/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy CAMEL_NO_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 21:00:08,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 21:00:08,454 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 21:00:08,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 21:00:08,466 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 21:00:08,467 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 21:00:08,469 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 21:00:08,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 21:00:08,472 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 21:00:08,473 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 21:00:08,474 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 21:00:08,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 21:00:08,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 21:00:08,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 21:00:08,477 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 21:00:08,478 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 21:00:08,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 21:00:08,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 21:00:08,482 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 21:00:08,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 21:00:08,485 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 21:00:08,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 21:00:08,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 21:00:08,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 21:00:08,491 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-19 21:00:08,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-19 21:00:08,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-19 21:00:08,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-19 21:00:08,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-19 21:00:08,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-19 21:00:08,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 21:00:08,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 21:00:08,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 21:00:08,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 21:00:08,497 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 21:00:08,497 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 21:00:08,498 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 21:00:08,498 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 21:00:08,498 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 21:00:08,499 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 21:00:08,500 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 21:00:08,500 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 [2020-07-19 21:00:08,515 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 21:00:08,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 21:00:08,516 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 21:00:08,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 21:00:08,517 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 21:00:08,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 21:00:08,517 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 21:00:08,517 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 21:00:08,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 21:00:08,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 21:00:08,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 21:00:08,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 21:00:08,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 21:00:08,518 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 21:00:08,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 21:00:08,519 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 21:00:08,519 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 21:00:08,519 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 21:00:08,520 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 21:00:08,520 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 21:00:08,520 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 21:00:08,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 21:00:08,520 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 21:00:08,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 21:00:08,521 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 21:00:08,521 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 21:00:08,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 21:00:08,521 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 21:00:08,522 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 21:00:08,522 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_NO_AM [2020-07-19 21:00:08,812 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 21:00:08,827 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 21:00:08,831 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 21:00:08,833 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 21:00:08,833 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 21:00:08,834 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product31.cil.c [2020-07-19 21:00:08,911 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10bbd1f2e/05401f548c1a4aa293b8f08ec3817bc5/FLAG5771019cd [2020-07-19 21:00:09,457 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 21:00:09,458 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product31.cil.c [2020-07-19 21:00:09,475 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10bbd1f2e/05401f548c1a4aa293b8f08ec3817bc5/FLAG5771019cd [2020-07-19 21:00:09,756 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10bbd1f2e/05401f548c1a4aa293b8f08ec3817bc5 [2020-07-19 21:00:09,765 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 21:00:09,768 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 21:00:09,769 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 21:00:09,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 21:00:09,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 21:00:09,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:00:09" (1/1) ... [2020-07-19 21:00:09,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cdf09ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:09, skipping insertion in model container [2020-07-19 21:00:09,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:00:09" (1/1) ... [2020-07-19 21:00:09,783 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 21:00:09,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 21:00:10,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:00:10,178 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 21:00:10,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:00:10,427 INFO L208 MainTranslator]: Completed translation [2020-07-19 21:00:10,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:10 WrapperNode [2020-07-19 21:00:10,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 21:00:10,429 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 21:00:10,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 21:00:10,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 21:00:10,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:10" (1/1) ... [2020-07-19 21:00:10,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:10" (1/1) ... [2020-07-19 21:00:10,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:10" (1/1) ... [2020-07-19 21:00:10,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:10" (1/1) ... [2020-07-19 21:00:10,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:10" (1/1) ... [2020-07-19 21:00:10,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:10" (1/1) ... [2020-07-19 21:00:10,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:10" (1/1) ... [2020-07-19 21:00:10,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 21:00:10,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 21:00:10,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 21:00:10,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 21:00:10,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:10" (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 [2020-07-19 21:00:10,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 21:00:10,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 21:00:10,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-19 21:00:10,579 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-19 21:00:10,579 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-19 21:00:10,579 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-19 21:00:10,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-19 21:00:10,580 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-19 21:00:10,580 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-19 21:00:10,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-19 21:00:10,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-19 21:00:10,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-19 21:00:10,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-19 21:00:10,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-19 21:00:10,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-19 21:00:10,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-19 21:00:10,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-19 21:00:10,581 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-19 21:00:10,581 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-19 21:00:10,582 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-19 21:00:10,582 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-19 21:00:10,582 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-19 21:00:10,582 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-07-19 21:00:10,582 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-19 21:00:10,582 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-19 21:00:10,582 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-19 21:00:10,583 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-19 21:00:10,583 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-19 21:00:10,583 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-19 21:00:10,583 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-19 21:00:10,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-19 21:00:10,583 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-19 21:00:10,584 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-19 21:00:10,584 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-19 21:00:10,584 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-19 21:00:10,584 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-19 21:00:10,584 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-19 21:00:10,584 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-19 21:00:10,584 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-19 21:00:10,585 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 21:00:10,585 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 21:00:10,585 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 21:00:10,585 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-19 21:00:10,585 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-19 21:00:10,585 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-19 21:00:10,585 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-19 21:00:10,586 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-19 21:00:10,586 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-19 21:00:10,586 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-19 21:00:10,586 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-19 21:00:10,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-19 21:00:10,586 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-19 21:00:10,586 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-19 21:00:10,586 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-19 21:00:10,586 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-19 21:00:10,586 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-19 21:00:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-19 21:00:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-19 21:00:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 21:00:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-19 21:00:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-19 21:00:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 21:00:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-19 21:00:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-19 21:00:10,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 21:00:10,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-19 21:00:10,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-19 21:00:10,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-19 21:00:10,588 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-19 21:00:10,588 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-19 21:00:10,588 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-19 21:00:10,588 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-19 21:00:10,589 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-19 21:00:10,589 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-19 21:00:10,589 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-19 21:00:10,589 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-19 21:00:10,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-19 21:00:10,589 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-19 21:00:10,589 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-19 21:00:10,589 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-19 21:00:10,589 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-19 21:00:10,590 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-19 21:00:10,590 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-07-19 21:00:10,590 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-19 21:00:10,590 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-19 21:00:10,590 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-19 21:00:10,590 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-19 21:00:10,591 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-19 21:00:10,591 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-19 21:00:10,591 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-19 21:00:10,591 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 21:00:10,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 21:00:10,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-19 21:00:10,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 21:00:11,717 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 21:00:11,718 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-19 21:00:11,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:00:11 BoogieIcfgContainer [2020-07-19 21:00:11,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 21:00:11,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 21:00:11,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 21:00:11,731 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 21:00:11,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 09:00:09" (1/3) ... [2020-07-19 21:00:11,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13021d21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:00:11, skipping insertion in model container [2020-07-19 21:00:11,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:00:10" (2/3) ... [2020-07-19 21:00:11,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13021d21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:00:11, skipping insertion in model container [2020-07-19 21:00:11,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:00:11" (3/3) ... [2020-07-19 21:00:11,735 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product31.cil.c [2020-07-19 21:00:11,746 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 21:00:11,756 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 21:00:11,768 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 21:00:11,788 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 21:00:11,789 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 21:00:11,789 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 21:00:11,789 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 21:00:11,789 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 21:00:11,790 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 21:00:11,790 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 21:00:11,790 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 21:00:11,813 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2020-07-19 21:00:11,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-19 21:00:11,823 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:00:11,825 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] [2020-07-19 21:00:11,825 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:00:11,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:00:11,831 INFO L82 PathProgramCache]: Analyzing trace with hash -2139663592, now seen corresponding path program 1 times [2020-07-19 21:00:11,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:00:11,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106499794] [2020-07-19 21:00:11,840 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5d8d66ed [2020-07-19 21:00:12,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:12,522 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:00:12,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:12,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:12,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:12,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:12,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:12,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:12,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:12,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:12,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:00:12,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106499794] [2020-07-19 21:00:12,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:00:12,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-19 21:00:12,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768420985] [2020-07-19 21:00:12,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 21:00:12,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:00:12,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 21:00:12,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 21:00:12,630 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 3 states. [2020-07-19 21:00:13,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:00:13,852 INFO L93 Difference]: Finished difference Result 305 states and 403 transitions. [2020-07-19 21:00:13,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 21:00:13,854 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-19 21:00:13,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:00:13,880 INFO L225 Difference]: With dead ends: 305 [2020-07-19 21:00:13,880 INFO L226 Difference]: Without dead ends: 165 [2020-07-19 21:00:13,889 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 [2020-07-19 21:00:13,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-07-19 21:00:13,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 131. [2020-07-19 21:00:13,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-07-19 21:00:13,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 156 transitions. [2020-07-19 21:00:13,984 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 156 transitions. Word has length 52 [2020-07-19 21:00:13,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:00:13,984 INFO L479 AbstractCegarLoop]: Abstraction has 131 states and 156 transitions. [2020-07-19 21:00:13,984 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 21:00:13,985 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 156 transitions. [2020-07-19 21:00:13,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-19 21:00:13,988 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:00:13,989 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] [2020-07-19 21:00:13,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 21:00:13,989 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:00:13,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:00:13,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1114338562, now seen corresponding path program 1 times [2020-07-19 21:00:13,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:00:13,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384601659] [2020-07-19 21:00:13,991 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5d8d66ed [2020-07-19 21:00:14,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:14,322 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:00:14,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:14,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:14,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:14,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:14,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:14,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:14,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:00:14,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384601659] [2020-07-19 21:00:14,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:00:14,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 21:00:14,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839041987] [2020-07-19 21:00:14,372 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-19 21:00:14,372 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:00:14,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-19 21:00:14,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-19 21:00:14,373 INFO L87 Difference]: Start difference. First operand 131 states and 156 transitions. Second operand 4 states. [2020-07-19 21:00:14,802 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 21:00:15,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:00:15,697 INFO L93 Difference]: Finished difference Result 232 states and 286 transitions. [2020-07-19 21:00:15,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-19 21:00:15,697 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-07-19 21:00:15,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:00:15,700 INFO L225 Difference]: With dead ends: 232 [2020-07-19 21:00:15,700 INFO L226 Difference]: Without dead ends: 149 [2020-07-19 21:00:15,702 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 [2020-07-19 21:00:15,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-07-19 21:00:15,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 122. [2020-07-19 21:00:15,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-07-19 21:00:15,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 144 transitions. [2020-07-19 21:00:15,738 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 144 transitions. Word has length 53 [2020-07-19 21:00:15,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:00:15,739 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 144 transitions. [2020-07-19 21:00:15,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-19 21:00:15,739 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 144 transitions. [2020-07-19 21:00:15,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-19 21:00:15,742 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:00:15,742 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] [2020-07-19 21:00:15,742 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 21:00:15,742 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:00:15,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:00:15,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1063304095, now seen corresponding path program 1 times [2020-07-19 21:00:15,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:00:15,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132173025] [2020-07-19 21:00:15,744 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5d8d66ed [2020-07-19 21:00:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:16,072 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:00:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:16,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:16,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:16,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:16,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:16,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:16,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:16,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:00:16,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132173025] [2020-07-19 21:00:16,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:00:16,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 21:00:16,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097348684] [2020-07-19 21:00:16,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 21:00:16,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:00:16,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 21:00:16,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-19 21:00:16,146 INFO L87 Difference]: Start difference. First operand 122 states and 144 transitions. Second operand 8 states. [2020-07-19 21:00:16,545 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:00:16,841 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:00:17,121 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:00:17,354 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:00:18,042 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 21:00:19,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:00:19,866 INFO L93 Difference]: Finished difference Result 424 states and 531 transitions. [2020-07-19 21:00:19,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-19 21:00:19,873 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-07-19 21:00:19,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:00:19,880 INFO L225 Difference]: With dead ends: 424 [2020-07-19 21:00:19,880 INFO L226 Difference]: Without dead ends: 326 [2020-07-19 21:00:19,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-19 21:00:19,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-07-19 21:00:19,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 268. [2020-07-19 21:00:19,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-07-19 21:00:19,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 327 transitions. [2020-07-19 21:00:19,961 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 327 transitions. Word has length 57 [2020-07-19 21:00:19,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:00:19,961 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 327 transitions. [2020-07-19 21:00:19,961 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 21:00:19,962 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 327 transitions. [2020-07-19 21:00:19,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-19 21:00:19,965 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:00:19,965 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] [2020-07-19 21:00:19,965 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-19 21:00:19,965 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:00:19,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:00:19,966 INFO L82 PathProgramCache]: Analyzing trace with hash 248297521, now seen corresponding path program 1 times [2020-07-19 21:00:19,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:00:19,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004046364] [2020-07-19 21:00:19,966 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5d8d66ed [2020-07-19 21:00:19,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:20,277 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:00:20,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:20,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:20,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:20,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:20,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:20,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:20,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:20,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:00:20,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004046364] [2020-07-19 21:00:20,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:00:20,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 21:00:20,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937378914] [2020-07-19 21:00:20,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 21:00:20,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:00:20,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 21:00:20,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-19 21:00:20,394 INFO L87 Difference]: Start difference. First operand 268 states and 327 transitions. Second operand 8 states. [2020-07-19 21:00:20,805 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:00:22,137 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:00:22,498 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:00:22,762 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:00:23,046 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:00:23,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:00:23,757 INFO L93 Difference]: Finished difference Result 824 states and 1085 transitions. [2020-07-19 21:00:23,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-19 21:00:23,759 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-07-19 21:00:23,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:00:23,765 INFO L225 Difference]: With dead ends: 824 [2020-07-19 21:00:23,765 INFO L226 Difference]: Without dead ends: 580 [2020-07-19 21:00:23,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-07-19 21:00:23,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-07-19 21:00:23,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 513. [2020-07-19 21:00:23,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 513 states. [2020-07-19 21:00:23,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 641 transitions. [2020-07-19 21:00:23,891 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 641 transitions. Word has length 63 [2020-07-19 21:00:23,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:00:23,892 INFO L479 AbstractCegarLoop]: Abstraction has 513 states and 641 transitions. [2020-07-19 21:00:23,892 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 21:00:23,892 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 641 transitions. [2020-07-19 21:00:23,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-19 21:00:23,896 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:00:23,896 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] [2020-07-19 21:00:23,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 21:00:23,897 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:00:23,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:00:23,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1905140809, now seen corresponding path program 1 times [2020-07-19 21:00:23,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:00:23,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131534105] [2020-07-19 21:00:23,898 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5d8d66ed [2020-07-19 21:00:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:24,175 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:00:24,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:24,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:24,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:24,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:24,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:24,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:24,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:24,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:00:24,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:00:24,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131534105] [2020-07-19 21:00:24,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:00:24,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-19 21:00:24,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041552615] [2020-07-19 21:00:24,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 21:00:24,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:00:24,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 21:00:24,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-19 21:00:24,269 INFO L87 Difference]: Start difference. First operand 513 states and 641 transitions. Second operand 6 states. [2020-07-19 21:00:24,693 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:00:25,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:00:25,480 INFO L93 Difference]: Finished difference Result 845 states and 1092 transitions. [2020-07-19 21:00:25,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-19 21:00:25,481 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2020-07-19 21:00:25,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:00:25,484 INFO L225 Difference]: With dead ends: 845 [2020-07-19 21:00:25,484 INFO L226 Difference]: Without dead ends: 356 [2020-07-19 21:00:25,486 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-07-19 21:00:25,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2020-07-19 21:00:25,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 335. [2020-07-19 21:00:25,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-07-19 21:00:25,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 386 transitions. [2020-07-19 21:00:25,545 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 386 transitions. Word has length 67 [2020-07-19 21:00:25,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:00:25,545 INFO L479 AbstractCegarLoop]: Abstraction has 335 states and 386 transitions. [2020-07-19 21:00:25,546 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 21:00:25,546 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 386 transitions. [2020-07-19 21:00:25,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-19 21:00:25,547 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:00:25,547 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] [2020-07-19 21:00:25,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-19 21:00:25,548 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:00:25,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:00:25,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1719041065, now seen corresponding path program 1 times [2020-07-19 21:00:25,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:00:25,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033326020] [2020-07-19 21:00:25,549 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5d8d66ed [2020-07-19 21:00:25,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 21:00:25,602 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 21:00:25,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 21:00:25,674 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 21:00:25,767 INFO L174 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2020-07-19 21:00:25,768 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 21:00:25,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-19 21:00:25,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 09:00:25 BoogieIcfgContainer [2020-07-19 21:00:25,923 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 21:00:25,926 INFO L168 Benchmark]: Toolchain (without parser) took 16157.78 ms. Allocated memory was 144.7 MB in the beginning and 470.3 MB in the end (delta: 325.6 MB). Free memory was 101.2 MB in the beginning and 194.7 MB in the end (delta: -93.6 MB). Peak memory consumption was 232.0 MB. Max. memory is 7.1 GB. [2020-07-19 21:00:25,928 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 144.7 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-19 21:00:25,931 INFO L168 Benchmark]: CACSL2BoogieTranslator took 659.40 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 100.8 MB in the beginning and 172.7 MB in the end (delta: -71.9 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2020-07-19 21:00:25,932 INFO L168 Benchmark]: Boogie Preprocessor took 86.13 ms. Allocated memory is still 202.9 MB. Free memory was 172.7 MB in the beginning and 168.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-19 21:00:25,934 INFO L168 Benchmark]: RCFGBuilder took 1211.60 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 168.5 MB in the beginning and 196.8 MB in the end (delta: -28.3 MB). Peak memory consumption was 86.8 MB. Max. memory is 7.1 GB. [2020-07-19 21:00:25,935 INFO L168 Benchmark]: TraceAbstraction took 14195.41 ms. Allocated memory was 234.9 MB in the beginning and 470.3 MB in the end (delta: 235.4 MB). Free memory was 196.8 MB in the beginning and 194.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 237.5 MB. Max. memory is 7.1 GB. [2020-07-19 21:00:25,942 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 144.7 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 659.40 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 100.8 MB in the beginning and 172.7 MB in the end (delta: -71.9 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 86.13 ms. Allocated memory is still 202.9 MB. Free memory was 172.7 MB in the beginning and 168.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1211.60 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 168.5 MB in the beginning and 196.8 MB in the end (delta: -28.3 MB). Peak memory consumption was 86.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14195.41 ms. Allocated memory was 234.9 MB in the beginning and 470.3 MB in the end (delta: 235.4 MB). Free memory was 196.8 MB in the beginning and 194.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 237.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 140]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L314] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L585] int pumpRunning = 0; [L586] int systemActive = 1; [L868] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=164, \old(methaneLevelCritical)=141, \old(pumpRunning)=129, \old(systemActive)=128, \old(waterLevel)=136, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L941] int retValue_acc ; [L942] 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] [L946] 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] [L947] 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] [L948] 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] [L859] int retValue_acc ; [L862] retValue_acc = 1 [L863] 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] [L948] 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] [L948] tmp = valid_product() [L950] 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] [L952] 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] [L953] 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] [L935] 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] [L515] int splverifierCounter ; [L516] int tmp ; [L517] int tmp___0 ; [L518] int tmp___1 ; [L519] int tmp___2 ; [L522] 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] [L524] 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] [L526] 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] [L532] tmp = __VERIFIER_nondet_int() [L534] 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] [L536] 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] [L65] COND TRUE waterLevel < 2 [L66] 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] [L536] 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] [L542] tmp___0 = __VERIFIER_nondet_int() [L544] 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] [L552] tmp___2 = __VERIFIER_nondet_int() [L554] COND FALSE !(\read(tmp___2)) [L558] tmp___1 = __VERIFIER_nondet_int() [L560] 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=1, tmp___2=0, waterLevel=2] [L562] 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] [L784] 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] [L791] 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] [L562] 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=1, tmp___2=0, waterLevel=2] [L569] 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] [L593] 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] [L600] 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] [L608] 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] [L797] int tmp ; [L798] int tmp___0 ; [L799] 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] [L803] 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] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] 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] [L803] 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] [L803] tmp = isMethaneLevelCritical() [L805] 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] [L809] 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] [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] 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] [L809] 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] [L809] tmp___0 = getWaterLevel() [L811] 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] [L813] 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] [L717] int retValue_acc ; [L720] retValue_acc = pumpRunning [L721] 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] [L813] 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] [L813] tmp___1 = isPumpRunning() [L815] 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] [L819] 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] [L140] __VERIFIER_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, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 10.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 558 SDtfs, 882 SDslu, 395 SDs, 0 SdLazy, 2087 SolverSat, 543 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=513occurred 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: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 207 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 359 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 287 ConstructedInterpolants, 0 QuantifiedInterpolants, 82182 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...