/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product09.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 20:47:57,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 20:47:57,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 20:47:58,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 20:47:58,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 20:47:58,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 20:47:58,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 20:47:58,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 20:47:58,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 20:47:58,041 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 20:47:58,042 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 20:47:58,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 20:47:58,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 20:47:58,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 20:47:58,048 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 20:47:58,050 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 20:47:58,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 20:47:58,052 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 20:47:58,054 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 20:47:58,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 20:47:58,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 20:47:58,067 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 20:47:58,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 20:47:58,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 20:47:58,081 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 20:47:58,081 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 20:47:58,081 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 20:47:58,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 20:47:58,083 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 20:47:58,084 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 20:47:58,084 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 20:47:58,085 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 20:47:58,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 20:47:58,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 20:47:58,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 20:47:58,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 20:47:58,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 20:47:58,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 20:47:58,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 20:47:58,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 20:47:58,091 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 20:47:58,091 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 20:47:58,104 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 20:47:58,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 20:47:58,105 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 20:47:58,105 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 20:47:58,106 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 20:47:58,106 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 20:47:58,106 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 20:47:58,106 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 20:47:58,106 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 20:47:58,107 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 20:47:58,107 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 20:47:58,107 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 20:47:58,107 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 20:47:58,107 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 20:47:58,108 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 20:47:58,108 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 20:47:58,108 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 20:47:58,108 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 20:47:58,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 20:47:58,109 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 20:47:58,109 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 20:47:58,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 20:47:58,109 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-09-04 20:47:58,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 20:47:58,539 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 20:47:58,543 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 20:47:58,546 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 20:47:58,546 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 20:47:58,547 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product09.cil.c [2020-09-04 20:47:58,643 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7c5f2d01a/468e6216982a49d3bf74db391b2b5749/FLAGf8863c5b7 [2020-09-04 20:47:59,287 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 20:47:59,290 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product09.cil.c [2020-09-04 20:47:59,311 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7c5f2d01a/468e6216982a49d3bf74db391b2b5749/FLAGf8863c5b7 [2020-09-04 20:47:59,508 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7c5f2d01a/468e6216982a49d3bf74db391b2b5749 [2020-09-04 20:47:59,522 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 20:47:59,524 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 20:47:59,529 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 20:47:59,529 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 20:47:59,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 20:47:59,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:47:59" (1/1) ... [2020-09-04 20:47:59,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:47:59, skipping insertion in model container [2020-09-04 20:47:59,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:47:59" (1/1) ... [2020-09-04 20:47:59,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 20:47:59,595 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 20:47:59,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:47:59,950 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 20:48:00,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:48:00,177 INFO L208 MainTranslator]: Completed translation [2020-09-04 20:48:00,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:00 WrapperNode [2020-09-04 20:48:00,177 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 20:48:00,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 20:48:00,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 20:48:00,178 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 20:48:00,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:00" (1/1) ... [2020-09-04 20:48:00,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:00" (1/1) ... [2020-09-04 20:48:00,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:00" (1/1) ... [2020-09-04 20:48:00,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:00" (1/1) ... [2020-09-04 20:48:00,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:00" (1/1) ... [2020-09-04 20:48:00,257 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:00" (1/1) ... [2020-09-04 20:48:00,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:00" (1/1) ... [2020-09-04 20:48:00,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 20:48:00,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 20:48:00,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 20:48:00,273 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 20:48:00,274 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:00" (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 20:48:00,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 20:48:00,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 20:48:00,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 20:48:00,356 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 20:48:00,356 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 20:48:00,356 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 20:48:00,356 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 20:48:00,357 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 20:48:00,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 20:48:00,357 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 20:48:00,357 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 20:48:00,357 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 20:48:00,363 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-04 20:48:00,364 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 20:48:00,364 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 20:48:00,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 20:48:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 20:48:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 20:48:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-04 20:48:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 20:48:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 20:48:00,366 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 20:48:00,366 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 20:48:00,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 20:48:00,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 20:48:00,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 20:48:00,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 20:48:00,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 20:48:00,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 20:48:00,367 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 20:48:00,367 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 20:48:00,367 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 20:48:00,367 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 20:48:00,368 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 20:48:00,368 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 20:48:00,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 20:48:00,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 20:48:00,368 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 20:48:00,368 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 20:48:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 20:48:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 20:48:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 20:48:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 20:48:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 20:48:00,369 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 20:48:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 20:48:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 20:48:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 20:48:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 20:48:00,370 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 20:48:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 20:48:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 20:48:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 20:48:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 20:48:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 20:48:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 20:48:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 20:48:00,371 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 20:48:00,372 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-04 20:48:00,372 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 20:48:00,372 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-04 20:48:00,372 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 20:48:00,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 20:48:00,372 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 20:48:00,372 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 20:48:00,372 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 20:48:00,373 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 20:48:00,373 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 20:48:00,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 20:48:00,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 20:48:00,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 20:48:00,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 20:48:00,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 20:48:00,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 20:48:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 20:48:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 20:48:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 20:48:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 20:48:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 20:48:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 20:48:00,374 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 20:48:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 20:48:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 20:48:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 20:48:01,427 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 20:48:01,428 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 20:48:01,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:48:01 BoogieIcfgContainer [2020-09-04 20:48:01,435 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 20:48:01,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 20:48:01,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 20:48:01,440 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 20:48:01,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 08:47:59" (1/3) ... [2020-09-04 20:48:01,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627b2b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:48:01, skipping insertion in model container [2020-09-04 20:48:01,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:00" (2/3) ... [2020-09-04 20:48:01,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627b2b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:48:01, skipping insertion in model container [2020-09-04 20:48:01,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:48:01" (3/3) ... [2020-09-04 20:48:01,444 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product09.cil.c [2020-09-04 20:48:01,455 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 20:48:01,466 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 20:48:01,486 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 20:48:01,509 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 20:48:01,509 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 20:48:01,509 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 20:48:01,510 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 20:48:01,510 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 20:48:01,510 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 20:48:01,510 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 20:48:01,510 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 20:48:01,531 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states. [2020-09-04 20:48:01,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-04 20:48:01,552 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:48:01,554 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 20:48:01,554 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:48:01,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:48:01,562 INFO L82 PathProgramCache]: Analyzing trace with hash -2059425041, now seen corresponding path program 1 times [2020-09-04 20:48:01,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:48:01,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1900977754] [2020-09-04 20:48:01,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:48:01,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:02,375 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:48:02,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:48:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:02,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:48:02,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:02,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:48:02,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:02,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:48:02,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:02,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:48:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:02,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 20:48:02,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:02,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 20:48:02,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:02,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 20:48:02,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:02,611 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 20:48:02,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1900977754] [2020-09-04 20:48:02,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:48:02,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 20:48:02,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781173460] [2020-09-04 20:48:02,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 20:48:02,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:48:02,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 20:48:02,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 20:48:02,652 INFO L87 Difference]: Start difference. First operand 268 states. Second operand 3 states. [2020-09-04 20:48:03,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:48:03,722 INFO L93 Difference]: Finished difference Result 365 states and 438 transitions. [2020-09-04 20:48:03,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 20:48:03,724 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-04 20:48:03,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:48:03,744 INFO L225 Difference]: With dead ends: 365 [2020-09-04 20:48:03,744 INFO L226 Difference]: Without dead ends: 238 [2020-09-04 20:48:03,750 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 20:48:03,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-09-04 20:48:03,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 201. [2020-09-04 20:48:03,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-09-04 20:48:03,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 215 transitions. [2020-09-04 20:48:03,902 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 215 transitions. Word has length 153 [2020-09-04 20:48:03,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:48:03,905 INFO L479 AbstractCegarLoop]: Abstraction has 201 states and 215 transitions. [2020-09-04 20:48:03,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 20:48:03,906 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 215 transitions. [2020-09-04 20:48:03,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-04 20:48:03,919 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:48:03,919 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 20:48:03,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 20:48:03,920 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:48:03,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:48:03,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1720620052, now seen corresponding path program 1 times [2020-09-04 20:48:03,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:48:03,921 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1377119757] [2020-09-04 20:48:03,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:48:04,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:04,396 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:48:04,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:48:04,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:04,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:48:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:04,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:48:04,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:04,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:48:04,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:04,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:48:04,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:04,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-04 20:48:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:04,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 20:48:04,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:04,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-04 20:48:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:04,486 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 20:48:04,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1377119757] [2020-09-04 20:48:04,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:48:04,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 20:48:04,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887095719] [2020-09-04 20:48:04,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 20:48:04,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:48:04,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 20:48:04,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 20:48:04,492 INFO L87 Difference]: Start difference. First operand 201 states and 215 transitions. Second operand 4 states. [2020-09-04 20:48:05,182 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:48:05,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:48:05,737 INFO L93 Difference]: Finished difference Result 282 states and 313 transitions. [2020-09-04 20:48:05,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 20:48:05,738 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-04 20:48:05,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:48:05,741 INFO L225 Difference]: With dead ends: 282 [2020-09-04 20:48:05,741 INFO L226 Difference]: Without dead ends: 221 [2020-09-04 20:48:05,743 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 20:48:05,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-09-04 20:48:05,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 191. [2020-09-04 20:48:05,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-04 20:48:05,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 202 transitions. [2020-09-04 20:48:05,819 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 202 transitions. Word has length 154 [2020-09-04 20:48:05,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:48:05,820 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 202 transitions. [2020-09-04 20:48:05,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 20:48:05,821 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 202 transitions. [2020-09-04 20:48:05,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-04 20:48:05,822 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:48:05,823 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 20:48:05,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 20:48:05,823 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:48:05,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:48:05,824 INFO L82 PathProgramCache]: Analyzing trace with hash 2141035662, now seen corresponding path program 1 times [2020-09-04 20:48:05,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:48:05,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1894485891] [2020-09-04 20:48:05,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:48:05,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:06,203 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:48:06,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:48:06,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:06,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:48:06,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:06,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:48:06,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:06,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:48:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:06,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:48:06,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:06,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 20:48:06,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:06,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 20:48:06,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:06,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-04 20:48:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:06,422 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 20:48:06,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1894485891] [2020-09-04 20:48:06,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:48:06,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 20:48:06,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230763772] [2020-09-04 20:48:06,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 20:48:06,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:48:06,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 20:48:06,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 20:48:06,425 INFO L87 Difference]: Start difference. First operand 191 states and 202 transitions. Second operand 9 states. [2020-09-04 20:48:06,939 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:48:07,252 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:48:07,572 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 20:48:07,904 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:48:08,219 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:48:08,508 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:48:09,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:48:09,563 INFO L93 Difference]: Finished difference Result 302 states and 338 transitions. [2020-09-04 20:48:09,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-04 20:48:09,564 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-09-04 20:48:09,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:48:09,567 INFO L225 Difference]: With dead ends: 302 [2020-09-04 20:48:09,567 INFO L226 Difference]: Without dead ends: 221 [2020-09-04 20:48:09,568 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-09-04 20:48:09,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-09-04 20:48:09,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 191. [2020-09-04 20:48:09,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-04 20:48:09,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 201 transitions. [2020-09-04 20:48:09,624 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 201 transitions. Word has length 163 [2020-09-04 20:48:09,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:48:09,624 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 201 transitions. [2020-09-04 20:48:09,625 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 20:48:09,625 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 201 transitions. [2020-09-04 20:48:09,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-04 20:48:09,627 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:48:09,627 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] [2020-09-04 20:48:09,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 20:48:09,627 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:48:09,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:48:09,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1523328368, now seen corresponding path program 1 times [2020-09-04 20:48:09,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:48:09,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [302195775] [2020-09-04 20:48:09,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:48:09,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:10,051 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:48:10,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:48:10,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:10,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:48:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:10,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:48:10,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:10,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:48:10,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:10,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:48:10,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:10,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-04 20:48:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:10,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-04 20:48:10,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:10,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-04 20:48:10,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:10,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-04 20:48:10,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:10,260 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 20:48:10,261 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [302195775] [2020-09-04 20:48:10,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:48:10,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 20:48:10,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203303780] [2020-09-04 20:48:10,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 20:48:10,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:48:10,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 20:48:10,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-04 20:48:10,264 INFO L87 Difference]: Start difference. First operand 191 states and 201 transitions. Second operand 8 states. [2020-09-04 20:48:10,925 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:48:12,286 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:48:12,605 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:48:12,844 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:48:13,172 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:48:13,466 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:48:13,733 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:48:14,037 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:48:14,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:48:14,313 INFO L93 Difference]: Finished difference Result 368 states and 417 transitions. [2020-09-04 20:48:14,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 20:48:14,314 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 166 [2020-09-04 20:48:14,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:48:14,318 INFO L225 Difference]: With dead ends: 368 [2020-09-04 20:48:14,319 INFO L226 Difference]: Without dead ends: 287 [2020-09-04 20:48:14,320 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-04 20:48:14,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-04 20:48:14,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 262. [2020-09-04 20:48:14,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-09-04 20:48:14,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 284 transitions. [2020-09-04 20:48:14,407 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 284 transitions. Word has length 166 [2020-09-04 20:48:14,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:48:14,408 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 284 transitions. [2020-09-04 20:48:14,408 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 20:48:14,408 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 284 transitions. [2020-09-04 20:48:14,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-04 20:48:14,411 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:48:14,411 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 20:48:14,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 20:48:14,411 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:48:14,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:48:14,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1767718716, now seen corresponding path program 1 times [2020-09-04 20:48:14,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:48:14,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1035354390] [2020-09-04 20:48:14,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:48:14,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:14,717 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:48:14,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:48:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:14,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:48:14,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:14,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:48:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:14,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:48:14,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:14,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:48:14,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:14,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-04 20:48:14,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:14,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 20:48:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:14,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-04 20:48:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:14,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-04 20:48:14,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:14,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-04 20:48:14,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:14,840 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 20:48:14,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1035354390] [2020-09-04 20:48:14,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:48:14,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 20:48:14,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307801402] [2020-09-04 20:48:14,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 20:48:14,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:48:14,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 20:48:14,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-04 20:48:14,843 INFO L87 Difference]: Start difference. First operand 262 states and 284 transitions. Second operand 5 states. [2020-09-04 20:48:15,414 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:48:15,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:48:15,972 INFO L93 Difference]: Finished difference Result 361 states and 402 transitions. [2020-09-04 20:48:15,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-04 20:48:15,973 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 171 [2020-09-04 20:48:15,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:48:15,976 INFO L225 Difference]: With dead ends: 361 [2020-09-04 20:48:15,976 INFO L226 Difference]: Without dead ends: 269 [2020-09-04 20:48:15,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-04 20:48:15,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-09-04 20:48:16,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 248. [2020-09-04 20:48:16,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2020-09-04 20:48:16,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 263 transitions. [2020-09-04 20:48:16,048 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 263 transitions. Word has length 171 [2020-09-04 20:48:16,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:48:16,048 INFO L479 AbstractCegarLoop]: Abstraction has 248 states and 263 transitions. [2020-09-04 20:48:16,048 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 20:48:16,049 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 263 transitions. [2020-09-04 20:48:16,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-04 20:48:16,051 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:48:16,051 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 20:48:16,051 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 20:48:16,052 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:48:16,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:48:16,052 INFO L82 PathProgramCache]: Analyzing trace with hash -645930008, now seen corresponding path program 1 times [2020-09-04 20:48:16,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:48:16,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1872426412] [2020-09-04 20:48:16,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:48:16,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:48:16,130 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:48:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:48:16,206 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:48:16,363 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 20:48:16,363 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 20:48:16,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 20:48:16,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 08:48:16 BoogieIcfgContainer [2020-09-04 20:48:16,594 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 20:48:16,596 INFO L168 Benchmark]: Toolchain (without parser) took 17071.79 ms. Allocated memory was 138.4 MB in the beginning and 512.8 MB in the end (delta: 374.3 MB). Free memory was 102.1 MB in the beginning and 180.8 MB in the end (delta: -78.6 MB). Peak memory consumption was 295.7 MB. Max. memory is 7.1 GB. [2020-09-04 20:48:16,597 INFO L168 Benchmark]: CDTParser took 0.91 ms. Allocated memory is still 138.4 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-04 20:48:16,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 649.26 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 101.7 MB in the beginning and 174.6 MB in the end (delta: -72.8 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. [2020-09-04 20:48:16,599 INFO L168 Benchmark]: Boogie Preprocessor took 94.35 ms. Allocated memory is still 203.4 MB. Free memory was 174.6 MB in the beginning and 170.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-04 20:48:16,599 INFO L168 Benchmark]: RCFGBuilder took 1162.02 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 170.3 MB in the beginning and 184.3 MB in the end (delta: -14.0 MB). Peak memory consumption was 87.9 MB. Max. memory is 7.1 GB. [2020-09-04 20:48:16,600 INFO L168 Benchmark]: TraceAbstraction took 15157.73 ms. Allocated memory was 235.4 MB in the beginning and 512.8 MB in the end (delta: 277.3 MB). Free memory was 184.3 MB in the beginning and 180.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 280.9 MB. Max. memory is 7.1 GB. [2020-09-04 20:48:16,604 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.91 ms. Allocated memory is still 138.4 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 649.26 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 101.7 MB in the beginning and 174.6 MB in the end (delta: -72.8 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.35 ms. Allocated memory is still 203.4 MB. Free memory was 174.6 MB in the beginning and 170.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1162.02 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 170.3 MB in the beginning and 184.3 MB in the end (delta: -14.0 MB). Peak memory consumption was 87.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15157.73 ms. Allocated memory was 235.4 MB in the beginning and 512.8 MB in the end (delta: 277.3 MB). Free memory was 184.3 MB in the beginning and 180.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 280.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 148]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=172, \old(head)=164, \old(head)=176, \old(methaneLevelCritical)=150, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=148, cleanupTimeShifts=4, head={176:164}, methaneLevelCritical=150, pumpRunning=141, systemActive=140, waterLevel=148] [L224] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=172, \old(head)=176, \old(head)=164, \old(methaneLevelCritical)=150, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=148, cleanupTimeShifts=4, head={176:164}, methaneLevelCritical=150, pumpRunning=0, systemActive=140, waterLevel=148] [L225] int systemActive = 1; VAL [\old(cleanupTimeShifts)=172, \old(head)=164, \old(head)=176, \old(methaneLevelCritical)=150, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=148, cleanupTimeShifts=4, head={176:164}, methaneLevelCritical=150, pumpRunning=0, systemActive=1, waterLevel=148] [L589] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=172, \old(head)=164, \old(head)=176, \old(methaneLevelCritical)=150, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=148, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=150, pumpRunning=0, systemActive=1, waterLevel=148] [L786] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=172, \old(head)=164, \old(head)=176, \old(methaneLevelCritical)=150, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=148, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=150, pumpRunning=0, systemActive=1, waterLevel=1] [L787] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=172, \old(head)=176, \old(head)=164, \old(methaneLevelCritical)=150, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=148, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L122] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L126] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L127] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L411] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L414] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L415] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L128] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L128] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L130] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L132] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L133] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L112] CALL test() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L154] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L155] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L156] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L157] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L158] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L161] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L163] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L165] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L171] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L173] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L175] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L804] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L805] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L175] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L181] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L183] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L191] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L193] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L206] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L232] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L239] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L241] FCALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L247] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L352] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L353] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L354] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L358] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L825] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L828] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L829] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L358] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L358] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L360] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L364] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L857] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L860] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L861] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L364] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L364] tmp___0 = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L366] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L368] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L305] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L308] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L309] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L368] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L368] tmp___1 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L370] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L374] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L148] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 587 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 10.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 909 SDtfs, 958 SDslu, 1147 SDs, 0 SdLazy, 1888 SolverSat, 279 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=268occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 143 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 978 NumberOfCodeBlocks, 978 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 802 ConstructedInterpolants, 0 QuantifiedInterpolants, 328466 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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...