/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 17:39:02,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 17:39:02,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 17:39:02,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 17:39:02,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 17:39:02,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 17:39:02,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 17:39:02,410 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 17:39:02,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 17:39:02,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 17:39:02,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 17:39:02,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 17:39:02,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 17:39:02,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 17:39:02,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 17:39:02,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 17:39:02,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 17:39:02,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 17:39:02,448 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 17:39:02,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 17:39:02,456 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 17:39:02,457 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 17:39:02,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 17:39:02,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 17:39:02,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 17:39:02,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 17:39:02,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 17:39:02,467 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 17:39:02,468 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 17:39:02,469 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 17:39:02,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 17:39:02,473 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 17:39:02,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 17:39:02,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 17:39:02,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 17:39:02,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 17:39:02,491 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 17:39:02,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 17:39:02,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 17:39:02,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 17:39:02,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 17:39:02,494 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-23 17:39:02,533 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 17:39:02,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 17:39:02,534 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 17:39:02,535 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 17:39:02,535 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 17:39:02,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 17:39:02,535 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 17:39:02,536 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 17:39:02,536 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 17:39:02,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 17:39:02,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 17:39:02,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 17:39:02,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 17:39:02,537 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 17:39:02,537 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 17:39:02,537 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 17:39:02,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 17:39:02,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 17:39:02,538 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 17:39:02,538 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 17:39:02,538 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 17:39:02,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 17:39:02,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 17:39:02,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 17:39:02,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 17:39:02,539 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 17:39:02,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 17:39:02,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 17:39:02,540 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 17:39:02,540 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 17:39:02,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 17:39:02,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 17:39:02,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 17:39:02,917 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 17:39:02,922 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 17:39:02,923 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product23.cil.c [2020-10-23 17:39:03,011 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6dbd5bf6/f46746c076b941738771e3ed7338ee38/FLAGee1e48753 [2020-10-23 17:39:03,666 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 17:39:03,667 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product23.cil.c [2020-10-23 17:39:03,682 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6dbd5bf6/f46746c076b941738771e3ed7338ee38/FLAGee1e48753 [2020-10-23 17:39:03,898 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6dbd5bf6/f46746c076b941738771e3ed7338ee38 [2020-10-23 17:39:03,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 17:39:03,907 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 17:39:03,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 17:39:03,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 17:39:03,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 17:39:03,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 05:39:03" (1/1) ... [2020-10-23 17:39:03,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eab3d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:39:03, skipping insertion in model container [2020-10-23 17:39:03,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 05:39:03" (1/1) ... [2020-10-23 17:39:03,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 17:39:04,009 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 17:39:04,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 17:39:04,369 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 17:39:04,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 17:39:04,564 INFO L208 MainTranslator]: Completed translation [2020-10-23 17:39:04,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:39:04 WrapperNode [2020-10-23 17:39:04,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 17:39:04,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 17:39:04,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 17:39:04,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 17:39:04,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:39:04" (1/1) ... [2020-10-23 17:39:04,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:39:04" (1/1) ... [2020-10-23 17:39:04,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:39:04" (1/1) ... [2020-10-23 17:39:04,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:39:04" (1/1) ... [2020-10-23 17:39:04,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:39:04" (1/1) ... [2020-10-23 17:39:04,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:39:04" (1/1) ... [2020-10-23 17:39:04,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:39:04" (1/1) ... [2020-10-23 17:39:04,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 17:39:04,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 17:39:04,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 17:39:04,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 17:39:04,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:39:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 17:39:04,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 17:39:04,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 17:39:04,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 17:39:04,807 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 17:39:04,807 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 17:39:04,808 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 17:39:04,808 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 17:39:04,808 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 17:39:04,808 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 17:39:04,809 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 17:39:04,809 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 17:39:04,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 17:39:04,810 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 17:39:04,811 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 17:39:04,812 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-23 17:39:04,813 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 17:39:04,813 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 17:39:04,813 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 17:39:04,814 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 17:39:04,814 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 17:39:04,815 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 17:39:04,815 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 17:39:04,815 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 17:39:04,815 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 17:39:04,820 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 17:39:04,820 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 17:39:04,820 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 17:39:04,820 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 17:39:04,820 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 17:39:04,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 17:39:04,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 17:39:04,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 17:39:04,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 17:39:04,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 17:39:04,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 17:39:04,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 17:39:04,821 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 17:39:04,822 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 17:39:04,822 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 17:39:04,822 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 17:39:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 17:39:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 17:39:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 17:39:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 17:39:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 17:39:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 17:39:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 17:39:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 17:39:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 17:39:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 17:39:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 17:39:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 17:39:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 17:39:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 17:39:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 17:39:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 17:39:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 17:39:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 17:39:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 17:39:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 17:39:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 17:39:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 17:39:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 17:39:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 17:39:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-23 17:39:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 17:39:04,826 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 17:39:04,826 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 17:39:04,826 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 17:39:04,826 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 17:39:04,826 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 17:39:04,827 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 17:39:04,827 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 17:39:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 17:39:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 17:39:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 17:39:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 17:39:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 17:39:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 17:39:04,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 17:39:04,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 17:39:04,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 17:39:04,830 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 17:39:04,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 17:39:04,831 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 17:39:04,831 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 17:39:04,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 17:39:04,832 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 17:39:04,832 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 17:39:04,832 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 17:39:04,832 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 17:39:04,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 17:39:04,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 17:39:04,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 17:39:06,153 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 17:39:06,153 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 17:39:06,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 05:39:06 BoogieIcfgContainer [2020-10-23 17:39:06,156 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 17:39:06,158 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 17:39:06,158 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 17:39:06,162 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 17:39:06,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 05:39:03" (1/3) ... [2020-10-23 17:39:06,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e7e6385 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 05:39:06, skipping insertion in model container [2020-10-23 17:39:06,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:39:04" (2/3) ... [2020-10-23 17:39:06,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e7e6385 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 05:39:06, skipping insertion in model container [2020-10-23 17:39:06,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 05:39:06" (3/3) ... [2020-10-23 17:39:06,166 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product23.cil.c [2020-10-23 17:39:06,179 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 17:39:06,186 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 17:39:06,201 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 17:39:06,236 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 17:39:06,236 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 17:39:06,236 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 17:39:06,236 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 17:39:06,236 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 17:39:06,237 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 17:39:06,237 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 17:39:06,237 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 17:39:06,261 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states. [2020-10-23 17:39:06,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-23 17:39:06,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:39:06,273 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] [2020-10-23 17:39:06,274 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:39:06,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:39:06,281 INFO L82 PathProgramCache]: Analyzing trace with hash 759501166, now seen corresponding path program 1 times [2020-10-23 17:39:06,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:39:06,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512742357] [2020-10-23 17:39:06,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:39:06,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:07,072 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 17:39:07,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:39:07,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:07,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:39:07,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:07,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 17:39:07,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:07,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 17:39:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:07,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-23 17:39:07,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:07,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-23 17:39:07,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:07,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-23 17:39:07,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:07,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-23 17:39:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:07,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 17:39:07,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512742357] [2020-10-23 17:39:07,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 17:39:07,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 17:39:07,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123398078] [2020-10-23 17:39:07,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 17:39:07,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:39:07,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 17:39:07,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 17:39:07,218 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 3 states. [2020-10-23 17:39:08,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:39:08,724 INFO L93 Difference]: Finished difference Result 310 states and 409 transitions. [2020-10-23 17:39:08,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 17:39:08,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-10-23 17:39:08,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:39:08,741 INFO L225 Difference]: With dead ends: 310 [2020-10-23 17:39:08,741 INFO L226 Difference]: Without dead ends: 166 [2020-10-23 17:39:08,747 INFO L677 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 [2020-10-23 17:39:08,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-10-23 17:39:08,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 132. [2020-10-23 17:39:08,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-23 17:39:08,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 157 transitions. [2020-10-23 17:39:08,855 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 157 transitions. Word has length 53 [2020-10-23 17:39:08,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:39:08,856 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 157 transitions. [2020-10-23 17:39:08,856 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 17:39:08,856 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 157 transitions. [2020-10-23 17:39:08,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-23 17:39:08,860 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:39:08,860 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] [2020-10-23 17:39:08,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 17:39:08,861 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:39:08,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:39:08,862 INFO L82 PathProgramCache]: Analyzing trace with hash 378539688, now seen corresponding path program 1 times [2020-10-23 17:39:08,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:39:08,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542748052] [2020-10-23 17:39:08,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:39:08,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:09,370 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 17:39:09,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:39:09,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:09,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:39:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:09,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 17:39:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:09,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 17:39:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:09,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-23 17:39:09,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:09,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-23 17:39:09,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:09,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-23 17:39:09,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:09,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-23 17:39:09,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:09,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 17:39:09,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542748052] [2020-10-23 17:39:09,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 17:39:09,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 17:39:09,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065893366] [2020-10-23 17:39:09,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 17:39:09,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:39:09,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 17:39:09,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 17:39:09,476 INFO L87 Difference]: Start difference. First operand 132 states and 157 transitions. Second operand 4 states. [2020-10-23 17:39:10,240 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 17:39:11,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:39:11,364 INFO L93 Difference]: Finished difference Result 234 states and 288 transitions. [2020-10-23 17:39:11,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 17:39:11,365 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-10-23 17:39:11,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:39:11,369 INFO L225 Difference]: With dead ends: 234 [2020-10-23 17:39:11,369 INFO L226 Difference]: Without dead ends: 150 [2020-10-23 17:39:11,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 17:39:11,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-23 17:39:11,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 123. [2020-10-23 17:39:11,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-23 17:39:11,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 145 transitions. [2020-10-23 17:39:11,450 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 145 transitions. Word has length 54 [2020-10-23 17:39:11,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:39:11,451 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 145 transitions. [2020-10-23 17:39:11,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 17:39:11,452 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 145 transitions. [2020-10-23 17:39:11,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-23 17:39:11,464 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:39:11,464 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] [2020-10-23 17:39:11,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 17:39:11,465 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:39:11,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:39:11,466 INFO L82 PathProgramCache]: Analyzing trace with hash 695537737, now seen corresponding path program 1 times [2020-10-23 17:39:11,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:39:11,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705922790] [2020-10-23 17:39:11,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:39:11,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:11,947 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 17:39:11,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:39:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:12,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:39:12,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:12,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 17:39:12,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:12,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 17:39:12,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:12,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-23 17:39:12,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:12,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-23 17:39:12,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:12,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-23 17:39:12,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:12,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-23 17:39:12,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:12,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 17:39:12,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705922790] [2020-10-23 17:39:12,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 17:39:12,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 17:39:12,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831239012] [2020-10-23 17:39:12,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 17:39:12,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:39:12,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 17:39:12,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-23 17:39:12,103 INFO L87 Difference]: Start difference. First operand 123 states and 145 transitions. Second operand 8 states. [2020-10-23 17:39:12,683 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 17:39:13,148 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:39:13,606 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:39:14,017 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:39:15,084 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 17:39:17,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:39:17,453 INFO L93 Difference]: Finished difference Result 428 states and 535 transitions. [2020-10-23 17:39:17,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 17:39:17,454 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-10-23 17:39:17,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:39:17,461 INFO L225 Difference]: With dead ends: 428 [2020-10-23 17:39:17,461 INFO L226 Difference]: Without dead ends: 329 [2020-10-23 17:39:17,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-23 17:39:17,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2020-10-23 17:39:17,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 269. [2020-10-23 17:39:17,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2020-10-23 17:39:17,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 328 transitions. [2020-10-23 17:39:17,617 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 328 transitions. Word has length 58 [2020-10-23 17:39:17,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:39:17,618 INFO L481 AbstractCegarLoop]: Abstraction has 269 states and 328 transitions. [2020-10-23 17:39:17,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 17:39:17,619 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 328 transitions. [2020-10-23 17:39:17,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-23 17:39:17,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:39:17,622 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] [2020-10-23 17:39:17,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 17:39:17,623 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:39:17,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:39:17,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1800378511, now seen corresponding path program 1 times [2020-10-23 17:39:17,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:39:17,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985277832] [2020-10-23 17:39:17,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:39:17,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:18,079 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 17:39:18,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:39:18,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:18,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:39:18,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:18,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 17:39:18,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:18,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 17:39:18,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:18,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-23 17:39:18,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:18,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-23 17:39:18,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:18,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-23 17:39:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:18,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-23 17:39:18,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:18,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-23 17:39:18,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:39:18,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 17:39:18,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985277832] [2020-10-23 17:39:18,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 17:39:18,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 17:39:18,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39133447] [2020-10-23 17:39:18,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 17:39:18,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:39:18,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 17:39:18,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-23 17:39:18,213 INFO L87 Difference]: Start difference. First operand 269 states and 328 transitions. Second operand 8 states. [2020-10-23 17:39:18,783 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 17:39:20,708 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:39:21,265 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:39:21,705 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:39:22,119 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 17:39:23,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:39:23,099 INFO L93 Difference]: Finished difference Result 826 states and 1087 transitions. [2020-10-23 17:39:23,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 17:39:23,100 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2020-10-23 17:39:23,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:39:23,105 INFO L225 Difference]: With dead ends: 826 [2020-10-23 17:39:23,106 INFO L226 Difference]: Without dead ends: 581 [2020-10-23 17:39:23,109 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-23 17:39:23,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2020-10-23 17:39:23,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 514. [2020-10-23 17:39:23,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2020-10-23 17:39:23,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 642 transitions. [2020-10-23 17:39:23,318 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 642 transitions. Word has length 64 [2020-10-23 17:39:23,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:39:23,319 INFO L481 AbstractCegarLoop]: Abstraction has 514 states and 642 transitions. [2020-10-23 17:39:23,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 17:39:23,319 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 642 transitions. [2020-10-23 17:39:23,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-23 17:39:23,322 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:39:23,323 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] [2020-10-23 17:39:23,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 17:39:23,323 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:39:23,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:39:23,324 INFO L82 PathProgramCache]: Analyzing trace with hash -162380503, now seen corresponding path program 1 times [2020-10-23 17:39:23,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:39:23,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484671408] [2020-10-23 17:39:23,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:39:23,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 17:39:23,390 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 17:39:23,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 17:39:23,452 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 17:39:23,534 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-23 17:39:23,534 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 17:39:23,535 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 17:39:23,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 05:39:23 BoogieIcfgContainer [2020-10-23 17:39:23,674 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 17:39:23,676 INFO L168 Benchmark]: Toolchain (without parser) took 19773.51 ms. Allocated memory was 160.4 MB in the beginning and 337.6 MB in the end (delta: 177.2 MB). Free memory was 115.0 MB in the beginning and 239.9 MB in the end (delta: -124.9 MB). Peak memory consumption was 53.4 MB. Max. memory is 8.0 GB. [2020-10-23 17:39:23,677 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 160.4 MB. Free memory is still 132.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 17:39:23,681 INFO L168 Benchmark]: CACSL2BoogieTranslator took 657.29 ms. Allocated memory is still 160.4 MB. Free memory was 114.4 MB in the beginning and 135.0 MB in the end (delta: -20.6 MB). Peak memory consumption was 18.0 MB. Max. memory is 8.0 GB. [2020-10-23 17:39:23,681 INFO L168 Benchmark]: Boogie Preprocessor took 153.18 ms. Allocated memory is still 160.4 MB. Free memory was 134.7 MB in the beginning and 130.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 17:39:23,683 INFO L168 Benchmark]: RCFGBuilder took 1435.87 ms. Allocated memory was 160.4 MB in the beginning and 192.9 MB in the end (delta: 32.5 MB). Free memory was 130.8 MB in the beginning and 120.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 45.1 MB. Max. memory is 8.0 GB. [2020-10-23 17:39:23,685 INFO L168 Benchmark]: TraceAbstraction took 17516.39 ms. Allocated memory was 192.9 MB in the beginning and 337.6 MB in the end (delta: 144.7 MB). Free memory was 119.6 MB in the beginning and 239.9 MB in the end (delta: -120.4 MB). Peak memory consumption was 24.9 MB. Max. memory is 8.0 GB. [2020-10-23 17:39:23,690 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 160.4 MB. Free memory is still 132.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 657.29 ms. Allocated memory is still 160.4 MB. Free memory was 114.4 MB in the beginning and 135.0 MB in the end (delta: -20.6 MB). Peak memory consumption was 18.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 153.18 ms. Allocated memory is still 160.4 MB. Free memory was 134.7 MB in the beginning and 130.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1435.87 ms. Allocated memory was 160.4 MB in the beginning and 192.9 MB in the end (delta: 32.5 MB). Free memory was 130.8 MB in the beginning and 120.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 45.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 17516.39 ms. Allocated memory was 192.9 MB in the beginning and 337.6 MB in the end (delta: 144.7 MB). Free memory was 119.6 MB in the beginning and 239.9 MB in the end (delta: -120.4 MB). Peak memory consumption was 24.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L179] int pumpRunning = 0; [L180] int systemActive = 1; [L440] int cleanupTimeShifts = 4; [L717] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=176, \old(head)=169, \old(head)=182, \old(methaneLevelCritical)=152, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=148, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L516] int retValue_acc ; [L517] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L521] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L522] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L523] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L940] int retValue_acc ; [L943] retValue_acc = 1 [L944] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L523] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L523] tmp = valid_product() [L525] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L527] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L528] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L507] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L374] int splverifierCounter ; [L375] int tmp ; [L376] int tmp___0 ; [L377] int tmp___1 ; [L378] int tmp___2 ; [L381] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L383] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L385] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L391] tmp = __VERIFIER_nondet_int() [L393] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L395] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L395] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L401] tmp___0 = __VERIFIER_nondet_int() [L403] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, waterLevel=2] [L411] tmp___2 = __VERIFIER_nondet_int() [L413] COND FALSE !(\read(tmp___2)) [L417] tmp___1 = __VERIFIER_nondet_int() [L419] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=-2, tmp___2=0, waterLevel=2] [L421] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L360] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L367] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L421] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=-1, tmp___0=0, tmp___1=-2, tmp___2=0, waterLevel=2] [L428] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L186] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L193] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L201] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L141] int tmp ; [L142] int tmp___0 ; [L143] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L147] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L147] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L147] tmp = isMethaneLevelCritical() [L149] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L153] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L153] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L153] tmp___0 = getWaterLevel() [L155] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L157] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L293] int retValue_acc ; [L296] retValue_acc = pumpRunning [L297] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L157] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L157] tmp___1 = isPumpRunning() [L159] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L163] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L543] CALL reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product23.cil.c", 3, "reach_error") VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 245 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 13.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 500 SDtfs, 796 SDslu, 350 SDs, 0 SdLazy, 1927 SolverSat, 498 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=514occurred 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: 0.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 188 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 297 NumberOfCodeBlocks, 297 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 66901 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...