/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_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 15:23:41,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 15:23:41,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 15:23:41,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 15:23:41,214 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 15:23:41,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 15:23:41,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 15:23:41,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 15:23:41,231 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 15:23:41,231 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 15:23:41,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 15:23:41,235 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 15:23:41,236 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 15:23:41,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 15:23:41,238 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 15:23:41,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 15:23:41,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 15:23:41,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 15:23:41,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 15:23:41,255 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 15:23:41,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 15:23:41,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 15:23:41,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 15:23:41,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 15:23:41,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 15:23:41,264 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 15:23:41,264 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 15:23:41,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 15:23:41,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 15:23:41,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 15:23:41,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 15:23:41,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 15:23:41,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 15:23:41,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 15:23:41,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 15:23:41,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 15:23:41,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 15:23:41,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 15:23:41,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 15:23:41,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 15:23:41,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 15:23:41,274 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 15:23:41,284 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 15:23:41,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 15:23:41,286 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 15:23:41,286 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 15:23:41,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 15:23:41,286 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 15:23:41,287 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 15:23:41,287 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 15:23:41,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 15:23:41,287 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 15:23:41,287 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 15:23:41,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 15:23:41,288 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 15:23:41,288 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 15:23:41,288 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 15:23:41,289 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 15:23:41,289 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 15:23:41,289 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 15:23:41,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 15:23:41,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 15:23:41,290 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 15:23:41,290 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 15:23:41,290 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 15:23:41,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 15:23:41,712 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 15:23:41,715 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 15:23:41,716 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 15:23:41,717 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 15:23:41,718 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product27.cil.c [2020-09-04 15:23:41,806 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/60f22805f/efcfbaf3f0ce4c158cb8f13e8d81dfff/FLAG8cc4adfa0 [2020-09-04 15:23:42,429 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 15:23:42,430 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product27.cil.c [2020-09-04 15:23:42,443 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/60f22805f/efcfbaf3f0ce4c158cb8f13e8d81dfff/FLAG8cc4adfa0 [2020-09-04 15:23:42,689 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/60f22805f/efcfbaf3f0ce4c158cb8f13e8d81dfff [2020-09-04 15:23:42,701 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 15:23:42,704 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 15:23:42,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 15:23:42,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 15:23:42,709 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 15:23:42,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 03:23:42" (1/1) ... [2020-09-04 15:23:42,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:23:42, skipping insertion in model container [2020-09-04 15:23:42,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 03:23:42" (1/1) ... [2020-09-04 15:23:42,720 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 15:23:42,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 15:23:43,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 15:23:43,278 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 15:23:43,390 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 15:23:43,427 INFO L208 MainTranslator]: Completed translation [2020-09-04 15:23:43,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:23:43 WrapperNode [2020-09-04 15:23:43,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 15:23:43,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 15:23:43,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 15:23:43,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 15:23:43,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:23:43" (1/1) ... [2020-09-04 15:23:43,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:23:43" (1/1) ... [2020-09-04 15:23:43,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:23:43" (1/1) ... [2020-09-04 15:23:43,465 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:23:43" (1/1) ... [2020-09-04 15:23:43,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:23:43" (1/1) ... [2020-09-04 15:23:43,520 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:23:43" (1/1) ... [2020-09-04 15:23:43,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:23:43" (1/1) ... [2020-09-04 15:23:43,533 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 15:23:43,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 15:23:43,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 15:23:43,534 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 15:23:43,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:23:43" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 15:23:43,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 15:23:43,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 15:23:43,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 15:23:43,609 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 15:23:43,610 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 15:23:43,610 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-04 15:23:43,610 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 15:23:43,610 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-04 15:23:43,610 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 15:23:43,610 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 15:23:43,611 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 15:23:43,611 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 15:23:43,611 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 15:23:43,611 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-04 15:23:43,611 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-04 15:23:43,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-04 15:23:43,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 15:23:43,612 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 15:23:43,612 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 15:23:43,613 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 15:23:43,613 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 15:23:43,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 15:23:43,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 15:23:43,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 15:23:43,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 15:23:43,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 15:23:43,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 15:23:43,616 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 15:23:43,616 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 15:23:43,616 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 15:23:43,616 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 15:23:43,616 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 15:23:43,616 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 15:23:43,617 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-04 15:23:43,617 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 15:23:43,617 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 15:23:43,618 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 15:23:43,618 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 15:23:43,618 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 15:23:43,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 15:23:43,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 15:23:43,618 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 15:23:43,619 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 15:23:43,619 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 15:23:43,619 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-04 15:23:43,619 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 15:23:43,619 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 15:23:43,619 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 15:23:43,620 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 15:23:43,620 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 15:23:43,620 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 15:23:43,620 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-04 15:23:43,621 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 15:23:43,621 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 15:23:43,621 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 15:23:43,621 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 15:23:43,621 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-04 15:23:43,621 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 15:23:43,622 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-04 15:23:43,622 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-04 15:23:43,622 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-04 15:23:43,622 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 15:23:43,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 15:23:43,622 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 15:23:43,624 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 15:23:43,624 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 15:23:43,624 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 15:23:43,625 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 15:23:43,625 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 15:23:43,625 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 15:23:43,625 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 15:23:43,625 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 15:23:43,625 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 15:23:43,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 15:23:43,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 15:23:43,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 15:23:43,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 15:23:43,626 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 15:23:43,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 15:23:43,627 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 15:23:43,627 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 15:23:43,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 15:23:43,628 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 15:23:43,628 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 15:23:43,628 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 15:23:43,628 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 15:23:43,629 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 15:23:43,630 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 15:23:43,630 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 15:23:43,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 15:23:43,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 15:23:43,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 15:23:44,751 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 15:23:44,751 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 15:23:44,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 03:23:44 BoogieIcfgContainer [2020-09-04 15:23:44,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 15:23:44,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 15:23:44,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 15:23:44,764 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 15:23:44,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 03:23:42" (1/3) ... [2020-09-04 15:23:44,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f7bd0a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 03:23:44, skipping insertion in model container [2020-09-04 15:23:44,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:23:43" (2/3) ... [2020-09-04 15:23:44,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f7bd0a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 03:23:44, skipping insertion in model container [2020-09-04 15:23:44,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 03:23:44" (3/3) ... [2020-09-04 15:23:44,768 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product27.cil.c [2020-09-04 15:23:44,780 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 15:23:44,792 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 15:23:44,814 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 15:23:44,843 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 15:23:44,844 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 15:23:44,844 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 15:23:44,844 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 15:23:44,844 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 15:23:44,844 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 15:23:44,845 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 15:23:44,845 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 15:23:44,868 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states. [2020-09-04 15:23:44,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-04 15:23:44,893 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:23:44,895 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 15:23:44,895 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:23:44,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:23:44,904 INFO L82 PathProgramCache]: Analyzing trace with hash 196536289, now seen corresponding path program 1 times [2020-09-04 15:23:44,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:23:44,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1611539087] [2020-09-04 15:23:44,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:23:45,002 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:23:45,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:45,748 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:23:45,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:23:45,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:45,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:23:45,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:45,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:23:45,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:45,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:23:45,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:45,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:23:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:45,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 15:23:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:45,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 15:23:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:45,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 15:23:45,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:45,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:23:46,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1611539087] [2020-09-04 15:23:46,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:23:46,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 15:23:46,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817422734] [2020-09-04 15:23:46,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 15:23:46,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:23:46,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 15:23:46,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 15:23:46,041 INFO L87 Difference]: Start difference. First operand 308 states. Second operand 3 states. [2020-09-04 15:23:47,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:23:47,348 INFO L93 Difference]: Finished difference Result 449 states and 536 transitions. [2020-09-04 15:23:47,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 15:23:47,351 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-04 15:23:47,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:23:47,385 INFO L225 Difference]: With dead ends: 449 [2020-09-04 15:23:47,386 INFO L226 Difference]: Without dead ends: 282 [2020-09-04 15:23:47,391 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 15:23:47,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-04 15:23:47,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 241. [2020-09-04 15:23:47,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-09-04 15:23:47,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 261 transitions. [2020-09-04 15:23:47,528 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 261 transitions. Word has length 153 [2020-09-04 15:23:47,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:23:47,529 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 261 transitions. [2020-09-04 15:23:47,530 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 15:23:47,530 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 261 transitions. [2020-09-04 15:23:47,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-04 15:23:47,534 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:23:47,535 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] [2020-09-04 15:23:47,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 15:23:47,535 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:23:47,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:23:47,536 INFO L82 PathProgramCache]: Analyzing trace with hash 738994654, now seen corresponding path program 1 times [2020-09-04 15:23:47,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:23:47,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [689426081] [2020-09-04 15:23:47,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:23:47,540 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:23:47,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:48,024 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:23:48,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:23:48,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:48,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:23:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:48,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:23:48,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:48,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:23:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:48,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:23:48,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:48,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-04 15:23:48,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:48,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 15:23:48,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:48,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-04 15:23:48,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:48,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:23:48,111 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [689426081] [2020-09-04 15:23:48,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:23:48,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 15:23:48,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620037490] [2020-09-04 15:23:48,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 15:23:48,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:23:48,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 15:23:48,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 15:23:48,115 INFO L87 Difference]: Start difference. First operand 241 states and 261 transitions. Second operand 4 states. [2020-09-04 15:23:48,702 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:23:49,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:23:49,562 INFO L93 Difference]: Finished difference Result 360 states and 403 transitions. [2020-09-04 15:23:49,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 15:23:49,563 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-04 15:23:49,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:23:49,570 INFO L225 Difference]: With dead ends: 360 [2020-09-04 15:23:49,570 INFO L226 Difference]: Without dead ends: 265 [2020-09-04 15:23:49,574 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 15:23:49,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-04 15:23:49,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 231. [2020-09-04 15:23:49,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-09-04 15:23:49,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 248 transitions. [2020-09-04 15:23:49,691 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 248 transitions. Word has length 154 [2020-09-04 15:23:49,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:23:49,692 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 248 transitions. [2020-09-04 15:23:49,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 15:23:49,692 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 248 transitions. [2020-09-04 15:23:49,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-04 15:23:49,695 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:23:49,695 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] [2020-09-04 15:23:49,695 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 15:23:49,696 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:23:49,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:23:49,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1017850899, now seen corresponding path program 1 times [2020-09-04 15:23:49,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:23:49,697 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1780057447] [2020-09-04 15:23:49,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:23:49,699 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:23:49,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:50,087 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:23:50,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:23:50,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:50,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:23:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:50,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:23:50,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:50,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:23:50,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:50,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:23:50,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:50,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 15:23:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:50,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 15:23:50,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:50,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-04 15:23:50,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:50,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:23:50,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1780057447] [2020-09-04 15:23:50,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:23:50,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 15:23:50,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721016162] [2020-09-04 15:23:50,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 15:23:50,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:23:50,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 15:23:50,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 15:23:50,272 INFO L87 Difference]: Start difference. First operand 231 states and 248 transitions. Second operand 9 states. [2020-09-04 15:23:50,809 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:23:51,197 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:23:51,507 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 15:23:51,829 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:23:52,146 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:23:52,437 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:23:53,480 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:23:55,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:23:55,354 INFO L93 Difference]: Finished difference Result 611 states and 701 transitions. [2020-09-04 15:23:55,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 15:23:55,355 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-09-04 15:23:55,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:23:55,361 INFO L225 Difference]: With dead ends: 611 [2020-09-04 15:23:55,361 INFO L226 Difference]: Without dead ends: 490 [2020-09-04 15:23:55,363 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-09-04 15:23:55,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2020-09-04 15:23:55,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 427. [2020-09-04 15:23:55,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-09-04 15:23:55,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 476 transitions. [2020-09-04 15:23:55,504 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 476 transitions. Word has length 163 [2020-09-04 15:23:55,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:23:55,505 INFO L479 AbstractCegarLoop]: Abstraction has 427 states and 476 transitions. [2020-09-04 15:23:55,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 15:23:55,505 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 476 transitions. [2020-09-04 15:23:55,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-04 15:23:55,508 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:23:55,508 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] [2020-09-04 15:23:55,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 15:23:55,509 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:23:55,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:23:55,509 INFO L82 PathProgramCache]: Analyzing trace with hash -2094008110, now seen corresponding path program 1 times [2020-09-04 15:23:55,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:23:55,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [999323793] [2020-09-04 15:23:55,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:23:55,512 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:23:55,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:55,928 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:23:55,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:23:55,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:56,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:23:56,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:56,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:23:56,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:56,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:23:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:56,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:23:56,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:56,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-04 15:23:56,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:56,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:23:56,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:56,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-04 15:23:56,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:56,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-04 15:23:56,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:56,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-04 15:23:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:56,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:23:56,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [999323793] [2020-09-04 15:23:56,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:23:56,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 15:23:56,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77994576] [2020-09-04 15:23:56,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 15:23:56,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:23:56,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 15:23:56,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 15:23:56,243 INFO L87 Difference]: Start difference. First operand 427 states and 476 transitions. Second operand 9 states. [2020-09-04 15:23:56,911 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:23:58,742 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:23:59,070 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:23:59,426 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:23:59,765 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:24:00,060 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:24:00,403 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:24:00,697 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:24:01,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:24:01,423 INFO L93 Difference]: Finished difference Result 1228 states and 1519 transitions. [2020-09-04 15:24:01,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-04 15:24:01,429 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 171 [2020-09-04 15:24:01,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:24:01,443 INFO L225 Difference]: With dead ends: 1228 [2020-09-04 15:24:01,443 INFO L226 Difference]: Without dead ends: 911 [2020-09-04 15:24:01,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-04 15:24:01,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2020-09-04 15:24:01,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 723. [2020-09-04 15:24:01,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 723 states. [2020-09-04 15:24:01,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 829 transitions. [2020-09-04 15:24:01,727 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 829 transitions. Word has length 171 [2020-09-04 15:24:01,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:24:01,728 INFO L479 AbstractCegarLoop]: Abstraction has 723 states and 829 transitions. [2020-09-04 15:24:01,728 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 15:24:01,728 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 829 transitions. [2020-09-04 15:24:01,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-04 15:24:01,732 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:24:01,732 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] [2020-09-04 15:24:01,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 15:24:01,732 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:24:01,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:24:01,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1541185143, now seen corresponding path program 1 times [2020-09-04 15:24:01,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:24:01,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1783000493] [2020-09-04 15:24:01,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:24:01,736 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:24:01,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 15:24:01,811 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 15:24:01,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 15:24:01,886 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 15:24:02,059 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 15:24:02,059 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 15:24:02,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 15:24:02,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 03:24:02 BoogieIcfgContainer [2020-09-04 15:24:02,089 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 15:24:02,092 INFO L168 Benchmark]: Toolchain (without parser) took 19388.46 ms. Allocated memory was 140.0 MB in the beginning and 579.3 MB in the end (delta: 439.4 MB). Free memory was 103.5 MB in the beginning and 439.2 MB in the end (delta: -335.7 MB). Peak memory consumption was 103.7 MB. Max. memory is 7.1 GB. [2020-09-04 15:24:02,093 INFO L168 Benchmark]: CDTParser took 0.83 ms. Allocated memory is still 140.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 15:24:02,094 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.33 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 103.3 MB in the beginning and 172.8 MB in the end (delta: -69.4 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2020-09-04 15:24:02,095 INFO L168 Benchmark]: Boogie Preprocessor took 104.49 ms. Allocated memory is still 204.5 MB. Free memory was 172.8 MB in the beginning and 168.3 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2020-09-04 15:24:02,095 INFO L168 Benchmark]: RCFGBuilder took 1225.66 ms. Allocated memory was 204.5 MB in the beginning and 235.9 MB in the end (delta: 31.5 MB). Free memory was 168.3 MB in the beginning and 174.2 MB in the end (delta: -5.9 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. [2020-09-04 15:24:02,096 INFO L168 Benchmark]: TraceAbstraction took 17329.07 ms. Allocated memory was 235.9 MB in the beginning and 579.3 MB in the end (delta: 343.4 MB). Free memory was 174.2 MB in the beginning and 439.2 MB in the end (delta: -265.0 MB). Peak memory consumption was 78.4 MB. Max. memory is 7.1 GB. [2020-09-04 15:24:02,100 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83 ms. Allocated memory is still 140.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 723.33 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 103.3 MB in the beginning and 172.8 MB in the end (delta: -69.4 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.49 ms. Allocated memory is still 204.5 MB. Free memory was 172.8 MB in the beginning and 168.3 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1225.66 ms. Allocated memory was 204.5 MB in the beginning and 235.9 MB in the end (delta: 31.5 MB). Free memory was 168.3 MB in the beginning and 174.2 MB in the end (delta: -5.9 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17329.07 ms. Allocated memory was 235.9 MB in the beginning and 579.3 MB in the end (delta: 343.4 MB). Free memory was 174.2 MB in the beginning and 439.2 MB in the end (delta: -265.0 MB). Peak memory consumption was 78.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 346]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L558] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L755] int waterLevel = 1; [L756] int methaneLevelCritical = 0; [L844] int cleanupTimeShifts = 4; [L917] int retValue_acc ; [L918] int tmp ; [L922] FCALL select_helpers() [L923] FCALL select_features() [L924] CALL, EXPR valid_product() [L380] int retValue_acc ; [L383] retValue_acc = 1 [L384] return (retValue_acc); [L924] RET, EXPR valid_product() [L924] tmp = valid_product() [L926] COND TRUE \read(tmp) [L928] FCALL setup() [L929] CALL runTest() [L911] CALL test() [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) [L67] CALL waterRise() [L773] COND TRUE waterLevel < 2 [L774] waterLevel = waterLevel + 1 [L67] RET waterRise() [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L100] CALL timeShift() [L128] COND FALSE !(\read(pumpRunning)) [L135] COND TRUE \read(systemActive) [L137] CALL processEnvironment() [L157] int tmp ; [L160] COND FALSE !(\read(pumpRunning)) [L175] FCALL processEnvironment__wrappee__base() [L137] RET processEnvironment() [L143] CALL __utac_acc__Specification3_spec__1() [L309] int tmp ; [L310] int tmp___0 ; [L311] int tmp___1 ; [L315] CALL, EXPR isMethaneLevelCritical() [L794] int retValue_acc ; [L797] retValue_acc = methaneLevelCritical [L798] return (retValue_acc); [L315] RET, EXPR isMethaneLevelCritical() [L315] tmp = isMethaneLevelCritical() [L317] COND FALSE !(\read(tmp)) [L321] CALL, EXPR getWaterLevel() [L826] int retValue_acc ; [L829] retValue_acc = waterLevel [L830] return (retValue_acc); [L321] RET, EXPR getWaterLevel() [L321] tmp___0 = getWaterLevel() [L323] COND TRUE tmp___0 == 2 [L325] CALL, EXPR isPumpRunning() [L227] int retValue_acc ; [L230] retValue_acc = pumpRunning [L231] return (retValue_acc); [L325] RET, EXPR isPumpRunning() [L325] tmp___1 = isPumpRunning() [L327] COND FALSE !(\read(tmp___1)) [L331] CALL __automaton_fail() [L346] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 624 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 13.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 891 SDtfs, 1254 SDslu, 1214 SDs, 0 SdLazy, 2696 SolverSat, 405 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=723occurred 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: 0.6s AutomataMinimizationTime, 4 MinimizatonAttempts, 326 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...