/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 18:04:26,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 18:04:26,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 18:04:26,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 18:04:26,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 18:04:26,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 18:04:26,522 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 18:04:26,524 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 18:04:26,526 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 18:04:26,526 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 18:04:26,527 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 18:04:26,528 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 18:04:26,529 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 18:04:26,530 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 18:04:26,531 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 18:04:26,532 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 18:04:26,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 18:04:26,536 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 18:04:26,538 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 18:04:26,539 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 18:04:26,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 18:04:26,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 18:04:26,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 18:04:26,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 18:04:26,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 18:04:26,548 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 18:04:26,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 18:04:26,549 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 18:04:26,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 18:04:26,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 18:04:26,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 18:04:26,555 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 18:04:26,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 18:04:26,558 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 18:04:26,559 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 18:04:26,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 18:04:26,560 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 18:04:26,560 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 18:04:26,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 18:04:26,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 18:04:26,562 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 18:04:26,563 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 18:04:26,584 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 18:04:26,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 18:04:26,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 18:04:26,588 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 18:04:26,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 18:04:26,588 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 18:04:26,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 18:04:26,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 18:04:26,589 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 18:04:26,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 18:04:26,589 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 18:04:26,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 18:04:26,589 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 18:04:26,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 18:04:26,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 18:04:26,590 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 18:04:26,590 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 18:04:26,590 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 18:04:26,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:04:26,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 18:04:26,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 18:04:26,591 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 18:04:26,591 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 18:04:26,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 18:04:26,908 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 18:04:26,911 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 18:04:26,913 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 18:04:26,913 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 18:04:26,914 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c [2020-08-22 18:04:26,975 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b244b500/6f8583519ead4917b06eb650c160421a/FLAG9e75a3e77 [2020-08-22 18:04:27,511 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 18:04:27,512 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c [2020-08-22 18:04:27,526 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b244b500/6f8583519ead4917b06eb650c160421a/FLAG9e75a3e77 [2020-08-22 18:04:27,988 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b244b500/6f8583519ead4917b06eb650c160421a [2020-08-22 18:04:27,996 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 18:04:27,998 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 18:04:27,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 18:04:27,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 18:04:28,003 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 18:04:28,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:04:27" (1/1) ... [2020-08-22 18:04:28,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1067e073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:28, skipping insertion in model container [2020-08-22 18:04:28,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:04:27" (1/1) ... [2020-08-22 18:04:28,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 18:04:28,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 18:04:28,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:04:28,536 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 18:04:28,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:04:28,650 INFO L208 MainTranslator]: Completed translation [2020-08-22 18:04:28,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:28 WrapperNode [2020-08-22 18:04:28,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 18:04:28,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 18:04:28,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 18:04:28,652 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 18:04:28,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:28" (1/1) ... [2020-08-22 18:04:28,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:28" (1/1) ... [2020-08-22 18:04:28,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:28" (1/1) ... [2020-08-22 18:04:28,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:28" (1/1) ... [2020-08-22 18:04:28,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:28" (1/1) ... [2020-08-22 18:04:28,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:28" (1/1) ... [2020-08-22 18:04:28,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:28" (1/1) ... [2020-08-22 18:04:28,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 18:04:28,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 18:04:28,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 18:04:28,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 18:04:28,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:28" (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 [2020-08-22 18:04:28,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 18:04:28,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 18:04:28,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 18:04:28,827 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 18:04:28,827 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 18:04:28,828 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 18:04:28,828 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 18:04:28,828 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 18:04:28,828 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 18:04:28,828 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 18:04:28,828 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 18:04:28,828 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 18:04:28,829 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 18:04:28,829 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 18:04:28,829 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-22 18:04:28,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 18:04:28,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 18:04:28,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 18:04:28,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 18:04:28,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 18:04:28,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 18:04:28,830 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 18:04:28,830 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 18:04:28,831 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 18:04:28,831 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 18:04:28,831 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 18:04:28,831 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 18:04:28,831 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 18:04:28,831 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 18:04:28,832 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-22 18:04:28,832 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-22 18:04:28,832 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 18:04:28,832 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 18:04:28,832 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 18:04:28,832 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 18:04:28,833 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 18:04:28,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-22 18:04:28,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 18:04:28,833 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 18:04:28,833 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 18:04:28,833 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 18:04:28,834 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 18:04:28,834 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 18:04:28,834 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 18:04:28,834 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 18:04:28,834 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 18:04:28,834 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 18:04:28,835 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 18:04:28,835 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 18:04:28,835 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 18:04:28,835 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 18:04:28,835 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 18:04:28,835 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 18:04:28,835 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 18:04:28,836 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 18:04:28,836 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 18:04:28,836 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 18:04:28,836 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 18:04:28,836 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-22 18:04:28,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 18:04:28,837 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 18:04:28,837 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 18:04:28,837 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 18:04:28,837 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 18:04:28,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 18:04:28,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 18:04:28,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 18:04:28,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 18:04:28,838 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 18:04:28,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 18:04:28,838 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 18:04:28,838 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 18:04:28,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 18:04:28,838 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 18:04:28,839 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 18:04:28,839 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 18:04:28,839 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 18:04:28,839 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 18:04:28,839 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 18:04:28,839 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-22 18:04:28,840 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-22 18:04:28,840 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 18:04:28,840 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 18:04:28,840 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-22 18:04:28,840 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 18:04:28,840 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 18:04:28,841 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 18:04:28,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 18:04:28,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 18:04:28,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 18:04:29,968 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 18:04:29,969 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 18:04:29,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:04:29 BoogieIcfgContainer [2020-08-22 18:04:29,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 18:04:29,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 18:04:29,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 18:04:29,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 18:04:29,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:04:27" (1/3) ... [2020-08-22 18:04:29,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@780bafdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:04:29, skipping insertion in model container [2020-08-22 18:04:29,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:28" (2/3) ... [2020-08-22 18:04:29,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@780bafdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:04:29, skipping insertion in model container [2020-08-22 18:04:29,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:04:29" (3/3) ... [2020-08-22 18:04:29,986 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product18.cil.c [2020-08-22 18:04:29,999 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 18:04:30,008 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 18:04:30,024 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 18:04:30,049 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 18:04:30,049 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 18:04:30,050 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 18:04:30,050 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 18:04:30,050 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 18:04:30,051 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 18:04:30,051 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 18:04:30,051 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 18:04:30,075 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states. [2020-08-22 18:04:30,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-22 18:04:30,098 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:04:30,100 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] [2020-08-22 18:04:30,100 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:04:30,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:04:30,108 INFO L82 PathProgramCache]: Analyzing trace with hash -255597227, now seen corresponding path program 1 times [2020-08-22 18:04:30,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:04:30,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [293509178] [2020-08-22 18:04:30,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:04:30,200 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:04:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:30,851 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:04:30,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:04:30,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:31,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:04:31,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:31,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:04:31,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:31,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:04:31,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:31,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:04:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:31,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:04:31,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:31,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 18:04:31,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:31,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-22 18:04:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:31,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:04:31,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [293509178] [2020-08-22 18:04:31,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:04:31,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:04:31,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500922380] [2020-08-22 18:04:31,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:04:31,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:04:31,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:04:31,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:04:31,121 INFO L87 Difference]: Start difference. First operand 296 states. Second operand 3 states. [2020-08-22 18:04:32,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:04:32,388 INFO L93 Difference]: Finished difference Result 444 states and 527 transitions. [2020-08-22 18:04:32,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:04:32,390 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-08-22 18:04:32,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:04:32,407 INFO L225 Difference]: With dead ends: 444 [2020-08-22 18:04:32,408 INFO L226 Difference]: Without dead ends: 279 [2020-08-22 18:04:32,413 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:04:32,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-08-22 18:04:32,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 239. [2020-08-22 18:04:32,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-08-22 18:04:32,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 257 transitions. [2020-08-22 18:04:32,535 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 257 transitions. Word has length 153 [2020-08-22 18:04:32,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:04:32,536 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 257 transitions. [2020-08-22 18:04:32,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:04:32,537 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 257 transitions. [2020-08-22 18:04:32,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-08-22 18:04:32,541 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:04:32,541 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] [2020-08-22 18:04:32,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 18:04:32,542 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:04:32,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:04:32,543 INFO L82 PathProgramCache]: Analyzing trace with hash 73238065, now seen corresponding path program 1 times [2020-08-22 18:04:32,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:04:32,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [718255427] [2020-08-22 18:04:32,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:04:32,546 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:04:32,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:32,873 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:04:32,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:04:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:32,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:04:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:32,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:04:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:32,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:04:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:32,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:04:32,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:32,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 18:04:32,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:32,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-22 18:04:32,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:32,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-22 18:04:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:32,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:04:32,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [718255427] [2020-08-22 18:04:32,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:04:32,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 18:04:32,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925147328] [2020-08-22 18:04:32,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 18:04:32,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:04:32,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 18:04:32,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 18:04:32,989 INFO L87 Difference]: Start difference. First operand 239 states and 257 transitions. Second operand 4 states. [2020-08-22 18:04:33,582 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:04:34,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:04:34,350 INFO L93 Difference]: Finished difference Result 357 states and 398 transitions. [2020-08-22 18:04:34,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 18:04:34,356 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-08-22 18:04:34,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:04:34,361 INFO L225 Difference]: With dead ends: 357 [2020-08-22 18:04:34,361 INFO L226 Difference]: Without dead ends: 262 [2020-08-22 18:04:34,366 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 [2020-08-22 18:04:34,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-08-22 18:04:34,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 229. [2020-08-22 18:04:34,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-08-22 18:04:34,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 244 transitions. [2020-08-22 18:04:34,460 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 244 transitions. Word has length 154 [2020-08-22 18:04:34,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:04:34,460 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 244 transitions. [2020-08-22 18:04:34,461 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 18:04:34,461 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 244 transitions. [2020-08-22 18:04:34,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-08-22 18:04:34,464 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:04:34,464 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:04:34,464 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 18:04:34,465 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:04:34,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:04:34,465 INFO L82 PathProgramCache]: Analyzing trace with hash 304341534, now seen corresponding path program 1 times [2020-08-22 18:04:34,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:04:34,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [540729] [2020-08-22 18:04:34,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:04:34,469 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:04:34,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:34,807 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:04:34,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:04:34,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:34,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:04:34,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:34,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:04:34,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:34,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:04:34,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:34,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:04:34,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:34,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-22 18:04:34,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:34,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 18:04:34,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:34,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-08-22 18:04:34,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:34,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-08-22 18:04:34,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:34,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:04:34,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [540729] [2020-08-22 18:04:34,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:04:34,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 18:04:34,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358414817] [2020-08-22 18:04:34,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 18:04:34,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:04:34,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 18:04:34,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 18:04:34,968 INFO L87 Difference]: Start difference. First operand 229 states and 244 transitions. Second operand 10 states. [2020-08-22 18:04:35,545 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:04:35,982 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:04:36,218 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:04:36,452 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:04:36,724 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:04:36,967 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:04:38,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:04:38,460 INFO L93 Difference]: Finished difference Result 403 states and 460 transitions. [2020-08-22 18:04:38,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 18:04:38,461 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-08-22 18:04:38,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:04:38,465 INFO L225 Difference]: With dead ends: 403 [2020-08-22 18:04:38,465 INFO L226 Difference]: Without dead ends: 284 [2020-08-22 18:04:38,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-08-22 18:04:38,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-08-22 18:04:38,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 229. [2020-08-22 18:04:38,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-08-22 18:04:38,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 243 transitions. [2020-08-22 18:04:38,537 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 243 transitions. Word has length 167 [2020-08-22 18:04:38,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:04:38,537 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 243 transitions. [2020-08-22 18:04:38,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 18:04:38,538 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 243 transitions. [2020-08-22 18:04:38,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-08-22 18:04:38,540 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:04:38,540 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] [2020-08-22 18:04:38,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 18:04:38,541 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:04:38,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:04:38,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1214766301, now seen corresponding path program 1 times [2020-08-22 18:04:38,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:04:38,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1067243945] [2020-08-22 18:04:38,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:04:38,544 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:04:38,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:38,899 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:04:38,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:04:38,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:38,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:04:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:38,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:04:38,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:39,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:04:39,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:39,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:04:39,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:39,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-22 18:04:39,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:39,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 18:04:39,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:39,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:04:39,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:39,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-08-22 18:04:39,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:39,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-08-22 18:04:39,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:39,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-08-22 18:04:39,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:39,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:04:39,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1067243945] [2020-08-22 18:04:39,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:04:39,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 18:04:39,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955854999] [2020-08-22 18:04:39,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 18:04:39,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:04:39,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 18:04:39,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 18:04:39,117 INFO L87 Difference]: Start difference. First operand 229 states and 243 transitions. Second operand 10 states. [2020-08-22 18:04:39,655 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:04:41,367 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:04:41,644 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:04:41,960 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:04:42,240 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:04:42,506 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:04:42,837 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:04:43,092 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:04:43,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:04:43,732 INFO L93 Difference]: Finished difference Result 625 states and 767 transitions. [2020-08-22 18:04:43,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-08-22 18:04:43,733 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 175 [2020-08-22 18:04:43,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:04:43,743 INFO L225 Difference]: With dead ends: 625 [2020-08-22 18:04:43,743 INFO L226 Difference]: Without dead ends: 506 [2020-08-22 18:04:43,746 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2020-08-22 18:04:43,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2020-08-22 18:04:43,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 340. [2020-08-22 18:04:43,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-08-22 18:04:43,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 371 transitions. [2020-08-22 18:04:43,906 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 371 transitions. Word has length 175 [2020-08-22 18:04:43,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:04:43,907 INFO L479 AbstractCegarLoop]: Abstraction has 340 states and 371 transitions. [2020-08-22 18:04:43,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 18:04:43,907 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 371 transitions. [2020-08-22 18:04:43,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-08-22 18:04:43,910 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:04:43,910 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] [2020-08-22 18:04:43,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 18:04:43,910 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:04:43,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:04:43,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1778118102, now seen corresponding path program 1 times [2020-08-22 18:04:43,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:04:43,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1812285695] [2020-08-22 18:04:43,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:04:43,915 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:04:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:04:44,002 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:04:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:04:44,095 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:04:44,312 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 18:04:44,312 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 18:04:44,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 18:04:44,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:04:44 BoogieIcfgContainer [2020-08-22 18:04:44,342 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 18:04:44,344 INFO L168 Benchmark]: Toolchain (without parser) took 16346.33 ms. Allocated memory was 139.5 MB in the beginning and 546.8 MB in the end (delta: 407.4 MB). Free memory was 102.3 MB in the beginning and 479.0 MB in the end (delta: -376.6 MB). Peak memory consumption was 381.8 MB. Max. memory is 7.1 GB. [2020-08-22 18:04:44,345 INFO L168 Benchmark]: CDTParser took 0.18 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: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 18:04:44,346 INFO L168 Benchmark]: CACSL2BoogieTranslator took 652.22 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 102.1 MB in the beginning and 172.2 MB in the end (delta: -70.1 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2020-08-22 18:04:44,347 INFO L168 Benchmark]: Boogie Preprocessor took 96.02 ms. Allocated memory is still 203.9 MB. Free memory was 172.2 MB in the beginning and 168.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-08-22 18:04:44,348 INFO L168 Benchmark]: RCFGBuilder took 1228.46 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 168.1 MB in the beginning and 177.3 MB in the end (delta: -9.2 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. [2020-08-22 18:04:44,349 INFO L168 Benchmark]: TraceAbstraction took 14364.67 ms. Allocated memory was 237.0 MB in the beginning and 546.8 MB in the end (delta: 309.9 MB). Free memory was 177.3 MB in the beginning and 479.0 MB in the end (delta: -301.7 MB). Peak memory consumption was 359.3 MB. Max. memory is 7.1 GB. [2020-08-22 18:04:44,352 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 652.22 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 102.1 MB in the beginning and 172.2 MB in the end (delta: -70.1 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.02 ms. Allocated memory is still 203.9 MB. Free memory was 172.2 MB in the beginning and 168.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1228.46 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 168.1 MB in the beginning and 177.3 MB in the end (delta: -9.2 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14364.67 ms. Allocated memory was 237.0 MB in the beginning and 546.8 MB in the end (delta: 309.9 MB). Free memory was 177.3 MB in the beginning and 479.0 MB in the end (delta: -301.7 MB). Peak memory consumption was 359.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 910]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L149] int waterLevel = 1; [L150] int methaneLevelCritical = 0; [L407] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L608] int pumpRunning = 0; [L609] int systemActive = 1; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L862] int retValue_acc ; [L865] retValue_acc = 1 [L866] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L770] int splverifierCounter ; [L771] int tmp ; [L772] int tmp___0 ; [L773] int tmp___1 ; [L774] int tmp___2 ; [L777] splverifierCounter = 0 [L779] COND TRUE 1 [L781] COND TRUE splverifierCounter < 4 [L787] tmp = __VERIFIER_nondet_int() [L789] COND TRUE \read(tmp) [L791] CALL waterRise() [L167] COND TRUE waterLevel < 2 [L168] waterLevel = waterLevel + 1 [L791] RET waterRise() [L797] tmp___0 = __VERIFIER_nondet_int() [L799] COND FALSE !(\read(tmp___0)) [L807] tmp___2 = __VERIFIER_nondet_int() [L809] COND TRUE \read(tmp___2) [L811] CALL startSystem() [L764] systemActive = 1 [L811] RET startSystem() [L824] CALL timeShift() [L616] COND FALSE !(\read(pumpRunning)) [L623] COND TRUE \read(systemActive) [L625] CALL processEnvironment() [L645] int tmp ; [L648] COND FALSE !(\read(pumpRunning)) [L663] FCALL processEnvironment__wrappee__base() [L625] RET processEnvironment() [L631] CALL __utac_acc__Specification3_spec__1() [L873] int tmp ; [L874] int tmp___0 ; [L875] int tmp___1 ; [L879] CALL, EXPR isMethaneLevelCritical() [L188] int retValue_acc ; [L191] retValue_acc = methaneLevelCritical [L192] return (retValue_acc); [L879] RET, EXPR isMethaneLevelCritical() [L879] tmp = isMethaneLevelCritical() [L881] COND FALSE !(\read(tmp)) [L885] CALL, EXPR getWaterLevel() [L220] int retValue_acc ; [L223] retValue_acc = waterLevel [L224] return (retValue_acc); [L885] RET, EXPR getWaterLevel() [L885] tmp___0 = getWaterLevel() [L887] COND TRUE tmp___0 == 2 [L889] CALL, EXPR isPumpRunning() [L697] int retValue_acc ; [L700] retValue_acc = pumpRunning [L701] return (retValue_acc); [L889] RET, EXPR isPumpRunning() [L889] tmp___1 = isPumpRunning() [L891] COND FALSE !(\read(tmp___1)) [L895] CALL __automaton_fail() [L910] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 613 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 10.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 876 SDtfs, 1725 SDslu, 1277 SDs, 0 SdLazy, 2429 SolverSat, 595 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=340occurred 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, 294 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...