/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_VARIABLES --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_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 00:59:44,451 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 00:59:44,454 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 00:59:44,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 00:59:44,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 00:59:44,473 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 00:59:44,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 00:59:44,486 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 00:59:44,489 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 00:59:44,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 00:59:44,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 00:59:44,496 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 00:59:44,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 00:59:44,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 00:59:44,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 00:59:44,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 00:59:44,503 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 00:59:44,504 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 00:59:44,506 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 00:59:44,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 00:59:44,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 00:59:44,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 00:59:44,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 00:59:44,521 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 00:59:44,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 00:59:44,524 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 00:59:44,524 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 00:59:44,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 00:59:44,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 00:59:44,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 00:59:44,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 00:59:44,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 00:59:44,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 00:59:44,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 00:59:44,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 00:59:44,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 00:59:44,534 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 00:59:44,534 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 00:59:44,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 00:59:44,535 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 00:59:44,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 00:59:44,539 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 [2020-07-20 00:59:44,574 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 00:59:44,576 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 00:59:44,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 00:59:44,578 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 00:59:44,578 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 00:59:44,578 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 00:59:44,578 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 00:59:44,579 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 00:59:44,579 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 00:59:44,579 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 00:59:44,579 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 00:59:44,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 00:59:44,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 00:59:44,583 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 00:59:44,583 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 00:59:44,583 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 00:59:44,583 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 00:59:44,583 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 00:59:44,584 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 00:59:44,584 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 00:59:44,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 00:59:44,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 00:59:44,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 00:59:44,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 00:59:44,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 00:59:44,587 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 00:59:44,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 00:59:44,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 00:59:44,588 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 00:59:44,588 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_VARIABLES 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 [2020-07-20 00:59:44,860 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 00:59:44,873 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 00:59:44,876 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 00:59:44,878 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 00:59:44,878 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 00:59:44,879 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c [2020-07-20 00:59:44,940 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68bf7a77e/0f0438aad4ba478cab528a543bd68607/FLAG032035897 [2020-07-20 00:59:45,508 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 00:59:45,509 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c [2020-07-20 00:59:45,539 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68bf7a77e/0f0438aad4ba478cab528a543bd68607/FLAG032035897 [2020-07-20 00:59:45,853 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68bf7a77e/0f0438aad4ba478cab528a543bd68607 [2020-07-20 00:59:45,861 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 00:59:45,864 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 00:59:45,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 00:59:45,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 00:59:45,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 00:59:45,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:59:45" (1/1) ... [2020-07-20 00:59:45,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ddff197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:59:45, skipping insertion in model container [2020-07-20 00:59:45,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:59:45" (1/1) ... [2020-07-20 00:59:45,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 00:59:45,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 00:59:46,365 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 00:59:46,381 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 00:59:46,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 00:59:46,498 INFO L208 MainTranslator]: Completed translation [2020-07-20 00:59:46,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:59:46 WrapperNode [2020-07-20 00:59:46,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 00:59:46,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 00:59:46,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 00:59:46,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 00:59:46,513 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:59:46" (1/1) ... [2020-07-20 00:59:46,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:59:46" (1/1) ... [2020-07-20 00:59:46,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:59:46" (1/1) ... [2020-07-20 00:59:46,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:59:46" (1/1) ... [2020-07-20 00:59:46,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:59:46" (1/1) ... [2020-07-20 00:59:46,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:59:46" (1/1) ... [2020-07-20 00:59:46,585 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:59:46" (1/1) ... [2020-07-20 00:59:46,603 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 00:59:46,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 00:59:46,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 00:59:46,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 00:59:46,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:59:46" (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 [2020-07-20 00:59:46,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 00:59:46,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 00:59:46,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 00:59:46,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 00:59:46,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 00:59:46,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 00:59:46,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 00:59:46,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 00:59:46,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 00:59:46,702 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 00:59:46,702 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 00:59:46,703 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 00:59:46,704 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 00:59:46,704 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 00:59:46,704 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 00:59:46,705 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 00:59:46,705 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-20 00:59:46,705 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 00:59:46,705 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 00:59:46,705 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 00:59:46,705 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 00:59:46,706 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 00:59:46,706 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 00:59:46,706 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 00:59:46,706 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 00:59:46,707 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 00:59:46,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-20 00:59:46,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 00:59:46,708 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 00:59:46,708 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 00:59:46,708 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 00:59:46,708 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 00:59:46,709 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 00:59:46,709 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-07-20 00:59:46,709 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 00:59:46,709 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 00:59:46,709 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 00:59:46,710 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 00:59:46,710 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 00:59:46,710 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 00:59:46,710 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-20 00:59:46,710 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-20 00:59:46,711 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 00:59:46,711 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 00:59:46,711 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 00:59:46,711 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 00:59:46,711 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 00:59:46,711 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 00:59:46,712 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 00:59:46,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 00:59:46,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 00:59:46,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 00:59:46,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 00:59:46,712 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 00:59:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 00:59:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 00:59:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 00:59:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 00:59:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 00:59:46,714 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 00:59:46,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 00:59:46,715 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 00:59:46,715 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 00:59:46,715 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 00:59:46,715 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 00:59:46,715 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 00:59:46,715 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 00:59:46,715 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 00:59:46,716 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 00:59:46,716 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-20 00:59:46,716 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 00:59:46,716 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 00:59:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 00:59:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 00:59:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 00:59:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 00:59:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 00:59:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 00:59:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 00:59:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 00:59:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 00:59:46,720 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 00:59:46,721 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 00:59:46,721 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 00:59:46,721 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-20 00:59:46,721 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-20 00:59:46,721 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 00:59:46,722 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 00:59:46,722 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 00:59:46,723 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 00:59:46,723 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 00:59:46,723 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 00:59:46,723 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-20 00:59:46,723 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-07-20 00:59:46,723 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 00:59:46,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 00:59:46,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 00:59:46,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 00:59:47,829 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 00:59:47,830 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 00:59:47,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:59:47 BoogieIcfgContainer [2020-07-20 00:59:47,835 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 00:59:47,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 00:59:47,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 00:59:47,840 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 00:59:47,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 12:59:45" (1/3) ... [2020-07-20 00:59:47,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b1be3f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:59:47, skipping insertion in model container [2020-07-20 00:59:47,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:59:46" (2/3) ... [2020-07-20 00:59:47,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b1be3f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:59:47, skipping insertion in model container [2020-07-20 00:59:47,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:59:47" (3/3) ... [2020-07-20 00:59:47,844 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product59.cil.c [2020-07-20 00:59:47,855 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 00:59:47,864 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 00:59:47,879 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 00:59:47,904 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 00:59:47,905 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 00:59:47,905 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 00:59:47,905 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 00:59:47,906 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 00:59:47,906 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 00:59:47,906 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 00:59:47,906 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 00:59:47,930 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states. [2020-07-20 00:59:47,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 00:59:47,942 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:59:47,943 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] [2020-07-20 00:59:47,943 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:59:47,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:59:47,950 INFO L82 PathProgramCache]: Analyzing trace with hash 2059475727, now seen corresponding path program 1 times [2020-07-20 00:59:47,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:59:47,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730253922] [2020-07-20 00:59:47,960 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@57288d36 [2020-07-20 00:59:48,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:48,647 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 00:59:48,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:48,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:48,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:48,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:48,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:48,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:48,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:48,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:59:48,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730253922] [2020-07-20 00:59:48,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:59:48,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 00:59:48,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73957252] [2020-07-20 00:59:48,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 00:59:48,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:59:48,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 00:59:48,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 00:59:48,790 INFO L87 Difference]: Start difference. First operand 195 states. Second operand 3 states. [2020-07-20 00:59:50,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:59:50,097 INFO L93 Difference]: Finished difference Result 349 states and 451 transitions. [2020-07-20 00:59:50,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 00:59:50,099 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-20 00:59:50,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:59:50,115 INFO L225 Difference]: With dead ends: 349 [2020-07-20 00:59:50,115 INFO L226 Difference]: Without dead ends: 188 [2020-07-20 00:59:50,120 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 [2020-07-20 00:59:50,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-07-20 00:59:50,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 152. [2020-07-20 00:59:50,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-07-20 00:59:50,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 179 transitions. [2020-07-20 00:59:50,230 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 179 transitions. Word has length 52 [2020-07-20 00:59:50,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:59:50,230 INFO L479 AbstractCegarLoop]: Abstraction has 152 states and 179 transitions. [2020-07-20 00:59:50,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 00:59:50,231 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 179 transitions. [2020-07-20 00:59:50,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-20 00:59:50,235 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:59:50,235 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] [2020-07-20 00:59:50,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 00:59:50,236 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:59:50,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:59:50,236 INFO L82 PathProgramCache]: Analyzing trace with hash 342362752, now seen corresponding path program 1 times [2020-07-20 00:59:50,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:59:50,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619745026] [2020-07-20 00:59:50,237 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@57288d36 [2020-07-20 00:59:50,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:50,544 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 00:59:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:50,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:50,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:50,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:59:50,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619745026] [2020-07-20 00:59:50,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:59:50,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 00:59:50,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188640645] [2020-07-20 00:59:50,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 00:59:50,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:59:50,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 00:59:50,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 00:59:50,639 INFO L87 Difference]: Start difference. First operand 152 states and 179 transitions. Second operand 4 states. [2020-07-20 00:59:51,065 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:59:52,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:59:52,021 INFO L93 Difference]: Finished difference Result 276 states and 334 transitions. [2020-07-20 00:59:52,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 00:59:52,022 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-07-20 00:59:52,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:59:52,026 INFO L225 Difference]: With dead ends: 276 [2020-07-20 00:59:52,026 INFO L226 Difference]: Without dead ends: 172 [2020-07-20 00:59:52,028 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 [2020-07-20 00:59:52,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-07-20 00:59:52,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 143. [2020-07-20 00:59:52,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-07-20 00:59:52,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 167 transitions. [2020-07-20 00:59:52,075 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 167 transitions. Word has length 53 [2020-07-20 00:59:52,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:59:52,076 INFO L479 AbstractCegarLoop]: Abstraction has 143 states and 167 transitions. [2020-07-20 00:59:52,076 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 00:59:52,076 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 167 transitions. [2020-07-20 00:59:52,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-20 00:59:52,079 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:59:52,079 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] [2020-07-20 00:59:52,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-20 00:59:52,080 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:59:52,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:59:52,080 INFO L82 PathProgramCache]: Analyzing trace with hash -970398275, now seen corresponding path program 1 times [2020-07-20 00:59:52,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:59:52,081 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191556306] [2020-07-20 00:59:52,081 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@57288d36 [2020-07-20 00:59:52,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:52,393 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 00:59:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:52,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:52,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:52,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:52,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:52,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:52,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:52,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:52,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:59:52,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191556306] [2020-07-20 00:59:52,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:59:52,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 00:59:52,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559014843] [2020-07-20 00:59:52,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 00:59:52,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:59:52,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 00:59:52,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-20 00:59:52,472 INFO L87 Difference]: Start difference. First operand 143 states and 167 transitions. Second operand 8 states. [2020-07-20 00:59:52,904 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-20 00:59:53,235 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:59:53,472 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:59:53,694 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:59:54,404 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:59:56,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:59:56,496 INFO L93 Difference]: Finished difference Result 491 states and 604 transitions. [2020-07-20 00:59:56,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 00:59:56,496 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-07-20 00:59:56,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:59:56,506 INFO L225 Difference]: With dead ends: 491 [2020-07-20 00:59:56,506 INFO L226 Difference]: Without dead ends: 372 [2020-07-20 00:59:56,508 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 [2020-07-20 00:59:56,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2020-07-20 00:59:56,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 310. [2020-07-20 00:59:56,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2020-07-20 00:59:56,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 373 transitions. [2020-07-20 00:59:56,590 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 373 transitions. Word has length 57 [2020-07-20 00:59:56,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:59:56,591 INFO L479 AbstractCegarLoop]: Abstraction has 310 states and 373 transitions. [2020-07-20 00:59:56,591 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 00:59:56,591 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 373 transitions. [2020-07-20 00:59:56,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-20 00:59:56,594 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:59:56,595 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] [2020-07-20 00:59:56,595 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-20 00:59:56,595 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:59:56,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:59:56,596 INFO L82 PathProgramCache]: Analyzing trace with hash -542420815, now seen corresponding path program 1 times [2020-07-20 00:59:56,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:59:56,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700249984] [2020-07-20 00:59:56,596 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@57288d36 [2020-07-20 00:59:56,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:56,871 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 00:59:56,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:56,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:56,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:56,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:59:56,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:59:56,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700249984] [2020-07-20 00:59:56,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:59:56,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 00:59:56,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967292993] [2020-07-20 00:59:56,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 00:59:56,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:59:56,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 00:59:56,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-20 00:59:56,951 INFO L87 Difference]: Start difference. First operand 310 states and 373 transitions. Second operand 8 states. [2020-07-20 00:59:57,331 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-20 00:59:58,689 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:59:59,069 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:59:59,327 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:59:59,571 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-20 01:00:00,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:00:00,530 INFO L93 Difference]: Finished difference Result 958 states and 1241 transitions. [2020-07-20 01:00:00,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-20 01:00:00,531 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-07-20 01:00:00,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:00:00,538 INFO L225 Difference]: With dead ends: 958 [2020-07-20 01:00:00,538 INFO L226 Difference]: Without dead ends: 672 [2020-07-20 01:00:00,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-07-20 01:00:00,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2020-07-20 01:00:00,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 601. [2020-07-20 01:00:00,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2020-07-20 01:00:00,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 735 transitions. [2020-07-20 01:00:00,665 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 735 transitions. Word has length 63 [2020-07-20 01:00:00,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:00:00,666 INFO L479 AbstractCegarLoop]: Abstraction has 601 states and 735 transitions. [2020-07-20 01:00:00,666 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 01:00:00,666 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 735 transitions. [2020-07-20 01:00:00,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-20 01:00:00,671 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:00:00,671 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] [2020-07-20 01:00:00,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-20 01:00:00,671 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:00:00,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:00:00,672 INFO L82 PathProgramCache]: Analyzing trace with hash -785539273, now seen corresponding path program 1 times [2020-07-20 01:00:00,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:00:00,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145245994] [2020-07-20 01:00:00,673 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@57288d36 [2020-07-20 01:00:00,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:00:00,919 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 01:00:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:00:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:00:00,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:00:00,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:00:00,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:00:00,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:00:01,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:00:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:00:01,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:00:01,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:00:01,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 01:00:01,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145245994] [2020-07-20 01:00:01,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 01:00:01,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 01:00:01,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921203100] [2020-07-20 01:00:01,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 01:00:01,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:00:01,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 01:00:01,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 01:00:01,040 INFO L87 Difference]: Start difference. First operand 601 states and 735 transitions. Second operand 6 states. [2020-07-20 01:00:01,477 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-20 01:00:03,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:00:03,403 INFO L93 Difference]: Finished difference Result 1408 states and 1818 transitions. [2020-07-20 01:00:03,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-20 01:00:03,404 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2020-07-20 01:00:03,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:00:03,412 INFO L225 Difference]: With dead ends: 1408 [2020-07-20 01:00:03,412 INFO L226 Difference]: Without dead ends: 831 [2020-07-20 01:00:03,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-20 01:00:03,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2020-07-20 01:00:03,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 761. [2020-07-20 01:00:03,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 761 states. [2020-07-20 01:00:03,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 924 transitions. [2020-07-20 01:00:03,605 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 924 transitions. Word has length 67 [2020-07-20 01:00:03,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:00:03,605 INFO L479 AbstractCegarLoop]: Abstraction has 761 states and 924 transitions. [2020-07-20 01:00:03,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 01:00:03,606 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 924 transitions. [2020-07-20 01:00:03,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-20 01:00:03,607 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:00:03,607 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] [2020-07-20 01:00:03,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-20 01:00:03,608 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:00:03,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:00:03,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1064344695, now seen corresponding path program 1 times [2020-07-20 01:00:03,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:00:03,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960292178] [2020-07-20 01:00:03,609 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@57288d36 [2020-07-20 01:00:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 01:00:03,659 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 01:00:03,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 01:00:03,699 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 01:00:03,786 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-20 01:00:03,786 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 01:00:03,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-20 01:00:03,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 01:00:03 BoogieIcfgContainer [2020-07-20 01:00:03,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 01:00:03,957 INFO L168 Benchmark]: Toolchain (without parser) took 18089.21 ms. Allocated memory was 146.3 MB in the beginning and 510.1 MB in the end (delta: 363.9 MB). Free memory was 101.8 MB in the beginning and 358.5 MB in the end (delta: -256.7 MB). Peak memory consumption was 107.2 MB. Max. memory is 7.1 GB. [2020-07-20 01:00:03,958 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 121.3 MB in the beginning and 121.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 01:00:03,962 INFO L168 Benchmark]: CACSL2BoogieTranslator took 633.98 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 101.4 MB in the beginning and 168.9 MB in the end (delta: -67.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-07-20 01:00:03,963 INFO L168 Benchmark]: Boogie Preprocessor took 104.46 ms. Allocated memory is still 203.9 MB. Free memory was 168.9 MB in the beginning and 164.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-07-20 01:00:03,964 INFO L168 Benchmark]: RCFGBuilder took 1231.68 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 164.2 MB in the beginning and 188.6 MB in the end (delta: -24.4 MB). Peak memory consumption was 78.8 MB. Max. memory is 7.1 GB. [2020-07-20 01:00:03,967 INFO L168 Benchmark]: TraceAbstraction took 16113.46 ms. Allocated memory was 235.9 MB in the beginning and 510.1 MB in the end (delta: 274.2 MB). Free memory was 187.2 MB in the beginning and 358.5 MB in the end (delta: -171.3 MB). Peak memory consumption was 102.9 MB. Max. memory is 7.1 GB. [2020-07-20 01:00:03,972 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 121.3 MB in the beginning and 121.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 633.98 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 101.4 MB in the beginning and 168.9 MB in the end (delta: -67.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.46 ms. Allocated memory is still 203.9 MB. Free memory was 168.9 MB in the beginning and 164.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1231.68 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 164.2 MB in the beginning and 188.6 MB in the end (delta: -24.4 MB). Peak memory consumption was 78.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16113.46 ms. Allocated memory was 235.9 MB in the beginning and 510.1 MB in the end (delta: 274.2 MB). Free memory was 187.2 MB in the beginning and 358.5 MB in the end (delta: -171.3 MB). Peak memory consumption was 102.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 694]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L414] int waterLevel = 1; [L415] int methaneLevelCritical = 0; [L517] int cleanupTimeShifts = 4; [L769] int pumpRunning = 0; [L770] int systemActive = 1; VAL [\old(cleanupTimeShifts)=170, \old(head)=176, \old(head)=162, \old(methaneLevelCritical)=147, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L596] int retValue_acc ; [L597] 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] [L601] 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] [L602] 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] [L603] 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] [L645] int retValue_acc ; [L648] retValue_acc = 1 [L649] 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] [L603] 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] [L603] tmp = valid_product() [L605] 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] [L607] 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] [L608] 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] [L587] 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] [L701] int splverifierCounter ; [L702] int tmp ; [L703] int tmp___0 ; [L704] int tmp___1 ; [L705] int tmp___2 ; [L708] 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] [L710] 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] [L712] 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] [L718] tmp = __VERIFIER_nondet_int() [L720] 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] [L722] 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] [L432] COND TRUE waterLevel < 2 [L433] 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] [L722] 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] [L728] tmp___0 = __VERIFIER_nondet_int() [L730] 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] [L738] tmp___2 = __VERIFIER_nondet_int() [L740] COND FALSE !(\read(tmp___2)) [L744] tmp___1 = __VERIFIER_nondet_int() [L746] 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] [L748] 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] [L987] 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] [L994] 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] [L748] 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] [L755] 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] [L776] 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] [L783] 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] [L791] 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] [L657] int tmp ; [L658] int tmp___0 ; [L659] 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] [L663] 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] [L453] int retValue_acc ; [L456] retValue_acc = methaneLevelCritical [L457] 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] [L663] 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] [L663] tmp = isMethaneLevelCritical() [L665] 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] [L669] 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] [L485] int retValue_acc ; [L488] retValue_acc = waterLevel [L489] 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] [L669] 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] [L669] tmp___0 = getWaterLevel() [L671] 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] [L673] 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] [L901] int retValue_acc ; [L904] retValue_acc = pumpRunning [L905] 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] [L673] 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] [L673] tmp___1 = isPumpRunning() [L675] 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] [L679] 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] [L694] __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 42 procedures, 251 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 12.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 693 SDtfs, 1225 SDslu, 422 SDs, 0 SdLazy, 2566 SolverSat, 749 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=761occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 268 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...