/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_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:03:06,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:03:06,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:03:06,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:03:06,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:03:06,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:03:06,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:03:06,568 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:03:06,571 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:03:06,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:03:06,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:03:06,580 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:03:06,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:03:06,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:03:06,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:03:06,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:03:06,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:03:06,594 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:03:06,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:03:06,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:03:06,613 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:03:06,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:03:06,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:03:06,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:03:06,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:03:06,629 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:03:06,630 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:03:06,631 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:03:06,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:03:06,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:03:06,636 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:03:06,636 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:03:06,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:03:06,640 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:03:06,641 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:03:06,641 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:03:06,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:03:06,659 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:03:06,660 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:03:06,661 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:03:06,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:03:06,662 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 00:03:06,686 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:03:06,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:03:06,692 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:03:06,692 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:03:06,693 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:03:06,693 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:03:06,693 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:03:06,693 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:03:06,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:03:06,694 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:03:06,695 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:03:06,695 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:03:06,696 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:03:06,696 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:03:06,696 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:03:06,697 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:03:06,697 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:03:06,697 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:03:06,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:03:06,697 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:03:06,698 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:03:06,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:03:06,698 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:03:07,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:03:07,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:03:07,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:03:07,148 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:03:07,148 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:03:07,152 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product55.cil.c [2020-11-07 00:03:07,232 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7f08b921/afb96b362eba4331b0eb32632e91739c/FLAG92cb40c6f [2020-11-07 00:03:07,991 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:03:07,992 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product55.cil.c [2020-11-07 00:03:08,014 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7f08b921/afb96b362eba4331b0eb32632e91739c/FLAG92cb40c6f [2020-11-07 00:03:08,255 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7f08b921/afb96b362eba4331b0eb32632e91739c [2020-11-07 00:03:08,258 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:03:08,265 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:03:08,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:03:08,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:03:08,271 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:03:08,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:03:08" (1/1) ... [2020-11-07 00:03:08,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cb97264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:08, skipping insertion in model container [2020-11-07 00:03:08,276 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:03:08" (1/1) ... [2020-11-07 00:03:08,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:03:08,344 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:03:08,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:03:08,677 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:03:08,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:03:08,836 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:03:08,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:08 WrapperNode [2020-11-07 00:03:08,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:03:08,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:03:08,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:03:08,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:03:08,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:08" (1/1) ... [2020-11-07 00:03:08,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:08" (1/1) ... [2020-11-07 00:03:08,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:08" (1/1) ... [2020-11-07 00:03:08,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:08" (1/1) ... [2020-11-07 00:03:08,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:08" (1/1) ... [2020-11-07 00:03:08,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:08" (1/1) ... [2020-11-07 00:03:08,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:08" (1/1) ... [2020-11-07 00:03:08,992 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:03:08,993 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:03:08,993 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:03:08,993 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:03:08,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:08" (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 00:03:09,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:03:09,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:03:09,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 00:03:09,071 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:03:09,071 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 00:03:09,071 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 00:03:09,072 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 00:03:09,072 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 00:03:09,072 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 00:03:09,072 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 00:03:09,072 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 00:03:09,072 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 00:03:09,072 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 00:03:09,073 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 00:03:09,073 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-11-07 00:03:09,073 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-11-07 00:03:09,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 00:03:09,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 00:03:09,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 00:03:09,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 00:03:09,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 00:03:09,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 00:03:09,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 00:03:09,074 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 00:03:09,074 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 00:03:09,075 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 00:03:09,075 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 00:03:09,075 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:03:09,075 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 00:03:09,075 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 00:03:09,075 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-11-07 00:03:09,076 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-11-07 00:03:09,076 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 00:03:09,076 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 00:03:09,076 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 00:03:09,076 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 00:03:09,076 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 00:03:09,077 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 00:03:09,077 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-11-07 00:03:09,077 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-11-07 00:03:09,077 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-07 00:03:09,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:03:09,077 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 00:03:09,077 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:03:09,078 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:03:09,078 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:03:09,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:03:09,078 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:03:09,078 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 00:03:09,078 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 00:03:09,078 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 00:03:09,079 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 00:03:09,079 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 00:03:09,079 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 00:03:09,079 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 00:03:09,079 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 00:03:09,079 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 00:03:09,079 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 00:03:09,079 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 00:03:09,080 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-11-07 00:03:09,080 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-11-07 00:03:09,080 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 00:03:09,080 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 00:03:09,080 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 00:03:09,080 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 00:03:09,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:03:09,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:03:09,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:03:09,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:03:09,081 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 00:03:09,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:03:09,081 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 00:03:09,081 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 00:03:09,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:03:09,082 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 00:03:09,082 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 00:03:09,082 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 00:03:09,082 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 00:03:09,082 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 00:03:09,082 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 00:03:09,082 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 00:03:09,083 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 00:03:09,083 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 00:03:09,083 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 00:03:09,083 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:03:09,083 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 00:03:09,083 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 00:03:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 00:03:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-07 00:03:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:03:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 00:03:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 00:03:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-11-07 00:03:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-11-07 00:03:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-11-07 00:03:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-11-07 00:03:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 00:03:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:03:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:03:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:03:10,347 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:03:10,347 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 00:03:10,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:03:10 BoogieIcfgContainer [2020-11-07 00:03:10,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:03:10,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:03:10,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:03:10,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:03:10,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:03:08" (1/3) ... [2020-11-07 00:03:10,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6570f82d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:03:10, skipping insertion in model container [2020-11-07 00:03:10,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:08" (2/3) ... [2020-11-07 00:03:10,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6570f82d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:03:10, skipping insertion in model container [2020-11-07 00:03:10,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:03:10" (3/3) ... [2020-11-07 00:03:10,359 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product55.cil.c [2020-11-07 00:03:10,375 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:03:10,380 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 00:03:10,394 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 00:03:10,420 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:03:10,421 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:03:10,421 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:03:10,421 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:03:10,421 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:03:10,421 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:03:10,421 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:03:10,421 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:03:10,446 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states. [2020-11-07 00:03:10,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 00:03:10,468 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:03:10,469 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 00:03:10,470 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 00:03:10,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:03:10,477 INFO L82 PathProgramCache]: Analyzing trace with hash 418060836, now seen corresponding path program 1 times [2020-11-07 00:03:10,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:03:10,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [443231632] [2020-11-07 00:03:10,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:03:10,566 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:03:10,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:11,346 WARN L194 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:03:11,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:03:11,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:11,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:03:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:11,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:03:11,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:11,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:03:11,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:11,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:03:11,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:11,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 00:03:11,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:11,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:03:11,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:11,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:03:11,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:11,579 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 00:03:11,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [443231632] [2020-11-07 00:03:11,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:03:11,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 00:03:11,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163954616] [2020-11-07 00:03:11,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 00:03:11,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:03:11,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 00:03:11,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:03:11,612 INFO L87 Difference]: Start difference. First operand 358 states. Second operand 3 states. [2020-11-07 00:03:13,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:03:13,606 INFO L93 Difference]: Finished difference Result 577 states and 687 transitions. [2020-11-07 00:03:13,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 00:03:13,608 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-07 00:03:13,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:03:13,637 INFO L225 Difference]: With dead ends: 577 [2020-11-07 00:03:13,637 INFO L226 Difference]: Without dead ends: 349 [2020-11-07 00:03:13,643 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 [2020-11-07 00:03:13,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2020-11-07 00:03:13,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 304. [2020-11-07 00:03:13,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-11-07 00:03:13,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 334 transitions. [2020-11-07 00:03:13,846 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 334 transitions. Word has length 159 [2020-11-07 00:03:13,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:03:13,847 INFO L481 AbstractCegarLoop]: Abstraction has 304 states and 334 transitions. [2020-11-07 00:03:13,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 00:03:13,847 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 334 transitions. [2020-11-07 00:03:13,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 00:03:13,852 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:03:13,853 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 00:03:13,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:03:13,853 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 00:03:13,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:03:13,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1525599240, now seen corresponding path program 1 times [2020-11-07 00:03:13,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:03:13,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1564116497] [2020-11-07 00:03:13,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:03:13,861 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:03:13,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:14,423 WARN L194 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:03:14,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:03:14,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:14,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:03:14,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:14,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:03:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:14,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:03:14,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:14,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:03:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:14,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-07 00:03:14,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:14,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:03:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:14,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 00:03:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:14,523 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 00:03:14,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1564116497] [2020-11-07 00:03:14,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:03:14,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:03:14,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662408977] [2020-11-07 00:03:14,526 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:03:14,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:03:14,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:03:14,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:03:14,527 INFO L87 Difference]: Start difference. First operand 304 states and 334 transitions. Second operand 4 states. [2020-11-07 00:03:15,330 WARN L194 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:03:16,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:03:16,878 INFO L93 Difference]: Finished difference Result 485 states and 550 transitions. [2020-11-07 00:03:16,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:03:16,879 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 00:03:16,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:03:16,883 INFO L225 Difference]: With dead ends: 485 [2020-11-07 00:03:16,883 INFO L226 Difference]: Without dead ends: 332 [2020-11-07 00:03:16,885 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 00:03:16,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-11-07 00:03:17,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 294. [2020-11-07 00:03:17,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-11-07 00:03:17,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 321 transitions. [2020-11-07 00:03:17,029 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 321 transitions. Word has length 160 [2020-11-07 00:03:17,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:03:17,030 INFO L481 AbstractCegarLoop]: Abstraction has 294 states and 321 transitions. [2020-11-07 00:03:17,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:03:17,030 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 321 transitions. [2020-11-07 00:03:17,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-11-07 00:03:17,033 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:03:17,033 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] [2020-11-07 00:03:17,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:03:17,034 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 00:03:17,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:03:17,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1009965242, now seen corresponding path program 1 times [2020-11-07 00:03:17,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:03:17,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1653097242] [2020-11-07 00:03:17,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:03:17,039 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:03:17,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:17,621 WARN L194 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:03:17,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:03:17,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:17,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:03:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:17,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:03:17,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:17,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:03:17,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:17,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:03:17,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:17,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:03:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:17,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:03:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:17,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-11-07 00:03:17,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:17,853 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 00:03:17,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1653097242] [2020-11-07 00:03:17,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:03:17,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:03:17,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384897399] [2020-11-07 00:03:17,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:03:17,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:03:17,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:03:17,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:03:17,862 INFO L87 Difference]: Start difference. First operand 294 states and 321 transitions. Second operand 9 states. [2020-11-07 00:03:18,543 WARN L194 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:03:19,068 WARN L194 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 00:03:19,417 WARN L194 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 00:03:19,870 WARN L194 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:20,279 WARN L194 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:03:20,669 WARN L194 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:21,895 WARN L194 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:03:25,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:03:25,488 INFO L93 Difference]: Finished difference Result 799 states and 923 transitions. [2020-11-07 00:03:25,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 00:03:25,489 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-11-07 00:03:25,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:03:25,499 INFO L225 Difference]: With dead ends: 799 [2020-11-07 00:03:25,499 INFO L226 Difference]: Without dead ends: 620 [2020-11-07 00:03:25,501 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-11-07 00:03:25,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2020-11-07 00:03:25,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 547. [2020-11-07 00:03:25,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 547 states. [2020-11-07 00:03:25,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 616 transitions. [2020-11-07 00:03:25,771 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 616 transitions. Word has length 169 [2020-11-07 00:03:25,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:03:25,772 INFO L481 AbstractCegarLoop]: Abstraction has 547 states and 616 transitions. [2020-11-07 00:03:25,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:03:25,772 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 616 transitions. [2020-11-07 00:03:25,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-11-07 00:03:25,776 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:03:25,777 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 00:03:25,777 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:03:25,777 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 00:03:25,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:03:25,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1205935507, now seen corresponding path program 1 times [2020-11-07 00:03:25,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:03:25,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [241142880] [2020-11-07 00:03:25,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:03:25,784 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:03:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:26,209 WARN L194 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:03:26,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:03:26,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:26,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:03:26,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:26,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:03:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:26,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:03:26,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:26,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:03:26,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:26,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-07 00:03:26,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:26,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-11-07 00:03:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:26,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-11-07 00:03:26,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:26,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-11-07 00:03:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:26,396 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 00:03:26,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [241142880] [2020-11-07 00:03:26,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:03:26,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:03:26,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679529457] [2020-11-07 00:03:26,397 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:03:26,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:03:26,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:03:26,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:03:26,399 INFO L87 Difference]: Start difference. First operand 547 states and 616 transitions. Second operand 9 states. [2020-11-07 00:03:27,110 WARN L194 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:03:29,935 WARN L194 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:30,372 WARN L194 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:03:30,853 WARN L194 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:31,349 WARN L194 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:03:31,759 WARN L194 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:03:32,163 WARN L194 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:32,590 WARN L194 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:34,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:03:34,026 INFO L93 Difference]: Finished difference Result 1497 states and 1806 transitions. [2020-11-07 00:03:34,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 00:03:34,026 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-11-07 00:03:34,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:03:34,034 INFO L225 Difference]: With dead ends: 1497 [2020-11-07 00:03:34,034 INFO L226 Difference]: Without dead ends: 1065 [2020-11-07 00:03:34,037 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-07 00:03:34,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2020-11-07 00:03:34,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 961. [2020-11-07 00:03:34,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 961 states. [2020-11-07 00:03:34,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1109 transitions. [2020-11-07 00:03:34,524 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1109 transitions. Word has length 178 [2020-11-07 00:03:34,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:03:34,524 INFO L481 AbstractCegarLoop]: Abstraction has 961 states and 1109 transitions. [2020-11-07 00:03:34,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:03:34,525 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1109 transitions. [2020-11-07 00:03:34,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-07 00:03:34,530 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:03:34,531 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 00:03:34,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:03:34,531 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 00:03:34,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:03:34,532 INFO L82 PathProgramCache]: Analyzing trace with hash -38166446, now seen corresponding path program 1 times [2020-11-07 00:03:34,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:03:34,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1614724718] [2020-11-07 00:03:34,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:03:34,536 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:03:34,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:34,901 WARN L194 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:03:34,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:03:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:34,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:03:34,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:34,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:03:34,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:34,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:03:34,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:34,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:03:34,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:35,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-07 00:03:35,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:35,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-07 00:03:35,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:35,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-11-07 00:03:35,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:35,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-11-07 00:03:35,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:35,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-11-07 00:03:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:35,073 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 00:03:35,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1614724718] [2020-11-07 00:03:35,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:03:35,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:03:35,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109845990] [2020-11-07 00:03:35,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:03:35,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:03:35,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:03:35,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:03:35,085 INFO L87 Difference]: Start difference. First operand 961 states and 1109 transitions. Second operand 6 states. [2020-11-07 00:03:35,729 WARN L194 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:03:38,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:03:38,841 INFO L93 Difference]: Finished difference Result 2118 states and 2562 transitions. [2020-11-07 00:03:38,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 00:03:38,841 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 183 [2020-11-07 00:03:38,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:03:38,849 INFO L225 Difference]: With dead ends: 2118 [2020-11-07 00:03:38,850 INFO L226 Difference]: Without dead ends: 1272 [2020-11-07 00:03:38,854 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 [2020-11-07 00:03:38,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2020-11-07 00:03:39,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 1174. [2020-11-07 00:03:39,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1174 states. [2020-11-07 00:03:39,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1341 transitions. [2020-11-07 00:03:39,486 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1341 transitions. Word has length 183 [2020-11-07 00:03:39,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:03:39,487 INFO L481 AbstractCegarLoop]: Abstraction has 1174 states and 1341 transitions. [2020-11-07 00:03:39,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:03:39,487 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1341 transitions. [2020-11-07 00:03:39,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-07 00:03:39,490 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:03:39,491 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 00:03:39,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:03:39,491 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 00:03:39,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:03:39,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1357659333, now seen corresponding path program 1 times [2020-11-07 00:03:39,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:03:39,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671550948] [2020-11-07 00:03:39,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:03:39,495 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:03:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:03:39,571 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:03:39,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:03:39,640 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:03:39,852 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:03:39,853 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:03:39,854 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 00:03:39,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:03:39 BoogieIcfgContainer [2020-11-07 00:03:39,878 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:03:39,880 INFO L168 Benchmark]: Toolchain (without parser) took 31619.32 ms. Allocated memory was 151.0 MB in the beginning and 570.4 MB in the end (delta: 419.4 MB). Free memory was 127.0 MB in the beginning and 263.7 MB in the end (delta: -136.7 MB). Peak memory consumption was 284.1 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:39,881 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 151.0 MB. Free memory was 127.3 MB in the beginning and 127.2 MB in the end (delta: 102.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:03:39,882 INFO L168 Benchmark]: CACSL2BoogieTranslator took 570.17 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 104.5 MB in the end (delta: 21.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:39,882 INFO L168 Benchmark]: Boogie Preprocessor took 152.97 ms. Allocated memory is still 151.0 MB. Free memory was 104.5 MB in the beginning and 132.8 MB in the end (delta: -28.2 MB). Peak memory consumption was 6.1 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:39,883 INFO L168 Benchmark]: RCFGBuilder took 1358.04 ms. Allocated memory is still 151.0 MB. Free memory was 132.8 MB in the beginning and 86.1 MB in the end (delta: 46.7 MB). Peak memory consumption was 66.1 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:39,884 INFO L168 Benchmark]: TraceAbstraction took 29525.63 ms. Allocated memory was 151.0 MB in the beginning and 570.4 MB in the end (delta: 419.4 MB). Free memory was 85.5 MB in the beginning and 263.7 MB in the end (delta: -178.1 MB). Peak memory consumption was 241.3 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:39,887 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 151.0 MB. Free memory was 127.3 MB in the beginning and 127.2 MB in the end (delta: 102.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 570.17 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 104.5 MB in the end (delta: 21.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 152.97 ms. Allocated memory is still 151.0 MB. Free memory was 104.5 MB in the beginning and 132.8 MB in the end (delta: -28.2 MB). Peak memory consumption was 6.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1358.04 ms. Allocated memory is still 151.0 MB. Free memory was 132.8 MB in the beginning and 86.1 MB in the end (delta: 46.7 MB). Peak memory consumption was 66.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 29525.63 ms. Allocated memory was 151.0 MB in the beginning and 570.4 MB in the end (delta: 419.4 MB). Free memory was 85.5 MB in the beginning and 263.7 MB in the end (delta: -178.1 MB). Peak memory consumption was 241.3 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: [L88] int waterLevel = 1; [L89] int methaneLevelCritical = 0; [L369] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L566] int cleanupTimeShifts = 4; [L669] int pumpRunning = 0; [L670] int systemActive = 1; [L642] int retValue_acc ; [L643] int tmp ; [L647] FCALL select_helpers() [L648] FCALL select_features() [L649] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L649] RET, EXPR valid_product() [L649] tmp = valid_product() [L651] COND TRUE \read(tmp) [L653] FCALL setup() [L654] CALL runTest() [L636] CALL test() [L943] int splverifierCounter ; [L944] int tmp ; [L945] int tmp___0 ; [L946] int tmp___1 ; [L947] int tmp___2 ; [L950] splverifierCounter = 0 [L952] COND TRUE 1 [L954] COND TRUE splverifierCounter < 4 [L960] tmp = __VERIFIER_nondet_int() [L962] COND TRUE \read(tmp) [L964] CALL waterRise() [L106] COND TRUE waterLevel < 2 [L107] waterLevel = waterLevel + 1 [L964] RET waterRise() [L970] tmp___0 = __VERIFIER_nondet_int() [L972] COND FALSE !(\read(tmp___0)) [L980] tmp___2 = __VERIFIER_nondet_int() [L982] COND FALSE !(\read(tmp___2)) [L986] tmp___1 = __VERIFIER_nondet_int() [L988] COND TRUE \read(tmp___1) [L990] CALL stopSystem() [L896] COND FALSE !(\read(pumpRunning)) [L903] systemActive = 0 [L990] RET stopSystem() [L997] CALL timeShift() [L677] COND FALSE !(\read(pumpRunning)) [L684] COND FALSE !(\read(systemActive)) [L692] CALL __utac_acc__Specification3_spec__1() [L909] int tmp ; [L910] int tmp___0 ; [L911] int tmp___1 ; [L915] CALL, EXPR isMethaneLevelCritical() [L127] int retValue_acc ; [L130] retValue_acc = methaneLevelCritical [L131] return (retValue_acc); [L915] RET, EXPR isMethaneLevelCritical() [L915] tmp = isMethaneLevelCritical() [L917] COND FALSE !(\read(tmp)) [L921] CALL, EXPR getWaterLevel() [L159] int retValue_acc ; [L162] retValue_acc = waterLevel [L163] return (retValue_acc); [L921] RET, EXPR getWaterLevel() [L921] tmp___0 = getWaterLevel() [L923] COND TRUE tmp___0 == 2 [L925] CALL, EXPR isPumpRunning() [L810] int retValue_acc ; [L813] retValue_acc = pumpRunning [L814] return (retValue_acc); [L925] RET, EXPR isPumpRunning() [L925] tmp___1 = isPumpRunning() [L927] COND FALSE !(\read(tmp___1)) [L931] CALL __automaton_fail() [L195] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product55.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 674 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 23.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1439 SDtfs, 2274 SDslu, 1540 SDs, 0 SdLazy, 4299 SolverSat, 776 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 8.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1174occurred 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, 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...