/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 10:46:38,215 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 10:46:38,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 10:46:38,236 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 10:46:38,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 10:46:38,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 10:46:38,240 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 10:46:38,253 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 10:46:38,255 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 10:46:38,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 10:46:38,259 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 10:46:38,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 10:46:38,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 10:46:38,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 10:46:38,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 10:46:38,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 10:46:38,269 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 10:46:38,272 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 10:46:38,274 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 10:46:38,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 10:46:38,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 10:46:38,282 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 10:46:38,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 10:46:38,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 10:46:38,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 10:46:38,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 10:46:38,290 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 10:46:38,294 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 10:46:38,294 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 10:46:38,296 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 10:46:38,296 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 10:46:38,297 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 10:46:38,298 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 10:46:38,299 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 10:46:38,301 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 10:46:38,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 10:46:38,303 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 10:46:38,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 10:46:38,304 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 10:46:38,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 10:46:38,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 10:46:38,307 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-07 10:46:38,327 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 10:46:38,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 10:46:38,329 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 10:46:38,329 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 10:46:38,330 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 10:46:38,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 10:46:38,330 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 10:46:38,331 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 10:46:38,331 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 10:46:38,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 10:46:38,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 10:46:38,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 10:46:38,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 10:46:38,333 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 10:46:38,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 10:46:38,333 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 10:46:38,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 10:46:38,334 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 10:46:38,334 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 10:46:38,334 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 10:46:38,334 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 10:46:38,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 10:46:38,335 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 10:46:38,335 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 10:46:38,335 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 10:46:38,335 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 10:46:38,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 10:46:38,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 10:46:38,336 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 10:46:38,336 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 10:46:38,588 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 10:46:38,609 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 10:46:38,614 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 10:46:38,616 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 10:46:38,616 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 10:46:38,617 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product38.cil.c [2020-07-07 10:46:38,690 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd11acc52/2f84c01d348f4e58a63395a8a719d65c/FLAGb11c6395c [2020-07-07 10:46:39,189 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 10:46:39,190 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product38.cil.c [2020-07-07 10:46:39,213 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd11acc52/2f84c01d348f4e58a63395a8a719d65c/FLAGb11c6395c [2020-07-07 10:46:39,517 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd11acc52/2f84c01d348f4e58a63395a8a719d65c [2020-07-07 10:46:39,526 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 10:46:39,527 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 10:46:39,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 10:46:39,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 10:46:39,532 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 10:46:39,533 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:46:39" (1/1) ... [2020-07-07 10:46:39,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dbfec79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:39, skipping insertion in model container [2020-07-07 10:46:39,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:46:39" (1/1) ... [2020-07-07 10:46:39,542 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 10:46:39,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 10:46:40,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:46:40,065 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 10:46:40,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:46:40,215 INFO L208 MainTranslator]: Completed translation [2020-07-07 10:46:40,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:40 WrapperNode [2020-07-07 10:46:40,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 10:46:40,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 10:46:40,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 10:46:40,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 10:46:40,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:40" (1/1) ... [2020-07-07 10:46:40,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:40" (1/1) ... [2020-07-07 10:46:40,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:40" (1/1) ... [2020-07-07 10:46:40,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:40" (1/1) ... [2020-07-07 10:46:40,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:40" (1/1) ... [2020-07-07 10:46:40,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:40" (1/1) ... [2020-07-07 10:46:40,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:40" (1/1) ... [2020-07-07 10:46:40,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 10:46:40,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 10:46:40,328 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 10:46:40,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 10:46:40,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 10:46:40,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 10:46:40,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 10:46:40,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 10:46:40,388 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 10:46:40,388 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 10:46:40,388 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 10:46:40,388 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 10:46:40,388 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 10:46:40,389 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 10:46:40,389 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 10:46:40,389 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 10:46:40,389 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 10:46:40,389 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 10:46:40,389 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 10:46:40,390 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-07 10:46:40,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 10:46:40,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-07 10:46:40,390 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 10:46:40,390 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 10:46:40,390 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 10:46:40,391 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-07 10:46:40,391 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 10:46:40,391 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 10:46:40,391 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 10:46:40,391 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 10:46:40,391 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 10:46:40,391 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 10:46:40,392 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-07 10:46:40,392 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-07 10:46:40,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 10:46:40,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 10:46:40,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 10:46:40,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 10:46:40,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 10:46:40,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 10:46:40,392 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 10:46:40,393 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 10:46:40,393 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 10:46:40,393 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 10:46:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 10:46:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 10:46:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 10:46:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 10:46:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 10:46:40,394 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 10:46:40,394 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 10:46:40,394 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 10:46:40,394 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 10:46:40,394 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 10:46:40,394 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 10:46:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 10:46:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 10:46:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 10:46:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 10:46:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 10:46:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 10:46:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 10:46:40,396 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 10:46:40,396 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 10:46:40,396 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-07 10:46:40,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 10:46:40,396 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 10:46:40,396 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 10:46:40,396 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-07 10:46:40,397 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-07 10:46:40,397 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 10:46:40,397 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 10:46:40,397 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 10:46:40,397 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 10:46:40,397 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-07 10:46:40,397 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-07 10:46:40,398 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 10:46:40,398 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 10:46:40,398 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 10:46:40,398 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 10:46:40,398 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 10:46:40,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 10:46:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 10:46:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 10:46:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 10:46:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 10:46:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 10:46:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 10:46:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 10:46:40,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 10:46:40,400 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 10:46:40,400 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 10:46:40,400 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 10:46:40,400 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 10:46:40,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 10:46:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 10:46:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 10:46:41,438 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 10:46:41,438 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 10:46:41,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:46:41 BoogieIcfgContainer [2020-07-07 10:46:41,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 10:46:41,445 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 10:46:41,445 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 10:46:41,448 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 10:46:41,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 10:46:39" (1/3) ... [2020-07-07 10:46:41,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7577a4a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:46:41, skipping insertion in model container [2020-07-07 10:46:41,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:40" (2/3) ... [2020-07-07 10:46:41,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7577a4a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:46:41, skipping insertion in model container [2020-07-07 10:46:41,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:46:41" (3/3) ... [2020-07-07 10:46:41,452 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product38.cil.c [2020-07-07 10:46:41,462 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 10:46:41,470 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 10:46:41,484 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 10:46:41,508 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 10:46:41,509 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 10:46:41,509 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 10:46:41,509 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 10:46:41,509 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 10:46:41,510 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 10:46:41,510 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 10:46:41,510 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 10:46:41,533 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states. [2020-07-07 10:46:41,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-07 10:46:41,543 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:46:41,544 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] [2020-07-07 10:46:41,545 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:46:41,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:46:41,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1463974042, now seen corresponding path program 1 times [2020-07-07 10:46:41,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:46:41,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826772515] [2020-07-07 10:46:41,561 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:46:41,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:42,205 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:46:42,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:42,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:42,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:42,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:42,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:46:42,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826772515] [2020-07-07 10:46:42,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:46:42,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 10:46:42,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889745926] [2020-07-07 10:46:42,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 10:46:42,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:46:42,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 10:46:42,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 10:46:42,369 INFO L87 Difference]: Start difference. First operand 173 states. Second operand 3 states. [2020-07-07 10:46:43,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:46:43,599 INFO L93 Difference]: Finished difference Result 302 states and 392 transitions. [2020-07-07 10:46:43,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 10:46:43,601 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-07 10:46:43,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:46:43,616 INFO L225 Difference]: With dead ends: 302 [2020-07-07 10:46:43,617 INFO L226 Difference]: Without dead ends: 163 [2020-07-07 10:46:43,621 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 10:46:43,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-07-07 10:46:43,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 130. [2020-07-07 10:46:43,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-07-07 10:46:43,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 151 transitions. [2020-07-07 10:46:43,714 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 151 transitions. Word has length 46 [2020-07-07 10:46:43,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:46:43,715 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 151 transitions. [2020-07-07 10:46:43,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 10:46:43,715 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 151 transitions. [2020-07-07 10:46:43,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-07 10:46:43,718 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:46:43,719 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] [2020-07-07 10:46:43,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 10:46:43,719 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:46:43,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:46:43,720 INFO L82 PathProgramCache]: Analyzing trace with hash 842471544, now seen corresponding path program 1 times [2020-07-07 10:46:43,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:46:43,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026973804] [2020-07-07 10:46:43,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:46:43,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:44,103 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:46:44,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:44,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:44,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:44,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:44,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:44,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:46:44,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026973804] [2020-07-07 10:46:44,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:46:44,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 10:46:44,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421785688] [2020-07-07 10:46:44,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 10:46:44,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:46:44,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 10:46:44,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 10:46:44,144 INFO L87 Difference]: Start difference. First operand 130 states and 151 transitions. Second operand 4 states. [2020-07-07 10:46:44,562 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:46:45,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:46:45,416 INFO L93 Difference]: Finished difference Result 231 states and 279 transitions. [2020-07-07 10:46:45,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 10:46:45,417 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-07-07 10:46:45,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:46:45,421 INFO L225 Difference]: With dead ends: 231 [2020-07-07 10:46:45,421 INFO L226 Difference]: Without dead ends: 147 [2020-07-07 10:46:45,423 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 10:46:45,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-07-07 10:46:45,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 121. [2020-07-07 10:46:45,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-07-07 10:46:45,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 139 transitions. [2020-07-07 10:46:45,458 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 139 transitions. Word has length 47 [2020-07-07 10:46:45,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:46:45,458 INFO L479 AbstractCegarLoop]: Abstraction has 121 states and 139 transitions. [2020-07-07 10:46:45,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 10:46:45,459 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 139 transitions. [2020-07-07 10:46:45,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-07 10:46:45,461 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:46:45,461 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:46:45,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 10:46:45,461 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:46:45,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:46:45,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1913748360, now seen corresponding path program 1 times [2020-07-07 10:46:45,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:46:45,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440216522] [2020-07-07 10:46:45,463 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:46:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:45,748 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:46:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:45,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:45,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:45,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:45,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:45,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:45,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:45,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:46:45,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440216522] [2020-07-07 10:46:45,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:46:45,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 10:46:45,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269842586] [2020-07-07 10:46:45,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 10:46:45,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:46:45,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 10:46:45,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-07 10:46:45,812 INFO L87 Difference]: Start difference. First operand 121 states and 139 transitions. Second operand 8 states. [2020-07-07 10:46:46,251 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:46:46,576 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:46:46,826 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:46:47,070 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:46:48,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:46:48,266 INFO L93 Difference]: Finished difference Result 244 states and 297 transitions. [2020-07-07 10:46:48,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-07 10:46:48,267 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-07-07 10:46:48,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:46:48,271 INFO L225 Difference]: With dead ends: 244 [2020-07-07 10:46:48,271 INFO L226 Difference]: Without dead ends: 147 [2020-07-07 10:46:48,272 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-07-07 10:46:48,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-07-07 10:46:48,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 121. [2020-07-07 10:46:48,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-07-07 10:46:48,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 138 transitions. [2020-07-07 10:46:48,307 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 138 transitions. Word has length 52 [2020-07-07 10:46:48,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:46:48,307 INFO L479 AbstractCegarLoop]: Abstraction has 121 states and 138 transitions. [2020-07-07 10:46:48,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 10:46:48,307 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 138 transitions. [2020-07-07 10:46:48,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-07 10:46:48,310 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:46:48,310 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] [2020-07-07 10:46:48,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 10:46:48,311 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:46:48,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:46:48,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1607213040, now seen corresponding path program 1 times [2020-07-07 10:46:48,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:46:48,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677841478] [2020-07-07 10:46:48,312 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:46:48,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:48,559 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:46:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:48,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:48,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:48,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:48,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:48,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:48,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:48,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:48,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:48,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:48,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:46:48,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677841478] [2020-07-07 10:46:48,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:46:48,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 10:46:48,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199072595] [2020-07-07 10:46:48,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 10:46:48,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:46:48,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 10:46:48,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-07 10:46:48,719 INFO L87 Difference]: Start difference. First operand 121 states and 138 transitions. Second operand 6 states. [2020-07-07 10:46:49,093 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:46:50,228 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:46:50,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:46:50,843 INFO L93 Difference]: Finished difference Result 341 states and 419 transitions. [2020-07-07 10:46:50,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 10:46:50,845 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-07-07 10:46:50,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:46:50,848 INFO L225 Difference]: With dead ends: 341 [2020-07-07 10:46:50,848 INFO L226 Difference]: Without dead ends: 244 [2020-07-07 10:46:50,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-07-07 10:46:50,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2020-07-07 10:46:50,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 201. [2020-07-07 10:46:50,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-07-07 10:46:50,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 227 transitions. [2020-07-07 10:46:50,898 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 227 transitions. Word has length 65 [2020-07-07 10:46:50,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:46:50,899 INFO L479 AbstractCegarLoop]: Abstraction has 201 states and 227 transitions. [2020-07-07 10:46:50,899 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 10:46:50,899 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 227 transitions. [2020-07-07 10:46:50,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-07-07 10:46:50,901 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:46:50,901 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] [2020-07-07 10:46:50,901 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 10:46:50,902 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:46:50,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:46:50,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1567646189, now seen corresponding path program 1 times [2020-07-07 10:46:50,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:46:50,902 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299928205] [2020-07-07 10:46:50,903 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:46:50,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:51,252 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:46:51,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:51,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:51,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:51,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:51,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:51,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:51,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:51,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:51,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:51,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:51,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:46:51,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299928205] [2020-07-07 10:46:51,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:46:51,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-07 10:46:51,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970324040] [2020-07-07 10:46:51,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-07 10:46:51,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:46:51,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-07 10:46:51,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-07-07 10:46:51,399 INFO L87 Difference]: Start difference. First operand 201 states and 227 transitions. Second operand 12 states. [2020-07-07 10:46:52,055 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:46:52,380 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:46:52,656 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:46:52,898 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:46:53,433 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:46:54,394 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:46:54,679 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 10:46:54,932 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 10:46:55,175 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 10:46:55,444 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 10:46:55,723 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 10:46:56,934 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:46:57,313 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:46:57,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:46:57,842 INFO L93 Difference]: Finished difference Result 707 states and 910 transitions. [2020-07-07 10:46:57,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-07 10:46:57,842 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 79 [2020-07-07 10:46:57,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:46:57,849 INFO L225 Difference]: With dead ends: 707 [2020-07-07 10:46:57,849 INFO L226 Difference]: Without dead ends: 530 [2020-07-07 10:46:57,851 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-07-07 10:46:57,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-07-07 10:46:57,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 468. [2020-07-07 10:46:57,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2020-07-07 10:46:57,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 547 transitions. [2020-07-07 10:46:57,963 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 547 transitions. Word has length 79 [2020-07-07 10:46:57,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:46:57,964 INFO L479 AbstractCegarLoop]: Abstraction has 468 states and 547 transitions. [2020-07-07 10:46:57,964 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-07 10:46:57,964 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 547 transitions. [2020-07-07 10:46:57,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-07 10:46:57,968 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:46:57,968 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:46:57,969 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 10:46:57,969 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:46:57,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:46:57,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1919635093, now seen corresponding path program 1 times [2020-07-07 10:46:57,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:46:57,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555626269] [2020-07-07 10:46:57,970 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:46:57,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,277 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:46:58,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,524 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-07 10:46:58,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555626269] [2020-07-07 10:46:58,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710226880] [2020-07-07 10:46:58,526 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:46:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:58,762 INFO L264 TraceCheckSpWp]: Trace formula consists of 857 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-07 10:46:58,774 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:46:58,909 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:46:58,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 10:46:58,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 17 [2020-07-07 10:46:58,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239391338] [2020-07-07 10:46:58,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 10:46:58,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:46:58,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 10:46:58,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-07-07 10:46:58,912 INFO L87 Difference]: Start difference. First operand 468 states and 547 transitions. Second operand 8 states. [2020-07-07 10:47:00,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:00,310 INFO L93 Difference]: Finished difference Result 1212 states and 1567 transitions. [2020-07-07 10:47:00,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-07 10:47:00,310 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 136 [2020-07-07 10:47:00,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:00,319 INFO L225 Difference]: With dead ends: 1212 [2020-07-07 10:47:00,319 INFO L226 Difference]: Without dead ends: 876 [2020-07-07 10:47:00,321 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 180 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2020-07-07 10:47:00,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2020-07-07 10:47:00,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 795. [2020-07-07 10:47:00,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 795 states. [2020-07-07 10:47:00,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 969 transitions. [2020-07-07 10:47:00,530 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 969 transitions. Word has length 136 [2020-07-07 10:47:00,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:00,530 INFO L479 AbstractCegarLoop]: Abstraction has 795 states and 969 transitions. [2020-07-07 10:47:00,530 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 10:47:00,531 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 969 transitions. [2020-07-07 10:47:00,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-07 10:47:00,533 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:00,534 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:00,747 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-07-07 10:47:00,748 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:00,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:00,748 INFO L82 PathProgramCache]: Analyzing trace with hash -309164061, now seen corresponding path program 1 times [2020-07-07 10:47:00,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:00,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821515923] [2020-07-07 10:47:00,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:00,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,059 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:01,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,220 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-07 10:47:01,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821515923] [2020-07-07 10:47:01,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378280541] [2020-07-07 10:47:01,221 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:01,435 INFO L264 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-07 10:47:01,439 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:47:01,518 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-07 10:47:01,519 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 10:47:01,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2020-07-07 10:47:01,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080786223] [2020-07-07 10:47:01,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 10:47:01,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:01,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 10:47:01,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-07-07 10:47:01,521 INFO L87 Difference]: Start difference. First operand 795 states and 969 transitions. Second operand 6 states. [2020-07-07 10:47:01,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:01,862 INFO L93 Difference]: Finished difference Result 816 states and 992 transitions. [2020-07-07 10:47:01,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 10:47:01,862 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2020-07-07 10:47:01,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:01,869 INFO L225 Difference]: With dead ends: 816 [2020-07-07 10:47:01,869 INFO L226 Difference]: Without dead ends: 813 [2020-07-07 10:47:01,873 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-07-07 10:47:01,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2020-07-07 10:47:02,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 795. [2020-07-07 10:47:02,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 795 states. [2020-07-07 10:47:02,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 965 transitions. [2020-07-07 10:47:02,069 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 965 transitions. Word has length 128 [2020-07-07 10:47:02,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:02,070 INFO L479 AbstractCegarLoop]: Abstraction has 795 states and 965 transitions. [2020-07-07 10:47:02,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 10:47:02,070 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 965 transitions. [2020-07-07 10:47:02,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-07 10:47:02,075 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:02,075 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:02,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:02,291 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:02,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:02,292 INFO L82 PathProgramCache]: Analyzing trace with hash 692927243, now seen corresponding path program 1 times [2020-07-07 10:47:02,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:02,293 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56193394] [2020-07-07 10:47:02,293 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,590 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:02,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,753 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-07 10:47:02,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56193394] [2020-07-07 10:47:02,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760073899] [2020-07-07 10:47:02,754 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:02,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,942 INFO L264 TraceCheckSpWp]: Trace formula consists of 847 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-07 10:47:02,959 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:47:03,040 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-07 10:47:03,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 10:47:03,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 10 [2020-07-07 10:47:03,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277615863] [2020-07-07 10:47:03,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 10:47:03,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:03,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 10:47:03,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-07 10:47:03,044 INFO L87 Difference]: Start difference. First operand 795 states and 965 transitions. Second operand 6 states. [2020-07-07 10:47:03,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:03,319 INFO L93 Difference]: Finished difference Result 1586 states and 1966 transitions. [2020-07-07 10:47:03,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 10:47:03,320 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2020-07-07 10:47:03,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:03,327 INFO L225 Difference]: With dead ends: 1586 [2020-07-07 10:47:03,327 INFO L226 Difference]: Without dead ends: 815 [2020-07-07 10:47:03,332 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 172 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-07-07 10:47:03,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2020-07-07 10:47:03,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 815. [2020-07-07 10:47:03,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 815 states. [2020-07-07 10:47:03,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 989 transitions. [2020-07-07 10:47:03,582 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 989 transitions. Word has length 132 [2020-07-07 10:47:03,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:03,583 INFO L479 AbstractCegarLoop]: Abstraction has 815 states and 989 transitions. [2020-07-07 10:47:03,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 10:47:03,584 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 989 transitions. [2020-07-07 10:47:03,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-07 10:47:03,588 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:03,588 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:03,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:03,804 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:03,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:03,805 INFO L82 PathProgramCache]: Analyzing trace with hash -2035282103, now seen corresponding path program 1 times [2020-07-07 10:47:03,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:03,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678649888] [2020-07-07 10:47:03,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:03,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:04,179 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:04,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:04,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:04,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:04,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:04,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:04,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:04,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:04,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:04,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:04,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:04,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:04,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:04,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:04,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:04,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:04,435 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-07 10:47:04,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678649888] [2020-07-07 10:47:04,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299904865] [2020-07-07 10:47:04,436 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:04,691 INFO L264 TraceCheckSpWp]: Trace formula consists of 848 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-07 10:47:04,699 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:47:04,843 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-07 10:47:04,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 10:47:04,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2020-07-07 10:47:04,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055847706] [2020-07-07 10:47:04,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 10:47:04,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:04,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 10:47:04,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-07-07 10:47:04,847 INFO L87 Difference]: Start difference. First operand 815 states and 989 transitions. Second operand 5 states. [2020-07-07 10:47:05,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:05,077 INFO L93 Difference]: Finished difference Result 1473 states and 1822 transitions. [2020-07-07 10:47:05,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 10:47:05,078 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 132 [2020-07-07 10:47:05,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:05,083 INFO L225 Difference]: With dead ends: 1473 [2020-07-07 10:47:05,083 INFO L226 Difference]: Without dead ends: 682 [2020-07-07 10:47:05,088 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-07-07 10:47:05,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2020-07-07 10:47:05,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 682. [2020-07-07 10:47:05,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 682 states. [2020-07-07 10:47:05,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 813 transitions. [2020-07-07 10:47:05,307 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 813 transitions. Word has length 132 [2020-07-07 10:47:05,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:05,308 INFO L479 AbstractCegarLoop]: Abstraction has 682 states and 813 transitions. [2020-07-07 10:47:05,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 10:47:05,308 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 813 transitions. [2020-07-07 10:47:05,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-07 10:47:05,312 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:05,312 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:05,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:05,527 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:05,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:05,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1647665506, now seen corresponding path program 1 times [2020-07-07 10:47:05,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:05,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006413436] [2020-07-07 10:47:05,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:05,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,855 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:05,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:06,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:06,027 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-07 10:47:06,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006413436] [2020-07-07 10:47:06,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221118272] [2020-07-07 10:47:06,028 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:06,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:06,211 INFO L264 TraceCheckSpWp]: Trace formula consists of 857 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-07 10:47:06,216 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:47:06,291 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:06,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 10:47:06,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 14 [2020-07-07 10:47:06,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916471450] [2020-07-07 10:47:06,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-07 10:47:06,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:06,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-07 10:47:06,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2020-07-07 10:47:06,294 INFO L87 Difference]: Start difference. First operand 682 states and 813 transitions. Second operand 14 states. [2020-07-07 10:47:06,841 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:07,460 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:08,676 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2020-07-07 10:47:08,951 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:09,197 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:09,643 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-07-07 10:47:09,901 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 10:47:10,143 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 10:47:11,261 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:12,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:12,272 INFO L93 Difference]: Finished difference Result 1376 states and 1736 transitions. [2020-07-07 10:47:12,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-07 10:47:12,273 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 136 [2020-07-07 10:47:12,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:12,281 INFO L225 Difference]: With dead ends: 1376 [2020-07-07 10:47:12,282 INFO L226 Difference]: Without dead ends: 781 [2020-07-07 10:47:12,287 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 185 SyntacticMatches, 5 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=319, Invalid=803, Unknown=0, NotChecked=0, Total=1122 [2020-07-07 10:47:12,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2020-07-07 10:47:12,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 664. [2020-07-07 10:47:12,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 664 states. [2020-07-07 10:47:12,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 791 transitions. [2020-07-07 10:47:12,481 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 791 transitions. Word has length 136 [2020-07-07 10:47:12,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:12,481 INFO L479 AbstractCegarLoop]: Abstraction has 664 states and 791 transitions. [2020-07-07 10:47:12,482 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-07 10:47:12,482 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 791 transitions. [2020-07-07 10:47:12,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-07-07 10:47:12,487 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:12,488 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:12,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-07-07 10:47:12,704 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:12,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:12,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1788025149, now seen corresponding path program 2 times [2020-07-07 10:47:12,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:12,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038594643] [2020-07-07 10:47:12,705 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:12,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:47:12,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:47:13,019 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-07 10:47:13,020 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 10:47:13,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-07 10:47:13,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 10:47:13 BoogieIcfgContainer [2020-07-07 10:47:13,227 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 10:47:13,229 INFO L168 Benchmark]: Toolchain (without parser) took 33701.51 ms. Allocated memory was 139.5 MB in the beginning and 652.2 MB in the end (delta: 512.8 MB). Free memory was 103.6 MB in the beginning and 539.9 MB in the end (delta: -436.3 MB). Peak memory consumption was 533.9 MB. Max. memory is 7.1 GB. [2020-07-07 10:47:13,237 INFO L168 Benchmark]: CDTParser took 0.57 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 10:47:13,241 INFO L168 Benchmark]: CACSL2BoogieTranslator took 687.51 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 103.4 MB in the beginning and 173.5 MB in the end (delta: -70.1 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. [2020-07-07 10:47:13,243 INFO L168 Benchmark]: Boogie Preprocessor took 104.91 ms. Allocated memory is still 204.5 MB. Free memory was 173.5 MB in the beginning and 169.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-07 10:47:13,244 INFO L168 Benchmark]: RCFGBuilder took 1115.97 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 169.4 MB in the beginning and 199.3 MB in the end (delta: -29.9 MB). Peak memory consumption was 83.2 MB. Max. memory is 7.1 GB. [2020-07-07 10:47:13,249 INFO L168 Benchmark]: TraceAbstraction took 31782.40 ms. Allocated memory was 237.0 MB in the beginning and 652.2 MB in the end (delta: 415.2 MB). Free memory was 199.3 MB in the beginning and 539.9 MB in the end (delta: -340.6 MB). Peak memory consumption was 532.1 MB. Max. memory is 7.1 GB. [2020-07-07 10:47:13,254 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 687.51 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 103.4 MB in the beginning and 173.5 MB in the end (delta: -70.1 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.91 ms. Allocated memory is still 204.5 MB. Free memory was 173.5 MB in the beginning and 169.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1115.97 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 169.4 MB in the beginning and 199.3 MB in the end (delta: -29.9 MB). Peak memory consumption was 83.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 31782.40 ms. Allocated memory was 237.0 MB in the beginning and 652.2 MB in the end (delta: 415.2 MB). Free memory was 199.3 MB in the beginning and 539.9 MB in the end (delta: -340.6 MB). Peak memory consumption was 532.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 247]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L149] int waterLevel = 1; [L150] int methaneLevelCritical = 0; [L349] int pumpRunning = 0; [L350] int systemActive = 1; [L704] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=173, \old(head)=165, \old(head)=176, \old(methaneLevelCritical)=144, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=138, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] int retValue_acc ; [L122] 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] [L126] 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] [L127] 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] [L128] 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] [L927] int retValue_acc ; [L930] retValue_acc = 1 [L931] 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] [L128] 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] [L128] tmp = valid_product() [L130] 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] [L132] 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] [L133] 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] [L112] 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] [L281] int splverifierCounter ; [L282] int tmp ; [L283] int tmp___0 ; [L284] int tmp___1 ; [L285] int tmp___2 ; [L288] 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] [L290] 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] [L292] 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] [L298] tmp = __VERIFIER_nondet_int() [L300] 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] [L302] 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] [L167] COND TRUE waterLevel < 2 [L168] 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] [L302] 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] [L308] tmp___0 = __VERIFIER_nondet_int() [L310] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L318] tmp___2 = __VERIFIER_nondet_int() [L320] COND FALSE !(\read(tmp___2)) [L326] tmp___1 = __VERIFIER_nondet_int() [L328] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L335] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L356] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L363] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L365] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L411] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L414] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L429] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L385] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L388] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L390] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L508] int retValue_acc ; [L509] int tmp ; [L510] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L514] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L229] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L232] COND FALSE !(waterLevel < 2) [L236] retValue_acc = 0 [L237] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L514] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L514] tmp = isHighWaterSensorDry() [L516] COND FALSE !(\read(tmp)) [L519] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L521] retValue_acc = tmp___0 [L522] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L390] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L390] tmp = isHighWaterLevel() [L392] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L394] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L439] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L394] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L429] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L365] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L371] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L254] int tmp ; [L255] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L259] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L220] int retValue_acc ; [L223] retValue_acc = waterLevel [L224] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L259] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L259] tmp = getWaterLevel() [L261] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L371] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L335] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L290] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L292] 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=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L298] tmp = __VERIFIER_nondet_int() [L300] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L308] tmp___0 = __VERIFIER_nondet_int() [L310] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L318] tmp___2 = __VERIFIER_nondet_int() [L320] COND FALSE !(\read(tmp___2)) [L326] tmp___1 = __VERIFIER_nondet_int() [L328] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L335] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L356] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L358] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L155] COND TRUE waterLevel > 0 [L156] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L358] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L363] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L365] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L411] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L414] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L416] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L452] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L456] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L188] int retValue_acc ; [L191] retValue_acc = methaneLevelCritical [L192] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L456] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L456] retValue_acc = isMethaneLevelCritical() [L458] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L416] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L416] tmp = isMethaneAlarm() [L418] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L424] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L385] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L388] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L403] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L424] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L365] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L371] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L254] int tmp ; [L255] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L259] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L220] int retValue_acc ; [L223] retValue_acc = waterLevel [L224] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L259] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L259] tmp = getWaterLevel() [L261] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L371] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L335] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L290] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L292] 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=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L298] tmp = __VERIFIER_nondet_int() [L300] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L308] tmp___0 = __VERIFIER_nondet_int() [L310] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L318] tmp___2 = __VERIFIER_nondet_int() [L320] COND FALSE !(\read(tmp___2)) [L326] tmp___1 = __VERIFIER_nondet_int() [L328] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L335] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L356] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L358] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L155] COND TRUE waterLevel > 0 [L156] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L358] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L363] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L365] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L411] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L414] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L416] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L452] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L456] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L188] int retValue_acc ; [L191] retValue_acc = methaneLevelCritical [L192] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L456] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L456] retValue_acc = isMethaneLevelCritical() [L458] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L416] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L416] tmp = isMethaneAlarm() [L418] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L424] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L385] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L388] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L403] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L424] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L365] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L371] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L254] int tmp ; [L255] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L259] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L220] int retValue_acc ; [L223] retValue_acc = waterLevel [L224] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L259] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L259] tmp = getWaterLevel() [L261] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L263] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L463] int retValue_acc ; [L466] retValue_acc = pumpRunning [L467] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L263] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L263] tmp___0 = isPumpRunning() [L265] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L267] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L247] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 229 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 31.5s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 21.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1391 SDtfs, 2534 SDslu, 2343 SDs, 0 SdLazy, 5230 SolverSat, 1658 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1118 GetRequests, 975 SyntacticMatches, 8 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 10.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=815occurred 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: 1.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 406 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 1805 NumberOfCodeBlocks, 1805 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1602 ConstructedInterpolants, 0 QuantifiedInterpolants, 473713 SizeOfPredicates, 14 NumberOfNonLiveVariables, 4250 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 15 InterpolantComputations, 9 PerfectInterpolantSequences, 250/282 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...