/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_product08.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:00:19,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:00:19,579 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:00:19,620 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:00:19,621 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:00:19,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:00:19,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:00:19,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:00:19,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:00:19,630 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:00:19,631 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:00:19,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:00:19,633 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:00:19,634 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:00:19,636 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:00:19,637 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:00:19,638 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:00:19,641 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:00:19,643 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:00:19,650 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:00:19,653 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:00:19,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:00:19,658 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:00:19,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:00:19,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:00:19,675 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:00:19,675 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:00:19,676 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:00:19,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:00:19,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:00:19,681 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:00:19,682 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:00:19,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:00:19,689 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:00:19,690 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:00:19,690 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:00:19,691 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:00:19,691 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:00:19,691 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:00:19,692 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:00:19,693 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:00:19,694 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 00:00:19,718 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:00:19,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:00:19,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:00:19,724 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:00:19,724 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:00:19,724 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:00:19,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:00:19,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:00:19,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:00:19,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:00:19,726 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:00:19,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:00:19,726 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:00:19,726 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:00:19,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:00:19,727 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:00:19,727 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:00:19,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:00:19,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:00:19,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:00:19,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:00:19,728 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:00:19,728 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:00:20,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:00:20,168 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:00:20,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:00:20,173 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:00:20,173 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:00:20,174 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-11-07 00:00:20,272 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cd0d950f/4074d798e9c04fadb975bc7de217dd61/FLAGea25f0d29 [2020-11-07 00:00:20,967 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:00:20,968 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-11-07 00:00:20,981 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cd0d950f/4074d798e9c04fadb975bc7de217dd61/FLAGea25f0d29 [2020-11-07 00:00:21,251 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cd0d950f/4074d798e9c04fadb975bc7de217dd61 [2020-11-07 00:00:21,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:00:21,262 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:00:21,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:00:21,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:00:21,271 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:00:21,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:00:21" (1/1) ... [2020-11-07 00:00:21,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18227538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:21, skipping insertion in model container [2020-11-07 00:00:21,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:00:21" (1/1) ... [2020-11-07 00:00:21,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:00:21,359 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:00:21,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:00:21,733 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:00:21,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:00:21,900 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:00:21,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:21 WrapperNode [2020-11-07 00:00:21,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:00:21,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:00:21,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:00:21,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:00:21,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:21" (1/1) ... [2020-11-07 00:00:21,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:21" (1/1) ... [2020-11-07 00:00:21,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:21" (1/1) ... [2020-11-07 00:00:21,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:21" (1/1) ... [2020-11-07 00:00:21,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:21" (1/1) ... [2020-11-07 00:00:22,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:21" (1/1) ... [2020-11-07 00:00:22,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:21" (1/1) ... [2020-11-07 00:00:22,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:00:22,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:00:22,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:00:22,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:00:22,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:21" (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 00:00:22,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:00:22,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:00:22,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 00:00:22,193 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:00:22,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:00:22,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 00:00:22,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 00:00:22,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 00:00:22,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 00:00:22,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 00:00:22,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 00:00:22,195 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 00:00:22,196 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 00:00:22,196 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 00:00:22,196 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 00:00:22,196 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 00:00:22,197 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 00:00:22,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 00:00:22,197 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 00:00:22,197 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 00:00:22,198 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 00:00:22,199 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 00:00:22,201 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 00:00:22,201 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 00:00:22,202 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 00:00:22,202 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 00:00:22,202 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 00:00:22,202 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-07 00:00:22,203 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-11-07 00:00:22,203 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 00:00:22,203 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 00:00:22,203 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 00:00:22,203 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 00:00:22,204 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 00:00:22,204 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 00:00:22,204 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 00:00:22,204 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 00:00:22,204 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:00:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:00:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:00:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:00:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:00:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:00:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 00:00:22,206 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 00:00:22,206 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 00:00:22,206 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 00:00:22,206 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 00:00:22,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:00:22,206 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 00:00:22,207 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 00:00:22,207 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 00:00:22,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:00:22,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:00:22,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:00:22,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:00:22,208 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 00:00:22,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:00:22,208 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 00:00:22,208 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 00:00:22,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:00:22,209 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 00:00:22,209 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 00:00:22,209 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 00:00:22,209 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 00:00:22,209 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 00:00:22,209 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 00:00:22,210 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 00:00:22,210 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-11-07 00:00:22,210 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-07 00:00:22,210 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 00:00:22,210 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 00:00:22,211 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 00:00:22,211 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 00:00:22,211 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 00:00:22,211 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 00:00:22,212 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 00:00:22,212 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 00:00:22,212 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 00:00:22,212 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 00:00:22,213 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 00:00:22,213 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 00:00:22,214 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 00:00:22,214 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 00:00:22,214 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 00:00:22,214 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 00:00:22,215 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:00:22,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:00:22,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:00:22,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:00:23,671 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:00:23,671 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 00:00:23,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:00:23 BoogieIcfgContainer [2020-11-07 00:00:23,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:00:23,676 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:00:23,676 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:00:23,680 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:00:23,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:00:21" (1/3) ... [2020-11-07 00:00:23,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15d64e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:00:23, skipping insertion in model container [2020-11-07 00:00:23,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:21" (2/3) ... [2020-11-07 00:00:23,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15d64e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:00:23, skipping insertion in model container [2020-11-07 00:00:23,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:00:23" (3/3) ... [2020-11-07 00:00:23,683 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product08.cil.c [2020-11-07 00:00:23,699 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:00:23,704 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 00:00:23,716 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 00:00:23,744 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:00:23,744 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:00:23,744 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:00:23,744 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:00:23,744 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:00:23,745 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:00:23,745 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:00:23,745 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:00:23,767 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states. [2020-11-07 00:00:23,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 00:00:23,788 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:00:23,789 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 00:00:23,790 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 00:00:23,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:00:23,796 INFO L82 PathProgramCache]: Analyzing trace with hash 222956994, now seen corresponding path program 1 times [2020-11-07 00:00:23,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:00:23,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [266023520] [2020-11-07 00:00:23,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:00:23,888 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:00:24,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:24,726 WARN L194 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:00:24,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:00:24,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:24,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:00:24,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:24,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:00:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:24,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:00:24,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:24,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:00:24,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:24,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 00:00:24,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:24,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:00:24,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:24,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:00:24,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:24,966 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 00:00:24,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [266023520] [2020-11-07 00:00:24,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:00:24,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 00:00:24,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874234764] [2020-11-07 00:00:24,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 00:00:24,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:00:25,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 00:00:25,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:00:25,015 INFO L87 Difference]: Start difference. First operand 294 states. Second operand 3 states. [2020-11-07 00:00:26,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:00:26,626 INFO L93 Difference]: Finished difference Result 446 states and 535 transitions. [2020-11-07 00:00:26,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 00:00:26,628 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-07 00:00:26,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:00:26,644 INFO L225 Difference]: With dead ends: 446 [2020-11-07 00:00:26,644 INFO L226 Difference]: Without dead ends: 282 [2020-11-07 00:00:26,650 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 00:00:26,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-11-07 00:00:26,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 240. [2020-11-07 00:00:26,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-11-07 00:00:26,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 260 transitions. [2020-11-07 00:00:26,810 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 260 transitions. Word has length 159 [2020-11-07 00:00:26,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:00:26,811 INFO L481 AbstractCegarLoop]: Abstraction has 240 states and 260 transitions. [2020-11-07 00:00:26,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 00:00:26,811 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 260 transitions. [2020-11-07 00:00:26,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 00:00:26,816 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:00:26,816 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 00:00:26,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:00:26,817 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 00:00:26,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:00:26,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1979568266, now seen corresponding path program 1 times [2020-11-07 00:00:26,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:00:26,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1523088644] [2020-11-07 00:00:26,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:00:26,822 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:00:26,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:27,387 WARN L194 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:00:27,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:00:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:27,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:00:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:27,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:00:27,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:27,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:00:27,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:27,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:00:27,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:27,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-07 00:00:27,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:27,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:00:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:27,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 00:00:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:27,488 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 00:00:27,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1523088644] [2020-11-07 00:00:27,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:00:27,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:00:27,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134989888] [2020-11-07 00:00:27,490 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:00:27,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:00:27,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:00:27,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:00:27,491 INFO L87 Difference]: Start difference. First operand 240 states and 260 transitions. Second operand 4 states. [2020-11-07 00:00:28,327 WARN L194 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:00:29,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:00:29,372 INFO L93 Difference]: Finished difference Result 350 states and 394 transitions. [2020-11-07 00:00:29,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:00:29,373 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 00:00:29,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:00:29,383 INFO L225 Difference]: With dead ends: 350 [2020-11-07 00:00:29,383 INFO L226 Difference]: Without dead ends: 265 [2020-11-07 00:00:29,387 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 00:00:29,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-11-07 00:00:29,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 230. [2020-11-07 00:00:29,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-11-07 00:00:29,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 247 transitions. [2020-11-07 00:00:29,518 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 247 transitions. Word has length 160 [2020-11-07 00:00:29,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:00:29,521 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 247 transitions. [2020-11-07 00:00:29,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:00:29,521 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 247 transitions. [2020-11-07 00:00:29,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-11-07 00:00:29,527 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:00:29,527 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:00:29,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:00:29,528 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 00:00:29,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:00:29,529 INFO L82 PathProgramCache]: Analyzing trace with hash 628213075, now seen corresponding path program 1 times [2020-11-07 00:00:29,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:00:29,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [199740317] [2020-11-07 00:00:29,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:00:29,533 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:00:29,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:30,090 WARN L194 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:00:30,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:00:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:30,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:00:30,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:30,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:00:30,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:30,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:00:30,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:30,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:00:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:30,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-11-07 00:00:30,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:30,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-07 00:00:30,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:30,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-11-07 00:00:30,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:30,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-11-07 00:00:30,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:30,270 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 00:00:30,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [199740317] [2020-11-07 00:00:30,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:00:30,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 00:00:30,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743794695] [2020-11-07 00:00:30,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 00:00:30,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:00:30,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 00:00:30,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 00:00:30,276 INFO L87 Difference]: Start difference. First operand 230 states and 247 transitions. Second operand 10 states. [2020-11-07 00:00:30,979 WARN L194 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:00:31,474 WARN L194 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 00:00:31,893 WARN L194 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 00:00:32,270 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:00:32,654 WARN L194 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:00:33,019 WARN L194 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:00:34,232 WARN L194 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:00:36,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:00:36,707 INFO L93 Difference]: Finished difference Result 623 states and 728 transitions. [2020-11-07 00:00:36,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-07 00:00:36,708 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-11-07 00:00:36,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:00:36,714 INFO L225 Difference]: With dead ends: 623 [2020-11-07 00:00:36,715 INFO L226 Difference]: Without dead ends: 508 [2020-11-07 00:00:36,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-11-07 00:00:36,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-11-07 00:00:36,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 415. [2020-11-07 00:00:36,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-11-07 00:00:36,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 464 transitions. [2020-11-07 00:00:36,924 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 464 transitions. Word has length 173 [2020-11-07 00:00:36,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:00:36,925 INFO L481 AbstractCegarLoop]: Abstraction has 415 states and 464 transitions. [2020-11-07 00:00:36,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 00:00:36,925 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 464 transitions. [2020-11-07 00:00:36,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-11-07 00:00:36,928 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:00:36,929 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 00:00:36,929 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:00:36,929 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 00:00:36,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:00:36,930 INFO L82 PathProgramCache]: Analyzing trace with hash -571830235, now seen corresponding path program 1 times [2020-11-07 00:00:36,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:00:36,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1450016909] [2020-11-07 00:00:36,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:00:36,934 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:00:36,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:37,463 WARN L194 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:00:37,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:00:37,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:37,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:00:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:37,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:00:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:37,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:00:37,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:37,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:00:37,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:37,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-07 00:00:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:37,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-11-07 00:00:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:37,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-11-07 00:00:37,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:37,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-11-07 00:00:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:37,675 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 00:00:37,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1450016909] [2020-11-07 00:00:37,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:00:37,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:00:37,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908768987] [2020-11-07 00:00:37,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:00:37,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:00:37,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:00:37,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:00:37,679 INFO L87 Difference]: Start difference. First operand 415 states and 464 transitions. Second operand 9 states. [2020-11-07 00:00:38,369 WARN L194 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:00:40,569 WARN L194 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:00:41,005 WARN L194 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:00:41,440 WARN L194 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:00:41,892 WARN L194 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:00:42,297 WARN L194 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:00:42,694 WARN L194 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:00:43,096 WARN L194 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:00:44,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:00:44,064 INFO L93 Difference]: Finished difference Result 1092 states and 1322 transitions. [2020-11-07 00:00:44,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 00:00:44,064 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-11-07 00:00:44,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:00:44,071 INFO L225 Difference]: With dead ends: 1092 [2020-11-07 00:00:44,071 INFO L226 Difference]: Without dead ends: 792 [2020-11-07 00:00:44,074 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 00:00:44,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2020-11-07 00:00:44,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 693. [2020-11-07 00:00:44,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2020-11-07 00:00:44,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 799 transitions. [2020-11-07 00:00:44,402 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 799 transitions. Word has length 178 [2020-11-07 00:00:44,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:00:44,403 INFO L481 AbstractCegarLoop]: Abstraction has 693 states and 799 transitions. [2020-11-07 00:00:44,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:00:44,403 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 799 transitions. [2020-11-07 00:00:44,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-07 00:00:44,408 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:00:44,408 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 00:00:44,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:00:44,409 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 00:00:44,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:00:44,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1247772573, now seen corresponding path program 1 times [2020-11-07 00:00:44,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:00:44,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1852763332] [2020-11-07 00:00:44,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:00:44,413 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:00:44,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:00:44,501 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:00:44,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:00:44,613 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:00:44,876 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:00:44,877 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:00:44,879 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:00:44,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:00:44 BoogieIcfgContainer [2020-11-07 00:00:44,918 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:00:44,920 INFO L168 Benchmark]: Toolchain (without parser) took 23662.63 ms. Allocated memory was 152.0 MB in the beginning and 457.2 MB in the end (delta: 305.1 MB). Free memory was 128.4 MB in the beginning and 408.7 MB in the end (delta: -280.3 MB). Peak memory consumption was 229.2 MB. Max. memory is 8.0 GB. [2020-11-07 00:00:44,922 INFO L168 Benchmark]: CDTParser took 3.37 ms. Allocated memory is still 125.8 MB. Free memory is still 100.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:00:44,924 INFO L168 Benchmark]: CACSL2BoogieTranslator took 635.82 ms. Allocated memory is still 152.0 MB. Free memory was 127.8 MB in the beginning and 107.3 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:00:44,931 INFO L168 Benchmark]: Boogie Preprocessor took 190.54 ms. Allocated memory is still 152.0 MB. Free memory was 107.1 MB in the beginning and 134.7 MB in the end (delta: -27.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-11-07 00:00:44,932 INFO L168 Benchmark]: RCFGBuilder took 1580.29 ms. Allocated memory is still 152.0 MB. Free memory was 134.7 MB in the beginning and 129.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 8.0 GB. [2020-11-07 00:00:44,933 INFO L168 Benchmark]: TraceAbstraction took 21241.90 ms. Allocated memory was 152.0 MB in the beginning and 457.2 MB in the end (delta: 305.1 MB). Free memory was 129.0 MB in the beginning and 408.7 MB in the end (delta: -279.7 MB). Peak memory consumption was 228.9 MB. Max. memory is 8.0 GB. [2020-11-07 00:00:44,943 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.37 ms. Allocated memory is still 125.8 MB. Free memory is still 100.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 635.82 ms. Allocated memory is still 152.0 MB. Free memory was 127.8 MB in the beginning and 107.3 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 190.54 ms. Allocated memory is still 152.0 MB. Free memory was 107.1 MB in the beginning and 134.7 MB in the end (delta: -27.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1580.29 ms. Allocated memory is still 152.0 MB. Free memory was 134.7 MB in the beginning and 129.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 21241.90 ms. Allocated memory was 152.0 MB in the beginning and 457.2 MB in the end (delta: 305.1 MB). Free memory was 129.0 MB in the beginning and 408.7 MB in the end (delta: -279.7 MB). Peak memory consumption was 228.9 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: [L249] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L450] int waterLevel = 1; [L451] int methaneLevelCritical = 0; [L615] int pumpRunning = 0; [L616] int systemActive = 1; [L809] int cleanupTimeShifts = 4; [L882] int retValue_acc ; [L883] int tmp ; [L887] FCALL select_helpers() [L888] FCALL select_features() [L889] CALL, EXPR valid_product() [L800] int retValue_acc ; [L803] retValue_acc = 1 [L804] return (retValue_acc); [L889] RET, EXPR valid_product() [L889] tmp = valid_product() [L891] COND TRUE \read(tmp) [L893] FCALL setup() [L894] CALL runTest() [L876] CALL test() [L544] int splverifierCounter ; [L545] int tmp ; [L546] int tmp___0 ; [L547] int tmp___1 ; [L548] int tmp___2 ; [L551] splverifierCounter = 0 [L553] COND TRUE 1 [L555] COND TRUE splverifierCounter < 4 [L561] tmp = __VERIFIER_nondet_int() [L563] COND TRUE \read(tmp) [L565] CALL waterRise() [L468] COND TRUE waterLevel < 2 [L469] waterLevel = waterLevel + 1 [L565] RET waterRise() [L571] tmp___0 = __VERIFIER_nondet_int() [L573] COND FALSE !(\read(tmp___0)) [L581] tmp___2 = __VERIFIER_nondet_int() [L583] COND FALSE !(\read(tmp___2)) [L589] tmp___1 = __VERIFIER_nondet_int() [L591] COND TRUE \read(tmp___1) [L593] CALL stopSystem() [L751] COND FALSE !(\read(pumpRunning)) [L758] systemActive = 0 [L593] RET stopSystem() [L600] CALL timeShift() [L622] COND FALSE !(\read(pumpRunning)) [L629] COND FALSE !(\read(systemActive)) [L637] CALL __utac_acc__Specification3_spec__1() [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L53] CALL, EXPR isMethaneLevelCritical() [L489] int retValue_acc ; [L492] retValue_acc = methaneLevelCritical [L493] return (retValue_acc); [L53] RET, EXPR isMethaneLevelCritical() [L53] tmp = isMethaneLevelCritical() [L55] COND FALSE !(\read(tmp)) [L59] CALL, EXPR getWaterLevel() [L521] int retValue_acc ; [L524] retValue_acc = waterLevel [L525] return (retValue_acc); [L59] RET, EXPR getWaterLevel() [L59] tmp___0 = getWaterLevel() [L61] COND TRUE tmp___0 == 2 [L63] CALL, EXPR isPumpRunning() [L703] int retValue_acc ; [L706] retValue_acc = pumpRunning [L707] return (retValue_acc); [L63] RET, EXPR isPumpRunning() [L63] tmp___1 = isPumpRunning() [L65] COND FALSE !(\read(tmp___1)) [L69] CALL __automaton_fail() [L534] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product08.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 613 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 21.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 16.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 934 SDtfs, 1313 SDslu, 1462 SDs, 0 SdLazy, 2781 SolverSat, 489 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 7.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=693occurred 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, 4 MinimizatonAttempts, 269 StatesRemovedByMinimization, 4 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...