/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_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 23:59:52,652 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 23:59:52,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 23:59:52,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 23:59:52,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 23:59:52,695 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 23:59:52,697 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 23:59:52,699 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 23:59:52,701 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 23:59:52,702 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 23:59:52,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 23:59:52,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 23:59:52,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 23:59:52,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 23:59:52,708 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 23:59:52,710 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 23:59:52,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 23:59:52,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 23:59:52,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 23:59:52,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 23:59:52,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 23:59:52,721 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 23:59:52,722 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 23:59:52,723 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 23:59:52,726 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-06 23:59:52,727 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-06 23:59:52,727 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-06 23:59:52,728 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-06 23:59:52,729 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-06 23:59:52,730 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-06 23:59:52,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-06 23:59:52,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-06 23:59:52,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-06 23:59:52,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-06 23:59:52,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-06 23:59:52,735 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-06 23:59:52,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-06 23:59:52,737 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-06 23:59:52,737 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 23:59:52,738 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 23:59:52,739 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 23:59:52,740 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-06 23:59:52,753 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 23:59:52,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 23:59:52,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 23:59:52,755 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 23:59:52,756 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 23:59:52,756 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 23:59:52,756 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 23:59:52,757 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 23:59:52,757 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 23:59:52,757 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 23:59:52,758 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 23:59:52,758 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 23:59:52,758 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 23:59:52,758 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 23:59:52,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 23:59:52,759 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-06 23:59:52,759 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 23:59:52,759 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 23:59:52,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 23:59:52,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 23:59:52,760 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-06 23:59:52,761 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 23:59:52,761 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 23:59:53,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 23:59:53,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 23:59:53,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 23:59:53,194 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 23:59:53,194 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 23:59:53,195 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c [2020-11-06 23:59:53,283 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e29537fc/4749ffe5f1824d739cb5edc9e84bd23e/FLAG2d2bf27ba [2020-11-06 23:59:54,066 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 23:59:54,070 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c [2020-11-06 23:59:54,094 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e29537fc/4749ffe5f1824d739cb5edc9e84bd23e/FLAG2d2bf27ba [2020-11-06 23:59:54,317 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e29537fc/4749ffe5f1824d739cb5edc9e84bd23e [2020-11-06 23:59:54,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 23:59:54,327 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 23:59:54,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 23:59:54,329 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 23:59:54,332 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 23:59:54,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:59:54" (1/1) ... [2020-11-06 23:59:54,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ce625ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:54, skipping insertion in model container [2020-11-06 23:59:54,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:59:54" (1/1) ... [2020-11-06 23:59:54,345 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 23:59:54,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 23:59:54,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 23:59:54,723 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 23:59:54,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 23:59:54,878 INFO L208 MainTranslator]: Completed translation [2020-11-06 23:59:54,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:54 WrapperNode [2020-11-06 23:59:54,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 23:59:54,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 23:59:54,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 23:59:54,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 23:59:54,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:54" (1/1) ... [2020-11-06 23:59:54,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:54" (1/1) ... [2020-11-06 23:59:54,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:54" (1/1) ... [2020-11-06 23:59:54,915 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:54" (1/1) ... [2020-11-06 23:59:54,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:54" (1/1) ... [2020-11-06 23:59:54,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:54" (1/1) ... [2020-11-06 23:59:54,960 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:54" (1/1) ... [2020-11-06 23:59:54,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 23:59:54,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 23:59:54,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 23:59:54,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 23:59:54,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:54" (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 [2020-11-06 23:59:55,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 23:59:55,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 23:59:55,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-06 23:59:55,081 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 23:59:55,081 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-06 23:59:55,081 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-06 23:59:55,082 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-06 23:59:55,082 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-06 23:59:55,082 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-06 23:59:55,082 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-06 23:59:55,082 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-06 23:59:55,082 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-06 23:59:55,083 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-06 23:59:55,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-06 23:59:55,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-06 23:59:55,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-06 23:59:55,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-06 23:59:55,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-06 23:59:55,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-06 23:59:55,084 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-06 23:59:55,084 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-06 23:59:55,084 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-06 23:59:55,085 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-06 23:59:55,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-06 23:59:55,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-06 23:59:55,085 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-06 23:59:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-06 23:59:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-06 23:59:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-06 23:59:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 23:59:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-06 23:59:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-06 23:59:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-06 23:59:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-06 23:59:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-06 23:59:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-06 23:59:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 23:59:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 23:59:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 23:59:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 23:59:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 23:59:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-06 23:59:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-06 23:59:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-06 23:59:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-06 23:59:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-06 23:59:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-06 23:59:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-06 23:59:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-06 23:59:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-06 23:59:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-06 23:59:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-06 23:59:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-06 23:59:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-06 23:59:55,091 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-06 23:59:55,091 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-06 23:59:55,091 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-06 23:59:55,091 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-06 23:59:55,091 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-06 23:59:55,091 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-06 23:59:55,092 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-06 23:59:55,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-06 23:59:55,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-06 23:59:55,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 23:59:55,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-06 23:59:55,092 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-06 23:59:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 23:59:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-06 23:59:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-06 23:59:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 23:59:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-06 23:59:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-06 23:59:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-06 23:59:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-06 23:59:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-06 23:59:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-06 23:59:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-06 23:59:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-06 23:59:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-06 23:59:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-06 23:59:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-06 23:59:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-06 23:59:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 23:59:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 23:59:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 23:59:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 23:59:56,457 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 23:59:56,463 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-06 23:59:56,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:59:56 BoogieIcfgContainer [2020-11-06 23:59:56,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 23:59:56,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 23:59:56,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 23:59:56,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 23:59:56,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:59:54" (1/3) ... [2020-11-06 23:59:56,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea8e940 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:59:56, skipping insertion in model container [2020-11-06 23:59:56,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:59:54" (2/3) ... [2020-11-06 23:59:56,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea8e940 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:59:56, skipping insertion in model container [2020-11-06 23:59:56,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:59:56" (3/3) ... [2020-11-06 23:59:56,481 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product03.cil.c [2020-11-06 23:59:56,493 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-06 23:59:56,497 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-06 23:59:56,509 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-06 23:59:56,542 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 23:59:56,542 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 23:59:56,543 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-06 23:59:56,543 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 23:59:56,543 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 23:59:56,543 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 23:59:56,543 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 23:59:56,543 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 23:59:56,577 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states. [2020-11-06 23:59:56,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-06 23:59:56,597 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:59:56,598 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] [2020-11-06 23:59:56,599 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]=== [2020-11-06 23:59:56,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:59:56,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1567185735, now seen corresponding path program 1 times [2020-11-06 23:59:56,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:59:56,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1144249596] [2020-11-06 23:59:56,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:59:56,694 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:59:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:57,407 WARN L194 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:59:57,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:59:57,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:57,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:59:57,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:57,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:59:57,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:57,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:59:57,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:57,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:59:57,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:57,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-06 23:59:57,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:57,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-06 23:59:57,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:57,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-06 23:59:57,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:57,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:59:57,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1144249596] [2020-11-06 23:59:57,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:59:57,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-06 23:59:57,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487829181] [2020-11-06 23:59:57,653 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 23:59:57,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:59:57,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 23:59:57,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-06 23:59:57,671 INFO L87 Difference]: Start difference. First operand 276 states. Second operand 3 states. [2020-11-06 23:59:59,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:59:59,069 INFO L93 Difference]: Finished difference Result 395 states and 472 transitions. [2020-11-06 23:59:59,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 23:59:59,071 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-06 23:59:59,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:59:59,087 INFO L225 Difference]: With dead ends: 395 [2020-11-06 23:59:59,088 INFO L226 Difference]: Without dead ends: 255 [2020-11-06 23:59:59,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-06 23:59:59,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-11-06 23:59:59,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 216. [2020-11-06 23:59:59,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-11-06 23:59:59,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 231 transitions. [2020-11-06 23:59:59,229 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 231 transitions. Word has length 159 [2020-11-06 23:59:59,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:59:59,230 INFO L481 AbstractCegarLoop]: Abstraction has 216 states and 231 transitions. [2020-11-06 23:59:59,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 23:59:59,230 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 231 transitions. [2020-11-06 23:59:59,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-06 23:59:59,235 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:59:59,236 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] [2020-11-06 23:59:59,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 23:59:59,236 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]=== [2020-11-06 23:59:59,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:59:59,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1347304768, now seen corresponding path program 1 times [2020-11-06 23:59:59,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:59:59,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1507020851] [2020-11-06 23:59:59,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:59:59,242 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:59:59,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:59,784 WARN L194 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:59:59,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:59:59,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:59,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:59:59,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:59,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:59:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:59,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:59:59,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:59,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:59:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:59,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-06 23:59:59,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:59,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-06 23:59:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:59,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-06 23:59:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:59:59,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:59:59,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1507020851] [2020-11-06 23:59:59,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:59:59,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-06 23:59:59,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126151051] [2020-11-06 23:59:59,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-06 23:59:59,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:59:59,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-06 23:59:59,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-06 23:59:59,942 INFO L87 Difference]: Start difference. First operand 216 states and 231 transitions. Second operand 4 states. [2020-11-07 00:00:00,789 WARN L194 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:00:01,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:00:01,528 INFO L93 Difference]: Finished difference Result 300 states and 333 transitions. [2020-11-07 00:00:01,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:00:01,529 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 00:00:01,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:00:01,536 INFO L225 Difference]: With dead ends: 300 [2020-11-07 00:00:01,539 INFO L226 Difference]: Without dead ends: 238 [2020-11-07 00:00:01,541 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 00:00:01,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-11-07 00:00:01,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 206. [2020-11-07 00:00:01,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-11-07 00:00:01,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 218 transitions. [2020-11-07 00:00:01,644 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 218 transitions. Word has length 160 [2020-11-07 00:00:01,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:00:01,646 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 218 transitions. [2020-11-07 00:00:01,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:00:01,646 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 218 transitions. [2020-11-07 00:00:01,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-11-07 00:00:01,654 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:00:01,655 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 00:00:01,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:00:01,655 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 00:00:01,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:00:01,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1121169911, now seen corresponding path program 1 times [2020-11-07 00:00:01,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:00:01,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2023459893] [2020-11-07 00:00:01,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:00:01,660 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:00:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:02,208 WARN L194 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:00:02,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:00:02,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:02,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:00:02,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:02,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:00:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:02,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:00:02,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:02,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:00:02,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:02,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:00:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:02,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:00:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:02,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-11-07 00:00:02,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:02,396 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 00:00:02,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2023459893] [2020-11-07 00:00:02,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:00:02,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:00:02,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715838997] [2020-11-07 00:00:02,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:00:02,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:00:02,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:00:02,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:00:02,402 INFO L87 Difference]: Start difference. First operand 206 states and 218 transitions. Second operand 9 states. [2020-11-07 00:00:03,026 WARN L194 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:00:03,520 WARN L194 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 00:00:03,904 WARN L194 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 00:00:04,306 WARN L194 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:00:04,687 WARN L194 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:00:05,048 WARN L194 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:00:06,149 WARN L194 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:00:07,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:00:07,786 INFO L93 Difference]: Finished difference Result 523 states and 596 transitions. [2020-11-07 00:00:07,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 00:00:07,787 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-11-07 00:00:07,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:00:07,793 INFO L225 Difference]: With dead ends: 523 [2020-11-07 00:00:07,793 INFO L226 Difference]: Without dead ends: 432 [2020-11-07 00:00:07,795 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 00:00:07,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2020-11-07 00:00:07,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 359. [2020-11-07 00:00:07,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-11-07 00:00:07,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 394 transitions. [2020-11-07 00:00:07,986 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 394 transitions. Word has length 169 [2020-11-07 00:00:07,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:00:07,986 INFO L481 AbstractCegarLoop]: Abstraction has 359 states and 394 transitions. [2020-11-07 00:00:07,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:00:07,986 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 394 transitions. [2020-11-07 00:00:07,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-11-07 00:00:07,989 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:00:07,989 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] [2020-11-07 00:00:07,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:00:07,990 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 00:00:07,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:00:07,990 INFO L82 PathProgramCache]: Analyzing trace with hash -6034551, now seen corresponding path program 1 times [2020-11-07 00:00:07,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:00:07,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1872627397] [2020-11-07 00:00:07,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:00:07,994 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:00:08,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:08,481 WARN L194 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:00:08,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:00:08,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:08,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:00:08,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:08,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:00:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:08,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:00:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:08,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:00:08,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:08,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-11-07 00:00:08,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:08,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-11-07 00:00:08,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:08,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-11-07 00:00:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:08,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-11-07 00:00:08,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:08,625 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 00:00:08,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1872627397] [2020-11-07 00:00:08,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:00:08,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-07 00:00:08,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097058942] [2020-11-07 00:00:08,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 00:00:08,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:00:08,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 00:00:08,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-11-07 00:00:08,629 INFO L87 Difference]: Start difference. First operand 359 states and 394 transitions. Second operand 8 states. [2020-11-07 00:00:09,254 WARN L194 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:00:10,838 WARN L194 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:00:11,227 WARN L194 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:00:11,658 WARN L194 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:00:12,082 WARN L194 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:00:12,476 WARN L194 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:00:12,849 WARN L194 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:00:13,264 WARN L194 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:00:13,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:00:13,747 INFO L93 Difference]: Finished difference Result 857 states and 1001 transitions. [2020-11-07 00:00:13,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 00:00:13,748 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 172 [2020-11-07 00:00:13,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:00:13,754 INFO L225 Difference]: With dead ends: 857 [2020-11-07 00:00:13,754 INFO L226 Difference]: Without dead ends: 613 [2020-11-07 00:00:13,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-11-07 00:00:13,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2020-11-07 00:00:14,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 577. [2020-11-07 00:00:14,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2020-11-07 00:00:14,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 653 transitions. [2020-11-07 00:00:14,008 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 653 transitions. Word has length 172 [2020-11-07 00:00:14,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:00:14,009 INFO L481 AbstractCegarLoop]: Abstraction has 577 states and 653 transitions. [2020-11-07 00:00:14,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 00:00:14,009 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 653 transitions. [2020-11-07 00:00:14,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-11-07 00:00:14,012 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:00:14,013 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] [2020-11-07 00:00:14,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:00:14,013 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 00:00:14,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:00:14,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1708779575, now seen corresponding path program 1 times [2020-11-07 00:00:14,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:00:14,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1067872409] [2020-11-07 00:00:14,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:00:14,017 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:00:14,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:14,421 WARN L194 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:00:14,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:00:14,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:14,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:00:14,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:14,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:00:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:14,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:00:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:14,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:00:14,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:14,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-11-07 00:00:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:14,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:00:14,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:14,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-11-07 00:00:14,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:14,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-11-07 00:00:14,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:14,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-11-07 00:00:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:14,563 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 00:00:14,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1067872409] [2020-11-07 00:00:14,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:00:14,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-07 00:00:14,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282675921] [2020-11-07 00:00:14,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 00:00:14,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:00:14,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 00:00:14,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-07 00:00:14,565 INFO L87 Difference]: Start difference. First operand 577 states and 653 transitions. Second operand 5 states. [2020-11-07 00:00:15,226 WARN L194 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:00:16,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:00:16,191 INFO L93 Difference]: Finished difference Result 952 states and 1102 transitions. [2020-11-07 00:00:16,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-07 00:00:16,191 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 177 [2020-11-07 00:00:16,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:00:16,195 INFO L225 Difference]: With dead ends: 952 [2020-11-07 00:00:16,195 INFO L226 Difference]: Without dead ends: 550 [2020-11-07 00:00:16,198 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-07 00:00:16,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2020-11-07 00:00:16,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 528. [2020-11-07 00:00:16,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-11-07 00:00:16,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 579 transitions. [2020-11-07 00:00:16,395 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 579 transitions. Word has length 177 [2020-11-07 00:00:16,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:00:16,396 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 579 transitions. [2020-11-07 00:00:16,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 00:00:16,396 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 579 transitions. [2020-11-07 00:00:16,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-11-07 00:00:16,399 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:00:16,399 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] [2020-11-07 00:00:16,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:00:16,400 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 00:00:16,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:00:16,401 INFO L82 PathProgramCache]: Analyzing trace with hash -863526271, now seen corresponding path program 1 times [2020-11-07 00:00:16,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:00:16,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1343176695] [2020-11-07 00:00:16,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:00:16,405 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:00:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:00:16,480 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:00:16,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:00:16,552 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:00:16,776 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:00:16,776 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:00:16,779 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 00:00:16,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:00:16 BoogieIcfgContainer [2020-11-07 00:00:16,812 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:00:16,815 INFO L168 Benchmark]: Toolchain (without parser) took 22492.03 ms. Allocated memory was 125.8 MB in the beginning and 404.8 MB in the end (delta: 278.9 MB). Free memory was 101.7 MB in the beginning and 219.9 MB in the end (delta: -118.2 MB). Peak memory consumption was 161.3 MB. Max. memory is 8.0 GB. [2020-11-07 00:00:16,816 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 125.8 MB. Free memory is still 88.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:00:16,822 INFO L168 Benchmark]: CACSL2BoogieTranslator took 550.59 ms. Allocated memory is still 125.8 MB. Free memory was 101.0 MB in the beginning and 80.6 MB in the end (delta: 20.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-11-07 00:00:16,824 INFO L168 Benchmark]: Boogie Preprocessor took 88.01 ms. Allocated memory is still 125.8 MB. Free memory was 80.6 MB in the beginning and 76.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-11-07 00:00:16,826 INFO L168 Benchmark]: RCFGBuilder took 1497.60 ms. Allocated memory was 125.8 MB in the beginning and 161.5 MB in the end (delta: 35.7 MB). Free memory was 76.9 MB in the beginning and 93.9 MB in the end (delta: -17.1 MB). Peak memory consumption was 19.8 MB. Max. memory is 8.0 GB. [2020-11-07 00:00:16,826 INFO L168 Benchmark]: TraceAbstraction took 20337.74 ms. Allocated memory was 161.5 MB in the beginning and 404.8 MB in the end (delta: 243.3 MB). Free memory was 93.4 MB in the beginning and 219.9 MB in the end (delta: -126.5 MB). Peak memory consumption was 116.8 MB. Max. memory is 8.0 GB. [2020-11-07 00:00:16,838 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 125.8 MB. Free memory is still 88.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 550.59 ms. Allocated memory is still 125.8 MB. Free memory was 101.0 MB in the beginning and 80.6 MB in the end (delta: 20.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 88.01 ms. Allocated memory is still 125.8 MB. Free memory was 80.6 MB in the beginning and 76.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1497.60 ms. Allocated memory was 125.8 MB in the beginning and 161.5 MB in the end (delta: 35.7 MB). Free memory was 76.9 MB in the beginning and 93.9 MB in the end (delta: -17.1 MB). Peak memory consumption was 19.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 20337.74 ms. Allocated memory was 161.5 MB in the beginning and 404.8 MB in the end (delta: 243.3 MB). Free memory was 93.4 MB in the beginning and 219.9 MB in the end (delta: -126.5 MB). Peak memory consumption was 116.8 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: [L121] int pumpRunning = 0; [L122] int systemActive = 1; [L413] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L692] int cleanupTimeShifts = 4; [L788] int waterLevel = 1; [L789] int methaneLevelCritical = 0; [L765] int retValue_acc ; [L766] int tmp ; [L770] FCALL select_helpers() [L771] FCALL select_features() [L772] CALL, EXPR valid_product() [L639] int retValue_acc ; [L642] retValue_acc = 1 [L643] return (retValue_acc); [L772] RET, EXPR valid_product() [L772] tmp = valid_product() [L774] COND TRUE \read(tmp) [L776] FCALL setup() [L777] CALL runTest() [L759] CALL test() [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND TRUE \read(tmp) [L69] CALL waterRise() [L806] COND TRUE waterLevel < 2 [L807] waterLevel = waterLevel + 1 [L69] RET waterRise() [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) [L102] CALL timeShift() [L129] COND FALSE !(\read(pumpRunning)) [L136] COND TRUE \read(systemActive) [L138] FCALL processEnvironment() [L144] CALL __utac_acc__Specification3_spec__1() [L659] int tmp ; [L660] int tmp___0 ; [L661] int tmp___1 ; [L665] CALL, EXPR isMethaneLevelCritical() [L827] int retValue_acc ; [L830] retValue_acc = methaneLevelCritical [L831] return (retValue_acc); [L665] RET, EXPR isMethaneLevelCritical() [L665] tmp = isMethaneLevelCritical() [L667] COND FALSE !(\read(tmp)) [L671] CALL, EXPR getWaterLevel() [L859] int retValue_acc ; [L862] retValue_acc = waterLevel [L863] return (retValue_acc); [L671] RET, EXPR getWaterLevel() [L671] tmp___0 = getWaterLevel() [L673] COND TRUE tmp___0 == 2 [L675] CALL, EXPR isPumpRunning() [L184] int retValue_acc ; [L187] retValue_acc = pumpRunning [L188] return (retValue_acc); [L675] RET, EXPR isPumpRunning() [L675] tmp___1 = isPumpRunning() [L677] COND FALSE !(\read(tmp___1)) [L681] CALL __automaton_fail() [L652] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product03.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 597 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 15.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 987 SDtfs, 1126 SDslu, 1347 SDs, 0 SdLazy, 2312 SolverSat, 357 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 8.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=577occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 5 MinimizatonAttempts, 202 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...