/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_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 20:48:53,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 20:48:53,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 20:48:53,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 20:48:53,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 20:48:53,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 20:48:53,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 20:48:53,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 20:48:53,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 20:48:53,401 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 20:48:53,402 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 20:48:53,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 20:48:53,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 20:48:53,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 20:48:53,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 20:48:53,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 20:48:53,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 20:48:53,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 20:48:53,417 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 20:48:53,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 20:48:53,430 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 20:48:53,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 20:48:53,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 20:48:53,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 20:48:53,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 20:48:53,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 20:48:53,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 20:48:53,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 20:48:53,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 20:48:53,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 20:48:53,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 20:48:53,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 20:48:53,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 20:48:53,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 20:48:53,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 20:48:53,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 20:48:53,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 20:48:53,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 20:48:53,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 20:48:53,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 20:48:53,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 20:48:53,453 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 20:48:53,473 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 20:48:53,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 20:48:53,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 20:48:53,475 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 20:48:53,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 20:48:53,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 20:48:53,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 20:48:53,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 20:48:53,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 20:48:53,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 20:48:53,476 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 20:48:53,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 20:48:53,477 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 20:48:53,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 20:48:53,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 20:48:53,478 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 20:48:53,478 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 20:48:53,478 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 20:48:53,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 20:48:53,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 20:48:53,479 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 20:48:53,479 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 20:48:53,479 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 20:48:53,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 20:48:53,936 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 20:48:53,941 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 20:48:53,945 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 20:48:53,946 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 20:48:53,947 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product21.cil.c [2020-09-04 20:48:54,040 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/36ef92d9d/ca3f81e46b0d436b975ec78060ad3739/FLAG51716325d [2020-09-04 20:48:54,644 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 20:48:54,645 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product21.cil.c [2020-09-04 20:48:54,658 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/36ef92d9d/ca3f81e46b0d436b975ec78060ad3739/FLAG51716325d [2020-09-04 20:48:54,911 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/36ef92d9d/ca3f81e46b0d436b975ec78060ad3739 [2020-09-04 20:48:54,926 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 20:48:54,928 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 20:48:54,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 20:48:54,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 20:48:54,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 20:48:54,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:48:54" (1/1) ... [2020-09-04 20:48:54,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa7080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:54, skipping insertion in model container [2020-09-04 20:48:54,939 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:48:54" (1/1) ... [2020-09-04 20:48:54,949 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 20:48:55,018 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 20:48:55,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:48:55,418 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 20:48:55,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:48:55,647 INFO L208 MainTranslator]: Completed translation [2020-09-04 20:48:55,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:55 WrapperNode [2020-09-04 20:48:55,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 20:48:55,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 20:48:55,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 20:48:55,649 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 20:48:55,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:55" (1/1) ... [2020-09-04 20:48:55,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:55" (1/1) ... [2020-09-04 20:48:55,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:55" (1/1) ... [2020-09-04 20:48:55,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:55" (1/1) ... [2020-09-04 20:48:55,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:55" (1/1) ... [2020-09-04 20:48:55,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:55" (1/1) ... [2020-09-04 20:48:55,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:55" (1/1) ... [2020-09-04 20:48:55,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 20:48:55,745 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 20:48:55,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 20:48:55,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 20:48:55,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:55" (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 20:48:55,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 20:48:55,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 20:48:55,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 20:48:55,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 20:48:55,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 20:48:55,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 20:48:55,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 20:48:55,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 20:48:55,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 20:48:55,824 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 20:48:55,824 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-04 20:48:55,824 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-04 20:48:55,824 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 20:48:55,825 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 20:48:55,825 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 20:48:55,825 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 20:48:55,825 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 20:48:55,825 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 20:48:55,826 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-04 20:48:55,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 20:48:55,826 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 20:48:55,826 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 20:48:55,827 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 20:48:55,827 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 20:48:55,827 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 20:48:55,827 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 20:48:55,827 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 20:48:55,827 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-04 20:48:55,828 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 20:48:55,828 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 20:48:55,828 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 20:48:55,828 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 20:48:55,828 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 20:48:55,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-04 20:48:55,829 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 20:48:55,829 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 20:48:55,829 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 20:48:55,829 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 20:48:55,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 20:48:55,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 20:48:55,830 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 20:48:55,830 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 20:48:55,830 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 20:48:55,830 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 20:48:55,830 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 20:48:55,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 20:48:55,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 20:48:55,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 20:48:55,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 20:48:55,831 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 20:48:55,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 20:48:55,831 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 20:48:55,832 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 20:48:55,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 20:48:55,832 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 20:48:55,832 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 20:48:55,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 20:48:55,832 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 20:48:55,832 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 20:48:55,833 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 20:48:55,833 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 20:48:55,833 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-04 20:48:55,833 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 20:48:55,833 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 20:48:55,833 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 20:48:55,833 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 20:48:55,834 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 20:48:55,834 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-04 20:48:55,834 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 20:48:55,834 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-04 20:48:55,834 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-04 20:48:55,834 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-04 20:48:55,835 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 20:48:55,835 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 20:48:55,835 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 20:48:55,835 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 20:48:55,835 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 20:48:55,835 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 20:48:55,836 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 20:48:55,836 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 20:48:55,836 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 20:48:55,836 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 20:48:55,836 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 20:48:55,836 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 20:48:55,837 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 20:48:55,837 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 20:48:55,837 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 20:48:55,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 20:48:55,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 20:48:55,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 20:48:56,994 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 20:48:56,995 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 20:48:57,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:48:57 BoogieIcfgContainer [2020-09-04 20:48:57,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 20:48:57,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 20:48:57,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 20:48:57,008 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 20:48:57,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 08:48:54" (1/3) ... [2020-09-04 20:48:57,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cec90c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:48:57, skipping insertion in model container [2020-09-04 20:48:57,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:55" (2/3) ... [2020-09-04 20:48:57,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cec90c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:48:57, skipping insertion in model container [2020-09-04 20:48:57,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:48:57" (3/3) ... [2020-09-04 20:48:57,013 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product21.cil.c [2020-09-04 20:48:57,026 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 20:48:57,038 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 20:48:57,061 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 20:48:57,093 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 20:48:57,093 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 20:48:57,093 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 20:48:57,093 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 20:48:57,093 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 20:48:57,094 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 20:48:57,094 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 20:48:57,094 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 20:48:57,119 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states. [2020-09-04 20:48:57,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-04 20:48:57,144 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:48:57,146 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 20:48:57,147 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:48:57,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:48:57,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1461403982, now seen corresponding path program 1 times [2020-09-04 20:48:57,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:48:57,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [670453720] [2020-09-04 20:48:57,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:48:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:58,001 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:48:58,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:48:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:58,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:48:58,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:58,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:48:58,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:58,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:48:58,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:58,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:48:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:58,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 20:48:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:58,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 20:48:58,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:58,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 20:48:58,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:58,301 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 20:48:58,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [670453720] [2020-09-04 20:48:58,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:48:58,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 20:48:58,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584423636] [2020-09-04 20:48:58,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 20:48:58,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:48:58,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 20:48:58,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 20:48:58,349 INFO L87 Difference]: Start difference. First operand 306 states. Second operand 3 states. [2020-09-04 20:48:59,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:48:59,771 INFO L93 Difference]: Finished difference Result 477 states and 570 transitions. [2020-09-04 20:48:59,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 20:48:59,774 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-04 20:48:59,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:48:59,796 INFO L225 Difference]: With dead ends: 477 [2020-09-04 20:48:59,796 INFO L226 Difference]: Without dead ends: 296 [2020-09-04 20:48:59,803 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 20:48:59,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-09-04 20:48:59,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 255. [2020-09-04 20:48:59,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-04 20:48:59,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 278 transitions. [2020-09-04 20:48:59,948 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 278 transitions. Word has length 153 [2020-09-04 20:48:59,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:48:59,949 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 278 transitions. [2020-09-04 20:48:59,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 20:48:59,949 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 278 transitions. [2020-09-04 20:48:59,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-04 20:48:59,954 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:48:59,955 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 20:48:59,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 20:48:59,955 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:48:59,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:48:59,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1820086342, now seen corresponding path program 1 times [2020-09-04 20:48:59,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:48:59,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [608214541] [2020-09-04 20:48:59,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:49:00,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:00,356 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:49:00,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:49:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:00,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:49:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:00,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:49:00,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:00,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:49:00,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:00,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:49:00,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:00,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-04 20:49:00,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:00,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 20:49:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:00,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-04 20:49:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:00,441 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 20:49:00,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [608214541] [2020-09-04 20:49:00,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:49:00,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 20:49:00,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452299561] [2020-09-04 20:49:00,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 20:49:00,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:49:00,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 20:49:00,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 20:49:00,446 INFO L87 Difference]: Start difference. First operand 255 states and 278 transitions. Second operand 4 states. [2020-09-04 20:49:01,156 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:49:02,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:49:02,215 INFO L93 Difference]: Finished difference Result 394 states and 445 transitions. [2020-09-04 20:49:02,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 20:49:02,215 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-04 20:49:02,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:49:02,220 INFO L225 Difference]: With dead ends: 394 [2020-09-04 20:49:02,220 INFO L226 Difference]: Without dead ends: 279 [2020-09-04 20:49:02,222 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 20:49:02,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-09-04 20:49:02,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 245. [2020-09-04 20:49:02,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-09-04 20:49:02,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 265 transitions. [2020-09-04 20:49:02,362 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 265 transitions. Word has length 154 [2020-09-04 20:49:02,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:49:02,365 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 265 transitions. [2020-09-04 20:49:02,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 20:49:02,365 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 265 transitions. [2020-09-04 20:49:02,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-04 20:49:02,369 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:49:02,370 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 20:49:02,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 20:49:02,370 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:49:02,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:49:02,371 INFO L82 PathProgramCache]: Analyzing trace with hash 874874567, now seen corresponding path program 1 times [2020-09-04 20:49:02,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:49:02,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1945329299] [2020-09-04 20:49:02,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:49:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:02,822 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:49:02,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:49:02,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:02,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:49:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:02,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:49:02,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:02,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:49:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:03,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:49:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:03,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 20:49:03,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:03,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 20:49:03,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:03,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-04 20:49:03,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:03,075 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 20:49:03,076 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1945329299] [2020-09-04 20:49:03,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:49:03,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 20:49:03,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227742773] [2020-09-04 20:49:03,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 20:49:03,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:49:03,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 20:49:03,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 20:49:03,081 INFO L87 Difference]: Start difference. First operand 245 states and 265 transitions. Second operand 9 states. [2020-09-04 20:49:03,773 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:49:04,095 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:49:04,399 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 20:49:04,720 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:49:05,070 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:49:05,329 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:49:06,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:49:06,916 INFO L93 Difference]: Finished difference Result 414 states and 470 transitions. [2020-09-04 20:49:06,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-04 20:49:06,922 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-09-04 20:49:06,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:49:06,925 INFO L225 Difference]: With dead ends: 414 [2020-09-04 20:49:06,925 INFO L226 Difference]: Without dead ends: 279 [2020-09-04 20:49:06,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-09-04 20:49:06,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-09-04 20:49:07,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 245. [2020-09-04 20:49:07,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-09-04 20:49:07,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 264 transitions. [2020-09-04 20:49:07,007 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 264 transitions. Word has length 163 [2020-09-04 20:49:07,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:49:07,007 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 264 transitions. [2020-09-04 20:49:07,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 20:49:07,008 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 264 transitions. [2020-09-04 20:49:07,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-04 20:49:07,010 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:49:07,010 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:49:07,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 20:49:07,011 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:49:07,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:49:07,011 INFO L82 PathProgramCache]: Analyzing trace with hash 515182839, now seen corresponding path program 1 times [2020-09-04 20:49:07,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:49:07,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1512683385] [2020-09-04 20:49:07,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:49:07,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,396 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:49:07,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:49:07,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:49:07,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:49:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:49:07,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:49:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-04 20:49:07,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:49:07,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:49:07,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-04 20:49:07,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-04 20:49:07,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-04 20:49:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,572 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 20:49:07,572 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1512683385] [2020-09-04 20:49:07,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:49:07,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 20:49:07,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542287414] [2020-09-04 20:49:07,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 20:49:07,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:49:07,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 20:49:07,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 20:49:07,575 INFO L87 Difference]: Start difference. First operand 245 states and 264 transitions. Second operand 9 states. [2020-09-04 20:49:08,212 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:49:10,574 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:49:10,917 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:49:11,245 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:49:11,577 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:49:11,873 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:49:12,416 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:49:12,757 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:49:13,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:49:13,117 INFO L93 Difference]: Finished difference Result 586 states and 694 transitions. [2020-09-04 20:49:13,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-04 20:49:13,118 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 176 [2020-09-04 20:49:13,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:49:13,123 INFO L225 Difference]: With dead ends: 586 [2020-09-04 20:49:13,123 INFO L226 Difference]: Without dead ends: 451 [2020-09-04 20:49:13,124 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-04 20:49:13,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2020-09-04 20:49:13,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 374. [2020-09-04 20:49:13,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-09-04 20:49:13,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 416 transitions. [2020-09-04 20:49:13,253 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 416 transitions. Word has length 176 [2020-09-04 20:49:13,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:49:13,254 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 416 transitions. [2020-09-04 20:49:13,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 20:49:13,254 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 416 transitions. [2020-09-04 20:49:13,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-04 20:49:13,257 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:49:13,258 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:49:13,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 20:49:13,258 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:49:13,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:49:13,258 INFO L82 PathProgramCache]: Analyzing trace with hash -342521873, now seen corresponding path program 1 times [2020-09-04 20:49:13,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:49:13,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1729722040] [2020-09-04 20:49:13,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:49:13,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:49:13,338 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:49:13,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:49:13,414 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:49:13,621 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 20:49:13,621 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 20:49:13,622 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 20:49:13,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 08:49:13 BoogieIcfgContainer [2020-09-04 20:49:13,845 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 20:49:13,847 INFO L168 Benchmark]: Toolchain (without parser) took 18919.36 ms. Allocated memory was 139.5 MB in the beginning and 555.7 MB in the end (delta: 416.3 MB). Free memory was 102.7 MB in the beginning and 133.2 MB in the end (delta: -30.5 MB). Peak memory consumption was 385.8 MB. Max. memory is 7.1 GB. [2020-09-04 20:49:13,849 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-04 20:49:13,857 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.28 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 102.5 MB in the beginning and 173.8 MB in the end (delta: -71.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. [2020-09-04 20:49:13,859 INFO L168 Benchmark]: Boogie Preprocessor took 95.76 ms. Allocated memory is still 203.9 MB. Free memory was 173.8 MB in the beginning and 169.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-04 20:49:13,860 INFO L168 Benchmark]: RCFGBuilder took 1257.80 ms. Allocated memory was 203.9 MB in the beginning and 238.0 MB in the end (delta: 34.1 MB). Free memory was 169.0 MB in the beginning and 179.4 MB in the end (delta: -10.4 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. [2020-09-04 20:49:13,861 INFO L168 Benchmark]: TraceAbstraction took 16840.64 ms. Allocated memory was 238.0 MB in the beginning and 555.7 MB in the end (delta: 317.7 MB). Free memory was 179.4 MB in the beginning and 133.2 MB in the end (delta: 46.2 MB). Peak memory consumption was 364.0 MB. Max. memory is 7.1 GB. [2020-09-04 20:49:13,876 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 719.28 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 102.5 MB in the beginning and 173.8 MB in the end (delta: -71.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.76 ms. Allocated memory is still 203.9 MB. Free memory was 173.8 MB in the beginning and 169.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1257.80 ms. Allocated memory was 203.9 MB in the beginning and 238.0 MB in the end (delta: 34.1 MB). Free memory was 169.0 MB in the beginning and 179.4 MB in the end (delta: -10.4 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16840.64 ms. Allocated memory was 238.0 MB in the beginning and 555.7 MB in the end (delta: 317.7 MB). Free memory was 179.4 MB in the beginning and 133.2 MB in the end (delta: 46.2 MB). Peak memory consumption was 364.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 598]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=172, \old(head)=176, \old(head)=162, \old(methaneLevelCritical)=146, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=139, cleanupTimeShifts=172, head={0:0}, methaneLevelCritical=146, pumpRunning=133, systemActive=132, waterLevel=139] [L415] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=172, \old(head)=176, \old(head)=162, \old(methaneLevelCritical)=146, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=139, cleanupTimeShifts=172, head={0:0}, methaneLevelCritical=146, pumpRunning=0, systemActive=132, waterLevel=139] [L416] int systemActive = 1; VAL [\old(cleanupTimeShifts)=172, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=146, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=139, cleanupTimeShifts=172, head={0:0}, methaneLevelCritical=146, pumpRunning=0, systemActive=1, waterLevel=139] [L672] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=172, \old(head)=176, \old(head)=162, \old(methaneLevelCritical)=146, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=139, cleanupTimeShifts=172, head={0:0}, methaneLevelCritical=146, pumpRunning=0, systemActive=1, waterLevel=1] [L673] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=172, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=146, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=139, cleanupTimeShifts=172, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L761] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=172, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=146, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L837] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L838] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L842] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L843] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L844] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L920] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L923] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L924] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L844] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L844] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L846] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L848] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L849] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L828] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L607] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L608] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L609] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L610] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L611] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L614] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L616] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L618] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L624] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=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] [L626] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L628] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L690] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L691] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L628] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L634] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=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] [L636] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L644] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=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] [L646] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=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] [L659] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L423] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L430] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L432] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L478] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L481] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L496] CALL processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L452] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L455] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L470] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L496] RET processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L432] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L438] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L861] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L862] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L863] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L867] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L711] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L714] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L715] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L867] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L867] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L869] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L873] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L743] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L746] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L747] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L873] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L873] tmp___0 = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L875] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L877] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L530] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L533] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L534] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L877] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L877] tmp___1 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=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] [L879] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=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] [L883] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L598] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 621 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 932 SDtfs, 1173 SDslu, 1121 SDs, 0 SdLazy, 2550 SolverSat, 387 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=374occurred 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: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 186 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 827 NumberOfCodeBlocks, 827 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 261596 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...