/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.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 22:50:15,530 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 22:50:15,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 22:50:15,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 22:50:15,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 22:50:15,545 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 22:50:15,547 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 22:50:15,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 22:50:15,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 22:50:15,551 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 22:50:15,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 22:50:15,553 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 22:50:15,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 22:50:15,554 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 22:50:15,555 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 22:50:15,557 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 22:50:15,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 22:50:15,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 22:50:15,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 22:50:15,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 22:50:15,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 22:50:15,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 22:50:15,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 22:50:15,570 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 22:50:15,575 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-19 22:50:15,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-19 22:50:15,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-19 22:50:15,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-19 22:50:15,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-19 22:50:15,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-19 22:50:15,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 22:50:15,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 22:50:15,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 22:50:15,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 22:50:15,586 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 22:50:15,586 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 22:50:15,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 22:50:15,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 22:50:15,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 22:50:15,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 22:50:15,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 22:50:15,592 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 22:50:15,614 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 22:50:15,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 22:50:15,616 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 22:50:15,616 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 22:50:15,617 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 22:50:15,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 22:50:15,617 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 22:50:15,617 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 22:50:15,617 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 22:50:15,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 22:50:15,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 22:50:15,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 22:50:15,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 22:50:15,619 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 22:50:15,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 22:50:15,620 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 22:50:15,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 22:50:15,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 22:50:15,620 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 22:50:15,621 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 22:50:15,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 22:50:15,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 22:50:15,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 22:50:15,621 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 22:50:15,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 22:50:15,622 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 22:50:15,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 22:50:15,622 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 22:50:15,622 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 22:50:15,622 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-19 22:50:15,898 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 22:50:15,914 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 22:50:15,918 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 22:50:15,920 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 22:50:15,921 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 22:50:15,921 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c [2020-07-19 22:50:15,986 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9b1e5756/93762b932c444ea8ab92e2eba30566c8/FLAG5157e9334 [2020-07-19 22:50:16,517 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 22:50:16,518 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c [2020-07-19 22:50:16,536 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9b1e5756/93762b932c444ea8ab92e2eba30566c8/FLAG5157e9334 [2020-07-19 22:50:16,866 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9b1e5756/93762b932c444ea8ab92e2eba30566c8 [2020-07-19 22:50:16,876 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 22:50:16,880 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 22:50:16,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 22:50:16,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 22:50:16,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 22:50:16,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:50:16" (1/1) ... [2020-07-19 22:50:16,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a39229e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:50:16, skipping insertion in model container [2020-07-19 22:50:16,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:50:16" (1/1) ... [2020-07-19 22:50:16,896 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 22:50:16,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 22:50:17,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 22:50:17,359 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 22:50:17,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 22:50:17,484 INFO L208 MainTranslator]: Completed translation [2020-07-19 22:50:17,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:50:17 WrapperNode [2020-07-19 22:50:17,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 22:50:17,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 22:50:17,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 22:50:17,491 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 22:50:17,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:50:17" (1/1) ... [2020-07-19 22:50:17,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:50:17" (1/1) ... [2020-07-19 22:50:17,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:50:17" (1/1) ... [2020-07-19 22:50:17,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:50:17" (1/1) ... [2020-07-19 22:50:17,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:50:17" (1/1) ... [2020-07-19 22:50:17,581 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:50:17" (1/1) ... [2020-07-19 22:50:17,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:50:17" (1/1) ... [2020-07-19 22:50:17,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 22:50:17,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 22:50:17,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 22:50:17,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 22:50:17,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:50:17" (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 22:50:17,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 22:50:17,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 22:50:17,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-19 22:50:17,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-19 22:50:17,695 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-19 22:50:17,695 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-19 22:50:17,696 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-19 22:50:17,696 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-19 22:50:17,697 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-19 22:50:17,697 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-19 22:50:17,697 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-19 22:50:17,698 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-19 22:50:17,699 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-19 22:50:17,699 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-19 22:50:17,699 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-19 22:50:17,700 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-19 22:50:17,700 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-19 22:50:17,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-19 22:50:17,701 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-19 22:50:17,701 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-19 22:50:17,701 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-19 22:50:17,701 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-19 22:50:17,701 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 22:50:17,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-19 22:50:17,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-19 22:50:17,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-19 22:50:17,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-19 22:50:17,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-19 22:50:17,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-19 22:50:17,704 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-19 22:50:17,704 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-19 22:50:17,704 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-19 22:50:17,705 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-19 22:50:17,705 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-19 22:50:17,705 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-19 22:50:17,705 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-19 22:50:17,705 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-19 22:50:17,706 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-19 22:50:17,706 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-19 22:50:17,706 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-19 22:50:17,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 22:50:17,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 22:50:17,707 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-19 22:50:17,707 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-19 22:50:17,707 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-19 22:50:17,707 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-19 22:50:17,707 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-19 22:50:17,708 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-19 22:50:17,708 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-19 22:50:17,708 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-19 22:50:17,709 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-19 22:50:17,709 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-19 22:50:17,709 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-19 22:50:17,709 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-19 22:50:17,709 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-19 22:50:17,709 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-19 22:50:17,710 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-19 22:50:17,710 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-19 22:50:17,710 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-19 22:50:17,710 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-19 22:50:17,711 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-19 22:50:17,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-19 22:50:17,711 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-19 22:50:17,712 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-19 22:50:17,712 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-19 22:50:17,712 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-19 22:50:17,712 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-19 22:50:17,712 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-19 22:50:17,712 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-19 22:50:17,712 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-19 22:50:17,713 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-19 22:50:17,713 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-19 22:50:17,714 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-19 22:50:17,714 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 22:50:17,714 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-19 22:50:17,714 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-19 22:50:17,715 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-19 22:50:17,715 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-19 22:50:17,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-19 22:50:17,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-19 22:50:17,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 22:50:17,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-19 22:50:17,718 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-19 22:50:17,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 22:50:17,719 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-19 22:50:17,719 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-19 22:50:17,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 22:50:17,719 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-19 22:50:17,720 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-19 22:50:17,720 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-19 22:50:17,720 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-19 22:50:17,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 22:50:17,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-19 22:50:17,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 22:50:18,810 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 22:50:18,810 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-19 22:50:18,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:50:18 BoogieIcfgContainer [2020-07-19 22:50:18,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 22:50:18,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 22:50:18,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 22:50:18,821 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 22:50:18,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 10:50:16" (1/3) ... [2020-07-19 22:50:18,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50afb6c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:50:18, skipping insertion in model container [2020-07-19 22:50:18,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:50:17" (2/3) ... [2020-07-19 22:50:18,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50afb6c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:50:18, skipping insertion in model container [2020-07-19 22:50:18,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:50:18" (3/3) ... [2020-07-19 22:50:18,824 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product24.cil.c [2020-07-19 22:50:18,835 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 22:50:18,843 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 22:50:18,857 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 22:50:18,884 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 22:50:18,884 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 22:50:18,884 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 22:50:18,884 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 22:50:18,885 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 22:50:18,885 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 22:50:18,885 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 22:50:18,885 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 22:50:18,909 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states. [2020-07-19 22:50:18,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-19 22:50:18,920 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:50:18,921 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 22:50:18,921 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:50:18,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:50:18,928 INFO L82 PathProgramCache]: Analyzing trace with hash -586231627, now seen corresponding path program 1 times [2020-07-19 22:50:18,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:50:18,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302394888] [2020-07-19 22:50:18,938 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@38b1610b [2020-07-19 22:50:19,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:19,540 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:50:19,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:19,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:19,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:19,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:19,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:19,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:19,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:19,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:19,627 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 22:50:19,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302394888] [2020-07-19 22:50:19,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:50:19,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-19 22:50:19,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198028400] [2020-07-19 22:50:19,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 22:50:19,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:50:19,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 22:50:19,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 22:50:19,655 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 3 states. [2020-07-19 22:50:20,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:50:20,909 INFO L93 Difference]: Finished difference Result 314 states and 413 transitions. [2020-07-19 22:50:20,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 22:50:20,912 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-19 22:50:20,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:50:20,930 INFO L225 Difference]: With dead ends: 314 [2020-07-19 22:50:20,931 INFO L226 Difference]: Without dead ends: 170 [2020-07-19 22:50:20,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 22:50:20,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-07-19 22:50:21,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 135. [2020-07-19 22:50:21,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-07-19 22:50:21,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 160 transitions. [2020-07-19 22:50:21,079 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 160 transitions. Word has length 52 [2020-07-19 22:50:21,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:50:21,080 INFO L479 AbstractCegarLoop]: Abstraction has 135 states and 160 transitions. [2020-07-19 22:50:21,080 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 22:50:21,081 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 160 transitions. [2020-07-19 22:50:21,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-19 22:50:21,093 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:50:21,094 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 22:50:21,095 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 22:50:21,095 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:50:21,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:50:21,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1405243585, now seen corresponding path program 1 times [2020-07-19 22:50:21,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:50:21,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529758208] [2020-07-19 22:50:21,097 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@38b1610b [2020-07-19 22:50:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:21,491 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:50:21,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:21,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:21,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:21,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:21,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:21,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:21,535 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 22:50:21,536 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529758208] [2020-07-19 22:50:21,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:50:21,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 22:50:21,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041995305] [2020-07-19 22:50:21,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-19 22:50:21,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:50:21,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-19 22:50:21,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-19 22:50:21,539 INFO L87 Difference]: Start difference. First operand 135 states and 160 transitions. Second operand 4 states. [2020-07-19 22:50:21,962 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:50:22,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:50:22,766 INFO L93 Difference]: Finished difference Result 237 states and 292 transitions. [2020-07-19 22:50:22,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-19 22:50:22,767 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-07-19 22:50:22,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:50:22,771 INFO L225 Difference]: With dead ends: 237 [2020-07-19 22:50:22,771 INFO L226 Difference]: Without dead ends: 154 [2020-07-19 22:50:22,773 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 22:50:22,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-07-19 22:50:22,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 126. [2020-07-19 22:50:22,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-07-19 22:50:22,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 148 transitions. [2020-07-19 22:50:22,812 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 148 transitions. Word has length 53 [2020-07-19 22:50:22,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:50:22,812 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 148 transitions. [2020-07-19 22:50:22,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-19 22:50:22,813 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 148 transitions. [2020-07-19 22:50:22,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-19 22:50:22,815 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:50:22,815 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:50:22,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 22:50:22,815 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:50:22,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:50:22,816 INFO L82 PathProgramCache]: Analyzing trace with hash 340068721, now seen corresponding path program 1 times [2020-07-19 22:50:22,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:50:22,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332819635] [2020-07-19 22:50:22,817 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@38b1610b [2020-07-19 22:50:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:23,139 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:50:23,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:23,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:23,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:23,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:23,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:23,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:23,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:23,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:23,240 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 22:50:23,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332819635] [2020-07-19 22:50:23,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:50:23,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 22:50:23,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549647119] [2020-07-19 22:50:23,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 22:50:23,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:50:23,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 22:50:23,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-19 22:50:23,244 INFO L87 Difference]: Start difference. First operand 126 states and 148 transitions. Second operand 8 states. [2020-07-19 22:50:23,601 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:50:23,898 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:50:24,158 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:50:24,381 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:50:25,080 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:50:26,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:50:26,993 INFO L93 Difference]: Finished difference Result 439 states and 548 transitions. [2020-07-19 22:50:26,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-19 22:50:26,994 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-07-19 22:50:26,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:50:27,001 INFO L225 Difference]: With dead ends: 439 [2020-07-19 22:50:27,001 INFO L226 Difference]: Without dead ends: 337 [2020-07-19 22:50:27,006 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-19 22:50:27,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-07-19 22:50:27,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 272. [2020-07-19 22:50:27,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-07-19 22:50:27,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 331 transitions. [2020-07-19 22:50:27,085 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 331 transitions. Word has length 58 [2020-07-19 22:50:27,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:50:27,085 INFO L479 AbstractCegarLoop]: Abstraction has 272 states and 331 transitions. [2020-07-19 22:50:27,086 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 22:50:27,086 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 331 transitions. [2020-07-19 22:50:27,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-19 22:50:27,087 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:50:27,088 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 22:50:27,088 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-19 22:50:27,088 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:50:27,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:50:27,089 INFO L82 PathProgramCache]: Analyzing trace with hash -805179876, now seen corresponding path program 1 times [2020-07-19 22:50:27,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:50:27,089 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736442442] [2020-07-19 22:50:27,089 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@38b1610b [2020-07-19 22:50:27,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:27,376 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:50:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:27,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:27,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:27,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:27,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:27,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:27,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:27,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:27,516 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 22:50:27,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736442442] [2020-07-19 22:50:27,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:50:27,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 22:50:27,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286445741] [2020-07-19 22:50:27,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 22:50:27,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:50:27,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 22:50:27,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-19 22:50:27,520 INFO L87 Difference]: Start difference. First operand 272 states and 331 transitions. Second operand 8 states. [2020-07-19 22:50:27,955 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:50:29,332 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:50:29,683 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:50:29,988 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:50:30,253 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:50:31,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:50:31,034 INFO L93 Difference]: Finished difference Result 839 states and 1103 transitions. [2020-07-19 22:50:31,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-19 22:50:31,035 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-07-19 22:50:31,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:50:31,043 INFO L225 Difference]: With dead ends: 839 [2020-07-19 22:50:31,043 INFO L226 Difference]: Without dead ends: 591 [2020-07-19 22:50:31,045 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 22:50:31,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2020-07-19 22:50:31,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 521. [2020-07-19 22:50:31,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 521 states. [2020-07-19 22:50:31,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 649 transitions. [2020-07-19 22:50:31,171 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 649 transitions. Word has length 63 [2020-07-19 22:50:31,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:50:31,171 INFO L479 AbstractCegarLoop]: Abstraction has 521 states and 649 transitions. [2020-07-19 22:50:31,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 22:50:31,172 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 649 transitions. [2020-07-19 22:50:31,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-19 22:50:31,175 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:50:31,175 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 22:50:31,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 22:50:31,175 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:50:31,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:50:31,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1401738146, now seen corresponding path program 1 times [2020-07-19 22:50:31,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:50:31,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510460359] [2020-07-19 22:50:31,177 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@38b1610b [2020-07-19 22:50:31,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:31,477 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:50:31,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:31,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:31,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:31,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:31,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:31,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:31,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:31,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:31,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:31,580 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 22:50:31,580 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510460359] [2020-07-19 22:50:31,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:50:31,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-19 22:50:31,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453881305] [2020-07-19 22:50:31,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 22:50:31,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:50:31,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 22:50:31,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-19 22:50:31,582 INFO L87 Difference]: Start difference. First operand 521 states and 649 transitions. Second operand 6 states. [2020-07-19 22:50:31,938 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:50:32,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:50:32,814 INFO L93 Difference]: Finished difference Result 890 states and 1163 transitions. [2020-07-19 22:50:32,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-19 22:50:32,814 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2020-07-19 22:50:32,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:50:32,819 INFO L225 Difference]: With dead ends: 890 [2020-07-19 22:50:32,819 INFO L226 Difference]: Without dead ends: 393 [2020-07-19 22:50:32,821 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 22:50:32,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2020-07-19 22:50:32,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 343. [2020-07-19 22:50:32,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2020-07-19 22:50:32,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 394 transitions. [2020-07-19 22:50:32,891 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 394 transitions. Word has length 67 [2020-07-19 22:50:32,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:50:32,891 INFO L479 AbstractCegarLoop]: Abstraction has 343 states and 394 transitions. [2020-07-19 22:50:32,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 22:50:32,892 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 394 transitions. [2020-07-19 22:50:32,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-19 22:50:32,893 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:50:32,893 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 22:50:32,894 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-19 22:50:32,894 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:50:32,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:50:32,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1293290686, now seen corresponding path program 1 times [2020-07-19 22:50:32,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:50:32,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729345184] [2020-07-19 22:50:32,895 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@38b1610b [2020-07-19 22:50:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 22:50:32,938 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 22:50:32,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 22:50:32,977 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 22:50:33,076 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-19 22:50:33,076 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 22:50:33,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-19 22:50:33,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 10:50:33 BoogieIcfgContainer [2020-07-19 22:50:33,264 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 22:50:33,267 INFO L168 Benchmark]: Toolchain (without parser) took 16388.21 ms. Allocated memory was 138.4 MB in the beginning and 490.2 MB in the end (delta: 351.8 MB). Free memory was 100.4 MB in the beginning and 163.2 MB in the end (delta: -62.8 MB). Peak memory consumption was 289.0 MB. Max. memory is 7.1 GB. [2020-07-19 22:50:33,267 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-19 22:50:33,268 INFO L168 Benchmark]: CACSL2BoogieTranslator took 604.35 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 100.2 MB in the beginning and 171.4 MB in the end (delta: -71.2 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2020-07-19 22:50:33,269 INFO L168 Benchmark]: Boogie Preprocessor took 103.61 ms. Allocated memory is still 203.4 MB. Free memory was 171.4 MB in the beginning and 166.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-07-19 22:50:33,270 INFO L168 Benchmark]: RCFGBuilder took 1221.37 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 166.7 MB in the beginning and 196.7 MB in the end (delta: -30.0 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2020-07-19 22:50:33,271 INFO L168 Benchmark]: TraceAbstraction took 14447.53 ms. Allocated memory was 235.9 MB in the beginning and 490.2 MB in the end (delta: 254.3 MB). Free memory was 195.3 MB in the beginning and 163.2 MB in the end (delta: 32.0 MB). Peak memory consumption was 286.3 MB. Max. memory is 7.1 GB. [2020-07-19 22:50:33,274 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 604.35 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 100.2 MB in the beginning and 171.4 MB in the end (delta: -71.2 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.61 ms. Allocated memory is still 203.4 MB. Free memory was 171.4 MB in the beginning and 166.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1221.37 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 166.7 MB in the beginning and 196.7 MB in the end (delta: -30.0 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14447.53 ms. Allocated memory was 235.9 MB in the beginning and 490.2 MB in the end (delta: 254.3 MB). Free memory was 195.3 MB in the beginning and 163.2 MB in the end (delta: 32.0 MB). Peak memory consumption was 286.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L60] int pumpRunning = 0; [L61] int systemActive = 1; [L369] int cleanupTimeShifts = 4; [L637] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L834] int waterLevel = 1; [L835] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=173, \old(head)=166, \old(head)=176, \old(methaneLevelCritical)=147, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L445] int retValue_acc ; [L446] 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] [L450] 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] [L451] 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] [L452] 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] [L949] int retValue_acc ; [L952] retValue_acc = 1 [L953] 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] [L452] 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] [L452] tmp = valid_product() [L454] 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] [L456] 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] [L457] 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] [L436] 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] [L266] int splverifierCounter ; [L267] int tmp ; [L268] int tmp___0 ; [L269] int tmp___1 ; [L270] int tmp___2 ; [L273] 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] [L275] 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] [L277] 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] [L283] tmp = __VERIFIER_nondet_int() [L285] 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] [L287] 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] [L852] COND TRUE waterLevel < 2 [L853] 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] [L287] 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] [L293] tmp___0 = __VERIFIER_nondet_int() [L295] 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] [L303] tmp___2 = __VERIFIER_nondet_int() [L305] COND FALSE !(\read(tmp___2)) [L311] tmp___1 = __VERIFIER_nondet_int() [L313] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=-2, tmp___2=0, waterLevel=2] [L315] 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] [L242] 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] [L249] 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] [L315] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=-1, tmp___0=0, tmp___1=-2, tmp___2=0, waterLevel=2] [L322] 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] [L68] 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] [L75] 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] [L83] 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] [L336] int tmp ; [L337] int tmp___0 ; [L338] 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] [L342] 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] [L873] int retValue_acc ; [L876] retValue_acc = methaneLevelCritical [L877] 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] [L342] 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] [L342] tmp = isMethaneLevelCritical() [L344] 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] [L348] 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] [L905] int retValue_acc ; [L908] retValue_acc = waterLevel [L909] 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] [L348] 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] [L348] tmp___0 = getWaterLevel() [L350] 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] [L352] 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] [L175] int retValue_acc ; [L178] retValue_acc = pumpRunning [L179] 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] [L352] 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] [L352] tmp___1 = isPumpRunning() [L354] 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] [L358] 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] [L44] __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, 237 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 11.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 593 SDtfs, 897 SDslu, 441 SDs, 0 SdLazy, 2178 SolverSat, 577 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.6s 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=521occurred 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, 5 MinimizatonAttempts, 248 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 360 NumberOfCodeBlocks, 360 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 82716 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...