/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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_product10.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:32:30,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:32:30,098 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:32:30,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:32:30,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:32:30,119 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:32:30,121 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:32:30,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:32:30,134 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:32:30,137 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:32:30,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:32:30,141 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:32:30,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:32:30,143 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:32:30,145 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:32:30,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:32:30,148 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:32:30,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:32:30,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:32:30,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:32:30,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:32:30,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:32:30,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:32:30,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:32:30,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:32:30,167 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:32:30,168 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:32:30,170 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:32:30,171 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:32:30,173 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:32:30,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:32:30,174 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:32:30,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:32:30,176 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:32:30,177 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:32:30,178 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:32:30,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:32:30,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:32:30,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:32:30,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:32:30,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:32:30,182 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 12:32:30,211 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:32:30,211 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:32:30,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:32:30,214 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:32:30,214 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:32:30,214 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:32:30,214 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:32:30,215 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:32:30,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:32:30,215 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:32:30,215 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:32:30,215 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:32:30,216 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:32:30,216 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:32:30,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:32:30,222 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:32:30,222 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:32:30,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:32:30,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:32:30,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:32:30,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:32:30,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:32:30,223 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:32:30,528 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:32:30,543 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:32:30,547 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:32:30,548 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:32:30,549 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:32:30,549 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c [2020-07-07 12:32:30,622 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/829bf2338/b0c5570c622d4991adb08515ea488b96/FLAG61983e407 [2020-07-07 12:32:31,104 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:32:31,105 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c [2020-07-07 12:32:31,122 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/829bf2338/b0c5570c622d4991adb08515ea488b96/FLAG61983e407 [2020-07-07 12:32:31,433 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/829bf2338/b0c5570c622d4991adb08515ea488b96 [2020-07-07 12:32:31,441 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:32:31,443 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:32:31,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:32:31,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:32:31,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:32:31,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:32:31" (1/1) ... [2020-07-07 12:32:31,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ef26602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:31, skipping insertion in model container [2020-07-07 12:32:31,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:32:31" (1/1) ... [2020-07-07 12:32:31,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:32:31,505 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:32:31,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:32:31,950 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:32:32,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:32:32,098 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:32:32,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:32 WrapperNode [2020-07-07 12:32:32,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:32:32,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:32:32,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:32:32,100 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:32:32,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:32" (1/1) ... [2020-07-07 12:32:32,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:32" (1/1) ... [2020-07-07 12:32:32,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:32" (1/1) ... [2020-07-07 12:32:32,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:32" (1/1) ... [2020-07-07 12:32:32,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:32" (1/1) ... [2020-07-07 12:32:32,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:32" (1/1) ... [2020-07-07 12:32:32,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:32" (1/1) ... [2020-07-07 12:32:32,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:32:32,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:32:32,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:32:32,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:32:32,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:32" (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 [2020-07-07 12:32:32,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:32:32,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:32:32,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:32:32,253 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:32:32,253 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:32:32,253 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:32:32,254 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:32:32,254 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:32:32,254 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:32:32,254 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:32:32,254 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:32:32,254 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:32:32,255 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:32:32,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:32:32,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:32:32,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:32:32,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:32:32,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:32:32,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:32:32,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:32:32,256 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:32:32,256 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:32:32,256 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:32:32,256 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-07-07 12:32:32,257 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:32:32,257 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:32:32,257 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:32:32,257 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:32:32,257 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:32:32,257 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-07 12:32:32,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:32:32,258 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:32:32,258 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:32:32,258 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:32:32,258 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:32:32,259 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:32:32,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:32:32,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:32:32,259 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:32:32,259 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:32:32,259 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:32:32,259 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:32:32,260 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:32:32,260 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:32:32,260 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:32:32,260 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:32:32,260 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:32:32,260 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:32:32,261 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:32:32,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:32:32,261 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:32:32,261 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:32:32,261 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:32:32,261 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:32:32,261 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:32:32,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:32:32,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:32:32,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:32:32,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:32:32,262 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:32:32,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:32:32,262 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:32:32,263 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:32:32,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:32:32,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:32:32,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:32:32,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:32:32,263 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-07 12:32:32,263 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:32:32,264 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:32:32,264 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:32:32,264 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:32:32,264 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:32:32,264 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:32:32,264 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:32:32,264 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:32:32,265 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:32:32,265 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-07-07 12:32:32,265 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:32:32,265 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:32:32,265 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:32:32,265 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:32:32,265 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:32:32,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:32:32,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:32:32,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:32:33,293 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:32:33,293 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:32:33,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:32:33 BoogieIcfgContainer [2020-07-07 12:32:33,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:32:33,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:32:33,301 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:32:33,304 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:32:33,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:32:31" (1/3) ... [2020-07-07 12:32:33,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24a155d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:32:33, skipping insertion in model container [2020-07-07 12:32:33,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:32" (2/3) ... [2020-07-07 12:32:33,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24a155d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:32:33, skipping insertion in model container [2020-07-07 12:32:33,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:32:33" (3/3) ... [2020-07-07 12:32:33,307 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product10.cil.c [2020-07-07 12:32:33,317 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:32:33,326 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:32:33,340 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:32:33,362 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:32:33,362 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:32:33,362 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:32:33,362 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:32:33,363 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:32:33,363 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:32:33,363 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:32:33,363 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:32:33,384 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states. [2020-07-07 12:32:33,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-07 12:32:33,404 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:32:33,405 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] [2020-07-07 12:32:33,406 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:32:33,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:32:33,413 INFO L82 PathProgramCache]: Analyzing trace with hash -350196146, now seen corresponding path program 1 times [2020-07-07 12:32:33,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:32:33,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1814201079] [2020-07-07 12:32:33,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:32:33,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:34,073 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:32:34,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:34,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:34,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:34,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:34,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:34,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:34,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:34,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:34,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:32:34,280 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:32:34,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1814201079] [2020-07-07 12:32:34,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:32:34,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 12:32:34,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339902170] [2020-07-07 12:32:34,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 12:32:34,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:32:34,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 12:32:34,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:32:34,312 INFO L87 Difference]: Start difference. First operand 272 states. Second operand 3 states. [2020-07-07 12:32:35,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:32:35,456 INFO L93 Difference]: Finished difference Result 374 states and 448 transitions. [2020-07-07 12:32:35,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 12:32:35,459 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-07 12:32:35,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:32:35,490 INFO L225 Difference]: With dead ends: 374 [2020-07-07 12:32:35,490 INFO L226 Difference]: Without dead ends: 243 [2020-07-07 12:32:35,497 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:32:35,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-07-07 12:32:35,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 205. [2020-07-07 12:32:35,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-07-07 12:32:35,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 219 transitions. [2020-07-07 12:32:35,622 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 219 transitions. Word has length 153 [2020-07-07 12:32:35,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:32:35,623 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 219 transitions. [2020-07-07 12:32:35,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 12:32:35,623 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 219 transitions. [2020-07-07 12:32:35,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-07 12:32:35,628 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:32:35,628 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] [2020-07-07 12:32:35,628 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:32:35,629 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:32:35,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:32:35,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1301465933, now seen corresponding path program 1 times [2020-07-07 12:32:35,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:32:35,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [924046447] [2020-07-07 12:32:35,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:32:35,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:35,963 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:32:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:36,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:36,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:36,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:36,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:36,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:36,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:32:36,118 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:32:36,118 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [924046447] [2020-07-07 12:32:36,118 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:32:36,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:32:36,119 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051912521] [2020-07-07 12:32:36,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:32:36,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:32:36,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:32:36,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:32:36,124 INFO L87 Difference]: Start difference. First operand 205 states and 219 transitions. Second operand 4 states. [2020-07-07 12:32:36,761 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:32:37,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:32:37,396 INFO L93 Difference]: Finished difference Result 287 states and 319 transitions. [2020-07-07 12:32:37,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 12:32:37,397 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-07-07 12:32:37,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:32:37,401 INFO L225 Difference]: With dead ends: 287 [2020-07-07 12:32:37,402 INFO L226 Difference]: Without dead ends: 226 [2020-07-07 12:32:37,404 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 12:32:37,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-07-07 12:32:37,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 195. [2020-07-07 12:32:37,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-07-07 12:32:37,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 206 transitions. [2020-07-07 12:32:37,461 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 206 transitions. Word has length 154 [2020-07-07 12:32:37,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:32:37,462 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 206 transitions. [2020-07-07 12:32:37,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:32:37,462 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 206 transitions. [2020-07-07 12:32:37,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-07-07 12:32:37,465 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:32:37,465 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] [2020-07-07 12:32:37,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:32:37,465 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:32:37,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:32:37,466 INFO L82 PathProgramCache]: Analyzing trace with hash 351008882, now seen corresponding path program 1 times [2020-07-07 12:32:37,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:32:37,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1561296563] [2020-07-07 12:32:37,467 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:32:37,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:37,798 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:32:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:37,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:37,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:37,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:37,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:37,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:37,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:37,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:32:37,921 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:32:37,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1561296563] [2020-07-07 12:32:37,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:32:37,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 12:32:37,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988070944] [2020-07-07 12:32:37,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 12:32:37,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:32:37,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 12:32:37,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-07 12:32:37,923 INFO L87 Difference]: Start difference. First operand 195 states and 206 transitions. Second operand 10 states. [2020-07-07 12:32:38,506 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:32:38,870 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:32:39,090 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-07 12:32:39,338 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:32:39,617 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:32:39,855 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:32:40,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:32:40,982 INFO L93 Difference]: Finished difference Result 333 states and 381 transitions. [2020-07-07 12:32:40,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 12:32:40,982 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-07-07 12:32:40,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:32:40,986 INFO L225 Difference]: With dead ends: 333 [2020-07-07 12:32:40,986 INFO L226 Difference]: Without dead ends: 248 [2020-07-07 12:32:40,992 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-07-07 12:32:40,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-07-07 12:32:41,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 195. [2020-07-07 12:32:41,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-07-07 12:32:41,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 205 transitions. [2020-07-07 12:32:41,044 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 205 transitions. Word has length 167 [2020-07-07 12:32:41,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:32:41,045 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 205 transitions. [2020-07-07 12:32:41,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 12:32:41,045 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 205 transitions. [2020-07-07 12:32:41,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-07-07 12:32:41,047 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:32:41,048 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] [2020-07-07 12:32:41,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:32:41,048 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:32:41,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:32:41,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1432689870, now seen corresponding path program 1 times [2020-07-07 12:32:41,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:32:41,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1812161075] [2020-07-07 12:32:41,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:32:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:41,408 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:32:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:41,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:41,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:41,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:41,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:41,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:41,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:32:41,583 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:32:41,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1812161075] [2020-07-07 12:32:41,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:32:41,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:32:41,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497470893] [2020-07-07 12:32:41,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:32:41,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:32:41,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:32:41,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:32:41,587 INFO L87 Difference]: Start difference. First operand 195 states and 205 transitions. Second operand 9 states. [2020-07-07 12:32:42,306 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:32:43,628 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:32:43,892 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:32:44,163 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:32:44,421 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:32:44,669 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:32:44,967 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:32:45,239 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:32:45,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:32:45,629 INFO L93 Difference]: Finished difference Result 425 states and 496 transitions. [2020-07-07 12:32:45,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 12:32:45,630 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 170 [2020-07-07 12:32:45,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:32:45,634 INFO L225 Difference]: With dead ends: 425 [2020-07-07 12:32:45,634 INFO L226 Difference]: Without dead ends: 340 [2020-07-07 12:32:45,636 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-07-07 12:32:45,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-07-07 12:32:45,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 270. [2020-07-07 12:32:45,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-07-07 12:32:45,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 292 transitions. [2020-07-07 12:32:45,726 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 292 transitions. Word has length 170 [2020-07-07 12:32:45,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:32:45,726 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 292 transitions. [2020-07-07 12:32:45,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:32:45,727 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 292 transitions. [2020-07-07 12:32:45,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-07-07 12:32:45,730 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:32:45,730 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] [2020-07-07 12:32:45,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:32:45,730 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:32:45,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:32:45,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1340891089, now seen corresponding path program 1 times [2020-07-07 12:32:45,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:32:45,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [373845738] [2020-07-07 12:32:45,732 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:32:45,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:32:45,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:32:45,999 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:32:45,999 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:32:45,999 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:32:46,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:32:46,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:32:46 BoogieIcfgContainer [2020-07-07 12:32:46,023 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:32:46,025 INFO L168 Benchmark]: Toolchain (without parser) took 14582.22 ms. Allocated memory was 140.0 MB in the beginning and 472.9 MB in the end (delta: 332.9 MB). Free memory was 104.0 MB in the beginning and 177.2 MB in the end (delta: -73.2 MB). Peak memory consumption was 259.7 MB. Max. memory is 7.1 GB. [2020-07-07 12:32:46,025 INFO L168 Benchmark]: CDTParser took 0.92 ms. Allocated memory is still 140.0 MB. Free memory is still 123.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-07 12:32:46,026 INFO L168 Benchmark]: CACSL2BoogieTranslator took 655.91 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 104.0 MB in the beginning and 175.7 MB in the end (delta: -71.7 MB). Peak memory consumption was 29.5 MB. Max. memory is 7.1 GB. [2020-07-07 12:32:46,027 INFO L168 Benchmark]: Boogie Preprocessor took 83.08 ms. Allocated memory is still 205.0 MB. Free memory was 175.7 MB in the beginning and 171.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-07-07 12:32:46,028 INFO L168 Benchmark]: RCFGBuilder took 1116.39 ms. Allocated memory was 205.0 MB in the beginning and 236.5 MB in the end (delta: 31.5 MB). Free memory was 171.7 MB in the beginning and 181.8 MB in the end (delta: -10.1 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. [2020-07-07 12:32:46,029 INFO L168 Benchmark]: TraceAbstraction took 12722.43 ms. Allocated memory was 236.5 MB in the beginning and 472.9 MB in the end (delta: 236.5 MB). Free memory was 181.8 MB in the beginning and 177.2 MB in the end (delta: 4.6 MB). Peak memory consumption was 241.1 MB. Max. memory is 7.1 GB. [2020-07-07 12:32:46,032 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.92 ms. Allocated memory is still 140.0 MB. Free memory is still 123.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 655.91 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 104.0 MB in the beginning and 175.7 MB in the end (delta: -71.7 MB). Peak memory consumption was 29.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 83.08 ms. Allocated memory is still 205.0 MB. Free memory was 175.7 MB in the beginning and 171.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1116.39 ms. Allocated memory was 205.0 MB in the beginning and 236.5 MB in the end (delta: 31.5 MB). Free memory was 171.7 MB in the beginning and 181.8 MB in the end (delta: -10.1 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12722.43 ms. Allocated memory was 236.5 MB in the beginning and 472.9 MB in the end (delta: 236.5 MB). Free memory was 181.8 MB in the beginning and 177.2 MB in the end (delta: 4.6 MB). Peak memory consumption was 241.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 168]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L84] int waterLevel = 1; [L85] int methaneLevelCritical = 0; [L342] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L613] int pumpRunning = 0; [L614] int systemActive = 1; [L781] int cleanupTimeShifts = 4; [L854] int retValue_acc ; [L855] int tmp ; [L859] FCALL select_helpers() [L860] FCALL select_features() [L861] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L861] RET, EXPR valid_product() [L861] tmp = valid_product() [L863] COND TRUE \read(tmp) [L865] FCALL setup() [L866] CALL runTest() [L848] CALL test() [L543] int splverifierCounter ; [L544] int tmp ; [L545] int tmp___0 ; [L546] int tmp___1 ; [L547] int tmp___2 ; [L550] splverifierCounter = 0 [L552] COND TRUE 1 [L554] COND TRUE splverifierCounter < 4 [L560] tmp = __VERIFIER_nondet_int() [L562] COND TRUE \read(tmp) [L564] CALL waterRise() [L102] COND TRUE waterLevel < 2 [L103] waterLevel = waterLevel + 1 [L564] RET waterRise() [L570] tmp___0 = __VERIFIER_nondet_int() [L572] COND FALSE !(\read(tmp___0)) [L580] tmp___2 = __VERIFIER_nondet_int() [L582] COND TRUE \read(tmp___2) [L584] CALL startSystem() [L742] systemActive = 1 [L584] RET startSystem() [L597] CALL timeShift() [L621] COND FALSE !(\read(pumpRunning)) [L628] COND TRUE \read(systemActive) [L630] FCALL processEnvironment() [L636] CALL __utac_acc__Specification3_spec__1() [L748] int tmp ; [L749] int tmp___0 ; [L750] int tmp___1 ; [L754] CALL, EXPR isMethaneLevelCritical() [L123] int retValue_acc ; [L126] retValue_acc = methaneLevelCritical [L127] return (retValue_acc); [L754] RET, EXPR isMethaneLevelCritical() [L754] tmp = isMethaneLevelCritical() [L756] COND FALSE !(\read(tmp)) [L760] CALL, EXPR getWaterLevel() [L155] int retValue_acc ; [L158] retValue_acc = waterLevel [L159] return (retValue_acc); [L760] RET, EXPR getWaterLevel() [L760] tmp___0 = getWaterLevel() [L762] COND TRUE tmp___0 == 2 [L764] CALL, EXPR isPumpRunning() [L694] int retValue_acc ; [L697] retValue_acc = pumpRunning [L698] return (retValue_acc); [L764] RET, EXPR isPumpRunning() [L764] tmp___1 = isPumpRunning() [L766] COND FALSE !(\read(tmp___1)) [L770] CALL __automaton_fail() [L168] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 591 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 756 SDtfs, 987 SDslu, 1148 SDs, 0 SdLazy, 1866 SolverSat, 303 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=272occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 192 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...