/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy CAMEL_NO_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 20:57:30,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 20:57:30,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 20:57:30,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 20:57:30,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 20:57:30,411 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 20:57:30,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 20:57:30,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 20:57:30,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 20:57:30,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 20:57:30,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 20:57:30,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 20:57:30,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 20:57:30,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 20:57:30,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 20:57:30,422 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 20:57:30,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 20:57:30,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 20:57:30,426 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 20:57:30,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 20:57:30,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 20:57:30,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 20:57:30,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 20:57:30,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 20:57:30,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-19 20:57:30,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-19 20:57:30,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-19 20:57:30,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-19 20:57:30,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-19 20:57:30,438 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-19 20:57:30,438 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 20:57:30,439 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 20:57:30,440 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 20:57:30,440 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 20:57:30,441 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 20:57:30,442 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 20:57:30,442 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 20:57:30,442 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 20:57:30,443 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 20:57:30,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 20:57:30,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 20:57:30,445 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 20:57:30,461 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 20:57:30,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 20:57:30,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 20:57:30,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 20:57:30,463 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 20:57:30,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 20:57:30,463 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 20:57:30,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 20:57:30,463 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 20:57:30,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 20:57:30,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 20:57:30,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 20:57:30,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 20:57:30,464 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 20:57:30,464 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 20:57:30,465 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 20:57:30,465 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 20:57:30,465 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 20:57:30,465 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 20:57:30,465 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 20:57:30,466 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 20:57:30,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 20:57:30,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 20:57:30,466 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 20:57:30,466 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 20:57:30,467 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 20:57:30,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 20:57:30,467 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 20:57:30,467 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 20:57:30,467 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_NO_AM [2020-07-19 20:57:30,776 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 20:57:30,796 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 20:57:30,801 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 20:57:30,803 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 20:57:30,804 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 20:57:30,804 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product36.cil.c [2020-07-19 20:57:30,882 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3398fbe48/f3e194475c63489db1b9df19537a92af/FLAGced7c12ab [2020-07-19 20:57:31,477 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 20:57:31,478 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product36.cil.c [2020-07-19 20:57:31,505 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3398fbe48/f3e194475c63489db1b9df19537a92af/FLAGced7c12ab [2020-07-19 20:57:31,730 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3398fbe48/f3e194475c63489db1b9df19537a92af [2020-07-19 20:57:31,738 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 20:57:31,740 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 20:57:31,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 20:57:31,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 20:57:31,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 20:57:31,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 08:57:31" (1/1) ... [2020-07-19 20:57:31,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6d448f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:31, skipping insertion in model container [2020-07-19 20:57:31,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 08:57:31" (1/1) ... [2020-07-19 20:57:31,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 20:57:31,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 20:57:32,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 20:57:32,253 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 20:57:32,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 20:57:32,380 INFO L208 MainTranslator]: Completed translation [2020-07-19 20:57:32,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:32 WrapperNode [2020-07-19 20:57:32,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 20:57:32,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 20:57:32,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 20:57:32,382 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 20:57:32,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:32" (1/1) ... [2020-07-19 20:57:32,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:32" (1/1) ... [2020-07-19 20:57:32,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:32" (1/1) ... [2020-07-19 20:57:32,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:32" (1/1) ... [2020-07-19 20:57:32,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:32" (1/1) ... [2020-07-19 20:57:32,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:32" (1/1) ... [2020-07-19 20:57:32,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:32" (1/1) ... [2020-07-19 20:57:32,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 20:57:32,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 20:57:32,496 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 20:57:32,496 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 20:57:32,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:32" (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 20:57:32,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 20:57:32,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 20:57:32,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-19 20:57:32,576 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-19 20:57:32,576 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-19 20:57:32,576 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-19 20:57:32,576 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-19 20:57:32,576 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-19 20:57:32,576 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-19 20:57:32,577 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-19 20:57:32,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-19 20:57:32,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-19 20:57:32,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-19 20:57:32,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-19 20:57:32,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-19 20:57:32,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-19 20:57:32,580 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-19 20:57:32,580 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-19 20:57:32,580 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-19 20:57:32,580 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-19 20:57:32,580 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-19 20:57:32,581 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-19 20:57:32,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-19 20:57:32,581 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-19 20:57:32,582 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 20:57:32,583 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-19 20:57:32,584 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-19 20:57:32,584 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-19 20:57:32,584 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-19 20:57:32,584 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-19 20:57:32,584 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-19 20:57:32,584 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-19 20:57:32,585 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-19 20:57:32,585 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-19 20:57:32,585 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-19 20:57:32,585 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-19 20:57:32,585 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-19 20:57:32,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-19 20:57:32,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-07-19 20:57:32,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-07-19 20:57:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 20:57:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 20:57:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-19 20:57:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-19 20:57:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-19 20:57:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-19 20:57:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-19 20:57:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-19 20:57:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-19 20:57:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-19 20:57:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-19 20:57:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-19 20:57:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-19 20:57:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-19 20:57:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-19 20:57:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-19 20:57:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-19 20:57:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 20:57:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-19 20:57:32,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-19 20:57:32,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 20:57:32,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-19 20:57:32,588 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-19 20:57:32,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 20:57:32,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-19 20:57:32,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-19 20:57:32,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-19 20:57:32,588 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-19 20:57:32,589 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-19 20:57:32,589 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-19 20:57:32,589 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-19 20:57:32,589 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-19 20:57:32,589 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-19 20:57:32,589 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-19 20:57:32,589 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-19 20:57:32,590 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-19 20:57:32,590 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-07-19 20:57:32,590 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-19 20:57:32,590 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-19 20:57:32,590 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 20:57:32,590 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-19 20:57:32,590 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-19 20:57:32,590 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-19 20:57:32,591 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-19 20:57:32,591 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-19 20:57:32,591 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-07-19 20:57:32,591 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-19 20:57:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-19 20:57:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-19 20:57:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-19 20:57:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-19 20:57:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 20:57:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-19 20:57:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 20:57:33,688 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 20:57:33,689 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-19 20:57:33,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 08:57:33 BoogieIcfgContainer [2020-07-19 20:57:33,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 20:57:33,695 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 20:57:33,695 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 20:57:33,698 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 20:57:33,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 08:57:31" (1/3) ... [2020-07-19 20:57:33,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d92ffa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 08:57:33, skipping insertion in model container [2020-07-19 20:57:33,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:57:32" (2/3) ... [2020-07-19 20:57:33,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d92ffa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 08:57:33, skipping insertion in model container [2020-07-19 20:57:33,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 08:57:33" (3/3) ... [2020-07-19 20:57:33,702 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product36.cil.c [2020-07-19 20:57:33,713 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 20:57:33,727 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 20:57:33,742 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 20:57:33,764 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 20:57:33,764 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 20:57:33,765 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 20:57:33,765 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 20:57:33,765 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 20:57:33,765 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 20:57:33,765 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 20:57:33,766 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 20:57:33,788 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2020-07-19 20:57:33,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-19 20:57:33,798 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:33,799 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] [2020-07-19 20:57:33,800 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:33,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:33,806 INFO L82 PathProgramCache]: Analyzing trace with hash 171708589, now seen corresponding path program 1 times [2020-07-19 20:57:33,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:33,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064616209] [2020-07-19 20:57:33,816 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1c400b65 [2020-07-19 20:57:34,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:34,441 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:34,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:34,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:34,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:34,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:34,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:34,555 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 20:57:34,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064616209] [2020-07-19 20:57:34,558 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:34,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 20:57:34,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714151646] [2020-07-19 20:57:34,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-19 20:57:34,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:34,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-19 20:57:34,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-19 20:57:34,590 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 4 states. [2020-07-19 20:57:35,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:57:35,776 INFO L93 Difference]: Finished difference Result 279 states and 365 transitions. [2020-07-19 20:57:35,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-19 20:57:35,778 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-07-19 20:57:35,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:57:35,792 INFO L225 Difference]: With dead ends: 279 [2020-07-19 20:57:35,793 INFO L226 Difference]: Without dead ends: 157 [2020-07-19 20:57:35,797 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-19 20:57:35,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-07-19 20:57:35,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 123. [2020-07-19 20:57:35,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-07-19 20:57:35,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 143 transitions. [2020-07-19 20:57:35,886 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 143 transitions. Word has length 51 [2020-07-19 20:57:35,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:57:35,887 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 143 transitions. [2020-07-19 20:57:35,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-19 20:57:35,888 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 143 transitions. [2020-07-19 20:57:35,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-19 20:57:35,892 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:35,892 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 20:57:35,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 20:57:35,893 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:35,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:35,895 INFO L82 PathProgramCache]: Analyzing trace with hash -70243324, now seen corresponding path program 1 times [2020-07-19 20:57:35,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:35,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122970053] [2020-07-19 20:57:35,896 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1c400b65 [2020-07-19 20:57:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:36,291 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:36,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:36,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:36,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:36,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:36,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:36,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:36,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:36,392 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 20:57:36,393 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122970053] [2020-07-19 20:57:36,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:36,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-19 20:57:36,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834434720] [2020-07-19 20:57:36,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 20:57:36,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:36,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 20:57:36,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-19 20:57:36,397 INFO L87 Difference]: Start difference. First operand 123 states and 143 transitions. Second operand 5 states. [2020-07-19 20:57:36,906 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:57:37,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:57:37,702 INFO L93 Difference]: Finished difference Result 211 states and 262 transitions. [2020-07-19 20:57:37,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-19 20:57:37,703 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-07-19 20:57:37,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:57:37,706 INFO L225 Difference]: With dead ends: 211 [2020-07-19 20:57:37,706 INFO L226 Difference]: Without dead ends: 147 [2020-07-19 20:57:37,707 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-19 20:57:37,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-07-19 20:57:37,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 114. [2020-07-19 20:57:37,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-07-19 20:57:37,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 131 transitions. [2020-07-19 20:57:37,746 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 131 transitions. Word has length 52 [2020-07-19 20:57:37,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:57:37,747 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 131 transitions. [2020-07-19 20:57:37,747 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 20:57:37,747 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 131 transitions. [2020-07-19 20:57:37,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-19 20:57:37,749 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:37,749 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 20:57:37,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 20:57:37,750 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:37,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:37,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1406294977, now seen corresponding path program 1 times [2020-07-19 20:57:37,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:37,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685022135] [2020-07-19 20:57:37,751 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1c400b65 [2020-07-19 20:57:37,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:38,079 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:38,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:38,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:38,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:38,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:38,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:38,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:38,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:38,174 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 20:57:38,175 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685022135] [2020-07-19 20:57:38,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:38,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-19 20:57:38,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311544440] [2020-07-19 20:57:38,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-19 20:57:38,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:38,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-19 20:57:38,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-19 20:57:38,177 INFO L87 Difference]: Start difference. First operand 114 states and 131 transitions. Second operand 9 states. [2020-07-19 20:57:38,645 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:57:38,947 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:39,196 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:39,429 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:40,232 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:57:41,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:57:41,845 INFO L93 Difference]: Finished difference Result 390 states and 490 transitions. [2020-07-19 20:57:41,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-19 20:57:41,846 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2020-07-19 20:57:41,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:57:41,853 INFO L225 Difference]: With dead ends: 390 [2020-07-19 20:57:41,853 INFO L226 Difference]: Without dead ends: 304 [2020-07-19 20:57:41,855 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-07-19 20:57:41,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-07-19 20:57:41,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 227. [2020-07-19 20:57:41,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-07-19 20:57:41,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 272 transitions. [2020-07-19 20:57:41,926 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 272 transitions. Word has length 57 [2020-07-19 20:57:41,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:57:41,926 INFO L479 AbstractCegarLoop]: Abstraction has 227 states and 272 transitions. [2020-07-19 20:57:41,926 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-19 20:57:41,927 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 272 transitions. [2020-07-19 20:57:41,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-07-19 20:57:41,929 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:41,929 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] [2020-07-19 20:57:41,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-19 20:57:41,929 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:41,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:41,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1471569046, now seen corresponding path program 1 times [2020-07-19 20:57:41,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:41,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015300000] [2020-07-19 20:57:41,931 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1c400b65 [2020-07-19 20:57:41,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:42,288 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:42,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:42,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:42,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:42,434 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 20:57:42,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015300000] [2020-07-19 20:57:42,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:42,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-19 20:57:42,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117688435] [2020-07-19 20:57:42,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-19 20:57:42,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:42,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-19 20:57:42,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-19 20:57:42,437 INFO L87 Difference]: Start difference. First operand 227 states and 272 transitions. Second operand 9 states. [2020-07-19 20:57:42,859 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:57:44,066 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:44,390 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:44,656 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:44,898 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:57:45,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:57:45,963 INFO L93 Difference]: Finished difference Result 730 states and 972 transitions. [2020-07-19 20:57:45,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-19 20:57:45,963 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2020-07-19 20:57:45,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:57:45,972 INFO L225 Difference]: With dead ends: 730 [2020-07-19 20:57:45,973 INFO L226 Difference]: Without dead ends: 531 [2020-07-19 20:57:45,978 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2020-07-19 20:57:45,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2020-07-19 20:57:46,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 402. [2020-07-19 20:57:46,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-07-19 20:57:46,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 484 transitions. [2020-07-19 20:57:46,086 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 484 transitions. Word has length 62 [2020-07-19 20:57:46,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:57:46,087 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 484 transitions. [2020-07-19 20:57:46,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-19 20:57:46,087 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 484 transitions. [2020-07-19 20:57:46,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-07-19 20:57:46,089 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:46,090 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] [2020-07-19 20:57:46,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 20:57:46,090 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:46,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:46,091 INFO L82 PathProgramCache]: Analyzing trace with hash -675634618, now seen corresponding path program 1 times [2020-07-19 20:57:46,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:46,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548787294] [2020-07-19 20:57:46,091 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1c400b65 [2020-07-19 20:57:46,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:46,377 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:46,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:46,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:46,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:46,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:46,475 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 20:57:46,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548787294] [2020-07-19 20:57:46,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:46,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-19 20:57:46,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014978943] [2020-07-19 20:57:46,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-19 20:57:46,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:46,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-19 20:57:46,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-07-19 20:57:46,477 INFO L87 Difference]: Start difference. First operand 402 states and 484 transitions. Second operand 10 states. [2020-07-19 20:57:46,914 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:57:48,029 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:48,347 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:48,607 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:49,171 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:57:50,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:57:50,232 INFO L93 Difference]: Finished difference Result 1162 states and 1576 transitions. [2020-07-19 20:57:50,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-07-19 20:57:50,233 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 66 [2020-07-19 20:57:50,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:57:50,240 INFO L225 Difference]: With dead ends: 1162 [2020-07-19 20:57:50,241 INFO L226 Difference]: Without dead ends: 788 [2020-07-19 20:57:50,244 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=205, Invalid=551, Unknown=0, NotChecked=0, Total=756 [2020-07-19 20:57:50,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2020-07-19 20:57:50,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 593. [2020-07-19 20:57:50,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2020-07-19 20:57:50,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 715 transitions. [2020-07-19 20:57:50,385 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 715 transitions. Word has length 66 [2020-07-19 20:57:50,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:57:50,386 INFO L479 AbstractCegarLoop]: Abstraction has 593 states and 715 transitions. [2020-07-19 20:57:50,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-19 20:57:50,386 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 715 transitions. [2020-07-19 20:57:50,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-07-19 20:57:50,389 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:50,389 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 20:57:50,389 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-19 20:57:50,389 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:50,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:50,390 INFO L82 PathProgramCache]: Analyzing trace with hash -1616247053, now seen corresponding path program 1 times [2020-07-19 20:57:50,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:50,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31412266] [2020-07-19 20:57:50,391 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1c400b65 [2020-07-19 20:57:50,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:50,724 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:50,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:50,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:50,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:50,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:50,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:50,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:50,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:50,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:50,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:50,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:50,892 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 20:57:50,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31412266] [2020-07-19 20:57:50,893 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:50,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-19 20:57:50,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996710537] [2020-07-19 20:57:50,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-19 20:57:50,894 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:50,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-19 20:57:50,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-07-19 20:57:50,895 INFO L87 Difference]: Start difference. First operand 593 states and 715 transitions. Second operand 10 states. [2020-07-19 20:57:51,324 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:57:52,369 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:52,648 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-19 20:57:52,925 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:53,219 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:54,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:57:54,882 INFO L93 Difference]: Finished difference Result 2139 states and 3058 transitions. [2020-07-19 20:57:54,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-19 20:57:54,888 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2020-07-19 20:57:54,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:57:54,901 INFO L225 Difference]: With dead ends: 2139 [2020-07-19 20:57:54,901 INFO L226 Difference]: Without dead ends: 1574 [2020-07-19 20:57:54,905 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-07-19 20:57:54,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2020-07-19 20:57:55,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1135. [2020-07-19 20:57:55,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1135 states. [2020-07-19 20:57:55,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1135 states to 1135 states and 1372 transitions. [2020-07-19 20:57:55,139 INFO L78 Accepts]: Start accepts. Automaton has 1135 states and 1372 transitions. Word has length 84 [2020-07-19 20:57:55,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:57:55,139 INFO L479 AbstractCegarLoop]: Abstraction has 1135 states and 1372 transitions. [2020-07-19 20:57:55,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-19 20:57:55,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1135 states and 1372 transitions. [2020-07-19 20:57:55,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-07-19 20:57:55,145 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:55,146 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 20:57:55,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-19 20:57:55,146 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:55,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:55,147 INFO L82 PathProgramCache]: Analyzing trace with hash 567429874, now seen corresponding path program 1 times [2020-07-19 20:57:55,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:55,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144215558] [2020-07-19 20:57:55,147 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1c400b65 [2020-07-19 20:57:55,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,384 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:55,498 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 20:57:55,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144215558] [2020-07-19 20:57:55,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:55,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-19 20:57:55,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762599039] [2020-07-19 20:57:55,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-19 20:57:55,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:55,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-19 20:57:55,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-07-19 20:57:55,501 INFO L87 Difference]: Start difference. First operand 1135 states and 1372 transitions. Second operand 10 states. [2020-07-19 20:57:56,817 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 20:57:57,191 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-19 20:57:57,465 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:57:57,715 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:57:58,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:57:58,880 INFO L93 Difference]: Finished difference Result 2694 states and 3601 transitions. [2020-07-19 20:57:58,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-19 20:57:58,881 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2020-07-19 20:57:58,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:57:58,893 INFO L225 Difference]: With dead ends: 2694 [2020-07-19 20:57:58,894 INFO L226 Difference]: Without dead ends: 1587 [2020-07-19 20:57:58,898 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-07-19 20:57:58,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2020-07-19 20:57:59,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1175. [2020-07-19 20:57:59,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1175 states. [2020-07-19 20:57:59,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1412 transitions. [2020-07-19 20:57:59,142 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1412 transitions. Word has length 84 [2020-07-19 20:57:59,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:57:59,143 INFO L479 AbstractCegarLoop]: Abstraction has 1175 states and 1412 transitions. [2020-07-19 20:57:59,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-19 20:57:59,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1412 transitions. [2020-07-19 20:57:59,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-07-19 20:57:59,146 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:57:59,146 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 20:57:59,147 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-19 20:57:59,147 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:57:59,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:57:59,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1953633268, now seen corresponding path program 1 times [2020-07-19 20:57:59,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:57:59,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192300050] [2020-07-19 20:57:59,148 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1c400b65 [2020-07-19 20:57:59,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,405 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:57:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:57:59,541 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 20:57:59,542 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192300050] [2020-07-19 20:57:59,542 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:57:59,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-19 20:57:59,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102599187] [2020-07-19 20:57:59,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-19 20:57:59,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:57:59,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-19 20:57:59,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-07-19 20:57:59,544 INFO L87 Difference]: Start difference. First operand 1175 states and 1412 transitions. Second operand 12 states. [2020-07-19 20:58:00,459 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:58:00,702 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:58:00,946 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:58:01,769 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:58:02,038 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:58:02,300 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:58:03,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:58:03,505 INFO L93 Difference]: Finished difference Result 2386 states and 3145 transitions. [2020-07-19 20:58:03,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-19 20:58:03,511 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 84 [2020-07-19 20:58:03,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:58:03,520 INFO L225 Difference]: With dead ends: 2386 [2020-07-19 20:58:03,520 INFO L226 Difference]: Without dead ends: 1239 [2020-07-19 20:58:03,525 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2020-07-19 20:58:03,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2020-07-19 20:58:03,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 951. [2020-07-19 20:58:03,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 951 states. [2020-07-19 20:58:03,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1112 transitions. [2020-07-19 20:58:03,738 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1112 transitions. Word has length 84 [2020-07-19 20:58:03,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:58:03,738 INFO L479 AbstractCegarLoop]: Abstraction has 951 states and 1112 transitions. [2020-07-19 20:58:03,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-19 20:58:03,739 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1112 transitions. [2020-07-19 20:58:03,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-19 20:58:03,742 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:58:03,742 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:58:03,742 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-19 20:58:03,742 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:58:03,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:58:03,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1427109873, now seen corresponding path program 1 times [2020-07-19 20:58:03,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:58:03,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180146340] [2020-07-19 20:58:03,743 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1c400b65 [2020-07-19 20:58:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:04,045 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:58:04,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:04,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:04,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:04,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:04,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:04,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:04,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:04,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:04,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:58:04,164 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 20:58:04,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180146340] [2020-07-19 20:58:04,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:58:04,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 20:58:04,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422052951] [2020-07-19 20:58:04,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 20:58:04,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:58:04,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 20:58:04,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-19 20:58:04,168 INFO L87 Difference]: Start difference. First operand 951 states and 1112 transitions. Second operand 8 states. [2020-07-19 20:58:04,802 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 20:58:06,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:58:06,878 INFO L93 Difference]: Finished difference Result 1906 states and 2527 transitions. [2020-07-19 20:58:06,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-19 20:58:06,879 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 88 [2020-07-19 20:58:06,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:58:06,892 INFO L225 Difference]: With dead ends: 1906 [2020-07-19 20:58:06,892 INFO L226 Difference]: Without dead ends: 1903 [2020-07-19 20:58:06,894 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=212, Invalid=544, Unknown=0, NotChecked=0, Total=756 [2020-07-19 20:58:06,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1903 states. [2020-07-19 20:58:07,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1903 to 1456. [2020-07-19 20:58:07,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1456 states. [2020-07-19 20:58:07,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 1720 transitions. [2020-07-19 20:58:07,251 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 1720 transitions. Word has length 88 [2020-07-19 20:58:07,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:58:07,252 INFO L479 AbstractCegarLoop]: Abstraction has 1456 states and 1720 transitions. [2020-07-19 20:58:07,252 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 20:58:07,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 1720 transitions. [2020-07-19 20:58:07,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-07-19 20:58:07,259 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:58:07,259 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:58:07,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-19 20:58:07,260 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:58:07,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:58:07,260 INFO L82 PathProgramCache]: Analyzing trace with hash 475998026, now seen corresponding path program 1 times [2020-07-19 20:58:07,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:58:07,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805321439] [2020-07-19 20:58:07,261 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1c400b65 [2020-07-19 20:58:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 20:58:07,315 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 20:58:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 20:58:07,365 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 20:58:07,500 INFO L174 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2020-07-19 20:58:07,500 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 20:58:07,500 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-19 20:58:07,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 08:58:07 BoogieIcfgContainer [2020-07-19 20:58:07,738 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 20:58:07,740 INFO L168 Benchmark]: Toolchain (without parser) took 36000.33 ms. Allocated memory was 141.6 MB in the beginning and 724.6 MB in the end (delta: 583.0 MB). Free memory was 96.9 MB in the beginning and 184.8 MB in the end (delta: -87.9 MB). Peak memory consumption was 495.1 MB. Max. memory is 7.1 GB. [2020-07-19 20:58:07,741 INFO L168 Benchmark]: CDTParser took 1.14 ms. Allocated memory is still 141.6 MB. Free memory is still 116.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-19 20:58:07,741 INFO L168 Benchmark]: CACSL2BoogieTranslator took 640.10 ms. Allocated memory was 141.6 MB in the beginning and 198.7 MB in the end (delta: 57.1 MB). Free memory was 96.5 MB in the beginning and 166.6 MB in the end (delta: -70.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-07-19 20:58:07,742 INFO L168 Benchmark]: Boogie Preprocessor took 113.54 ms. Allocated memory is still 198.7 MB. Free memory was 166.6 MB in the beginning and 162.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-07-19 20:58:07,743 INFO L168 Benchmark]: RCFGBuilder took 1198.33 ms. Allocated memory was 198.7 MB in the beginning and 224.9 MB in the end (delta: 26.2 MB). Free memory was 162.0 MB in the beginning and 191.6 MB in the end (delta: -29.6 MB). Peak memory consumption was 89.9 MB. Max. memory is 7.1 GB. [2020-07-19 20:58:07,744 INFO L168 Benchmark]: TraceAbstraction took 34042.92 ms. Allocated memory was 224.9 MB in the beginning and 724.6 MB in the end (delta: 499.6 MB). Free memory was 191.6 MB in the beginning and 184.8 MB in the end (delta: 6.8 MB). Peak memory consumption was 506.4 MB. Max. memory is 7.1 GB. [2020-07-19 20:58:07,747 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.14 ms. Allocated memory is still 141.6 MB. Free memory is still 116.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 640.10 ms. Allocated memory was 141.6 MB in the beginning and 198.7 MB in the end (delta: 57.1 MB). Free memory was 96.5 MB in the beginning and 166.6 MB in the end (delta: -70.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.54 ms. Allocated memory is still 198.7 MB. Free memory was 166.6 MB in the beginning and 162.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1198.33 ms. Allocated memory was 198.7 MB in the beginning and 224.9 MB in the end (delta: 26.2 MB). Free memory was 162.0 MB in the beginning and 191.6 MB in the end (delta: -29.6 MB). Peak memory consumption was 89.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 34042.92 ms. Allocated memory was 224.9 MB in the beginning and 724.6 MB in the end (delta: 499.6 MB). Free memory was 191.6 MB in the beginning and 184.8 MB in the end (delta: 6.8 MB). Peak memory consumption was 506.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 900]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L310] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L545] int cleanupTimeShifts = 4; [L651] int pumpRunning = 0; [L652] int systemActive = 1; [L905] int methAndRunningLastTime ; VAL [\old(cleanupTimeShifts)=175, \old(head)=177, \old(head)=164, \old(methAndRunningLastTime)=168, \old(methaneLevelCritical)=142, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=137, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L623] int retValue_acc ; [L624] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L628] FCALL select_helpers() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L629] FCALL select_features() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L630] CALL, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L630] RET, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L630] tmp = valid_product() [L632] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L634] FCALL setup() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L635] CALL runTest() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L616] CALL __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L910] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L616] RET __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L617] CALL test() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L828] int splverifierCounter ; [L829] int tmp ; [L830] int tmp___0 ; [L831] int tmp___1 ; [L832] int tmp___2 ; [L835] splverifierCounter = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L837] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L839] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L845] tmp = __VERIFIER_nondet_int() [L847] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L849] CALL waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L849] RET waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L855] tmp___0 = __VERIFIER_nondet_int() [L857] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=-2, waterLevel=2] [L859] CALL changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L77] COND FALSE !(\read(methaneLevelCritical)) [L80] methaneLevelCritical = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L859] RET changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=-2, waterLevel=2] [L865] tmp___2 = __VERIFIER_nondet_int() [L867] COND FALSE !(\read(tmp___2)) [L873] tmp___1 = __VERIFIER_nondet_int() [L875] COND FALSE !(\read(tmp___1)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=-2, tmp___1=0, tmp___2=0, waterLevel=2] [L884] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L659] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L666] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L668] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L688] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L691] COND TRUE ! pumpRunning VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L693] CALL, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L785] int retValue_acc ; [L786] int tmp ; [L787] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L791] CALL, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L127] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L791] RET, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L791] tmp = isHighWaterSensorDry() [L793] COND FALSE !(\read(tmp)) [L796] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L798] retValue_acc = tmp___0 [L799] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L693] RET, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L693] tmp = isHighWaterLevel() [L695] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L697] CALL activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L716] pumpRunning = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L697] RET activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L668] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L674] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L915] int tmp ; [L916] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L920] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L920] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L920] tmp = isMethaneLevelCritical() [L922] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L924] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L740] int retValue_acc ; [L743] retValue_acc = pumpRunning [L744] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L924] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L924] tmp___0 = isPumpRunning() [L926] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L927] COND FALSE !(\read(methAndRunningLastTime)) [L932] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L674] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L884] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=-2, tmp___1=0, tmp___2=0, waterLevel=2] [L837] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=-2, tmp___1=0, tmp___2=0, waterLevel=2] [L839] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=-2, tmp___1=0, tmp___2=0, waterLevel=2] [L845] tmp = __VERIFIER_nondet_int() [L847] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-2, tmp___1=0, tmp___2=0, waterLevel=2] [L855] tmp___0 = __VERIFIER_nondet_int() [L857] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L865] tmp___2 = __VERIFIER_nondet_int() [L867] COND FALSE !(\read(tmp___2)) [L873] tmp___1 = __VERIFIER_nondet_int() [L875] COND FALSE !(\read(tmp___1)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L884] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L659] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L661] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L661] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L666] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L668] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L688] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L691] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L706] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L668] RET processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L674] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L915] int tmp ; [L916] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L920] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L920] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L920] tmp = isMethaneLevelCritical() [L922] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L924] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L740] int retValue_acc ; [L743] retValue_acc = pumpRunning [L744] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L924] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L924] tmp___0 = isPumpRunning() [L926] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L927] COND TRUE \read(methAndRunningLastTime) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L929] CALL __automaton_fail() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L900] __VERIFIER_error() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 230 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 33.7s, OverallIterations: 10, TraceHistogramMax: 2, AutomataDifference: 27.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 958 SDtfs, 2942 SDslu, 1444 SDs, 0 SdLazy, 6222 SolverSat, 2317 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 377 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 660 ImplicationChecksByTransitivity, 10.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1456occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 2054 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 759 NumberOfCodeBlocks, 759 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 619 ConstructedInterpolants, 0 QuantifiedInterpolants, 192303 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...