/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_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:02:10,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:02:10,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:02:10,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:02:10,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:02:10,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:02:10,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:02:10,733 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:02:10,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:02:10,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:02:10,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:02:10,739 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:02:10,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:02:10,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:02:10,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:02:10,745 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:02:10,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:02:10,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:02:10,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:02:10,763 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:02:10,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:02:10,767 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:02:10,769 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:02:10,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:02:10,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:02:10,774 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:02:10,774 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:02:10,775 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:02:10,776 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:02:10,777 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:02:10,777 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:02:10,778 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:02:10,780 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:02:10,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:02:10,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:02:10,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:02:10,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:02:10,784 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:02:10,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:02:10,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:02:10,786 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:02:10,787 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 00:02:10,800 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:02:10,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:02:10,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:02:10,803 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:02:10,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:02:10,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:02:10,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:02:10,804 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:02:10,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:02:10,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:02:10,804 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:02:10,805 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:02:10,805 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:02:10,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:02:10,806 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:02:10,806 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:02:10,806 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:02:10,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:02:10,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:02:10,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:02:10,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:02:10,808 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:02:10,808 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:02:11,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:02:11,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:02:11,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:02:11,287 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:02:11,288 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:02:11,289 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product39.cil.c [2020-11-07 00:02:11,393 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e0f6f18d/2c708514b3a642b9953ccc96caa7bd63/FLAG2a7aaa919 [2020-11-07 00:02:12,102 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:02:12,103 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product39.cil.c [2020-11-07 00:02:12,118 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e0f6f18d/2c708514b3a642b9953ccc96caa7bd63/FLAG2a7aaa919 [2020-11-07 00:02:12,399 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e0f6f18d/2c708514b3a642b9953ccc96caa7bd63 [2020-11-07 00:02:12,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:02:12,412 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:02:12,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:02:12,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:02:12,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:02:12,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:02:12" (1/1) ... [2020-11-07 00:02:12,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18573c53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:12, skipping insertion in model container [2020-11-07 00:02:12,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:02:12" (1/1) ... [2020-11-07 00:02:12,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:02:12,482 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:02:12,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:02:12,874 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:02:12,956 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:02:13,004 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:02:13,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:13 WrapperNode [2020-11-07 00:02:13,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:02:13,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:02:13,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:02:13,007 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:02:13,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:13" (1/1) ... [2020-11-07 00:02:13,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:13" (1/1) ... [2020-11-07 00:02:13,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:13" (1/1) ... [2020-11-07 00:02:13,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:13" (1/1) ... [2020-11-07 00:02:13,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:13" (1/1) ... [2020-11-07 00:02:13,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:13" (1/1) ... [2020-11-07 00:02:13,161 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:13" (1/1) ... [2020-11-07 00:02:13,175 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:02:13,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:02:13,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:02:13,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:02:13,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:13" (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 00:02:13,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:02:13,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:02:13,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 00:02:13,261 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:02:13,261 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 00:02:13,261 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 00:02:13,261 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 00:02:13,262 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 00:02:13,262 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 00:02:13,262 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 00:02:13,262 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 00:02:13,263 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 00:02:13,263 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 00:02:13,263 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 00:02:13,263 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-11-07 00:02:13,263 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 00:02:13,264 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 00:02:13,264 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-11-07 00:02:13,264 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 00:02:13,264 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 00:02:13,265 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 00:02:13,265 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 00:02:13,265 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 00:02:13,265 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 00:02:13,265 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-11-07 00:02:13,266 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-07 00:02:13,266 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 00:02:13,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 00:02:13,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 00:02:13,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 00:02:13,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 00:02:13,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 00:02:13,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 00:02:13,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 00:02:13,268 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 00:02:13,268 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 00:02:13,268 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 00:02:13,268 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 00:02:13,268 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:02:13,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:02:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:02:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:02:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:02:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:02:13,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:02:13,270 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 00:02:13,270 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 00:02:13,270 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 00:02:13,271 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 00:02:13,271 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 00:02:13,271 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 00:02:13,271 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 00:02:13,272 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 00:02:13,272 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 00:02:13,272 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 00:02:13,272 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 00:02:13,272 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-11-07 00:02:13,273 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 00:02:13,273 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 00:02:13,273 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 00:02:13,273 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 00:02:13,273 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 00:02:13,274 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-07 00:02:13,274 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:02:13,274 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 00:02:13,274 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 00:02:13,274 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-11-07 00:02:13,275 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-11-07 00:02:13,275 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 00:02:13,275 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 00:02:13,275 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 00:02:13,275 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 00:02:13,276 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 00:02:13,276 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 00:02:13,276 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 00:02:13,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:02:13,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:02:13,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:02:13,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:02:13,277 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 00:02:13,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:02:13,277 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 00:02:13,277 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 00:02:13,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:02:13,278 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 00:02:13,278 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 00:02:13,278 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 00:02:13,279 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 00:02:13,279 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 00:02:13,279 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 00:02:13,279 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:02:13,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:02:13,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:02:13,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:02:14,594 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:02:14,594 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 00:02:14,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:02:14 BoogieIcfgContainer [2020-11-07 00:02:14,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:02:14,599 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:02:14,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:02:14,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:02:14,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:02:12" (1/3) ... [2020-11-07 00:02:14,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2946ac04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:02:14, skipping insertion in model container [2020-11-07 00:02:14,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:13" (2/3) ... [2020-11-07 00:02:14,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2946ac04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:02:14, skipping insertion in model container [2020-11-07 00:02:14,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:02:14" (3/3) ... [2020-11-07 00:02:14,607 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product39.cil.c [2020-11-07 00:02:14,624 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:02:14,629 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 00:02:14,642 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 00:02:14,673 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:02:14,673 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:02:14,673 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:02:14,673 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:02:14,674 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:02:14,674 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:02:14,674 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:02:14,674 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:02:14,698 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states. [2020-11-07 00:02:14,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 00:02:14,722 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:14,723 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 00:02:14,724 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 00:02:14,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:14,731 INFO L82 PathProgramCache]: Analyzing trace with hash 133257542, now seen corresponding path program 1 times [2020-11-07 00:02:14,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:14,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1770863452] [2020-11-07 00:02:14,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:14,822 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:15,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:15,661 WARN L194 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:15,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:15,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:15,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:15,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:15,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:15,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:15,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:15,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:15,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 00:02:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:15,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:02:15,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:15,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:02:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:15,887 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 00:02:15,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1770863452] [2020-11-07 00:02:15,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:15,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 00:02:15,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826032967] [2020-11-07 00:02:15,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 00:02:15,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:15,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 00:02:15,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:02:15,936 INFO L87 Difference]: Start difference. First operand 327 states. Second operand 3 states. [2020-11-07 00:02:17,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:17,802 INFO L93 Difference]: Finished difference Result 513 states and 612 transitions. [2020-11-07 00:02:17,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 00:02:17,804 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-07 00:02:17,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:17,822 INFO L225 Difference]: With dead ends: 513 [2020-11-07 00:02:17,822 INFO L226 Difference]: Without dead ends: 316 [2020-11-07 00:02:17,828 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 00:02:17,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2020-11-07 00:02:18,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 273. [2020-11-07 00:02:18,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2020-11-07 00:02:18,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 298 transitions. [2020-11-07 00:02:18,014 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 298 transitions. Word has length 159 [2020-11-07 00:02:18,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:18,015 INFO L481 AbstractCegarLoop]: Abstraction has 273 states and 298 transitions. [2020-11-07 00:02:18,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 00:02:18,016 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 298 transitions. [2020-11-07 00:02:18,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 00:02:18,020 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:18,021 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 00:02:18,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:02:18,021 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 00:02:18,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:18,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1164170780, now seen corresponding path program 1 times [2020-11-07 00:02:18,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:18,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [875670020] [2020-11-07 00:02:18,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:18,027 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:18,536 WARN L194 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:18,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:18,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:18,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:18,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:18,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:18,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:18,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:18,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:18,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:18,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-07 00:02:18,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:18,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:02:18,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:18,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 00:02:18,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:18,645 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 00:02:18,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [875670020] [2020-11-07 00:02:18,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:18,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:02:18,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197370072] [2020-11-07 00:02:18,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:02:18,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:18,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:02:18,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:02:18,648 INFO L87 Difference]: Start difference. First operand 273 states and 298 transitions. Second operand 4 states. [2020-11-07 00:02:19,499 WARN L194 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:02:20,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:20,827 INFO L93 Difference]: Finished difference Result 421 states and 475 transitions. [2020-11-07 00:02:20,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:02:20,830 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 00:02:20,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:20,835 INFO L225 Difference]: With dead ends: 421 [2020-11-07 00:02:20,835 INFO L226 Difference]: Without dead ends: 299 [2020-11-07 00:02:20,838 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 00:02:20,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-11-07 00:02:20,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 263. [2020-11-07 00:02:20,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-11-07 00:02:20,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 285 transitions. [2020-11-07 00:02:20,966 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 285 transitions. Word has length 160 [2020-11-07 00:02:20,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:20,967 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 285 transitions. [2020-11-07 00:02:20,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:02:20,967 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 285 transitions. [2020-11-07 00:02:20,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-11-07 00:02:20,970 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:20,970 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 00:02:20,970 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:02:20,971 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 00:02:20,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:20,971 INFO L82 PathProgramCache]: Analyzing trace with hash 775445239, now seen corresponding path program 1 times [2020-11-07 00:02:20,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:20,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1497740092] [2020-11-07 00:02:20,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:20,976 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:21,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:21,456 WARN L194 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:21,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:21,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:21,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:21,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:21,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:21,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:21,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:21,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:21,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:21,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:21,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:02:21,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:21,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:02:21,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:21,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-11-07 00:02:21,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:21,696 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 00:02:21,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1497740092] [2020-11-07 00:02:21,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:21,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:02:21,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360374467] [2020-11-07 00:02:21,699 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:02:21,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:21,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:02:21,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:02:21,701 INFO L87 Difference]: Start difference. First operand 263 states and 285 transitions. Second operand 9 states. [2020-11-07 00:02:22,430 WARN L194 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:22,908 WARN L194 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 00:02:23,297 WARN L194 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 00:02:23,698 WARN L194 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:24,078 WARN L194 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:02:24,458 WARN L194 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:25,668 WARN L194 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:02:28,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:28,613 INFO L93 Difference]: Finished difference Result 702 states and 809 transitions. [2020-11-07 00:02:28,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 00:02:28,613 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-11-07 00:02:28,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:28,619 INFO L225 Difference]: With dead ends: 702 [2020-11-07 00:02:28,619 INFO L226 Difference]: Without dead ends: 554 [2020-11-07 00:02:28,621 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 [2020-11-07 00:02:28,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2020-11-07 00:02:28,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 485. [2020-11-07 00:02:28,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2020-11-07 00:02:28,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 544 transitions. [2020-11-07 00:02:28,891 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 544 transitions. Word has length 169 [2020-11-07 00:02:28,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:28,891 INFO L481 AbstractCegarLoop]: Abstraction has 485 states and 544 transitions. [2020-11-07 00:02:28,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:02:28,892 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 544 transitions. [2020-11-07 00:02:28,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-11-07 00:02:28,895 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:28,895 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 00:02:28,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:02:28,896 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 00:02:28,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:28,897 INFO L82 PathProgramCache]: Analyzing trace with hash 941449922, now seen corresponding path program 1 times [2020-11-07 00:02:28,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:28,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1686420492] [2020-11-07 00:02:28,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:28,901 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:28,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:29,371 WARN L194 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:29,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:29,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:29,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:29,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:29,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:29,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:29,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:29,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:29,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-07 00:02:29,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:29,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-11-07 00:02:29,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:29,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-11-07 00:02:29,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:29,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-11-07 00:02:29,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:29,553 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 00:02:29,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1686420492] [2020-11-07 00:02:29,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:29,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:02:29,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757764079] [2020-11-07 00:02:29,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:02:29,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:29,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:02:29,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:02:29,557 INFO L87 Difference]: Start difference. First operand 485 states and 544 transitions. Second operand 9 states. [2020-11-07 00:02:30,226 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:32,759 WARN L194 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:33,198 WARN L194 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:02:33,647 WARN L194 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:34,177 WARN L194 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:34,644 WARN L194 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:02:35,059 WARN L194 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:35,451 WARN L194 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:36,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:36,485 INFO L93 Difference]: Finished difference Result 1303 states and 1574 transitions. [2020-11-07 00:02:36,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 00:02:36,486 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-11-07 00:02:36,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:36,494 INFO L225 Difference]: With dead ends: 1303 [2020-11-07 00:02:36,494 INFO L226 Difference]: Without dead ends: 933 [2020-11-07 00:02:36,497 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-07 00:02:36,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2020-11-07 00:02:36,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 833. [2020-11-07 00:02:36,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 833 states. [2020-11-07 00:02:36,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 959 transitions. [2020-11-07 00:02:36,830 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 959 transitions. Word has length 178 [2020-11-07 00:02:36,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:36,831 INFO L481 AbstractCegarLoop]: Abstraction has 833 states and 959 transitions. [2020-11-07 00:02:36,831 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:02:36,831 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 959 transitions. [2020-11-07 00:02:36,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-07 00:02:36,836 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:36,836 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 00:02:36,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:02:36,837 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 00:02:36,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:36,838 INFO L82 PathProgramCache]: Analyzing trace with hash 481233879, now seen corresponding path program 1 times [2020-11-07 00:02:36,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:36,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1679952552] [2020-11-07 00:02:36,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:36,842 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:36,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:37,234 WARN L194 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:37,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:37,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:37,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:37,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:37,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:37,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:37,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:37,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:37,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:37,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-07 00:02:37,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:37,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-07 00:02:37,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:37,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-11-07 00:02:37,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:37,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-11-07 00:02:37,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:37,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-11-07 00:02:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:37,387 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 00:02:37,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1679952552] [2020-11-07 00:02:37,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:37,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:02:37,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787888055] [2020-11-07 00:02:37,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:02:37,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:37,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:02:37,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:02:37,392 INFO L87 Difference]: Start difference. First operand 833 states and 959 transitions. Second operand 6 states. [2020-11-07 00:02:38,098 WARN L194 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:40,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:40,607 INFO L93 Difference]: Finished difference Result 1898 states and 2292 transitions. [2020-11-07 00:02:40,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 00:02:40,607 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 183 [2020-11-07 00:02:40,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:40,617 INFO L225 Difference]: With dead ends: 1898 [2020-11-07 00:02:40,618 INFO L226 Difference]: Without dead ends: 1180 [2020-11-07 00:02:40,621 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 00:02:40,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2020-11-07 00:02:41,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 1082. [2020-11-07 00:02:41,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1082 states. [2020-11-07 00:02:41,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1237 transitions. [2020-11-07 00:02:41,229 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1237 transitions. Word has length 183 [2020-11-07 00:02:41,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:41,229 INFO L481 AbstractCegarLoop]: Abstraction has 1082 states and 1237 transitions. [2020-11-07 00:02:41,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:02:41,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1237 transitions. [2020-11-07 00:02:41,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-07 00:02:41,234 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:41,234 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 00:02:41,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:02:41,234 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 00:02:41,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:41,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1240405268, now seen corresponding path program 1 times [2020-11-07 00:02:41,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:41,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [923097553] [2020-11-07 00:02:41,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:41,239 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:02:41,316 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:02:41,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:02:41,389 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:02:41,585 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:02:41,586 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:02:41,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 00:02:41,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:02:41 BoogieIcfgContainer [2020-11-07 00:02:41,626 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:02:41,629 INFO L168 Benchmark]: Toolchain (without parser) took 29220.68 ms. Allocated memory was 151.0 MB in the beginning and 596.6 MB in the end (delta: 445.6 MB). Free memory was 127.0 MB in the beginning and 427.6 MB in the end (delta: -300.6 MB). Peak memory consumption was 146.5 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:41,631 INFO L168 Benchmark]: CDTParser took 1.08 ms. Allocated memory is still 151.0 MB. Free memory is still 125.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:02:41,636 INFO L168 Benchmark]: CACSL2BoogieTranslator took 587.05 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 105.0 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:41,638 INFO L168 Benchmark]: Boogie Preprocessor took 168.09 ms. Allocated memory is still 151.0 MB. Free memory was 105.0 MB in the beginning and 101.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:41,639 INFO L168 Benchmark]: RCFGBuilder took 1421.72 ms. Allocated memory was 151.0 MB in the beginning and 188.7 MB in the end (delta: 37.7 MB). Free memory was 101.1 MB in the beginning and 135.6 MB in the end (delta: -34.6 MB). Peak memory consumption was 35.8 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:41,640 INFO L168 Benchmark]: TraceAbstraction took 27026.84 ms. Allocated memory was 188.7 MB in the beginning and 596.6 MB in the end (delta: 407.9 MB). Free memory was 135.6 MB in the beginning and 427.6 MB in the end (delta: -291.9 MB). Peak memory consumption was 116.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:41,650 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.08 ms. Allocated memory is still 151.0 MB. Free memory is still 125.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 587.05 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 105.0 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 168.09 ms. Allocated memory is still 151.0 MB. Free memory was 105.0 MB in the beginning and 101.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1421.72 ms. Allocated memory was 151.0 MB in the beginning and 188.7 MB in the end (delta: 37.7 MB). Free memory was 101.1 MB in the beginning and 135.6 MB in the end (delta: -34.6 MB). Peak memory consumption was 35.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 27026.84 ms. Allocated memory was 188.7 MB in the beginning and 596.6 MB in the end (delta: 407.9 MB). Free memory was 135.6 MB in the beginning and 427.6 MB in the end (delta: -291.9 MB). Peak memory consumption was 116.0 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: [L87] int waterLevel = 1; [L88] int methaneLevelCritical = 0; [L187] int pumpRunning = 0; [L188] int systemActive = 1; [L627] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L824] int cleanupTimeShifts = 4; [L897] int retValue_acc ; [L898] int tmp ; [L902] FCALL select_helpers() [L903] FCALL select_features() [L904] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L904] RET, EXPR valid_product() [L904] tmp = valid_product() [L906] COND TRUE \read(tmp) [L908] FCALL setup() [L909] CALL runTest() [L891] CALL test() [L383] int splverifierCounter ; [L384] int tmp ; [L385] int tmp___0 ; [L386] int tmp___1 ; [L387] int tmp___2 ; [L390] splverifierCounter = 0 [L392] COND TRUE 1 [L394] COND TRUE splverifierCounter < 4 [L400] tmp = __VERIFIER_nondet_int() [L402] COND TRUE \read(tmp) [L404] CALL waterRise() [L105] COND TRUE waterLevel < 2 [L106] waterLevel = waterLevel + 1 [L404] RET waterRise() [L410] tmp___0 = __VERIFIER_nondet_int() [L412] COND FALSE !(\read(tmp___0)) [L420] tmp___2 = __VERIFIER_nondet_int() [L422] COND FALSE !(\read(tmp___2)) [L426] tmp___1 = __VERIFIER_nondet_int() [L428] COND TRUE \read(tmp___1) [L430] CALL stopSystem() [L369] COND FALSE !(\read(pumpRunning)) [L376] systemActive = 0 [L430] RET stopSystem() [L437] CALL timeShift() [L195] COND FALSE !(\read(pumpRunning)) [L202] COND FALSE !(\read(systemActive)) [L210] CALL __utac_acc__Specification3_spec__1() [L921] int tmp ; [L922] int tmp___0 ; [L923] int tmp___1 ; [L927] CALL, EXPR isMethaneLevelCritical() [L126] int retValue_acc ; [L129] retValue_acc = methaneLevelCritical [L130] return (retValue_acc); [L927] RET, EXPR isMethaneLevelCritical() [L927] tmp = isMethaneLevelCritical() [L929] COND FALSE !(\read(tmp)) [L933] CALL, EXPR getWaterLevel() [L158] int retValue_acc ; [L161] retValue_acc = waterLevel [L162] return (retValue_acc); [L933] RET, EXPR getWaterLevel() [L933] tmp___0 = getWaterLevel() [L935] COND TRUE tmp___0 == 2 [L937] CALL, EXPR isPumpRunning() [L302] int retValue_acc ; [L305] retValue_acc = pumpRunning [L306] return (retValue_acc); [L937] RET, EXPR isPumpRunning() [L937] tmp___1 = isPumpRunning() [L939] COND FALSE !(\read(tmp___1)) [L943] CALL __automaton_fail() [L453] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product39.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 643 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 26.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 21.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1293 SDtfs, 2418 SDslu, 1619 SDs, 0 SdLazy, 3675 SolverSat, 861 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 8.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1082occurred 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: 1.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 346 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...