/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 00:57:23,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 00:57:23,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 00:57:23,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 00:57:23,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 00:57:23,253 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 00:57:23,257 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 00:57:23,262 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 00:57:23,264 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 00:57:23,268 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 00:57:23,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 00:57:23,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 00:57:23,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 00:57:23,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 00:57:23,279 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 00:57:23,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 00:57:23,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 00:57:23,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 00:57:23,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 00:57:23,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 00:57:23,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 00:57:23,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 00:57:23,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 00:57:23,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 00:57:23,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 00:57:23,306 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 00:57:23,306 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 00:57:23,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 00:57:23,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 00:57:23,310 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 00:57:23,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 00:57:23,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 00:57:23,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 00:57:23,316 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 00:57:23,317 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 00:57:23,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 00:57:23,318 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 00:57:23,318 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 00:57:23,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 00:57:23,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 00:57:23,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 00:57:23,321 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 00:57:23,358 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 00:57:23,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 00:57:23,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 00:57:23,363 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 00:57:23,363 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 00:57:23,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 00:57:23,363 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 00:57:23,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 00:57:23,364 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 00:57:23,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 00:57:23,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 00:57:23,367 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 00:57:23,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 00:57:23,368 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 00:57:23,368 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 00:57:23,368 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 00:57:23,368 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 00:57:23,369 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 00:57:23,369 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 00:57:23,369 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 00:57:23,369 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 00:57:23,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 00:57:23,370 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 00:57:23,370 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 00:57:23,370 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 00:57:23,371 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 00:57:23,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 00:57:23,371 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 00:57:23,371 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 00:57:23,371 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-20 00:57:23,654 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 00:57:23,668 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 00:57:23,671 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 00:57:23,673 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 00:57:23,673 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 00:57:23,674 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product55.cil.c [2020-07-20 00:57:23,747 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/949232fd9/7aaf6917c3154428a64dba24a67ec61e/FLAG06b19c197 [2020-07-20 00:57:24,268 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 00:57:24,269 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product55.cil.c [2020-07-20 00:57:24,283 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/949232fd9/7aaf6917c3154428a64dba24a67ec61e/FLAG06b19c197 [2020-07-20 00:57:24,585 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/949232fd9/7aaf6917c3154428a64dba24a67ec61e [2020-07-20 00:57:24,595 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 00:57:24,597 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 00:57:24,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 00:57:24,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 00:57:24,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 00:57:24,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:57:24" (1/1) ... [2020-07-20 00:57:24,606 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cc77cd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:57:24, skipping insertion in model container [2020-07-20 00:57:24,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:57:24" (1/1) ... [2020-07-20 00:57:24,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 00:57:24,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 00:57:25,036 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 00:57:25,148 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 00:57:25,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 00:57:25,343 INFO L208 MainTranslator]: Completed translation [2020-07-20 00:57:25,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:57:25 WrapperNode [2020-07-20 00:57:25,343 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 00:57:25,344 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 00:57:25,344 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 00:57:25,344 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 00:57:25,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:57:25" (1/1) ... [2020-07-20 00:57:25,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:57:25" (1/1) ... [2020-07-20 00:57:25,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:57:25" (1/1) ... [2020-07-20 00:57:25,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:57:25" (1/1) ... [2020-07-20 00:57:25,410 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:57:25" (1/1) ... [2020-07-20 00:57:25,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:57:25" (1/1) ... [2020-07-20 00:57:25,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:57:25" (1/1) ... [2020-07-20 00:57:25,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 00:57:25,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 00:57:25,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 00:57:25,446 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 00:57:25,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:57:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 00:57:25,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 00:57:25,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 00:57:25,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 00:57:25,513 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 00:57:25,513 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 00:57:25,513 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 00:57:25,514 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 00:57:25,514 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 00:57:25,514 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 00:57:25,514 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 00:57:25,515 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 00:57:25,515 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 00:57:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 00:57:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 00:57:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-20 00:57:25,517 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 00:57:25,517 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 00:57:25,517 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 00:57:25,517 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 00:57:25,517 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-20 00:57:25,518 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 00:57:25,518 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 00:57:25,518 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 00:57:25,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 00:57:25,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 00:57:25,520 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 00:57:25,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 00:57:25,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-20 00:57:25,520 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-20 00:57:25,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 00:57:25,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 00:57:25,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 00:57:25,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 00:57:25,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 00:57:25,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 00:57:25,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-07-20 00:57:25,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-07-20 00:57:25,521 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 00:57:25,521 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 00:57:25,522 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 00:57:25,522 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 00:57:25,522 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 00:57:25,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 00:57:25,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 00:57:25,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 00:57:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 00:57:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 00:57:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 00:57:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 00:57:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 00:57:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 00:57:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 00:57:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 00:57:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 00:57:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 00:57:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 00:57:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 00:57:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-20 00:57:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 00:57:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-20 00:57:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 00:57:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 00:57:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 00:57:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 00:57:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 00:57:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 00:57:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 00:57:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-07-20 00:57:25,528 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 00:57:25,528 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 00:57:25,528 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 00:57:25,528 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 00:57:25,529 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-20 00:57:25,529 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-20 00:57:25,529 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 00:57:25,529 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 00:57:25,529 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 00:57:25,530 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 00:57:25,530 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 00:57:25,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 00:57:25,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 00:57:25,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 00:57:25,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 00:57:25,532 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 00:57:25,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 00:57:25,532 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 00:57:25,532 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 00:57:25,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 00:57:25,533 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 00:57:25,534 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 00:57:25,534 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 00:57:25,534 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 00:57:25,534 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-07-20 00:57:25,534 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 00:57:25,534 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 00:57:25,534 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 00:57:25,535 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 00:57:25,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 00:57:25,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 00:57:25,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 00:57:26,647 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 00:57:26,647 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 00:57:26,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:57:26 BoogieIcfgContainer [2020-07-20 00:57:26,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 00:57:26,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 00:57:26,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 00:57:26,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 00:57:26,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 12:57:24" (1/3) ... [2020-07-20 00:57:26,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@571dbce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:57:26, skipping insertion in model container [2020-07-20 00:57:26,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:57:25" (2/3) ... [2020-07-20 00:57:26,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@571dbce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:57:26, skipping insertion in model container [2020-07-20 00:57:26,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:57:26" (3/3) ... [2020-07-20 00:57:26,666 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product55.cil.c [2020-07-20 00:57:26,677 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 00:57:26,689 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 00:57:26,708 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 00:57:26,749 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 00:57:26,749 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 00:57:26,750 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 00:57:26,751 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 00:57:26,752 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 00:57:26,752 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 00:57:26,752 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 00:57:26,754 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 00:57:26,786 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states. [2020-07-20 00:57:26,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-20 00:57:26,804 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:57:26,806 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 00:57:26,806 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:57:26,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:57:26,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1134611440, now seen corresponding path program 1 times [2020-07-20 00:57:26,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:57:26,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447199652] [2020-07-20 00:57:26,827 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5f855b49 [2020-07-20 00:57:27,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:27,575 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:57:27,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:27,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:27,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:27,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:27,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:27,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:57:27,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447199652] [2020-07-20 00:57:27,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:57:27,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 00:57:27,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998309319] [2020-07-20 00:57:27,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 00:57:27,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:57:27,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 00:57:27,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-20 00:57:27,688 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 4 states. [2020-07-20 00:57:28,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:57:28,967 INFO L93 Difference]: Finished difference Result 343 states and 449 transitions. [2020-07-20 00:57:28,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 00:57:28,969 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-07-20 00:57:28,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:57:28,993 INFO L225 Difference]: With dead ends: 343 [2020-07-20 00:57:28,993 INFO L226 Difference]: Without dead ends: 190 [2020-07-20 00:57:29,002 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-20 00:57:29,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-07-20 00:57:29,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 154. [2020-07-20 00:57:29,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-07-20 00:57:29,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 184 transitions. [2020-07-20 00:57:29,113 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 184 transitions. Word has length 51 [2020-07-20 00:57:29,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:57:29,114 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 184 transitions. [2020-07-20 00:57:29,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 00:57:29,114 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 184 transitions. [2020-07-20 00:57:29,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 00:57:29,118 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:57:29,118 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 00:57:29,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 00:57:29,119 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:57:29,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:57:29,119 INFO L82 PathProgramCache]: Analyzing trace with hash -179918531, now seen corresponding path program 1 times [2020-07-20 00:57:29,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:57:29,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823676624] [2020-07-20 00:57:29,120 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5f855b49 [2020-07-20 00:57:29,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:29,450 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:57:29,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:29,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:29,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:29,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:29,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:29,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:29,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:57:29,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823676624] [2020-07-20 00:57:29,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:57:29,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 00:57:29,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352925381] [2020-07-20 00:57:29,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 00:57:29,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:57:29,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 00:57:29,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 00:57:29,512 INFO L87 Difference]: Start difference. First operand 154 states and 184 transitions. Second operand 5 states. [2020-07-20 00:57:30,018 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-20 00:57:31,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:57:31,078 INFO L93 Difference]: Finished difference Result 282 states and 352 transitions. [2020-07-20 00:57:31,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 00:57:31,079 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-07-20 00:57:31,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:57:31,083 INFO L225 Difference]: With dead ends: 282 [2020-07-20 00:57:31,086 INFO L226 Difference]: Without dead ends: 180 [2020-07-20 00:57:31,088 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-20 00:57:31,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-07-20 00:57:31,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 145. [2020-07-20 00:57:31,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-07-20 00:57:31,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 172 transitions. [2020-07-20 00:57:31,134 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 172 transitions. Word has length 52 [2020-07-20 00:57:31,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:57:31,134 INFO L479 AbstractCegarLoop]: Abstraction has 145 states and 172 transitions. [2020-07-20 00:57:31,134 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 00:57:31,134 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 172 transitions. [2020-07-20 00:57:31,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-20 00:57:31,137 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:57:31,137 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] [2020-07-20 00:57:31,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-20 00:57:31,138 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:57:31,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:57:31,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1227863388, now seen corresponding path program 1 times [2020-07-20 00:57:31,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:57:31,139 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857370388] [2020-07-20 00:57:31,139 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5f855b49 [2020-07-20 00:57:31,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:31,469 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:57:31,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:31,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:31,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:31,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:31,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:31,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:31,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:31,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:57:31,601 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857370388] [2020-07-20 00:57:31,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:57:31,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-20 00:57:31,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317138871] [2020-07-20 00:57:31,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-20 00:57:31,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:57:31,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-20 00:57:31,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-20 00:57:31,606 INFO L87 Difference]: Start difference. First operand 145 states and 172 transitions. Second operand 9 states. [2020-07-20 00:57:32,041 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-20 00:57:32,346 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-20 00:57:32,621 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-20 00:57:32,855 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-20 00:57:33,667 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-20 00:57:35,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:57:35,897 INFO L93 Difference]: Finished difference Result 487 states and 618 transitions. [2020-07-20 00:57:35,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-20 00:57:35,898 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 56 [2020-07-20 00:57:35,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:57:35,903 INFO L225 Difference]: With dead ends: 487 [2020-07-20 00:57:35,904 INFO L226 Difference]: Without dead ends: 370 [2020-07-20 00:57:35,905 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-07-20 00:57:35,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-07-20 00:57:35,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 305. [2020-07-20 00:57:35,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-07-20 00:57:36,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 374 transitions. [2020-07-20 00:57:36,021 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 374 transitions. Word has length 56 [2020-07-20 00:57:36,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:57:36,022 INFO L479 AbstractCegarLoop]: Abstraction has 305 states and 374 transitions. [2020-07-20 00:57:36,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-20 00:57:36,025 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 374 transitions. [2020-07-20 00:57:36,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-07-20 00:57:36,031 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:57:36,031 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 00:57:36,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-20 00:57:36,031 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:57:36,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:57:36,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1601957820, now seen corresponding path program 1 times [2020-07-20 00:57:36,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:57:36,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936987132] [2020-07-20 00:57:36,035 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5f855b49 [2020-07-20 00:57:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:36,332 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:57:36,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:36,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:36,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:36,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:36,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:36,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:36,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:57:36,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936987132] [2020-07-20 00:57:36,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:57:36,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-20 00:57:36,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373737369] [2020-07-20 00:57:36,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-20 00:57:36,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:57:36,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-20 00:57:36,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-20 00:57:36,452 INFO L87 Difference]: Start difference. First operand 305 states and 374 transitions. Second operand 9 states. [2020-07-20 00:57:36,892 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-20 00:57:37,901 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-20 00:57:38,362 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-20 00:57:38,657 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-20 00:57:38,951 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-20 00:57:40,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:57:40,633 INFO L93 Difference]: Finished difference Result 973 states and 1285 transitions. [2020-07-20 00:57:40,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-20 00:57:40,634 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2020-07-20 00:57:40,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:57:40,641 INFO L225 Difference]: With dead ends: 973 [2020-07-20 00:57:40,642 INFO L226 Difference]: Without dead ends: 696 [2020-07-20 00:57:40,644 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2020-07-20 00:57:40,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-07-20 00:57:40,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 558. [2020-07-20 00:57:40,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2020-07-20 00:57:40,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 688 transitions. [2020-07-20 00:57:40,778 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 688 transitions. Word has length 62 [2020-07-20 00:57:40,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:57:40,778 INFO L479 AbstractCegarLoop]: Abstraction has 558 states and 688 transitions. [2020-07-20 00:57:40,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-20 00:57:40,779 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 688 transitions. [2020-07-20 00:57:40,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-07-20 00:57:40,781 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:57:40,782 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 00:57:40,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-20 00:57:40,782 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:57:40,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:57:40,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1204720808, now seen corresponding path program 1 times [2020-07-20 00:57:40,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:57:40,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146446073] [2020-07-20 00:57:40,783 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5f855b49 [2020-07-20 00:57:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:41,050 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:57:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:41,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:41,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:41,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:41,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:41,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:41,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:41,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:57:41,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146446073] [2020-07-20 00:57:41,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:57:41,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-20 00:57:41,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710161040] [2020-07-20 00:57:41,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-20 00:57:41,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:57:41,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-20 00:57:41,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-07-20 00:57:41,166 INFO L87 Difference]: Start difference. First operand 558 states and 688 transitions. Second operand 10 states. [2020-07-20 00:57:41,632 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-20 00:57:42,713 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-20 00:57:42,985 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-20 00:57:43,235 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-20 00:57:43,966 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-20 00:57:45,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:57:45,378 INFO L93 Difference]: Finished difference Result 1531 states and 2090 transitions. [2020-07-20 00:57:45,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-07-20 00:57:45,378 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 66 [2020-07-20 00:57:45,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:57:45,386 INFO L225 Difference]: With dead ends: 1531 [2020-07-20 00:57:45,387 INFO L226 Difference]: Without dead ends: 1001 [2020-07-20 00:57:45,390 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=205, Invalid=551, Unknown=0, NotChecked=0, Total=756 [2020-07-20 00:57:45,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2020-07-20 00:57:45,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 805. [2020-07-20 00:57:45,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 805 states. [2020-07-20 00:57:45,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 983 transitions. [2020-07-20 00:57:45,539 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 983 transitions. Word has length 66 [2020-07-20 00:57:45,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:57:45,539 INFO L479 AbstractCegarLoop]: Abstraction has 805 states and 983 transitions. [2020-07-20 00:57:45,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-20 00:57:45,540 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 983 transitions. [2020-07-20 00:57:45,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-07-20 00:57:45,542 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:57:45,542 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 00:57:45,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-20 00:57:45,543 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:57:45,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:57:45,543 INFO L82 PathProgramCache]: Analyzing trace with hash -763723638, now seen corresponding path program 1 times [2020-07-20 00:57:45,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:57:45,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385077229] [2020-07-20 00:57:45,544 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5f855b49 [2020-07-20 00:57:45,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:45,777 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:57:45,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:45,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:45,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:45,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:45,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:45,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:45,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:45,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:45,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:45,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:45,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:45,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:45,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:45,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:57:45,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385077229] [2020-07-20 00:57:45,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:57:45,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-20 00:57:45,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81912777] [2020-07-20 00:57:45,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-20 00:57:45,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:57:45,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-20 00:57:45,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-07-20 00:57:45,963 INFO L87 Difference]: Start difference. First operand 805 states and 983 transitions. Second operand 10 states. [2020-07-20 00:57:47,450 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-20 00:57:47,707 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-20 00:57:47,954 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-20 00:57:48,189 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-20 00:57:49,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:57:49,608 INFO L93 Difference]: Finished difference Result 1854 states and 2470 transitions. [2020-07-20 00:57:49,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-20 00:57:49,609 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 93 [2020-07-20 00:57:49,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:57:49,618 INFO L225 Difference]: With dead ends: 1854 [2020-07-20 00:57:49,618 INFO L226 Difference]: Without dead ends: 1077 [2020-07-20 00:57:49,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-07-20 00:57:49,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2020-07-20 00:57:49,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 831. [2020-07-20 00:57:49,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 831 states. [2020-07-20 00:57:49,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1011 transitions. [2020-07-20 00:57:49,786 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1011 transitions. Word has length 93 [2020-07-20 00:57:49,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:57:49,787 INFO L479 AbstractCegarLoop]: Abstraction has 831 states and 1011 transitions. [2020-07-20 00:57:49,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-20 00:57:49,787 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1011 transitions. [2020-07-20 00:57:49,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-07-20 00:57:49,789 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:57:49,790 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 00:57:49,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-20 00:57:49,791 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:57:49,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:57:49,791 INFO L82 PathProgramCache]: Analyzing trace with hash -836110196, now seen corresponding path program 1 times [2020-07-20 00:57:49,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:57:49,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719785961] [2020-07-20 00:57:49,792 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5f855b49 [2020-07-20 00:57:49,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:50,072 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:57:50,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:50,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:50,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:50,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:50,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:50,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:50,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:50,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:50,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:50,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:50,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:50,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:57:50,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719785961] [2020-07-20 00:57:50,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:57:50,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-20 00:57:50,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793100894] [2020-07-20 00:57:50,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-20 00:57:50,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:57:50,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-20 00:57:50,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-07-20 00:57:50,281 INFO L87 Difference]: Start difference. First operand 831 states and 1011 transitions. Second operand 12 states. [2020-07-20 00:57:50,886 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-20 00:57:51,135 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-20 00:57:51,376 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-20 00:57:52,211 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-20 00:57:52,500 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-20 00:57:52,753 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-20 00:57:54,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:57:54,270 INFO L93 Difference]: Finished difference Result 1908 states and 2587 transitions. [2020-07-20 00:57:54,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-20 00:57:54,271 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 93 [2020-07-20 00:57:54,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:57:54,283 INFO L225 Difference]: With dead ends: 1908 [2020-07-20 00:57:54,283 INFO L226 Difference]: Without dead ends: 1105 [2020-07-20 00:57:54,288 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2020-07-20 00:57:54,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2020-07-20 00:57:54,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 847. [2020-07-20 00:57:54,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 847 states. [2020-07-20 00:57:54,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1027 transitions. [2020-07-20 00:57:54,475 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1027 transitions. Word has length 93 [2020-07-20 00:57:54,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:57:54,475 INFO L479 AbstractCegarLoop]: Abstraction has 847 states and 1027 transitions. [2020-07-20 00:57:54,475 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-20 00:57:54,475 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1027 transitions. [2020-07-20 00:57:54,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-07-20 00:57:54,478 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:57:54,478 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 00:57:54,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-20 00:57:54,478 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:57:54,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:57:54,479 INFO L82 PathProgramCache]: Analyzing trace with hash -506344435, now seen corresponding path program 1 times [2020-07-20 00:57:54,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:57:54,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869504102] [2020-07-20 00:57:54,479 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5f855b49 [2020-07-20 00:57:54,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:54,762 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:57:54,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:54,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:54,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:54,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:54,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:54,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:54,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:54,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:57:54,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:57:54,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869504102] [2020-07-20 00:57:54,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:57:54,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 00:57:54,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201396559] [2020-07-20 00:57:54,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 00:57:54,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:57:54,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 00:57:54,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-20 00:57:54,909 INFO L87 Difference]: Start difference. First operand 847 states and 1027 transitions. Second operand 8 states. [2020-07-20 00:57:55,646 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-20 00:57:56,566 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-20 00:58:00,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:58:00,024 INFO L93 Difference]: Finished difference Result 3347 states and 4795 transitions. [2020-07-20 00:58:00,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-20 00:58:00,025 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 93 [2020-07-20 00:58:00,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:58:00,042 INFO L225 Difference]: With dead ends: 3347 [2020-07-20 00:58:00,043 INFO L226 Difference]: Without dead ends: 2528 [2020-07-20 00:58:00,047 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=164, Invalid=486, Unknown=0, NotChecked=0, Total=650 [2020-07-20 00:58:00,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2528 states. [2020-07-20 00:58:00,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2528 to 1963. [2020-07-20 00:58:00,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1963 states. [2020-07-20 00:58:00,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1963 states to 1963 states and 2487 transitions. [2020-07-20 00:58:00,587 INFO L78 Accepts]: Start accepts. Automaton has 1963 states and 2487 transitions. Word has length 93 [2020-07-20 00:58:00,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:58:00,588 INFO L479 AbstractCegarLoop]: Abstraction has 1963 states and 2487 transitions. [2020-07-20 00:58:00,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 00:58:00,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1963 states and 2487 transitions. [2020-07-20 00:58:00,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-07-20 00:58:00,593 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:58:00,594 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 00:58:00,594 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-20 00:58:00,594 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:58:00,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:58:00,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1600364013, now seen corresponding path program 1 times [2020-07-20 00:58:00,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:58:00,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374624099] [2020-07-20 00:58:00,595 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5f855b49 [2020-07-20 00:58:00,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:00,906 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:58:00,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:00,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:00,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:00,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:00,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:00,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:00,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:01,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:01,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:58:01,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374624099] [2020-07-20 00:58:01,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:58:01,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 00:58:01,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117541813] [2020-07-20 00:58:01,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 00:58:01,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:58:01,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 00:58:01,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-20 00:58:01,022 INFO L87 Difference]: Start difference. First operand 1963 states and 2487 transitions. Second operand 8 states. [2020-07-20 00:58:01,531 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-20 00:58:05,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:58:05,086 INFO L93 Difference]: Finished difference Result 4647 states and 6546 transitions. [2020-07-20 00:58:05,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-20 00:58:05,087 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 97 [2020-07-20 00:58:05,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:58:05,118 INFO L225 Difference]: With dead ends: 4647 [2020-07-20 00:58:05,118 INFO L226 Difference]: Without dead ends: 4644 [2020-07-20 00:58:05,122 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=212, Invalid=544, Unknown=0, NotChecked=0, Total=756 [2020-07-20 00:58:05,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4644 states. [2020-07-20 00:58:06,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4644 to 3630. [2020-07-20 00:58:06,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3630 states. [2020-07-20 00:58:06,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3630 states to 3630 states and 4632 transitions. [2020-07-20 00:58:06,082 INFO L78 Accepts]: Start accepts. Automaton has 3630 states and 4632 transitions. Word has length 97 [2020-07-20 00:58:06,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:58:06,084 INFO L479 AbstractCegarLoop]: Abstraction has 3630 states and 4632 transitions. [2020-07-20 00:58:06,084 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 00:58:06,084 INFO L276 IsEmpty]: Start isEmpty. Operand 3630 states and 4632 transitions. [2020-07-20 00:58:06,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-07-20 00:58:06,096 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:58:06,097 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-20 00:58:06,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-20 00:58:06,097 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:58:06,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:58:06,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1898255401, now seen corresponding path program 1 times [2020-07-20 00:58:06,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:58:06,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674874697] [2020-07-20 00:58:06,098 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5f855b49 [2020-07-20 00:58:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,385 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:58:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:06,675 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-07-20 00:58:06,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674874697] [2020-07-20 00:58:06,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477146624] [2020-07-20 00:58:06,677 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7beb185c No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 00:58:07,169 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7beb185c issued 3 check-sat command(s) [2020-07-20 00:58:07,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 00:58:07,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 18 conjunts are in the unsatisfiable core [2020-07-20 00:58:07,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 00:58:07,389 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 52 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 00:58:07,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 00:58:07,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 7] total 20 [2020-07-20 00:58:07,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750977129] [2020-07-20 00:58:07,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-07-20 00:58:07,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:58:07,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-07-20 00:58:07,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2020-07-20 00:58:07,392 INFO L87 Difference]: Start difference. First operand 3630 states and 4632 transitions. Second operand 20 states. [2020-07-20 00:58:08,021 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-20 00:58:08,433 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-20 00:58:08,704 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-20 00:58:08,959 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-20 00:58:09,551 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-20 00:58:09,818 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-20 00:58:10,161 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-20 00:58:10,423 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-20 00:58:10,744 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-20 00:58:11,231 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-20 00:58:11,563 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-20 00:58:14,176 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-20 00:58:14,609 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-20 00:58:15,702 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-20 00:58:16,155 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-20 00:58:24,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:58:24,902 INFO L93 Difference]: Finished difference Result 10178 states and 15577 transitions. [2020-07-20 00:58:24,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2020-07-20 00:58:24,903 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 175 [2020-07-20 00:58:24,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:58:24,949 INFO L225 Difference]: With dead ends: 10178 [2020-07-20 00:58:24,949 INFO L226 Difference]: Without dead ends: 6576 [2020-07-20 00:58:24,972 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 314 SyntacticMatches, 1 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9128 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=2714, Invalid=20238, Unknown=0, NotChecked=0, Total=22952 [2020-07-20 00:58:24,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6576 states. [2020-07-20 00:58:25,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6576 to 3426. [2020-07-20 00:58:25,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3426 states. [2020-07-20 00:58:25,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3426 states to 3426 states and 4025 transitions. [2020-07-20 00:58:25,787 INFO L78 Accepts]: Start accepts. Automaton has 3426 states and 4025 transitions. Word has length 175 [2020-07-20 00:58:25,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:58:25,788 INFO L479 AbstractCegarLoop]: Abstraction has 3426 states and 4025 transitions. [2020-07-20 00:58:25,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-07-20 00:58:25,788 INFO L276 IsEmpty]: Start isEmpty. Operand 3426 states and 4025 transitions. [2020-07-20 00:58:25,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-07-20 00:58:25,796 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:58:25,796 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 00:58:26,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-07-20 00:58:26,010 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:58:26,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:58:26,010 INFO L82 PathProgramCache]: Analyzing trace with hash -2128517555, now seen corresponding path program 1 times [2020-07-20 00:58:26,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:58:26,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988194011] [2020-07-20 00:58:26,011 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5f855b49 [2020-07-20 00:58:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,484 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:58:26,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:26,711 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-07-20 00:58:26,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988194011] [2020-07-20 00:58:26,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233480008] [2020-07-20 00:58:26,713 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@29a48f5e 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 [2020-07-20 00:58:27,365 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@29a48f5e issued 3 check-sat command(s) [2020-07-20 00:58:27,365 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 00:58:27,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 874 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 00:58:27,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 00:58:27,444 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-20 00:58:27,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 00:58:27,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 10 [2020-07-20 00:58:27,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516165215] [2020-07-20 00:58:27,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 00:58:27,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:58:27,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 00:58:27,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-07-20 00:58:27,449 INFO L87 Difference]: Start difference. First operand 3426 states and 4025 transitions. Second operand 3 states. [2020-07-20 00:58:27,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:58:27,985 INFO L93 Difference]: Finished difference Result 3887 states and 4559 transitions. [2020-07-20 00:58:27,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 00:58:27,985 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2020-07-20 00:58:27,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:58:27,996 INFO L225 Difference]: With dead ends: 3887 [2020-07-20 00:58:27,996 INFO L226 Difference]: Without dead ends: 1346 [2020-07-20 00:58:28,003 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-07-20 00:58:28,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2020-07-20 00:58:28,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1123. [2020-07-20 00:58:28,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1123 states. [2020-07-20 00:58:28,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1301 transitions. [2020-07-20 00:58:28,258 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1301 transitions. Word has length 170 [2020-07-20 00:58:28,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:58:28,259 INFO L479 AbstractCegarLoop]: Abstraction has 1123 states and 1301 transitions. [2020-07-20 00:58:28,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 00:58:28,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1301 transitions. [2020-07-20 00:58:28,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-07-20 00:58:28,263 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:58:28,263 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 00:58:28,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 00:58:28,478 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:58:28,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:58:28,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1897710765, now seen corresponding path program 1 times [2020-07-20 00:58:28,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:58:28,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728820156] [2020-07-20 00:58:28,479 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5f855b49 [2020-07-20 00:58:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:28,860 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:58:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:28,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:28,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:28,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:28,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:28,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:29,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:29,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:29,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:29,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:29,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:29,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:29,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:29,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:29,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:29,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:29,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:29,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:29,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:29,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:29,164 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-07-20 00:58:29,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728820156] [2020-07-20 00:58:29,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391414291] [2020-07-20 00:58:29,169 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@e0ac023 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 00:58:29,881 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@e0ac023 issued 4 check-sat command(s) [2020-07-20 00:58:29,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 00:58:29,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 00:58:29,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 00:58:30,106 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-07-20 00:58:30,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 00:58:30,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [19] total 24 [2020-07-20 00:58:30,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039727643] [2020-07-20 00:58:30,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 00:58:30,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:58:30,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 00:58:30,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2020-07-20 00:58:30,109 INFO L87 Difference]: Start difference. First operand 1123 states and 1301 transitions. Second operand 8 states. [2020-07-20 00:58:30,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:58:30,524 INFO L93 Difference]: Finished difference Result 1909 states and 2227 transitions. [2020-07-20 00:58:30,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 00:58:30,524 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 173 [2020-07-20 00:58:30,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:58:30,525 INFO L225 Difference]: With dead ends: 1909 [2020-07-20 00:58:30,525 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 00:58:30,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 218 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2020-07-20 00:58:30,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 00:58:30,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 00:58:30,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 00:58:30,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 00:58:30,531 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 173 [2020-07-20 00:58:30,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:58:30,532 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 00:58:30,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 00:58:30,532 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 00:58:30,532 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 00:58:30,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-07-20 00:58:30,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 00:58:31,042 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 205 [2020-07-20 00:58:31,771 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 203 [2020-07-20 00:58:35,250 WARN L193 SmtUtils]: Spent 2.48 s on a formula simplification. DAG size of input: 706 DAG size of output: 607 [2020-07-20 00:58:41,317 WARN L193 SmtUtils]: Spent 3.53 s on a formula simplification. DAG size of input: 540 DAG size of output: 486 [2020-07-20 00:58:41,759 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 219 [2020-07-20 00:58:42,329 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 211 [2020-07-20 00:58:42,652 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 219 [2020-07-20 00:58:44,053 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 525 DAG size of output: 455 [2020-07-20 00:58:45,108 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 525 DAG size of output: 455 [2020-07-20 00:58:47,426 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 564 DAG size of output: 512 [2020-07-20 00:58:51,130 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 208 DAG size of output: 55 [2020-07-20 00:58:51,738 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 33 [2020-07-20 00:58:52,921 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 169 DAG size of output: 31 [2020-07-20 00:58:53,104 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 1 [2020-07-20 00:58:53,304 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 29 [2020-07-20 00:58:53,451 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 1 [2020-07-20 00:58:54,391 WARN L193 SmtUtils]: Spent 926.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 30 [2020-07-20 00:58:54,659 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 30 [2020-07-20 00:58:58,623 WARN L193 SmtUtils]: Spent 3.95 s on a formula simplification. DAG size of input: 545 DAG size of output: 49 [2020-07-20 00:58:58,842 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 31 [2020-07-20 00:58:59,079 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 29 [2020-07-20 00:58:59,283 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 31 [2020-07-20 00:58:59,494 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:59:00,524 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 182 DAG size of output: 36 [2020-07-20 00:59:00,768 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 29 [2020-07-20 00:59:03,234 WARN L193 SmtUtils]: Spent 2.46 s on a formula simplification. DAG size of input: 221 DAG size of output: 54 [2020-07-20 00:59:04,434 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 161 DAG size of output: 31 [2020-07-20 00:59:04,617 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 1 [2020-07-20 00:59:05,909 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 188 DAG size of output: 35 [2020-07-20 00:59:07,983 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 200 DAG size of output: 38 [2020-07-20 00:59:08,236 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 29 [2020-07-20 00:59:08,813 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 27 [2020-07-20 00:59:09,428 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 30 [2020-07-20 00:59:11,609 WARN L193 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 180 DAG size of output: 41 [2020-07-20 00:59:11,863 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 29 [2020-07-20 00:59:12,815 WARN L193 SmtUtils]: Spent 933.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 30 [2020-07-20 00:59:13,655 WARN L193 SmtUtils]: Spent 833.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 32 [2020-07-20 00:59:20,950 WARN L193 SmtUtils]: Spent 7.29 s on a formula simplification. DAG size of input: 433 DAG size of output: 43 [2020-07-20 00:59:21,703 WARN L193 SmtUtils]: Spent 749.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 28 [2020-07-20 00:59:22,619 WARN L193 SmtUtils]: Spent 912.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 34 [2020-07-20 00:59:22,816 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 29 [2020-07-20 00:59:25,270 WARN L193 SmtUtils]: Spent 2.44 s on a formula simplification. DAG size of input: 252 DAG size of output: 58 [2020-07-20 00:59:25,407 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 1 [2020-07-20 00:59:26,110 WARN L193 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 30 [2020-07-20 00:59:26,305 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 29 [2020-07-20 00:59:26,445 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 1 [2020-07-20 00:59:28,814 WARN L193 SmtUtils]: Spent 2.36 s on a formula simplification. DAG size of input: 389 DAG size of output: 51 [2020-07-20 00:59:29,001 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 29 [2020-07-20 00:59:31,417 WARN L193 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 389 DAG size of output: 51 [2020-07-20 00:59:31,584 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 20 [2020-07-20 00:59:31,758 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 1 [2020-07-20 00:59:31,951 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 29 [2020-07-20 00:59:32,110 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 1 [2020-07-20 00:59:32,281 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 1 [2020-07-20 00:59:32,464 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 29 [2020-07-20 00:59:32,664 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 29 [2020-07-20 00:59:35,722 WARN L193 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 446 DAG size of output: 51 [2020-07-20 00:59:36,324 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 22 [2020-07-20 00:59:36,492 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 33 [2020-07-20 00:59:37,266 WARN L193 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 28 [2020-07-20 00:59:38,449 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 250 DAG size of output: 36 [2020-07-20 00:59:39,300 WARN L193 SmtUtils]: Spent 844.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 29 [2020-07-20 00:59:40,539 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 203 DAG size of output: 49 [2020-07-20 00:59:42,512 WARN L193 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 200 DAG size of output: 38 [2020-07-20 00:59:42,528 INFO L268 CegarLoopResult]: For program point L579-2(lines 579 600) no Hoare annotation was computed. [2020-07-20 00:59:42,528 INFO L268 CegarLoopResult]: For program point L601(lines 578 602) no Hoare annotation was computed. [2020-07-20 00:59:42,528 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 554 609) no Hoare annotation was computed. [2020-07-20 00:59:42,528 INFO L268 CegarLoopResult]: For program point L585(lines 585 589) no Hoare annotation was computed. [2020-07-20 00:59:42,528 INFO L268 CegarLoopResult]: For program point L585-1(lines 585 589) no Hoare annotation was computed. [2020-07-20 00:59:42,528 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 554 609) no Hoare annotation was computed. [2020-07-20 00:59:42,528 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 00:59:42,529 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 554 609) no Hoare annotation was computed. [2020-07-20 00:59:42,529 INFO L268 CegarLoopResult]: For program point L642-1(lines 642 646) no Hoare annotation was computed. [2020-07-20 00:59:42,529 INFO L268 CegarLoopResult]: For program point L637(line 637) no Hoare annotation was computed. [2020-07-20 00:59:42,529 INFO L268 CegarLoopResult]: For program point L636-2(lines 636 661) no Hoare annotation was computed. [2020-07-20 00:59:42,529 INFO L268 CegarLoopResult]: For program point L662(lines 635 663) no Hoare annotation was computed. [2020-07-20 00:59:42,529 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 610 669) no Hoare annotation was computed. [2020-07-20 00:59:42,529 INFO L268 CegarLoopResult]: For program point L655(line 655) no Hoare annotation was computed. [2020-07-20 00:59:42,529 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 610 669) no Hoare annotation was computed. [2020-07-20 00:59:42,530 INFO L268 CegarLoopResult]: For program point L655-1(line 655) no Hoare annotation was computed. [2020-07-20 00:59:42,530 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 610 669) no Hoare annotation was computed. [2020-07-20 00:59:42,530 INFO L268 CegarLoopResult]: For program point L642(lines 642 646) no Hoare annotation was computed. [2020-07-20 00:59:42,530 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 61 67) the Hoare annotation is: true [2020-07-20 00:59:42,530 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 61 67) no Hoare annotation was computed. [2020-07-20 00:59:42,530 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 68 76) no Hoare annotation was computed. [2020-07-20 00:59:42,530 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 68 76) the Hoare annotation is: true [2020-07-20 00:59:42,531 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 68 76) no Hoare annotation was computed. [2020-07-20 00:59:42,531 INFO L264 CegarLoopResult]: At program point L993(line 993) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methAndRunningLastTime~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 main_~tmp~10) (= 0 ~pumpRunning~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= main_~tmp~10 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= 1 |old(~systemActive~0)|))) [2020-07-20 00:59:42,531 INFO L264 CegarLoopResult]: At program point L993-1(line 993) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methAndRunningLastTime~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 1 main_~tmp~10) (= 0 ~pumpRunning~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= main_~tmp~10 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= 1 |old(~systemActive~0)|))) [2020-07-20 00:59:42,531 INFO L268 CegarLoopResult]: For program point L991(lines 991 998) no Hoare annotation was computed. [2020-07-20 00:59:42,531 INFO L268 CegarLoopResult]: For program point L991-1(lines 991 998) no Hoare annotation was computed. [2020-07-20 00:59:42,531 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 981 1003) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= 1 |old(~systemActive~0)|)) (and (= 0 ~methAndRunningLastTime~0) (= |old(~systemActive~0)| ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-20 00:59:42,532 INFO L268 CegarLoopResult]: For program point L989(line 989) no Hoare annotation was computed. [2020-07-20 00:59:42,532 INFO L264 CegarLoopResult]: At program point L988(line 988) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= 1 |old(~systemActive~0)|)) (and (= 0 ~methAndRunningLastTime~0) (= |old(~systemActive~0)| ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-20 00:59:42,532 INFO L264 CegarLoopResult]: At program point L987(line 987) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= 1 |old(~systemActive~0)|)) (and (= 0 ~methAndRunningLastTime~0) (= |old(~systemActive~0)| ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-20 00:59:42,532 INFO L264 CegarLoopResult]: At program point L987-1(line 987) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= 1 |old(~systemActive~0)|)) (and (= 0 ~methAndRunningLastTime~0) (= |old(~systemActive~0)| ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-20 00:59:42,532 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 981 1003) no Hoare annotation was computed. [2020-07-20 00:59:42,532 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 981 1003) no Hoare annotation was computed. [2020-07-20 00:59:42,532 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 939 962) no Hoare annotation was computed. [2020-07-20 00:59:42,532 INFO L268 CegarLoopResult]: For program point L957(line 957) no Hoare annotation was computed. [2020-07-20 00:59:42,533 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 939 962) no Hoare annotation was computed. [2020-07-20 00:59:42,533 INFO L268 CegarLoopResult]: For program point L956(line 956) no Hoare annotation was computed. [2020-07-20 00:59:42,533 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 939 962) no Hoare annotation was computed. [2020-07-20 00:59:42,533 INFO L268 CegarLoopResult]: For program point L955(line 955) no Hoare annotation was computed. [2020-07-20 00:59:42,533 INFO L268 CegarLoopResult]: For program point L954(line 954) no Hoare annotation was computed. [2020-07-20 00:59:42,533 INFO L268 CegarLoopResult]: For program point L953(line 953) no Hoare annotation was computed. [2020-07-20 00:59:42,533 INFO L268 CegarLoopResult]: For program point L952(line 952) no Hoare annotation was computed. [2020-07-20 00:59:42,533 INFO L268 CegarLoopResult]: For program point L951(line 951) no Hoare annotation was computed. [2020-07-20 00:59:42,533 INFO L268 CegarLoopResult]: For program point L950(line 950) no Hoare annotation was computed. [2020-07-20 00:59:42,533 INFO L268 CegarLoopResult]: For program point L949(line 949) no Hoare annotation was computed. [2020-07-20 00:59:42,533 INFO L268 CegarLoopResult]: For program point L948(line 948) no Hoare annotation was computed. [2020-07-20 00:59:42,533 INFO L268 CegarLoopResult]: For program point L947(line 947) no Hoare annotation was computed. [2020-07-20 00:59:42,534 INFO L268 CegarLoopResult]: For program point L946(line 946) no Hoare annotation was computed. [2020-07-20 00:59:42,534 INFO L268 CegarLoopResult]: For program point L945(line 945) no Hoare annotation was computed. [2020-07-20 00:59:42,534 INFO L268 CegarLoopResult]: For program point L944(line 944) no Hoare annotation was computed. [2020-07-20 00:59:42,534 INFO L268 CegarLoopResult]: For program point stopSystemEXIT(lines 486 500) no Hoare annotation was computed. [2020-07-20 00:59:42,534 INFO L264 CegarLoopResult]: At program point L492(line 492) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|))) (let ((.cse3 (not (= 0 ~methaneLevelCritical~0))) (.cse5 (not (= 0 ~methAndRunningLastTime~0))) (.cse6 (not .cse0)) (.cse7 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (and (= |old(~systemActive~0)| ~systemActive~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (.cse2 (not (<= ~waterLevel~0 2))) (.cse4 (= 0 |old(~systemActive~0)|))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse2 .cse6 .cse3) (or .cse5 .cse7 .cse2 .cse6) (or .cse0 .cse7 .cse1 .cse2 .cse4)))) [2020-07-20 00:59:42,534 INFO L268 CegarLoopResult]: For program point L490(lines 490 496) no Hoare annotation was computed. [2020-07-20 00:59:42,534 INFO L264 CegarLoopResult]: At program point stopSystemENTRY(lines 486 500) the Hoare annotation is: (let ((.cse5 (= 0 |old(~pumpRunning~0)|)) (.cse9 (= |old(~systemActive~0)| ~systemActive~0))) (let ((.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse6 (and .cse9 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (.cse8 (= 0 |old(~systemActive~0)|)) (.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse2 (not (<= ~waterLevel~0 2))) (.cse3 (not .cse5)) (.cse7 (not (= 0 ~methaneLevelCritical~0))) (.cse4 (and .cse9 (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse2 .cse7 .cse8) (or .cse5 .cse1 .cse6 .cse2 .cse8) (or .cse0 .cse2 .cse3 .cse7 .cse4)))) [2020-07-20 00:59:42,534 INFO L268 CegarLoopResult]: For program point stopSystemFINAL(lines 486 500) no Hoare annotation was computed. [2020-07-20 00:59:42,535 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 403 411) no Hoare annotation was computed. [2020-07-20 00:59:42,535 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 403 411) the Hoare annotation is: true [2020-07-20 00:59:42,535 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 403 411) no Hoare annotation was computed. [2020-07-20 00:59:42,535 INFO L268 CegarLoopResult]: For program point L476(lines 476 480) no Hoare annotation was computed. [2020-07-20 00:59:42,535 INFO L271 CegarLoopResult]: At program point L474(line 474) the Hoare annotation is: true [2020-07-20 00:59:42,535 INFO L268 CegarLoopResult]: For program point L476-2(lines 476 480) no Hoare annotation was computed. [2020-07-20 00:59:42,535 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 467 485) the Hoare annotation is: true [2020-07-20 00:59:42,535 INFO L268 CegarLoopResult]: For program point L474-1(line 474) no Hoare annotation was computed. [2020-07-20 00:59:42,535 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 467 485) no Hoare annotation was computed. [2020-07-20 00:59:42,536 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 467 485) no Hoare annotation was computed. [2020-07-20 00:59:42,536 INFO L268 CegarLoopResult]: For program point L419-2(lines 419 427) no Hoare annotation was computed. [2020-07-20 00:59:42,536 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 00:59:42,536 INFO L268 CegarLoopResult]: For program point L442-1(line 442) no Hoare annotation was computed. [2020-07-20 00:59:42,536 INFO L268 CegarLoopResult]: For program point L431(lines 431 439) no Hoare annotation was computed. [2020-07-20 00:59:42,536 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 412 447) no Hoare annotation was computed. [2020-07-20 00:59:42,536 INFO L268 CegarLoopResult]: For program point L431-2(lines 431 439) no Hoare annotation was computed. [2020-07-20 00:59:42,536 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 412 447) no Hoare annotation was computed. [2020-07-20 00:59:42,536 INFO L268 CegarLoopResult]: For program point L419(lines 419 427) no Hoare annotation was computed. [2020-07-20 00:59:42,536 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 412 447) no Hoare annotation was computed. [2020-07-20 00:59:42,537 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 54 60) no Hoare annotation was computed. [2020-07-20 00:59:42,537 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 54 60) the Hoare annotation is: true [2020-07-20 00:59:42,537 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 508 553) no Hoare annotation was computed. [2020-07-20 00:59:42,537 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 508 553) no Hoare annotation was computed. [2020-07-20 00:59:42,537 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 508 553) no Hoare annotation was computed. [2020-07-20 00:59:42,537 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 821 866) no Hoare annotation was computed. [2020-07-20 00:59:42,537 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 821 866) no Hoare annotation was computed. [2020-07-20 00:59:42,537 INFO L268 CegarLoopResult]: For program point L841(lines 841 848) no Hoare annotation was computed. [2020-07-20 00:59:42,538 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 821 866) no Hoare annotation was computed. [2020-07-20 00:59:42,538 INFO L268 CegarLoopResult]: For program point L835(lines 835 855) no Hoare annotation was computed. [2020-07-20 00:59:42,538 INFO L268 CegarLoopResult]: For program point L835-1(lines 835 855) no Hoare annotation was computed. [2020-07-20 00:59:42,538 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 970 980) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= 1 |old(~systemActive~0)|)) (and (= 0 ~methAndRunningLastTime~0) (= |old(~systemActive~0)| ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-20 00:59:42,538 INFO L264 CegarLoopResult]: At program point L975(line 975) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= 1 |old(~systemActive~0)|)) (and (= 0 ~methAndRunningLastTime~0) (= |old(~systemActive~0)| ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-20 00:59:42,538 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 970 980) no Hoare annotation was computed. [2020-07-20 00:59:42,538 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 970 980) no Hoare annotation was computed. [2020-07-20 00:59:42,538 INFO L271 CegarLoopResult]: At program point isMethaneAlarmENTRY(lines 392 402) the Hoare annotation is: true [2020-07-20 00:59:42,539 INFO L271 CegarLoopResult]: At program point L397(line 397) the Hoare annotation is: true [2020-07-20 00:59:42,539 INFO L268 CegarLoopResult]: For program point L397-1(line 397) no Hoare annotation was computed. [2020-07-20 00:59:42,539 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 392 402) no Hoare annotation was computed. [2020-07-20 00:59:42,539 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 392 402) no Hoare annotation was computed. [2020-07-20 00:59:42,539 INFO L264 CegarLoopResult]: At program point deactivatePumpENTRY(lines 384 391) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|)) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (<= ~waterLevel~0 2))) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= 0 ~methaneLevelCritical~0))) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse2 .cse1 .cse3))) [2020-07-20 00:59:42,539 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 384 391) no Hoare annotation was computed. [2020-07-20 00:59:42,539 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 384 391) no Hoare annotation was computed. [2020-07-20 00:59:42,539 INFO L268 CegarLoopResult]: For program point L169(lines 169 175) no Hoare annotation was computed. [2020-07-20 00:59:42,539 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 165 178) no Hoare annotation was computed. [2020-07-20 00:59:42,540 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 165 178) the Hoare annotation is: true [2020-07-20 00:59:42,540 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 165 178) no Hoare annotation was computed. [2020-07-20 00:59:42,540 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 351 375) no Hoare annotation was computed. [2020-07-20 00:59:42,540 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 351 375) the Hoare annotation is: (let ((.cse6 (= 0 |old(~pumpRunning~0)|))) (let ((.cse3 (not (= 0 ~methaneLevelCritical~0))) (.cse7 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse8 (not (<= ~waterLevel~0 1))) (.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse9 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not .cse6)) (.cse4 (= 0 ~pumpRunning~0)) (.cse5 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse7 .cse3 .cse8 .cse5) (or .cse6 .cse9 .cse7 .cse8 .cse5) (or .cse0 .cse9 .cse1 .cse2 .cse4 .cse5)))) [2020-07-20 00:59:42,540 INFO L264 CegarLoopResult]: At program point L370(line 370) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|))) (let ((.cse2 (not (<= ~waterLevel~0 1))) (.cse4 (not (= 0 ~methaneLevelCritical~0))) (.cse5 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse6 (not (<= ~waterLevel~0 2))) (.cse7 (not .cse0)) (.cse8 (= 0 ~pumpRunning~0)) (.cse3 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse2 .cse3) (or .cse5 .cse6 .cse7 .cse4 .cse8 .cse3) (or .cse5 .cse1 .cse6 .cse7 .cse8 .cse3)))) [2020-07-20 00:59:42,540 INFO L268 CegarLoopResult]: For program point L370-1(lines 351 375) no Hoare annotation was computed. [2020-07-20 00:59:42,540 INFO L264 CegarLoopResult]: At program point L365(line 365) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|))) (let ((.cse2 (not (<= ~waterLevel~0 1))) (.cse4 (not (= 0 ~methaneLevelCritical~0))) (.cse5 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse6 (not (<= ~waterLevel~0 2))) (.cse7 (not .cse0)) (.cse3 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4 .cse2 .cse3) (or .cse5 .cse6 .cse7 .cse4 .cse3) (or .cse5 .cse1 .cse6 .cse7 .cse3)))) [2020-07-20 00:59:42,541 INFO L264 CegarLoopResult]: At program point L361(line 361) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|))) (let ((.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (not (<= ~waterLevel~0 1))) (.cse5 (not (= 0 ~methaneLevelCritical~0))) (.cse6 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse7 (not (<= ~waterLevel~0 2))) (.cse8 (not .cse0)) (.cse4 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (and .cse2 (<= ~methaneLevelCritical~0 processEnvironment_~tmp~3)) .cse3 .cse4) (or .cse0 .cse2 .cse5 .cse3 .cse4) (or .cse6 .cse7 .cse8 .cse5 .cse4) (or .cse6 .cse1 .cse7 .cse8 .cse4)))) [2020-07-20 00:59:42,541 INFO L268 CegarLoopResult]: For program point L359(lines 359 367) no Hoare annotation was computed. [2020-07-20 00:59:42,541 INFO L264 CegarLoopResult]: At program point L357(line 357) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|))) (let ((.cse2 (not (= 0 ~methaneLevelCritical~0))) (.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (not (<= ~waterLevel~0 1))) (.cse5 (not (= 0 ~methAndRunningLastTime~0))) (.cse8 (not (<= 1 ~methaneLevelCritical~0))) (.cse6 (not (<= ~waterLevel~0 2))) (.cse7 (not .cse0)) (.cse4 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse7 .cse2 .cse4) (or .cse0 .cse8 .cse1 .cse3 .cse4) (or .cse5 .cse8 .cse6 .cse7 .cse4)))) [2020-07-20 00:59:42,541 INFO L268 CegarLoopResult]: For program point L357-1(line 357) no Hoare annotation was computed. [2020-07-20 00:59:42,541 INFO L268 CegarLoopResult]: For program point L355(lines 355 372) no Hoare annotation was computed. [2020-07-20 00:59:42,541 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 291 297) no Hoare annotation was computed. [2020-07-20 00:59:42,541 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 291 297) the Hoare annotation is: true [2020-07-20 00:59:42,542 INFO L264 CegarLoopResult]: At program point testENTRY(lines 192 257) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= 1 |old(~systemActive~0)|)) (and (= 0 ~methAndRunningLastTime~0) (= |old(~systemActive~0)| ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-20 00:59:42,542 INFO L264 CegarLoopResult]: At program point L250(lines 201 251) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= 1 |old(~systemActive~0)|))) [2020-07-20 00:59:42,542 INFO L268 CegarLoopResult]: For program point testFINAL(lines 192 257) no Hoare annotation was computed. [2020-07-20 00:59:42,542 INFO L264 CegarLoopResult]: At program point L240(line 240) the Hoare annotation is: (let ((.cse7 (= 0 ~pumpRunning~0))) (let ((.cse1 (not (= 0 ~systemActive~0))) (.cse4 (not .cse7)) (.cse5 (= 0 ~methaneLevelCritical~0)) (.cse6 (= 0 ~methAndRunningLastTime~0)) (.cse0 (= 0 test_~splverifierCounter~0)) (.cse2 (<= 1 ~methaneLevelCritical~0)) (.cse3 (<= ~waterLevel~0 2))) (or (not (<= |old(~waterLevel~0)| 1)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (= 0 |old(~pumpRunning~0)|)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= 1 |old(~systemActive~0)|)) (and .cse5 .cse0 .cse1 .cse3 .cse4) (and .cse6 .cse5 .cse0 .cse3 .cse7) (and .cse6 .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 .cse3)))) [2020-07-20 00:59:42,542 INFO L268 CegarLoopResult]: For program point L238(lines 238 244) no Hoare annotation was computed. [2020-07-20 00:59:42,542 INFO L264 CegarLoopResult]: At program point L238-1(lines 232 245) the Hoare annotation is: (let ((.cse4 (= 0 ~pumpRunning~0))) (let ((.cse6 (not .cse4)) (.cse8 (= 0 ~methAndRunningLastTime~0)) (.cse0 (= 0 ~methaneLevelCritical~0)) (.cse7 (= 1 ~systemActive~0)) (.cse1 (= 0 test_~splverifierCounter~0)) (.cse5 (<= 1 ~methaneLevelCritical~0)) (.cse2 (= 0 ~systemActive~0)) (.cse3 (<= ~waterLevel~0 2))) (or (not (<= |old(~waterLevel~0)| 1)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 (< 1 ~waterLevel~0) .cse5 .cse3 .cse6 .cse7) (not (= 0 |old(~pumpRunning~0)|)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse8 .cse1 .cse5 .cse3 .cse7) (not (= 1 |old(~systemActive~0)|)) (and .cse0 .cse1 .cse3 .cse6 .cse7) (and .cse8 .cse0 .cse1 .cse3 .cse7) (and .cse1 .cse5 .cse2 .cse3 .cse4)))) [2020-07-20 00:59:42,543 INFO L268 CegarLoopResult]: For program point L203(lines 202 249) no Hoare annotation was computed. [2020-07-20 00:59:42,543 INFO L268 CegarLoopResult]: For program point L232(lines 232 245) no Hoare annotation was computed. [2020-07-20 00:59:42,543 INFO L264 CegarLoopResult]: At program point L224(line 224) the Hoare annotation is: (let ((.cse7 (= 0 ~systemActive~0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse3 (= 0 ~pumpRunning~0)) (.cse5 (= 0 ~methAndRunningLastTime~0)) (.cse6 (= 0 ~methaneLevelCritical~0)) (.cse0 (= 0 test_~splverifierCounter~0)) (.cse2 (<= ~waterLevel~0 2)) (.cse4 (= 1 ~systemActive~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and .cse0 (< 1 ~waterLevel~0) .cse1 .cse2 (not .cse3) .cse4) (not (= 0 |old(~pumpRunning~0)|)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= 1 |old(~systemActive~0)|)) (and .cse5 .cse6 .cse0 .cse7 .cse2 .cse3) (and .cse0 .cse5 .cse1 .cse7 .cse2 .cse3) (and .cse5 .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse0 .cse2 .cse4))) [2020-07-20 00:59:42,543 INFO L268 CegarLoopResult]: For program point L222(lines 222 228) no Hoare annotation was computed. [2020-07-20 00:59:42,543 INFO L268 CegarLoopResult]: For program point L222-1(lines 222 228) no Hoare annotation was computed. [2020-07-20 00:59:42,543 INFO L264 CegarLoopResult]: At program point L247(lines 202 249) the Hoare annotation is: (let ((.cse7 (= 0 ~systemActive~0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse3 (= 0 ~pumpRunning~0)) (.cse5 (= 0 ~methAndRunningLastTime~0)) (.cse6 (= 0 ~methaneLevelCritical~0)) (.cse0 (= 0 test_~splverifierCounter~0)) (.cse2 (<= ~waterLevel~0 2)) (.cse4 (= 1 ~systemActive~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and .cse0 (< 1 ~waterLevel~0) .cse1 .cse2 (not .cse3) .cse4) (not (= 0 |old(~pumpRunning~0)|)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= 1 |old(~systemActive~0)|)) (and .cse5 .cse0 .cse6 .cse7 .cse2 .cse3) (and .cse5 .cse0 .cse1 .cse7 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0) .cse4) (and .cse5 .cse6 .cse0 .cse2 .cse4))) [2020-07-20 00:59:42,544 INFO L264 CegarLoopResult]: At program point L214(line 214) the Hoare annotation is: (let ((.cse7 (= 0 ~systemActive~0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse3 (= 0 ~pumpRunning~0)) (.cse5 (= 0 ~methAndRunningLastTime~0)) (.cse6 (= 0 ~methaneLevelCritical~0)) (.cse0 (= 0 test_~splverifierCounter~0)) (.cse2 (<= ~waterLevel~0 2)) (.cse4 (= 1 ~systemActive~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and .cse0 (< 1 ~waterLevel~0) .cse1 .cse2 (not .cse3) .cse4) (not (= 0 |old(~pumpRunning~0)|)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= 1 |old(~systemActive~0)|)) (and .cse5 .cse0 .cse6 .cse7 .cse2 .cse3) (and .cse5 .cse0 .cse1 .cse7 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0) .cse4) (and .cse5 .cse6 .cse0 .cse2 .cse4))) [2020-07-20 00:59:42,544 INFO L268 CegarLoopResult]: For program point L212(lines 212 218) no Hoare annotation was computed. [2020-07-20 00:59:42,544 INFO L268 CegarLoopResult]: For program point L212-1(lines 212 218) no Hoare annotation was computed. [2020-07-20 00:59:42,544 INFO L268 CegarLoopResult]: For program point L204(lines 204 208) no Hoare annotation was computed. [2020-07-20 00:59:42,544 INFO L268 CegarLoopResult]: For program point testEXIT(lines 192 257) no Hoare annotation was computed. [2020-07-20 00:59:42,544 INFO L268 CegarLoopResult]: For program point L795(lines 795 802) no Hoare annotation was computed. [2020-07-20 00:59:42,544 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 775 820) no Hoare annotation was computed. [2020-07-20 00:59:42,544 INFO L268 CegarLoopResult]: For program point L789(lines 789 809) no Hoare annotation was computed. [2020-07-20 00:59:42,544 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 775 820) no Hoare annotation was computed. [2020-07-20 00:59:42,544 INFO L268 CegarLoopResult]: For program point L789-1(lines 789 809) no Hoare annotation was computed. [2020-07-20 00:59:42,545 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 775 820) no Hoare annotation was computed. [2020-07-20 00:59:42,545 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 179 187) no Hoare annotation was computed. [2020-07-20 00:59:42,545 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 179 187) the Hoare annotation is: true [2020-07-20 00:59:42,545 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 179 187) no Hoare annotation was computed. [2020-07-20 00:59:42,545 INFO L264 CegarLoopResult]: At program point L893(line 893) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse5 (not (<= ~waterLevel~0 1))) (.cse3 (not (= 1 ~systemActive~0))) (.cse2 (not (= 0 ~methaneLevelCritical~0))) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse0 (not (<= ~waterLevel~0 2))) (.cse7 (not (= 0 ~systemActive~0))) (.cse6 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse1 (not (< 1 ~waterLevel~0)) .cse3) (or .cse2 .cse5 .cse3) (or .cse4 .cse5 .cse6 .cse3) (or .cse0 .cse7 .cse2 .cse6) (or .cse4 .cse0 .cse7 .cse6))) [2020-07-20 00:59:42,545 INFO L268 CegarLoopResult]: For program point L891(lines 891 897) no Hoare annotation was computed. [2020-07-20 00:59:42,545 INFO L268 CegarLoopResult]: For program point L890(lines 890 900) no Hoare annotation was computed. [2020-07-20 00:59:42,546 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse5 (not (<= ~waterLevel~0 1))) (.cse3 (not (= 1 ~systemActive~0))) (.cse2 (not (= 0 ~methaneLevelCritical~0))) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse0 (not (<= ~waterLevel~0 2))) (.cse8 (not (= 0 ~systemActive~0))) (.cse6 (not (= 0 ~pumpRunning~0))) (.cse7 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 (= 0 ~methAndRunningLastTime~0) .cse0 .cse1 (not (< 1 ~waterLevel~0)) .cse3) (or .cse4 .cse5 .cse6 .cse7 .cse3) (or .cse2 .cse5 .cse3) (or .cse0 .cse8 .cse2 .cse6) (or .cse4 .cse0 .cse8 .cse6 .cse7))) [2020-07-20 00:59:42,546 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-07-20 00:59:42,546 INFO L268 CegarLoopResult]: For program point L886(lines 886 903) no Hoare annotation was computed. [2020-07-20 00:59:42,546 INFO L268 CegarLoopResult]: For program point L886-1(lines 878 906) no Hoare annotation was computed. [2020-07-20 00:59:42,546 INFO L264 CegarLoopResult]: At program point L884(line 884) the Hoare annotation is: (let ((.cse1 (= 0 ~methAndRunningLastTime~0)) (.cse3 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse5 (not (= 0 ~methaneLevelCritical~0))) (.cse6 (not (<= ~waterLevel~0 1))) (.cse4 (not (= 1 ~systemActive~0))) (.cse0 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (not (<= ~waterLevel~0 2))) (.cse9 (not (= 0 ~systemActive~0))) (.cse7 (not (= 0 ~pumpRunning~0))) (.cse8 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0))) (and (or .cse0 .cse1 .cse2 .cse3 (not (< 1 ~waterLevel~0)) .cse4) (or .cse1 .cse2 .cse3 .cse5 .cse4) (or .cse0 .cse6 .cse7 .cse8 .cse4) (or .cse2 .cse9 .cse5 .cse7 .cse8) (or .cse5 .cse6 .cse8 .cse4) (or .cse0 .cse2 .cse9 .cse7 .cse8))) [2020-07-20 00:59:42,546 INFO L268 CegarLoopResult]: For program point L884-1(line 884) no Hoare annotation was computed. [2020-07-20 00:59:42,547 INFO L264 CegarLoopResult]: At program point __utac_acc__Specification2_spec__2ENTRY(lines 878 906) the Hoare annotation is: (let ((.cse1 (= 0 ~methAndRunningLastTime~0)) (.cse3 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse5 (not (= 0 ~methaneLevelCritical~0))) (.cse6 (not (<= ~waterLevel~0 1))) (.cse4 (not (= 1 ~systemActive~0))) (.cse0 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (not (<= ~waterLevel~0 2))) (.cse9 (not (= 0 ~systemActive~0))) (.cse7 (not (= 0 ~pumpRunning~0))) (.cse8 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0))) (and (or .cse0 .cse1 .cse2 .cse3 (not (< 1 ~waterLevel~0)) .cse4) (or .cse1 .cse2 .cse3 .cse5 .cse4) (or .cse0 .cse6 .cse7 .cse8 .cse4) (or .cse2 .cse9 .cse5 .cse7 .cse8) (or .cse5 .cse6 .cse8 .cse4) (or .cse0 .cse2 .cse9 .cse7 .cse8))) [2020-07-20 00:59:42,547 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification2_spec__2EXIT(lines 878 906) no Hoare annotation was computed. [2020-07-20 00:59:42,547 INFO L268 CegarLoopResult]: For program point L141(lines 141 149) no Hoare annotation was computed. [2020-07-20 00:59:42,547 INFO L268 CegarLoopResult]: For program point L141-2(lines 141 149) no Hoare annotation was computed. [2020-07-20 00:59:42,547 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 133 155) no Hoare annotation was computed. [2020-07-20 00:59:42,547 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 133 155) no Hoare annotation was computed. [2020-07-20 00:59:42,547 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 133 155) no Hoare annotation was computed. [2020-07-20 00:59:42,547 INFO L264 CegarLoopResult]: At program point __utac_acc__Specification2_spec__1ENTRY(lines 870 877) the Hoare annotation is: (or (= 0 ~methAndRunningLastTime~0) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 ~methaneLevelCritical~0)) (not (<= ~waterLevel~0 1)) (not (= 0 ~pumpRunning~0)) (not (= 1 ~systemActive~0))) [2020-07-20 00:59:42,547 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification2_spec__1FINAL(lines 870 877) no Hoare annotation was computed. [2020-07-20 00:59:42,547 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification2_spec__1EXIT(lines 870 877) no Hoare annotation was computed. [2020-07-20 00:59:42,548 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 44 53) no Hoare annotation was computed. [2020-07-20 00:59:42,548 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 44 53) no Hoare annotation was computed. [2020-07-20 00:59:42,548 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 44 53) no Hoare annotation was computed. [2020-07-20 00:59:42,548 INFO L268 CegarLoopResult]: For program point L737(line 737) no Hoare annotation was computed. [2020-07-20 00:59:42,548 INFO L268 CegarLoopResult]: For program point L737-1(line 737) no Hoare annotation was computed. [2020-07-20 00:59:42,548 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 672 774) no Hoare annotation was computed. [2020-07-20 00:59:42,548 INFO L268 CegarLoopResult]: For program point L696(lines 696 700) no Hoare annotation was computed. [2020-07-20 00:59:42,548 INFO L268 CegarLoopResult]: For program point L760(lines 760 771) no Hoare annotation was computed. [2020-07-20 00:59:42,548 INFO L268 CegarLoopResult]: For program point L723(lines 723 727) no Hoare annotation was computed. [2020-07-20 00:59:42,549 INFO L268 CegarLoopResult]: For program point L721-2(lines 721 741) no Hoare annotation was computed. [2020-07-20 00:59:42,549 INFO L268 CegarLoopResult]: For program point L742(lines 720 743) no Hoare annotation was computed. [2020-07-20 00:59:42,549 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 672 774) no Hoare annotation was computed. [2020-07-20 00:59:42,549 INFO L268 CegarLoopResult]: For program point L701(lines 701 717) no Hoare annotation was computed. [2020-07-20 00:59:42,549 INFO L268 CegarLoopResult]: For program point L761(lines 761 768) no Hoare annotation was computed. [2020-07-20 00:59:42,549 INFO L268 CegarLoopResult]: For program point L722(lines 721 741) no Hoare annotation was computed. [2020-07-20 00:59:42,549 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 672 774) no Hoare annotation was computed. [2020-07-20 00:59:42,549 INFO L268 CegarLoopResult]: For program point L753(line 753) no Hoare annotation was computed. [2020-07-20 00:59:42,549 INFO L268 CegarLoopResult]: For program point L753-1(line 753) no Hoare annotation was computed. [2020-07-20 00:59:42,550 INFO L268 CegarLoopResult]: For program point L718(lines 718 759) no Hoare annotation was computed. [2020-07-20 00:59:42,550 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 00:59:42,550 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string59.offset| |old(#t~string59.offset)|) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |#t~string68.offset| |old(#t~string68.offset)|) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |#t~string66.offset| |old(#t~string66.offset)|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string57.base| |old(#t~string57.base)|) (= |#t~string55.offset| |old(#t~string55.offset)|) (= |#t~string28.offset| |old(#t~string28.offset)|) (= |#t~string57.offset| |old(#t~string57.offset)|) (= ~head~0.offset |old(~head~0.offset)|) (= |#t~string24.base| |old(#t~string24.base)|) (= |#t~string58.offset| |old(#t~string58.offset)|) (= ~head~0.base |old(~head~0.base)|) (= |#t~string64.base| |old(#t~string64.base)|) (= |#t~string8.base| |old(#t~string8.base)|) (= |#t~string66.base| |old(#t~string66.base)|) (= |#t~string2.base| |old(#t~string2.base)|) (= |#t~string28.base| |old(#t~string28.base)|) (= |#t~string67.offset| |old(#t~string67.offset)|) (= |#t~string60.base| |old(#t~string60.base)|) (= |#t~string8.offset| |old(#t~string8.offset)|) (= |#t~string32.base| |old(#t~string32.base)|) (= |#t~string55.base| |old(#t~string55.base)|) (= ~methAndRunningLastTime~0 |old(~methAndRunningLastTime~0)|) (= |#t~string65.base| |old(#t~string65.base)|) (= |#t~string34.base| |old(#t~string34.base)|) (= |#t~string30.offset| |old(#t~string30.offset)|) (= |#t~string22.base| |old(#t~string22.base)|) (= |#t~string30.base| |old(#t~string30.base)|) (= |#t~string2.offset| |old(#t~string2.offset)|) (= |#t~string10.offset| |old(#t~string10.offset)|) (= |#t~string59.base| |old(#t~string59.base)|) (= ~systemActive~0 |old(~systemActive~0)|) (= |#t~string56.offset| |old(#t~string56.offset)|) (= |#t~string60.offset| |old(#t~string60.offset)|) (= |#t~string58.base| |old(#t~string58.base)|) (= |#t~string22.offset| |old(#t~string22.offset)|) (= |#t~string34.offset| |old(#t~string34.offset)|) (= |#t~string69.offset| |old(#t~string69.offset)|) (= |#t~string20.offset| |old(#t~string20.offset)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string32.offset| |old(#t~string32.offset)|) (= |#t~string56.base| |old(#t~string56.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |#t~string65.offset| |old(#t~string65.offset)|) (= |old(#length)| |#length|) (= |#t~string20.base| |old(#t~string20.base)|) (= ~methaneLevelCritical~0 |old(~methaneLevelCritical~0)|) (= |#t~string24.offset| |old(#t~string24.offset)|) (= |#t~string10.base| |old(#t~string10.base)|) (= |#t~string67.base| |old(#t~string67.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#t~string26.base| |old(#t~string26.base)|) (= |#t~string26.offset| |old(#t~string26.offset)|) (= |#valid| |old(#valid)|) (= |#t~string68.base| |old(#t~string68.base)|) (= |#t~string64.offset| |old(#t~string64.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= ~cleanupTimeShifts~0 |old(~cleanupTimeShifts~0)|) (= |#t~string69.base| |old(#t~string69.base)|)) [2020-07-20 00:59:42,550 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 00:59:42,550 INFO L268 CegarLoopResult]: For program point activatePumpFINAL(lines 376 383) no Hoare annotation was computed. [2020-07-20 00:59:42,550 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 376 383) no Hoare annotation was computed. [2020-07-20 00:59:42,551 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 376 383) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (< 1 ~waterLevel~0))) (.cse4 (= 0 ~pumpRunning~0)) (.cse5 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0)) .cse3 .cse4 .cse5))) [2020-07-20 00:59:42,551 INFO L268 CegarLoopResult]: For program point getWaterLevelENTRY(lines 156 164) no Hoare annotation was computed. [2020-07-20 00:59:42,551 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 156 164) no Hoare annotation was computed. [2020-07-20 00:59:42,551 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 156 164) no Hoare annotation was computed. [2020-07-20 00:59:42,551 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 448 466) no Hoare annotation was computed. [2020-07-20 00:59:42,551 INFO L268 CegarLoopResult]: For program point L457(lines 457 461) no Hoare annotation was computed. [2020-07-20 00:59:42,551 INFO L271 CegarLoopResult]: At program point L455(line 455) the Hoare annotation is: true [2020-07-20 00:59:42,551 INFO L268 CegarLoopResult]: For program point L457-2(lines 457 461) no Hoare annotation was computed. [2020-07-20 00:59:42,551 INFO L268 CegarLoopResult]: For program point L455-1(line 455) no Hoare annotation was computed. [2020-07-20 00:59:42,552 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 448 466) the Hoare annotation is: true [2020-07-20 00:59:42,552 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 448 466) no Hoare annotation was computed. [2020-07-20 00:59:42,552 INFO L264 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 112 123) the Hoare annotation is: (let ((.cse8 (= 0 ~pumpRunning~0))) (let ((.cse3 (not (= 0 ~systemActive~0))) (.cse6 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse2 (not (<= ~waterLevel~0 2))) (.cse4 (not .cse8)) (.cse5 (not (<= 1 |old(~methaneLevelCritical~0)|))) (.cse7 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse0 .cse1 .cse2 .cse6 .cse7) (or .cse1 .cse2 (not (< 1 ~waterLevel~0)) .cse8 .cse5 .cse7) (or .cse0 .cse1 .cse2 .cse3 .cse6 .cse4) (or .cse0 .cse1 .cse2 .cse4 .cse5 .cse7)))) [2020-07-20 00:59:42,552 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 112 123) no Hoare annotation was computed. [2020-07-20 00:59:42,552 INFO L268 CegarLoopResult]: For program point L116-1(lines 112 123) no Hoare annotation was computed. [2020-07-20 00:59:42,552 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-20 00:59:42,552 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-20 00:59:42,552 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-20 00:59:42,553 INFO L271 CegarLoopResult]: At program point isMethaneLevelCriticalENTRY(lines 124 132) the Hoare annotation is: true [2020-07-20 00:59:42,553 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 124 132) no Hoare annotation was computed. [2020-07-20 00:59:42,553 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 124 132) no Hoare annotation was computed. [2020-07-20 00:59:42,553 INFO L264 CegarLoopResult]: At program point L280(line 280) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|)) (.cse8 (= 0 ~methAndRunningLastTime~0)) (.cse10 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse17 (= 0 ~methaneLevelCritical~0)) (.cse19 (= 0 ~pumpRunning~0)) (.cse18 (= 1 ~systemActive~0)) (.cse9 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse20 (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|)) (.cse16 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0))) (let ((.cse4 (not (< 1 |old(~waterLevel~0)|))) (.cse12 (and .cse9 .cse20 .cse16)) (.cse7 (not (<= 1 ~methaneLevelCritical~0))) (.cse6 (not (<= |old(~waterLevel~0)| 1))) (.cse1 (and .cse17 .cse9 (<= ~waterLevel~0 1) .cse20 (not .cse19) .cse16 .cse18)) (.cse11 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse15 (and .cse8 .cse19 .cse10)) (.cse5 (not .cse18)) (.cse13 (not (= 0 ~systemActive~0))) (.cse14 (not .cse0)) (.cse2 (not .cse17)) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse7 (and .cse8 .cse9 .cse10) .cse11 .cse12 .cse5) (or .cse7 .cse13 .cse14 .cse3) (or .cse0 .cse7 .cse3 .cse4 .cse12 .cse5) (or .cse7 .cse14 .cse11 .cse3 .cse15 .cse5) (or .cse0 .cse6 .cse1 .cse2 (and .cse9 .cse10 .cse16) .cse5) (or .cse14 .cse11 .cse2 .cse3 .cse15 .cse5) (or .cse13 .cse14 .cse2 .cse3)))) [2020-07-20 00:59:42,553 INFO L264 CegarLoopResult]: At program point L278(lines 278 284) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse8 (= 1 ~systemActive~0)) (.cse3 (= 0 ~methaneLevelCritical~0)) (.cse11 (= 0 ~pumpRunning~0)) (.cse10 (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|)) (.cse7 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0))) (let ((.cse1 (and .cse11 .cse10 .cse7)) (.cse15 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse2 (not .cse3)) (.cse16 (= 0 ~methAndRunningLastTime~0)) (.cse12 (not .cse8)) (.cse13 (not (<= 1 ~methaneLevelCritical~0))) (.cse14 (and .cse11 .cse6 .cse7)) (.cse18 (not (= 0 ~systemActive~0))) (.cse17 (not .cse0)) (.cse9 (not (<= |old(~waterLevel~0)| 2)))) (and (let ((.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (<= ~waterLevel~0 1))) (or .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) .cse9 (and .cse3 .cse4 .cse10 .cse7 .cse8) (and .cse11 .cse5 .cse6 .cse7) .cse12)) (or (not (<= |old(~waterLevel~0)| 1)) .cse13 .cse1 .cse14 .cse15 .cse12) (or .cse0 .cse13 .cse1 .cse9 (not (< 1 |old(~waterLevel~0)|)) .cse12) (or .cse13 (and .cse16 .cse6) .cse17 .cse15 .cse9 .cse12) (or .cse14 .cse18 .cse17 .cse2 .cse9) (or (and .cse16 (< 1 ~waterLevel~0) .cse6) .cse17 .cse15 .cse2 .cse9 (and .cse16 .cse11 .cse6) .cse12) (or .cse13 .cse14 .cse18 .cse17 .cse9)))) [2020-07-20 00:59:42,554 INFO L264 CegarLoopResult]: At program point L273(line 273) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|))) (let ((.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse7 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0)) (.cse5 (not (= 1 ~systemActive~0))) (.cse10 (not (= 0 ~systemActive~0))) (.cse8 (not .cse0)) (.cse9 (not (= 0 ~methaneLevelCritical~0))) (.cse4 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 (and (< 1 ~waterLevel~0) .cse2 (<= ~waterLevel~0 2) .cse3) .cse4 (not (< 1 |old(~waterLevel~0)|)) .cse5) (or (not (<= |old(~waterLevel~0)| 1)) .cse1 (and (= 0 ~methAndRunningLastTime~0) .cse2 .cse6) .cse7 .cse5) (or .cse8 .cse7 .cse9 .cse4 .cse5) (or .cse1 .cse10 .cse8 .cse4) (or .cse1 .cse8 .cse7 .cse4 .cse5) (or .cse0 .cse9 (and .cse2 .cse6 .cse3) .cse4 .cse5) (or .cse10 .cse8 .cse9 .cse4)))) [2020-07-20 00:59:42,554 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 267 290) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|)) (.cse11 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0)) (.cse10 (= 0 ~methAndRunningLastTime~0)) (.cse2 (< 1 ~waterLevel~0)) (.cse4 (<= ~waterLevel~0 2)) (.cse18 (= 0 ~pumpRunning~0))) (let ((.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse9 (not (<= |old(~waterLevel~0)| 1))) (.cse15 (not (= 0 ~methaneLevelCritical~0))) (.cse13 (and .cse10 .cse2 .cse4 .cse18)) (.cse12 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse7 (not (< 1 |old(~waterLevel~0)|))) (.cse8 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse16 (and .cse18 .cse11 .cse5)) (.cse17 (not (= 0 ~systemActive~0))) (.cse14 (not .cse0)) (.cse6 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4 .cse5) .cse6 .cse7 .cse8) (or .cse9 .cse1 (and .cse10 .cse3 .cse11) .cse12 .cse8) (or .cse13 .cse14 .cse12 .cse15 .cse6 .cse7 .cse8) (or .cse0 .cse15 (and .cse3 .cse11 .cse5) .cse6 .cse8) (or .cse16 .cse17 .cse14 .cse15 .cse6) (or .cse9 .cse14 .cse12 .cse15 (and .cse10 .cse18 .cse11) .cse8) (or .cse1 .cse13 .cse14 .cse12 .cse6 .cse7 .cse8) (or .cse1 .cse16 .cse17 .cse14 .cse6)))) [2020-07-20 00:59:42,554 INFO L268 CegarLoopResult]: For program point L271(lines 270 289) no Hoare annotation was computed. [2020-07-20 00:59:42,554 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 267 290) no Hoare annotation was computed. [2020-07-20 00:59:42,554 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 267 290) no Hoare annotation was computed. [2020-07-20 00:59:42,554 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 909 938) no Hoare annotation was computed. [2020-07-20 00:59:42,554 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 909 938) the Hoare annotation is: true [2020-07-20 00:59:42,555 INFO L268 CegarLoopResult]: For program point L923(lines 923 927) no Hoare annotation was computed. [2020-07-20 00:59:42,555 INFO L271 CegarLoopResult]: At program point L923-1(lines 923 927) the Hoare annotation is: true [2020-07-20 00:59:42,555 INFO L268 CegarLoopResult]: For program point L920(line 920) no Hoare annotation was computed. [2020-07-20 00:59:42,555 INFO L271 CegarLoopResult]: At program point L919-2(lines 919 933) the Hoare annotation is: true [2020-07-20 00:59:42,555 INFO L271 CegarLoopResult]: At program point L915(line 915) the Hoare annotation is: true [2020-07-20 00:59:42,555 INFO L268 CegarLoopResult]: For program point L915-1(line 915) no Hoare annotation was computed. [2020-07-20 00:59:42,555 INFO L271 CegarLoopResult]: At program point L934(lines 909 938) the Hoare annotation is: true [2020-07-20 00:59:42,555 INFO L268 CegarLoopResult]: For program point L930(line 930) no Hoare annotation was computed. [2020-07-20 00:59:42,556 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 88 99) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (= 0 ~pumpRunning~0)) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (not (= 1 ~systemActive~0)))) (and (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 ~methAndRunningLastTime~0)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 (and (< 1 ~waterLevel~0) (<= ~waterLevel~0 2)) .cse4 (not (< 1 |old(~waterLevel~0)|)) .cse3) (or (not (= 0 ~methaneLevelCritical~0)) .cse1 .cse4 .cse2 .cse3))) [2020-07-20 00:59:42,556 INFO L268 CegarLoopResult]: For program point L92-1(lines 88 99) no Hoare annotation was computed. [2020-07-20 00:59:42,556 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 88 99) no Hoare annotation was computed. [2020-07-20 00:59:42,556 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 963 969) no Hoare annotation was computed. [2020-07-20 00:59:42,556 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 963 969) the Hoare annotation is: true [2020-07-20 00:59:42,556 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 00:59:42,556 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (= 1 ~systemActive~0)) [2020-07-20 00:59:42,556 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 00:59:42,556 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 00:59:42,557 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 299 323) the Hoare annotation is: (let ((.cse6 (= 0 |old(~pumpRunning~0)|))) (let ((.cse3 (not (= 0 ~methaneLevelCritical~0))) (.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not .cse6)) (.cse4 (= 0 ~pumpRunning~0)) (.cse5 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3 (not (<= ~waterLevel~0 1)) .cse5) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse4 .cse5)))) [2020-07-20 00:59:42,557 INFO L264 CegarLoopResult]: At program point L318(line 318) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|))) (let ((.cse1 (not (= 0 ~methaneLevelCritical~0))) (.cse3 (not (= 0 ~methAndRunningLastTime~0))) (.cse4 (not (<= ~waterLevel~0 2))) (.cse5 (not .cse0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 (not (<= ~waterLevel~0 1)) .cse2) (or .cse3 .cse4 .cse5 .cse1 .cse2) (or .cse3 (not (<= 1 ~methaneLevelCritical~0)) .cse4 .cse5 .cse2)))) [2020-07-20 00:59:42,557 INFO L268 CegarLoopResult]: For program point L318-1(lines 299 323) no Hoare annotation was computed. [2020-07-20 00:59:42,557 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 299 323) no Hoare annotation was computed. [2020-07-20 00:59:42,557 INFO L264 CegarLoopResult]: At program point L313(line 313) the Hoare annotation is: (let ((.cse5 (= 0 |old(~pumpRunning~0)|))) (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~1) (= 0 ~pumpRunning~0))) (.cse2 (not (<= ~waterLevel~0 2))) (.cse3 (not .cse5)) (.cse6 (not (= 0 ~methaneLevelCritical~0))) (.cse4 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2 .cse3 .cse4) (or .cse5 .cse6 (not (<= ~waterLevel~0 1)) .cse4) (or .cse0 .cse1 .cse2 .cse3 .cse6 .cse4)))) [2020-07-20 00:59:42,557 INFO L264 CegarLoopResult]: At program point L309(line 309) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|))) (let ((.cse1 (not (= 0 ~methaneLevelCritical~0))) (.cse2 (not (<= ~waterLevel~0 1))) (.cse4 (not (= 0 ~methAndRunningLastTime~0))) (.cse5 (not (<= 1 ~methaneLevelCritical~0))) (.cse7 (not (<= ~waterLevel~0 2))) (.cse6 (not .cse0)) (.cse8 (= 0 ~pumpRunning~0)) (.cse3 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse6 .cse2 .cse3) (or .cse4 .cse7 .cse6 .cse1 .cse8 .cse3) (or .cse4 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse7 .cse6 .cse8 .cse3)))) [2020-07-20 00:59:42,558 INFO L268 CegarLoopResult]: For program point L307(lines 307 315) no Hoare annotation was computed. [2020-07-20 00:59:42,558 INFO L264 CegarLoopResult]: At program point L305(line 305) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|))) (let ((.cse1 (not (= 0 ~methaneLevelCritical~0))) (.cse3 (not (= 0 ~methAndRunningLastTime~0))) (.cse4 (not (<= ~waterLevel~0 2))) (.cse5 (not .cse0)) (.cse6 (= 0 ~pumpRunning~0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= ~waterLevel~0 1)) .cse2) (or .cse3 .cse4 .cse5 .cse1 .cse6 .cse2) (or .cse3 (not (<= 1 ~methaneLevelCritical~0)) .cse4 .cse5 .cse6 .cse2)))) [2020-07-20 00:59:42,558 INFO L268 CegarLoopResult]: For program point L305-1(line 305) no Hoare annotation was computed. [2020-07-20 00:59:42,558 INFO L268 CegarLoopResult]: For program point L303(lines 303 320) no Hoare annotation was computed. [2020-07-20 00:59:42,558 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 100 111) no Hoare annotation was computed. [2020-07-20 00:59:42,558 INFO L268 CegarLoopResult]: For program point L104-1(lines 100 111) no Hoare annotation was computed. [2020-07-20 00:59:42,558 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 100 111) the Hoare annotation is: (let ((.cse11 (= 0 ~pumpRunning~0))) (let ((.cse2 (not (= 0 ~systemActive~0))) (.cse5 (not .cse11)) (.cse6 (not (<= |old(~waterLevel~0)| 1))) (.cse8 (not (= 0 ~methaneLevelCritical~0))) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse9 (and (< 1 ~waterLevel~0) (<= ~waterLevel~0 2))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse10 (not (< 1 |old(~waterLevel~0)|))) (.cse7 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse0 .cse1 .cse4 .cse5 .cse7) (or .cse6 .cse0 .cse2 .cse8 .cse4 .cse5) (or .cse0 .cse2 .cse8 .cse9 .cse3 .cse10 .cse5) (or .cse0 .cse8 .cse9 .cse3 .cse10 .cse7) (or .cse6 .cse0 .cse8 .cse4 .cse7) (or .cse0 .cse1 .cse9 .cse3 .cse10 .cse7) (or .cse1 .cse11 .cse9 .cse3 .cse10 .cse7)))) [2020-07-20 00:59:42,559 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 1005 1012) no Hoare annotation was computed. [2020-07-20 00:59:42,559 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1009) no Hoare annotation was computed. [2020-07-20 00:59:42,559 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 1005 1012) the Hoare annotation is: true [2020-07-20 00:59:42,559 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 1005 1012) no Hoare annotation was computed. [2020-07-20 00:59:42,559 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 325 349) no Hoare annotation was computed. [2020-07-20 00:59:42,559 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 325 349) the Hoare annotation is: (let ((.cse6 (= 0 |old(~pumpRunning~0)|))) (let ((.cse3 (not (= 0 ~methaneLevelCritical~0))) (.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not .cse6)) (.cse4 (= 0 ~pumpRunning~0)) (.cse5 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3 (not (<= ~waterLevel~0 1)) .cse5) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse4 .cse5)))) [2020-07-20 00:59:42,559 INFO L264 CegarLoopResult]: At program point L344(line 344) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|))) (let ((.cse1 (not (= 0 ~methaneLevelCritical~0))) (.cse3 (not (= 0 ~methAndRunningLastTime~0))) (.cse4 (not (<= ~waterLevel~0 2))) (.cse5 (not .cse0)) (.cse6 (= 0 ~pumpRunning~0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= ~waterLevel~0 1)) .cse2) (or .cse3 .cse4 .cse5 .cse1 .cse6 .cse2) (or .cse3 (not (<= 1 ~methaneLevelCritical~0)) .cse4 .cse5 .cse6 .cse2)))) [2020-07-20 00:59:42,560 INFO L268 CegarLoopResult]: For program point L344-1(lines 325 349) no Hoare annotation was computed. [2020-07-20 00:59:42,560 INFO L264 CegarLoopResult]: At program point L339(line 339) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|))) (let ((.cse1 (not (= 0 ~methaneLevelCritical~0))) (.cse3 (not (= 0 ~methAndRunningLastTime~0))) (.cse4 (not (<= ~waterLevel~0 2))) (.cse5 (not .cse0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 (not (<= ~waterLevel~0 1)) .cse2) (or .cse3 .cse4 .cse5 .cse1 .cse2) (or .cse3 (not (<= 1 ~methaneLevelCritical~0)) .cse4 .cse5 .cse2)))) [2020-07-20 00:59:42,560 INFO L264 CegarLoopResult]: At program point L335(line 335) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|))) (let ((.cse1 (not (= 0 ~methaneLevelCritical~0))) (.cse3 (not (= 0 ~methAndRunningLastTime~0))) (.cse4 (not (<= ~waterLevel~0 2))) (.cse5 (not .cse0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 (not (<= ~waterLevel~0 1)) .cse2) (or .cse3 .cse4 .cse5 .cse1 .cse2) (or .cse3 (not (<= 1 ~methaneLevelCritical~0)) .cse4 .cse5 .cse2)))) [2020-07-20 00:59:42,560 INFO L268 CegarLoopResult]: For program point L333(lines 333 341) no Hoare annotation was computed. [2020-07-20 00:59:42,560 INFO L264 CegarLoopResult]: At program point L331(line 331) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|))) (let ((.cse1 (not (= 0 ~methaneLevelCritical~0))) (.cse3 (not (= 0 ~methAndRunningLastTime~0))) (.cse4 (not (<= ~waterLevel~0 2))) (.cse5 (not .cse0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 (not (<= ~waterLevel~0 1)) .cse2) (or .cse3 .cse4 .cse5 .cse1 .cse2) (or .cse3 (not (<= 1 ~methaneLevelCritical~0)) .cse4 .cse5 .cse2)))) [2020-07-20 00:59:42,560 INFO L268 CegarLoopResult]: For program point L331-1(line 331) no Hoare annotation was computed. [2020-07-20 00:59:42,560 INFO L268 CegarLoopResult]: For program point L329(lines 329 346) no Hoare annotation was computed. [2020-07-20 00:59:42,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 12:59:42 BoogieIcfgContainer [2020-07-20 00:59:42,579 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 00:59:42,580 INFO L168 Benchmark]: Toolchain (without parser) took 137983.90 ms. Allocated memory was 147.8 MB in the beginning and 2.0 GB in the end (delta: 1.9 GB). Free memory was 102.4 MB in the beginning and 353.4 MB in the end (delta: -251.0 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2020-07-20 00:59:42,581 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 147.8 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 00:59:42,581 INFO L168 Benchmark]: CACSL2BoogieTranslator took 745.02 ms. Allocated memory was 147.8 MB in the beginning and 206.0 MB in the end (delta: 58.2 MB). Free memory was 102.2 MB in the beginning and 173.7 MB in the end (delta: -71.5 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2020-07-20 00:59:42,582 INFO L168 Benchmark]: Boogie Preprocessor took 101.12 ms. Allocated memory is still 206.0 MB. Free memory was 173.7 MB in the beginning and 169.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-07-20 00:59:42,582 INFO L168 Benchmark]: RCFGBuilder took 1211.77 ms. Allocated memory was 206.0 MB in the beginning and 235.4 MB in the end (delta: 29.4 MB). Free memory was 169.2 MB in the beginning and 189.9 MB in the end (delta: -20.6 MB). Peak memory consumption was 79.7 MB. Max. memory is 7.1 GB. [2020-07-20 00:59:42,583 INFO L168 Benchmark]: TraceAbstraction took 135920.68 ms. Allocated memory was 235.4 MB in the beginning and 2.0 GB in the end (delta: 1.8 GB). Free memory was 189.9 MB in the beginning and 353.4 MB in the end (delta: -163.6 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2020-07-20 00:59:42,585 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 147.8 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 745.02 ms. Allocated memory was 147.8 MB in the beginning and 206.0 MB in the end (delta: 58.2 MB). Free memory was 102.2 MB in the beginning and 173.7 MB in the end (delta: -71.5 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.12 ms. Allocated memory is still 206.0 MB. Free memory was 173.7 MB in the beginning and 169.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1211.77 ms. Allocated memory was 206.0 MB in the beginning and 235.4 MB in the end (delta: 29.4 MB). Free memory was 169.2 MB in the beginning and 189.9 MB in the end (delta: -20.6 MB). Peak memory consumption was 79.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 135920.68 ms. Allocated memory was 235.4 MB in the beginning and 2.0 GB in the end (delta: 1.8 GB). Free memory was 189.9 MB in the beginning and 353.4 MB in the end (delta: -163.6 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1009]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 201]: Loop Invariant Derived loop invariant: (((!(\old(waterLevel) <= 1) || !(0 == \old(pumpRunning))) || !(0 == \old(methAndRunningLastTime))) || !(\old(methaneLevelCritical) == 0)) || !(1 == \old(systemActive)) - InvariantResult [Line: 919]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 202]: Loop Invariant Derived loop invariant: ((((((((!(\old(waterLevel) <= 1) || (((((0 == splverifierCounter && 1 < waterLevel) && 1 <= methaneLevelCritical) && waterLevel <= 2) && !(0 == pumpRunning)) && 1 == systemActive)) || !(0 == \old(pumpRunning))) || !(0 == \old(methAndRunningLastTime))) || !(\old(methaneLevelCritical) == 0)) || !(1 == \old(systemActive))) || (((((0 == methAndRunningLastTime && 0 == splverifierCounter) && 0 == methaneLevelCritical) && 0 == systemActive) && waterLevel <= 2) && 0 == pumpRunning)) || (((((0 == methAndRunningLastTime && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 0 == systemActive) && waterLevel <= 2) && 0 == pumpRunning)) || (((((0 == splverifierCounter && 1 <= methaneLevelCritical) && waterLevel <= 2) && 0 == pumpRunning) && \old(methAndRunningLastTime) == methAndRunningLastTime) && 1 == systemActive)) || ((((0 == methAndRunningLastTime && 0 == methaneLevelCritical) && 0 == splverifierCounter) && waterLevel <= 2) && 1 == systemActive) - InvariantResult [Line: 909]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 256 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 64.0s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 51.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 71.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2269 SDtfs, 5302 SDslu, 5207 SDs, 0 SdLazy, 15245 SolverSat, 4998 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 27.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1336 GetRequests, 1003 SyntacticMatches, 2 SemanticMatches, 331 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9906 ImplicationChecksByTransitivity, 18.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3630occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 5926 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 70 LocationsWithAnnotation, 5333 PreInvPairs, 5501 NumberOfFragments, 4329 HoareAnnotationTreeSize, 5333 FomulaSimplifications, 4767830647 FormulaSimplificationTreeSizeReduction, 18.7s HoareSimplificationTime, 70 FomulaSimplificationsInter, 91141502 FormulaSimplificationTreeSizeReductionInter, 52.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 1699 NumberOfCodeBlocks, 1615 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1684 ConstructedInterpolants, 0 QuantifiedInterpolants, 602337 SizeOfPredicates, 7 NumberOfNonLiveVariables, 2731 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 324/336 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 correct! Received shutdown request...