-10-23 19:58:44,234 INFO L168 Benchmark]: TraceAbstraction took 28287.46 ms. Allocated memory was 156.2 MB in the beginning and 588.3 MB in the end (delta: 432.0 MB). Free memory was 130.4 MB in the beginning and 433.6 MB in the end (delta: -303.2 MB). Peak memory consumption was 129.3 MB. Max. memory is 8.0 GB. [2020-10-23 19:58:44,237 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 125.8 MB. Free memory was 102.1 MB in the beginning and 102.0 MB in the end (delta: 122.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 615.38 ms. Allocated memory is still 156.2 MB. Free memory was 130.8 MB in the beginning and 109.0 MB in the end (delta: 21.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 172.23 ms. Allocated memory is still 156.2 MB. Free memory was 109.0 MB in the beginning and 137.5 MB in the end (delta: -28.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1588.85 ms. Allocated memory is still 156.2 MB. Free memory was 137.1 MB in the beginning and 131.0 MB in the end (delta: 6.1 MB). Peak memory consumption was 64.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 28287.46 ms. Allocated memory was 156.2 MB in the beginning and 588.3 MB in the end (delta: 432.0 MB). Free memory was 130.4 MB in the beginning and 433.6 MB in the end (delta: -303.2 MB). Peak memory consumption was 129.3 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: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int waterLevel = 1; [L417] int methaneLevelCritical = 0; [L519] int cleanupTimeShifts = 4; [L771] int pumpRunning = 0; [L772] int systemActive = 1; [L598] int retValue_acc ; [L599] int tmp ; [L603] FCALL select_helpers() [L604] FCALL select_features() [L605] CALL, EXPR valid_product() [L647] int retValue_acc ; [L650] retValue_acc = 1 [L651] return (retValue_acc); [L605] RET, EXPR valid_product() [L605] tmp = valid_product() [L607] COND TRUE \read(tmp) [L609] FCALL setup() [L610] CALL runTest() [L589] CALL test() [L703] int splverifierCounter ; [L704] int tmp ; [L705] int tmp___0 ; [L706] int tmp___1 ; [L707] int tmp___2 ; [L710] splverifierCounter = 0 [L712] COND TRUE 1 [L714] COND TRUE splverifierCounter < 4 [L720] tmp = __VERIFIER_nondet_int() [L722] COND TRUE \read(tmp) [L724] CALL waterRise() [L434] COND TRUE waterLevel < 2 [L435] waterLevel = waterLevel + 1 [L724] RET waterRise() [L730] tmp___0 = __VERIFIER_nondet_int() [L732] COND FALSE !(\read(tmp___0)) [L740] tmp___2 = __VERIFIER_nondet_int() [L742] COND FALSE !(\read(tmp___2)) [L746] tmp___1 = __VERIFIER_nondet_int() [L748] COND TRUE \read(tmp___1) [L750] CALL stopSystem() [L989] COND FALSE !(\read(pumpRunning)) [L996] systemActive = 0 [L750] RET stopSystem() [L757] CALL timeShift() [L778] COND FALSE !(\read(pumpRunning)) [L785] COND FALSE !(\read(systemActive)) [L793] CALL __utac_acc__Specification3_spec__1() [L659] int tmp ; [L660] int tmp___0 ; [L661] int tmp___1 ; [L665] CALL, EXPR isMethaneLevelCritical() [L455] int retValue_acc ; [L458] retValue_acc = methaneLevelCritical [L459] return (retValue_acc); [L665] RET, EXPR isMethaneLevelCritical() [L665] tmp = isMethaneLevelCritical() [L667] COND FALSE !(\read(tmp)) [L671] CALL, EXPR getWaterLevel() [L487] int retValue_acc ; [L490] retValue_acc = waterLevel [L491] return (retValue_acc); [L671] RET, EXPR getWaterLevel() [L671] tmp___0 = getWaterLevel() [L673] COND TRUE tmp___0 == 2 [L675] CALL, EXPR isPumpRunning() [L903] int retValue_acc ; [L906] retValue_acc = pumpRunning [L907] return (retValue_acc); [L675] RET, EXPR isPumpRunning() [L675] tmp___1 = isPumpRunning() [L677] COND FALSE !(\read(tmp___1)) [L681] CALL __automaton_fail() [L696] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product59.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 671 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 28.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 22.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1426 SDtfs, 2245 SDslu, 1520 SDs, 0 SdLazy, 4193 SolverSat, 738 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 8.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1180occurred 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: 1.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 358 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...