/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.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 21:12:13,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 21:12:13,276 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 21:12:13,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 21:12:13,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 21:12:13,301 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 21:12:13,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 21:12:13,304 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 21:12:13,306 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 21:12:13,306 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 21:12:13,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 21:12:13,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 21:12:13,309 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 21:12:13,310 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 21:12:13,311 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 21:12:13,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 21:12:13,313 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 21:12:13,314 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 21:12:13,315 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 21:12:13,317 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 21:12:13,318 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 21:12:13,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 21:12:13,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 21:12:13,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 21:12:13,324 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 21:12:13,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 21:12:13,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 21:12:13,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 21:12:13,326 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 21:12:13,327 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 21:12:13,327 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 21:12:13,328 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 21:12:13,328 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 21:12:13,329 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 21:12:13,330 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 21:12:13,330 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 21:12:13,331 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 21:12:13,331 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 21:12:13,331 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 21:12:13,332 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 21:12:13,333 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 21:12:13,334 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 21:12:13,355 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 21:12:13,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 21:12:13,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 21:12:13,361 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 21:12:13,361 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 21:12:13,361 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 21:12:13,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 21:12:13,361 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 21:12:13,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 21:12:13,362 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 21:12:13,362 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 21:12:13,362 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 21:12:13,362 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 21:12:13,363 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 21:12:13,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 21:12:13,363 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 21:12:13,363 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 21:12:13,363 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 21:12:13,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:12:13,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 21:12:13,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 21:12:13,365 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 21:12:13,365 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-08-22 21:12:13,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 21:12:13,680 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 21:12:13,684 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 21:12:13,685 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 21:12:13,686 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 21:12:13,686 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product39.cil.c [2020-08-22 21:12:13,750 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aca8d94ce/b91d7d80b65042d0b520bd0bd14febe8/FLAG367a05a82 [2020-08-22 21:12:14,265 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 21:12:14,266 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product39.cil.c [2020-08-22 21:12:14,280 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aca8d94ce/b91d7d80b65042d0b520bd0bd14febe8/FLAG367a05a82 [2020-08-22 21:12:14,607 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aca8d94ce/b91d7d80b65042d0b520bd0bd14febe8 [2020-08-22 21:12:14,617 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 21:12:14,619 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 21:12:14,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 21:12:14,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 21:12:14,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 21:12:14,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:12:14" (1/1) ... [2020-08-22 21:12:14,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56d8522c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:14, skipping insertion in model container [2020-08-22 21:12:14,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:12:14" (1/1) ... [2020-08-22 21:12:14,634 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 21:12:14,689 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 21:12:15,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:12:15,157 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 21:12:15,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:12:15,309 INFO L208 MainTranslator]: Completed translation [2020-08-22 21:12:15,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:15 WrapperNode [2020-08-22 21:12:15,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 21:12:15,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 21:12:15,310 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 21:12:15,310 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 21:12:15,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:15" (1/1) ... [2020-08-22 21:12:15,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:15" (1/1) ... [2020-08-22 21:12:15,349 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:15" (1/1) ... [2020-08-22 21:12:15,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:15" (1/1) ... [2020-08-22 21:12:15,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:15" (1/1) ... [2020-08-22 21:12:15,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:15" (1/1) ... [2020-08-22 21:12:15,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:15" (1/1) ... [2020-08-22 21:12:15,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 21:12:15,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 21:12:15,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 21:12:15,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 21:12:15,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:12:15,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 21:12:15,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 21:12:15,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 21:12:15,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 21:12:15,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 21:12:15,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 21:12:15,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 21:12:15,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 21:12:15,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 21:12:15,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-08-22 21:12:15,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 21:12:15,477 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 21:12:15,477 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 21:12:15,477 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 21:12:15,478 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 21:12:15,478 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 21:12:15,478 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 21:12:15,478 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 21:12:15,479 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 21:12:15,480 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 21:12:15,480 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 21:12:15,480 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-22 21:12:15,482 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 21:12:15,483 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 21:12:15,483 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 21:12:15,483 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 21:12:15,483 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 21:12:15,484 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 21:12:15,484 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 21:12:15,485 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 21:12:15,485 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 21:12:15,485 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 21:12:15,485 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 21:12:15,485 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 21:12:15,485 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 21:12:15,485 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 21:12:15,486 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 21:12:15,486 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 21:12:15,486 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 21:12:15,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 21:12:15,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 21:12:15,486 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 21:12:15,486 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 21:12:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 21:12:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 21:12:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 21:12:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 21:12:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 21:12:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 21:12:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 21:12:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 21:12:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 21:12:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 21:12:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 21:12:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 21:12:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 21:12:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 21:12:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 21:12:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 21:12:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 21:12:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 21:12:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 21:12:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-08-22 21:12:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 21:12:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 21:12:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 21:12:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 21:12:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 21:12:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 21:12:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 21:12:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 21:12:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 21:12:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 21:12:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 21:12:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 21:12:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 21:12:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 21:12:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 21:12:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 21:12:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-22 21:12:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 21:12:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 21:12:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 21:12:15,492 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 21:12:15,492 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 21:12:15,492 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 21:12:15,492 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 21:12:15,493 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 21:12:15,493 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 21:12:15,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 21:12:15,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 21:12:15,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 21:12:16,574 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 21:12:16,574 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 21:12:16,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:12:16 BoogieIcfgContainer [2020-08-22 21:12:16,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 21:12:16,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 21:12:16,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 21:12:16,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 21:12:16,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 09:12:14" (1/3) ... [2020-08-22 21:12:16,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a62041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:12:16, skipping insertion in model container [2020-08-22 21:12:16,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:12:15" (2/3) ... [2020-08-22 21:12:16,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a62041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:12:16, skipping insertion in model container [2020-08-22 21:12:16,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:12:16" (3/3) ... [2020-08-22 21:12:16,589 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product39.cil.c [2020-08-22 21:12:16,600 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 21:12:16,609 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 21:12:16,623 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 21:12:16,645 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 21:12:16,645 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 21:12:16,645 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 21:12:16,645 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 21:12:16,646 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 21:12:16,646 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 21:12:16,646 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 21:12:16,646 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 21:12:16,665 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states. [2020-08-22 21:12:16,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-08-22 21:12:16,687 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:12:16,689 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:12:16,689 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:12:16,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:12:16,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1299916906, now seen corresponding path program 1 times [2020-08-22 21:12:16,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:12:16,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [511875492] [2020-08-22 21:12:16,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:12:16,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:17,459 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:12:17,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:12:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:17,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:12:17,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:17,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:12:17,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:17,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:12:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:17,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:12:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:17,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-22 21:12:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:17,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-08-22 21:12:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:17,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:12:17,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [511875492] [2020-08-22 21:12:17,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:12:17,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 21:12:17,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129709615] [2020-08-22 21:12:17,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 21:12:17,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:12:17,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 21:12:17,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 21:12:17,686 INFO L87 Difference]: Start difference. First operand 307 states. Second operand 3 states. [2020-08-22 21:12:19,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:12:19,106 INFO L93 Difference]: Finished difference Result 481 states and 577 transitions. [2020-08-22 21:12:19,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 21:12:19,108 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-08-22 21:12:19,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:12:19,141 INFO L225 Difference]: With dead ends: 481 [2020-08-22 21:12:19,141 INFO L226 Difference]: Without dead ends: 299 [2020-08-22 21:12:19,146 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 21:12:19,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-08-22 21:12:19,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 256. [2020-08-22 21:12:19,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-08-22 21:12:19,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 280 transitions. [2020-08-22 21:12:19,307 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 280 transitions. Word has length 142 [2020-08-22 21:12:19,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:12:19,308 INFO L479 AbstractCegarLoop]: Abstraction has 256 states and 280 transitions. [2020-08-22 21:12:19,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 21:12:19,309 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 280 transitions. [2020-08-22 21:12:19,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-08-22 21:12:19,322 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:12:19,323 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:12:19,323 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 21:12:19,323 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:12:19,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:12:19,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1066330747, now seen corresponding path program 1 times [2020-08-22 21:12:19,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:12:19,324 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [825393304] [2020-08-22 21:12:19,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:12:19,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:19,880 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:12:19,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:12:19,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:19,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:12:19,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:19,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:12:19,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:19,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:12:19,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:19,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:12:19,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:19,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 21:12:19,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:19,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 21:12:19,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:19,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:12:19,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [825393304] [2020-08-22 21:12:19,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:12:19,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 21:12:19,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557872845] [2020-08-22 21:12:19,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 21:12:19,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:12:19,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 21:12:19,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 21:12:19,993 INFO L87 Difference]: Start difference. First operand 256 states and 280 transitions. Second operand 4 states. [2020-08-22 21:12:20,608 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:12:21,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:12:21,574 INFO L93 Difference]: Finished difference Result 392 states and 444 transitions. [2020-08-22 21:12:21,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 21:12:21,575 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-08-22 21:12:21,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:12:21,580 INFO L225 Difference]: With dead ends: 392 [2020-08-22 21:12:21,580 INFO L226 Difference]: Without dead ends: 282 [2020-08-22 21:12:21,583 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 21:12:21,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-08-22 21:12:21,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 246. [2020-08-22 21:12:21,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-08-22 21:12:21,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 267 transitions. [2020-08-22 21:12:21,700 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 267 transitions. Word has length 143 [2020-08-22 21:12:21,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:12:21,701 INFO L479 AbstractCegarLoop]: Abstraction has 246 states and 267 transitions. [2020-08-22 21:12:21,701 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 21:12:21,701 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 267 transitions. [2020-08-22 21:12:21,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-08-22 21:12:21,703 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:12:21,704 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:12:21,704 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 21:12:21,704 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:12:21,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:12:21,705 INFO L82 PathProgramCache]: Analyzing trace with hash 449926668, now seen corresponding path program 1 times [2020-08-22 21:12:21,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:12:21,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1508362271] [2020-08-22 21:12:21,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:12:21,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:22,092 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:12:22,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:12:22,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:22,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:12:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:22,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:12:22,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:22,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:12:22,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:22,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:12:22,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:22,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-08-22 21:12:22,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:22,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-08-22 21:12:22,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:22,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:12:22,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1508362271] [2020-08-22 21:12:22,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:12:22,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 21:12:22,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627911749] [2020-08-22 21:12:22,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 21:12:22,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:12:22,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 21:12:22,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 21:12:22,263 INFO L87 Difference]: Start difference. First operand 246 states and 267 transitions. Second operand 9 states. [2020-08-22 21:12:22,848 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:12:23,175 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:12:23,458 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:12:23,730 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:12:24,034 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:12:24,291 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:12:25,273 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:12:27,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:12:27,509 INFO L93 Difference]: Finished difference Result 649 states and 752 transitions. [2020-08-22 21:12:27,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 21:12:27,510 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 152 [2020-08-22 21:12:27,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:12:27,516 INFO L225 Difference]: With dead ends: 649 [2020-08-22 21:12:27,517 INFO L226 Difference]: Without dead ends: 513 [2020-08-22 21:12:27,519 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-08-22 21:12:27,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2020-08-22 21:12:27,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 446. [2020-08-22 21:12:27,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2020-08-22 21:12:27,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 502 transitions. [2020-08-22 21:12:27,664 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 502 transitions. Word has length 152 [2020-08-22 21:12:27,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:12:27,664 INFO L479 AbstractCegarLoop]: Abstraction has 446 states and 502 transitions. [2020-08-22 21:12:27,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 21:12:27,665 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 502 transitions. [2020-08-22 21:12:27,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-08-22 21:12:27,668 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:12:27,668 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:12:27,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 21:12:27,669 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:12:27,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:12:27,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1074396656, now seen corresponding path program 1 times [2020-08-22 21:12:27,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:12:27,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1306912870] [2020-08-22 21:12:27,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:12:27,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:27,997 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:12:27,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:12:28,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:28,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:12:28,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:28,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:12:28,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:28,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:12:28,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:28,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:12:28,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:28,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-08-22 21:12:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:28,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 21:12:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:28,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-08-22 21:12:28,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:28,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:12:28,152 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1306912870] [2020-08-22 21:12:28,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:12:28,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 21:12:28,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298033722] [2020-08-22 21:12:28,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 21:12:28,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:12:28,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 21:12:28,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 21:12:28,157 INFO L87 Difference]: Start difference. First operand 446 states and 502 transitions. Second operand 9 states. [2020-08-22 21:12:28,860 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:12:29,952 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:12:30,344 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:12:30,793 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:12:31,132 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:12:31,610 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:12:31,943 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:12:32,251 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:12:32,756 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:12:33,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:12:33,843 INFO L93 Difference]: Finished difference Result 1233 states and 1488 transitions. [2020-08-22 21:12:33,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 21:12:33,844 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-08-22 21:12:33,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:12:33,853 INFO L225 Difference]: With dead ends: 1233 [2020-08-22 21:12:33,853 INFO L226 Difference]: Without dead ends: 897 [2020-08-22 21:12:33,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-08-22 21:12:33,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2020-08-22 21:12:34,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 743. [2020-08-22 21:12:34,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 743 states. [2020-08-22 21:12:34,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 850 transitions. [2020-08-22 21:12:34,104 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 850 transitions. Word has length 161 [2020-08-22 21:12:34,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:12:34,105 INFO L479 AbstractCegarLoop]: Abstraction has 743 states and 850 transitions. [2020-08-22 21:12:34,105 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 21:12:34,105 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 850 transitions. [2020-08-22 21:12:34,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-08-22 21:12:34,109 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:12:34,109 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:12:34,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 21:12:34,110 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:12:34,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:12:34,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1527739392, now seen corresponding path program 1 times [2020-08-22 21:12:34,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:12:34,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1507008271] [2020-08-22 21:12:34,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:12:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:34,480 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:12:34,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:12:34,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:34,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:12:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:34,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:12:34,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:34,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:12:34,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:34,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:12:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:34,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-22 21:12:34,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:34,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-08-22 21:12:34,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:34,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-08-22 21:12:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:34,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-08-22 21:12:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:34,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:12:34,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1507008271] [2020-08-22 21:12:34,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:12:34,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 21:12:34,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068306888] [2020-08-22 21:12:34,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 21:12:34,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:12:34,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 21:12:34,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 21:12:34,652 INFO L87 Difference]: Start difference. First operand 743 states and 850 transitions. Second operand 10 states. [2020-08-22 21:12:35,217 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:12:36,532 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:12:36,822 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:12:37,153 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:12:37,474 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:12:37,798 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:12:38,431 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:12:38,714 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:12:39,151 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:12:40,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:12:40,379 INFO L93 Difference]: Finished difference Result 1940 states and 2409 transitions. [2020-08-22 21:12:40,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-22 21:12:40,380 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 166 [2020-08-22 21:12:40,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:12:40,389 INFO L225 Difference]: With dead ends: 1940 [2020-08-22 21:12:40,390 INFO L226 Difference]: Without dead ends: 1307 [2020-08-22 21:12:40,393 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-08-22 21:12:40,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1307 states. [2020-08-22 21:12:40,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1307 to 1045. [2020-08-22 21:12:40,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1045 states. [2020-08-22 21:12:40,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1213 transitions. [2020-08-22 21:12:40,700 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1213 transitions. Word has length 166 [2020-08-22 21:12:40,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:12:40,700 INFO L479 AbstractCegarLoop]: Abstraction has 1045 states and 1213 transitions. [2020-08-22 21:12:40,701 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 21:12:40,701 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1213 transitions. [2020-08-22 21:12:40,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-08-22 21:12:40,704 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:12:40,704 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:12:40,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 21:12:40,705 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:12:40,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:12:40,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1570026786, now seen corresponding path program 1 times [2020-08-22 21:12:40,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:12:40,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [548153660] [2020-08-22 21:12:40,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:12:40,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:41,078 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:12:41,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:12:41,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:41,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:12:41,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:41,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:12:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:41,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:12:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:41,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:12:41,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:41,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-22 21:12:41,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:41,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-22 21:12:41,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:41,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:12:41,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:41,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:12:41,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:41,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:12:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:41,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:12:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:41,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-22 21:12:41,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:41,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-08-22 21:12:41,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:41,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:12:41,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [548153660] [2020-08-22 21:12:41,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:12:41,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 21:12:41,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744183926] [2020-08-22 21:12:41,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 21:12:41,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:12:41,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 21:12:41,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 21:12:41,269 INFO L87 Difference]: Start difference. First operand 1045 states and 1213 transitions. Second operand 10 states. [2020-08-22 21:12:42,683 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:12:42,962 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:12:43,261 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 21:12:43,586 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:12:43,883 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:12:44,150 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:12:45,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:12:45,514 INFO L93 Difference]: Finished difference Result 2384 states and 2938 transitions. [2020-08-22 21:12:45,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 21:12:45,515 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 195 [2020-08-22 21:12:45,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:12:45,524 INFO L225 Difference]: With dead ends: 2384 [2020-08-22 21:12:45,524 INFO L226 Difference]: Without dead ends: 1449 [2020-08-22 21:12:45,527 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-08-22 21:12:45,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states. [2020-08-22 21:12:45,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 1083. [2020-08-22 21:12:45,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1083 states. [2020-08-22 21:12:45,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1253 transitions. [2020-08-22 21:12:45,825 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1253 transitions. Word has length 195 [2020-08-22 21:12:45,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:12:45,826 INFO L479 AbstractCegarLoop]: Abstraction has 1083 states and 1253 transitions. [2020-08-22 21:12:45,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 21:12:45,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1253 transitions. [2020-08-22 21:12:45,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-08-22 21:12:45,830 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:12:45,830 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:12:45,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 21:12:45,831 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:12:45,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:12:45,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1751070334, now seen corresponding path program 1 times [2020-08-22 21:12:45,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:12:45,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [840318871] [2020-08-22 21:12:45,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:12:45,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:46,105 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:12:46,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:12:46,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:46,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:12:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:46,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:12:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:46,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:12:46,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:46,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:12:46,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:46,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-22 21:12:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:46,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-22 21:12:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:46,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:12:46,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:46,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:12:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:46,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:12:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:46,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:12:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:46,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-22 21:12:46,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:46,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-08-22 21:12:46,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:46,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:12:46,313 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [840318871] [2020-08-22 21:12:46,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:12:46,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-22 21:12:46,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292758406] [2020-08-22 21:12:46,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-22 21:12:46,315 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:12:46,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-22 21:12:46,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-08-22 21:12:46,316 INFO L87 Difference]: Start difference. First operand 1083 states and 1253 transitions. Second operand 13 states. [2020-08-22 21:12:46,883 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:12:47,203 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:12:47,471 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:12:47,726 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:12:47,973 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:12:48,880 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:12:49,165 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:12:49,465 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:12:49,788 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:12:50,054 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:12:51,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:12:51,694 INFO L93 Difference]: Finished difference Result 2466 states and 3077 transitions. [2020-08-22 21:12:51,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 21:12:51,695 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 195 [2020-08-22 21:12:51,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:12:51,704 INFO L225 Difference]: With dead ends: 2466 [2020-08-22 21:12:51,704 INFO L226 Difference]: Without dead ends: 1493 [2020-08-22 21:12:51,709 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2020-08-22 21:12:51,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1493 states. [2020-08-22 21:12:52,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1493 to 1107. [2020-08-22 21:12:52,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1107 states. [2020-08-22 21:12:52,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 1277 transitions. [2020-08-22 21:12:52,282 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 1277 transitions. Word has length 195 [2020-08-22 21:12:52,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:12:52,282 INFO L479 AbstractCegarLoop]: Abstraction has 1107 states and 1277 transitions. [2020-08-22 21:12:52,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-22 21:12:52,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 1277 transitions. [2020-08-22 21:12:52,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-08-22 21:12:52,285 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:12:52,285 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:12:52,285 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 21:12:52,286 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:12:52,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:12:52,286 INFO L82 PathProgramCache]: Analyzing trace with hash 110776353, now seen corresponding path program 1 times [2020-08-22 21:12:52,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:12:52,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671658621] [2020-08-22 21:12:52,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:12:52,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:52,612 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:12:52,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:12:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:52,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:12:52,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:52,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:12:52,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:52,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:12:52,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:52,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:12:52,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:52,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-22 21:12:52,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:52,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-22 21:12:52,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:52,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:12:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:52,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:12:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:52,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 21:12:52,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:52,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 21:12:52,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:52,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-22 21:12:52,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:52,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-08-22 21:12:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:12:52,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:12:52,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671658621] [2020-08-22 21:12:52,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:12:52,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 21:12:52,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629251220] [2020-08-22 21:12:52,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 21:12:52,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:12:52,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 21:12:52,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 21:12:52,871 INFO L87 Difference]: Start difference. First operand 1107 states and 1277 transitions. Second operand 7 states. [2020-08-22 21:12:53,609 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:12:54,256 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:12:57,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:12:57,469 INFO L93 Difference]: Finished difference Result 3764 states and 4711 transitions. [2020-08-22 21:12:57,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 21:12:57,470 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 195 [2020-08-22 21:12:57,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:12:57,484 INFO L225 Difference]: With dead ends: 3764 [2020-08-22 21:12:57,484 INFO L226 Difference]: Without dead ends: 2767 [2020-08-22 21:12:57,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-08-22 21:12:57,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2767 states. [2020-08-22 21:12:58,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2767 to 2263. [2020-08-22 21:12:58,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2263 states. [2020-08-22 21:12:58,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2263 states to 2263 states and 2633 transitions. [2020-08-22 21:12:58,264 INFO L78 Accepts]: Start accepts. Automaton has 2263 states and 2633 transitions. Word has length 195 [2020-08-22 21:12:58,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:12:58,264 INFO L479 AbstractCegarLoop]: Abstraction has 2263 states and 2633 transitions. [2020-08-22 21:12:58,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 21:12:58,264 INFO L276 IsEmpty]: Start isEmpty. Operand 2263 states and 2633 transitions. [2020-08-22 21:12:58,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-08-22 21:12:58,268 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:12:58,268 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:12:58,269 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 21:12:58,269 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:12:58,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:12:58,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1026625680, now seen corresponding path program 1 times [2020-08-22 21:12:58,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:12:58,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [406907910] [2020-08-22 21:12:58,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:12:58,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:12:58,321 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:12:58,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:12:58,367 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:12:58,693 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 21:12:58,693 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 21:12:58,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 21:12:58,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 09:12:58 BoogieIcfgContainer [2020-08-22 21:12:58,884 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 21:12:58,886 INFO L168 Benchmark]: Toolchain (without parser) took 44267.45 ms. Allocated memory was 139.5 MB in the beginning and 1.0 GB in the end (delta: 877.7 MB). Free memory was 102.3 MB in the beginning and 818.8 MB in the end (delta: -716.5 MB). Peak memory consumption was 944.3 MB. Max. memory is 7.1 GB. [2020-08-22 21:12:58,887 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 21:12:58,887 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.48 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 102.1 MB in the beginning and 169.2 MB in the end (delta: -67.2 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2020-08-22 21:12:58,888 INFO L168 Benchmark]: Boogie Preprocessor took 92.12 ms. Allocated memory is still 202.4 MB. Free memory was 169.2 MB in the beginning and 165.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-08-22 21:12:58,889 INFO L168 Benchmark]: RCFGBuilder took 1179.01 ms. Allocated memory was 202.4 MB in the beginning and 236.5 MB in the end (delta: 34.1 MB). Free memory was 164.5 MB in the beginning and 175.1 MB in the end (delta: -10.6 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. [2020-08-22 21:12:58,890 INFO L168 Benchmark]: TraceAbstraction took 42301.93 ms. Allocated memory was 236.5 MB in the beginning and 1.0 GB in the end (delta: 780.7 MB). Free memory was 173.7 MB in the beginning and 818.8 MB in the end (delta: -645.2 MB). Peak memory consumption was 918.6 MB. Max. memory is 7.1 GB. [2020-08-22 21:12:58,893 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 689.48 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 102.1 MB in the beginning and 169.2 MB in the end (delta: -67.2 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.12 ms. Allocated memory is still 202.4 MB. Free memory was 169.2 MB in the beginning and 165.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1179.01 ms. Allocated memory was 202.4 MB in the beginning and 236.5 MB in the end (delta: 34.1 MB). Free memory was 164.5 MB in the beginning and 175.1 MB in the end (delta: -10.6 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 42301.93 ms. Allocated memory was 236.5 MB in the beginning and 1.0 GB in the end (delta: 780.7 MB). Free memory was 173.7 MB in the beginning and 818.8 MB in the end (delta: -645.2 MB). Peak memory consumption was 918.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 439]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=171, \old(head)=161, \old(head)=176, \old(methaneLevelCritical)=144, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=137, cleanupTimeShifts=171, head={0:0}, methaneLevelCritical=144, pumpRunning=135, systemActive=134, waterLevel=137] [L450] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=171, \old(head)=161, \old(head)=176, \old(methaneLevelCritical)=144, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=137, cleanupTimeShifts=171, head={0:0}, methaneLevelCritical=144, pumpRunning=135, systemActive=134, waterLevel=1] [L451] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=171, \old(head)=176, \old(head)=161, \old(methaneLevelCritical)=144, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=137, cleanupTimeShifts=171, head={0:0}, methaneLevelCritical=0, pumpRunning=135, systemActive=134, waterLevel=1] [L617] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=171, \old(head)=161, \old(head)=176, \old(methaneLevelCritical)=144, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=137, cleanupTimeShifts=171, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=134, waterLevel=1] [L618] int systemActive = 1; VAL [\old(cleanupTimeShifts)=171, \old(head)=161, \old(head)=176, \old(methaneLevelCritical)=144, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=137, cleanupTimeShifts=171, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L848] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=171, \old(head)=176, \old(head)=161, \old(methaneLevelCritical)=144, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=137, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L921] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L922] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L926] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L927] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L928] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L839] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L842] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L843] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L928] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L928] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L930] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L932] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L933] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L915] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L548] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L549] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L550] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L551] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L552] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L555] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L557] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L559] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L565] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L567] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L569] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L468] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L469] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L569] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L575] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L577] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L579] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L480] COND FALSE !(\read(methaneLevelCritical)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L483] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L579] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L585] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L587] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L602] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L624] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L631] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L633] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L679] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L682] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L697] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L653] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L656] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L658] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L776] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L777] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L778] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L782] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L530] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L533] COND FALSE !(waterLevel < 2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L537] retValue_acc = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L538] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L782] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L782] tmp = isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L784] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L787] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L789] retValue_acc = tmp___0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L790] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L658] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L658] tmp = isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L660] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L662] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L707] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L662] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L697] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L633] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L639] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L410] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L411] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L415] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L489] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L492] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L493] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L415] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L415] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L417] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L419] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L731] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L734] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L735] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L419] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L419] tmp___0 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L421] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L423] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L439] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 624 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 42.0s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 34.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1952 SDtfs, 3515 SDslu, 3698 SDs, 0 SdLazy, 7901 SolverSat, 1127 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 298 GetRequests, 188 SyntacticMatches, 4 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 14.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2263occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.6s AutomataMinimizationTime, 8 MinimizatonAttempts, 1818 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 1549 NumberOfCodeBlocks, 1549 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1341 ConstructedInterpolants, 0 QuantifiedInterpolants, 577966 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...