/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_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 15:25:13,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 15:25:13,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 15:25:13,401 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 15:25:13,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 15:25:13,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 15:25:13,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 15:25:13,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 15:25:13,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 15:25:13,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 15:25:13,424 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 15:25:13,425 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 15:25:13,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 15:25:13,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 15:25:13,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 15:25:13,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 15:25:13,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 15:25:13,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 15:25:13,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 15:25:13,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 15:25:13,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 15:25:13,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 15:25:13,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 15:25:13,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 15:25:13,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 15:25:13,470 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 15:25:13,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 15:25:13,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 15:25:13,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 15:25:13,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 15:25:13,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 15:25:13,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 15:25:13,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 15:25:13,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 15:25:13,484 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 15:25:13,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 15:25:13,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 15:25:13,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 15:25:13,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 15:25:13,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 15:25:13,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 15:25:13,489 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 15:25:13,507 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 15:25:13,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 15:25:13,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 15:25:13,509 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 15:25:13,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 15:25:13,509 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 15:25:13,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 15:25:13,510 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 15:25:13,510 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 15:25:13,510 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 15:25:13,511 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 15:25:13,512 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 15:25:13,512 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 15:25:13,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 15:25:13,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 15:25:13,513 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 15:25:13,513 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 15:25:13,513 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 15:25:13,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 15:25:13,514 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 15:25:13,514 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 15:25:13,514 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 15:25:13,514 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 15:25:13,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 15:25:13,934 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 15:25:13,937 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 15:25:13,939 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 15:25:13,939 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 15:25:13,940 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product52.cil.c [2020-09-04 15:25:14,031 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/493a40621/d5c7ac6664ec409baa90866e182365c8/FLAGe6412ba49 [2020-09-04 15:25:14,649 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 15:25:14,650 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product52.cil.c [2020-09-04 15:25:14,663 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/493a40621/d5c7ac6664ec409baa90866e182365c8/FLAGe6412ba49 [2020-09-04 15:25:14,922 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/493a40621/d5c7ac6664ec409baa90866e182365c8 [2020-09-04 15:25:14,938 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 15:25:14,943 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 15:25:14,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 15:25:14,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 15:25:14,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 15:25:14,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 03:25:14" (1/1) ... [2020-09-04 15:25:14,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c86c800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:14, skipping insertion in model container [2020-09-04 15:25:14,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 03:25:14" (1/1) ... [2020-09-04 15:25:14,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 15:25:15,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 15:25:15,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 15:25:15,608 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 15:25:15,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 15:25:15,744 INFO L208 MainTranslator]: Completed translation [2020-09-04 15:25:15,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:15 WrapperNode [2020-09-04 15:25:15,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 15:25:15,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 15:25:15,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 15:25:15,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 15:25:15,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:15" (1/1) ... [2020-09-04 15:25:15,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:15" (1/1) ... [2020-09-04 15:25:15,783 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:15" (1/1) ... [2020-09-04 15:25:15,784 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:15" (1/1) ... [2020-09-04 15:25:15,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:15" (1/1) ... [2020-09-04 15:25:15,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:15" (1/1) ... [2020-09-04 15:25:15,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:15" (1/1) ... [2020-09-04 15:25:15,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 15:25:15,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 15:25:15,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 15:25:15,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 15:25:15,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:15" (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 15:25:15,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 15:25:15,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 15:25:15,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 15:25:15,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-04 15:25:15,993 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 15:25:15,993 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 15:25:15,993 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 15:25:15,994 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 15:25:15,994 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 15:25:15,994 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 15:25:15,994 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-04 15:25:15,995 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-04 15:25:15,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 15:25:15,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 15:25:15,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 15:25:15,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 15:25:15,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 15:25:15,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 15:25:15,997 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 15:25:15,997 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-04 15:25:15,998 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-04 15:25:15,998 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 15:25:16,000 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 15:25:16,001 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 15:25:16,001 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 15:25:16,001 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 15:25:16,001 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 15:25:16,002 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-04 15:25:16,002 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-04 15:25:16,002 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-04 15:25:16,002 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-04 15:25:16,002 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 15:25:16,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 15:25:16,003 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 15:25:16,003 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 15:25:16,003 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 15:25:16,003 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 15:25:16,003 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 15:25:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 15:25:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 15:25:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 15:25:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 15:25:16,004 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 15:25:16,004 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 15:25:16,005 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 15:25:16,005 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 15:25:16,005 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 15:25:16,005 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 15:25:16,005 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 15:25:16,006 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-04 15:25:16,006 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 15:25:16,006 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 15:25:16,006 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 15:25:16,006 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 15:25:16,006 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-04 15:25:16,007 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-04 15:25:16,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 15:25:16,007 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 15:25:16,007 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 15:25:16,007 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 15:25:16,007 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 15:25:16,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 15:25:16,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 15:25:16,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 15:25:16,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 15:25:16,008 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 15:25:16,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 15:25:16,008 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 15:25:16,008 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 15:25:16,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 15:25:16,009 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 15:25:16,009 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 15:25:16,009 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 15:25:16,009 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 15:25:16,009 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 15:25:16,010 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 15:25:16,010 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 15:25:16,010 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-04 15:25:16,010 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-04 15:25:16,011 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 15:25:16,011 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-04 15:25:16,011 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-04 15:25:16,012 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-04 15:25:16,012 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-04 15:25:16,012 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 15:25:16,012 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 15:25:16,012 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 15:25:16,013 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 15:25:16,014 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 15:25:16,014 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 15:25:16,014 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 15:25:16,014 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 15:25:16,014 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 15:25:16,015 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 15:25:16,015 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 15:25:16,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 15:25:16,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 15:25:16,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 15:25:17,149 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 15:25:17,149 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 15:25:17,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 03:25:17 BoogieIcfgContainer [2020-09-04 15:25:17,157 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 15:25:17,159 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 15:25:17,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 15:25:17,162 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 15:25:17,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 03:25:14" (1/3) ... [2020-09-04 15:25:17,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2093102e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 03:25:17, skipping insertion in model container [2020-09-04 15:25:17,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:25:15" (2/3) ... [2020-09-04 15:25:17,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2093102e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 03:25:17, skipping insertion in model container [2020-09-04 15:25:17,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 03:25:17" (3/3) ... [2020-09-04 15:25:17,167 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product52.cil.c [2020-09-04 15:25:17,179 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 15:25:17,192 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 15:25:17,216 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 15:25:17,247 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 15:25:17,247 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 15:25:17,247 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 15:25:17,247 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 15:25:17,248 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 15:25:17,248 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 15:25:17,248 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 15:25:17,248 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 15:25:17,274 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states. [2020-09-04 15:25:17,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-04 15:25:17,301 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:25:17,302 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 15:25:17,303 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:25:17,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:25:17,312 INFO L82 PathProgramCache]: Analyzing trace with hash 71377499, now seen corresponding path program 1 times [2020-09-04 15:25:17,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:25:17,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [420642212] [2020-09-04 15:25:17,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:25:17,420 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:25:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:18,150 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:25:18,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:25:18,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:18,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:25:18,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:18,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:25:18,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:18,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:25:18,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:18,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:25:18,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:18,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 15:25:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:18,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 15:25:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:18,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 15:25:18,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:18,377 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 15:25:18,380 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [420642212] [2020-09-04 15:25:18,382 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:25:18,382 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 15:25:18,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381869037] [2020-09-04 15:25:18,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 15:25:18,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:25:18,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 15:25:18,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 15:25:18,413 INFO L87 Difference]: Start difference. First operand 339 states. Second operand 3 states. [2020-09-04 15:25:19,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:25:19,922 INFO L93 Difference]: Finished difference Result 534 states and 633 transitions. [2020-09-04 15:25:19,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 15:25:19,925 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-04 15:25:19,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:25:19,946 INFO L225 Difference]: With dead ends: 534 [2020-09-04 15:25:19,946 INFO L226 Difference]: Without dead ends: 326 [2020-09-04 15:25:19,952 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 15:25:19,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-09-04 15:25:20,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 282. [2020-09-04 15:25:20,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-09-04 15:25:20,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 307 transitions. [2020-09-04 15:25:20,104 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 307 transitions. Word has length 153 [2020-09-04 15:25:20,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:25:20,105 INFO L479 AbstractCegarLoop]: Abstraction has 282 states and 307 transitions. [2020-09-04 15:25:20,105 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 15:25:20,106 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 307 transitions. [2020-09-04 15:25:20,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-04 15:25:20,111 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:25:20,112 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 15:25:20,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 15:25:20,112 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:25:20,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:25:20,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1758648365, now seen corresponding path program 1 times [2020-09-04 15:25:20,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:25:20,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [797465989] [2020-09-04 15:25:20,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:25:20,117 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:25:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:20,509 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:25:20,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:25:20,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:20,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:25:20,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:20,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:25:20,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:20,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:25:20,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:20,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:25:20,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:20,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-04 15:25:20,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:20,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 15:25:20,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:20,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-04 15:25:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:20,627 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 15:25:20,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [797465989] [2020-09-04 15:25:20,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:25:20,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 15:25:20,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057271886] [2020-09-04 15:25:20,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 15:25:20,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:25:20,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 15:25:20,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 15:25:20,632 INFO L87 Difference]: Start difference. First operand 282 states and 307 transitions. Second operand 4 states. [2020-09-04 15:25:21,300 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:25:22,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:25:22,466 INFO L93 Difference]: Finished difference Result 441 states and 496 transitions. [2020-09-04 15:25:22,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 15:25:22,467 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-04 15:25:22,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:25:22,472 INFO L225 Difference]: With dead ends: 441 [2020-09-04 15:25:22,472 INFO L226 Difference]: Without dead ends: 309 [2020-09-04 15:25:22,475 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 [2020-09-04 15:25:22,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-09-04 15:25:22,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 272. [2020-09-04 15:25:22,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-09-04 15:25:22,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 294 transitions. [2020-09-04 15:25:22,562 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 294 transitions. Word has length 154 [2020-09-04 15:25:22,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:25:22,563 INFO L479 AbstractCegarLoop]: Abstraction has 272 states and 294 transitions. [2020-09-04 15:25:22,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 15:25:22,563 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 294 transitions. [2020-09-04 15:25:22,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-04 15:25:22,566 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:25:22,566 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] [2020-09-04 15:25:22,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 15:25:22,567 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:25:22,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:25:22,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1306567739, now seen corresponding path program 1 times [2020-09-04 15:25:22,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:25:22,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1607808599] [2020-09-04 15:25:22,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:25:22,570 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:25:22,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:22,963 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:25:22,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:25:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:23,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:25:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:23,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:25:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:23,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:25:23,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:23,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:25:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:23,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-04 15:25:23,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:23,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-04 15:25:23,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:23,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-04 15:25:23,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:23,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-04 15:25:23,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:23,114 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 15:25:23,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1607808599] [2020-09-04 15:25:23,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:25:23,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 15:25:23,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958528061] [2020-09-04 15:25:23,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 15:25:23,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:25:23,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 15:25:23,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-04 15:25:23,118 INFO L87 Difference]: Start difference. First operand 272 states and 294 transitions. Second operand 10 states. [2020-09-04 15:25:23,761 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:25:24,303 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:25:24,672 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-04 15:25:24,947 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:25:25,182 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:25:25,490 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:25:26,437 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:25:29,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:25:29,291 INFO L93 Difference]: Finished difference Result 762 states and 884 transitions. [2020-09-04 15:25:29,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-04 15:25:29,291 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-09-04 15:25:29,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:25:29,300 INFO L225 Difference]: With dead ends: 762 [2020-09-04 15:25:29,300 INFO L226 Difference]: Without dead ends: 600 [2020-09-04 15:25:29,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-04 15:25:29,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2020-09-04 15:25:29,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 505. [2020-09-04 15:25:29,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 505 states. [2020-09-04 15:25:29,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 564 transitions. [2020-09-04 15:25:29,516 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 564 transitions. Word has length 167 [2020-09-04 15:25:29,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:25:29,517 INFO L479 AbstractCegarLoop]: Abstraction has 505 states and 564 transitions. [2020-09-04 15:25:29,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 15:25:29,518 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 564 transitions. [2020-09-04 15:25:29,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-04 15:25:29,521 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:25:29,521 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 15:25:29,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 15:25:29,522 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:25:29,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:25:29,522 INFO L82 PathProgramCache]: Analyzing trace with hash 189083004, now seen corresponding path program 1 times [2020-09-04 15:25:29,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:25:29,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1982852932] [2020-09-04 15:25:29,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:25:29,526 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:25:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:29,933 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:25:29,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:25:29,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:30,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:25:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:30,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:25:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:30,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:25:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:30,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:25:30,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:30,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 15:25:30,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:30,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-04 15:25:30,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:30,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-04 15:25:30,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:30,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-04 15:25:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:25:30,142 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 15:25:30,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1982852932] [2020-09-04 15:25:30,143 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:25:30,143 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 15:25:30,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906538659] [2020-09-04 15:25:30,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 15:25:30,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:25:30,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 15:25:30,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 15:25:30,147 INFO L87 Difference]: Start difference. First operand 505 states and 564 transitions. Second operand 9 states. [2020-09-04 15:25:30,691 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:25:32,736 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:25:33,071 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:25:33,435 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:25:33,828 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:25:34,177 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:25:34,482 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:25:34,775 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:25:35,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:25:35,874 INFO L93 Difference]: Finished difference Result 1377 states and 1651 transitions. [2020-09-04 15:25:35,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-04 15:25:35,875 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-04 15:25:35,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:25:35,885 INFO L225 Difference]: With dead ends: 1377 [2020-09-04 15:25:35,885 INFO L226 Difference]: Without dead ends: 982 [2020-09-04 15:25:35,887 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-04 15:25:35,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2020-09-04 15:25:36,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 879. [2020-09-04 15:25:36,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 879 states. [2020-09-04 15:25:36,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1005 transitions. [2020-09-04 15:25:36,264 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1005 transitions. Word has length 172 [2020-09-04 15:25:36,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:25:36,264 INFO L479 AbstractCegarLoop]: Abstraction has 879 states and 1005 transitions. [2020-09-04 15:25:36,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 15:25:36,265 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1005 transitions. [2020-09-04 15:25:36,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-04 15:25:36,271 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:25:36,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 15:25:36,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 15:25:36,271 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:25:36,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:25:36,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1049977612, now seen corresponding path program 1 times [2020-09-04 15:25:36,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:25:36,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1821466992] [2020-09-04 15:25:36,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:25:36,276 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:25:36,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 15:25:36,375 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 15:25:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 15:25:36,452 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 15:25:36,723 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 15:25:36,723 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 15:25:36,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 15:25:36,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 03:25:36 BoogieIcfgContainer [2020-09-04 15:25:36,765 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 15:25:36,767 INFO L168 Benchmark]: Toolchain (without parser) took 21824.79 ms. Allocated memory was 140.0 MB in the beginning and 621.8 MB in the end (delta: 481.8 MB). Free memory was 102.0 MB in the beginning and 316.8 MB in the end (delta: -214.8 MB). Peak memory consumption was 267.1 MB. Max. memory is 7.1 GB. [2020-09-04 15:25:36,769 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 15:25:36,775 INFO L168 Benchmark]: CACSL2BoogieTranslator took 800.01 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 101.8 MB in the beginning and 172.0 MB in the end (delta: -70.2 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2020-09-04 15:25:36,777 INFO L168 Benchmark]: Boogie Preprocessor took 130.72 ms. Allocated memory is still 205.0 MB. Free memory was 172.0 MB in the beginning and 168.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-04 15:25:36,778 INFO L168 Benchmark]: RCFGBuilder took 1279.70 ms. Allocated memory was 205.0 MB in the beginning and 235.4 MB in the end (delta: 30.4 MB). Free memory was 168.0 MB in the beginning and 169.6 MB in the end (delta: -1.6 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. [2020-09-04 15:25:36,779 INFO L168 Benchmark]: TraceAbstraction took 19606.21 ms. Allocated memory was 235.4 MB in the beginning and 621.8 MB in the end (delta: 386.4 MB). Free memory was 169.6 MB in the beginning and 316.8 MB in the end (delta: -147.2 MB). Peak memory consumption was 239.2 MB. Max. memory is 7.1 GB. [2020-09-04 15:25:36,791 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 800.01 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 101.8 MB in the beginning and 172.0 MB in the end (delta: -70.2 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.72 ms. Allocated memory is still 205.0 MB. Free memory was 172.0 MB in the beginning and 168.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1279.70 ms. Allocated memory was 205.0 MB in the beginning and 235.4 MB in the end (delta: 30.4 MB). Free memory was 168.0 MB in the beginning and 169.6 MB in the end (delta: -1.6 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19606.21 ms. Allocated memory was 235.4 MB in the beginning and 621.8 MB in the end (delta: 386.4 MB). Free memory was 169.6 MB in the beginning and 316.8 MB in the end (delta: -147.2 MB). Peak memory consumption was 239.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 853]: 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; [L356] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L559] int pumpRunning = 0; [L560] int systemActive = 1; [L896] int cleanupTimeShifts = 4; [L969] int retValue_acc ; [L970] int tmp ; [L974] FCALL select_helpers() [L975] FCALL select_features() [L976] CALL, EXPR valid_product() [L887] int retValue_acc ; [L890] retValue_acc = 1 [L891] return (retValue_acc); [L976] RET, EXPR valid_product() [L976] tmp = valid_product() [L978] COND TRUE \read(tmp) [L980] FCALL setup() [L981] CALL runTest() [L963] CALL test() [L781] int splverifierCounter ; [L782] int tmp ; [L783] int tmp___0 ; [L784] int tmp___1 ; [L785] int tmp___2 ; [L788] splverifierCounter = 0 [L790] COND TRUE 1 [L792] COND TRUE splverifierCounter < 4 [L798] tmp = __VERIFIER_nondet_int() [L800] COND TRUE \read(tmp) [L802] CALL waterRise() [L102] COND TRUE waterLevel < 2 [L103] waterLevel = waterLevel + 1 [L802] RET waterRise() [L808] tmp___0 = __VERIFIER_nondet_int() [L810] COND FALSE !(\read(tmp___0)) [L818] tmp___2 = __VERIFIER_nondet_int() [L820] COND FALSE !(\read(tmp___2)) [L826] tmp___1 = __VERIFIER_nondet_int() [L828] COND TRUE \read(tmp___1) [L830] CALL stopSystem() [L759] COND FALSE !(\read(pumpRunning)) [L766] systemActive = 0 [L830] RET stopSystem() [L837] CALL timeShift() [L566] COND FALSE !(\read(pumpRunning)) [L573] COND FALSE !(\read(systemActive)) [L581] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L123] int retValue_acc ; [L126] retValue_acc = methaneLevelCritical [L127] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L155] int retValue_acc ; [L158] retValue_acc = waterLevel [L159] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L673] int retValue_acc ; [L676] retValue_acc = pumpRunning [L677] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L853] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 653 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 15.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1088 SDtfs, 1702 SDslu, 1440 SDs, 0 SdLazy, 3453 SolverSat, 577 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=879occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 4 MinimizatonAttempts, 279 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...