/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 16:25:18,393 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 16:25:18,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 16:25:18,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 16:25:18,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 16:25:18,419 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 16:25:18,421 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 16:25:18,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 16:25:18,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 16:25:18,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 16:25:18,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 16:25:18,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 16:25:18,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 16:25:18,441 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 16:25:18,444 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 16:25:18,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 16:25:18,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 16:25:18,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 16:25:18,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 16:25:18,457 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 16:25:18,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 16:25:18,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 16:25:18,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 16:25:18,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 16:25:18,468 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 16:25:18,468 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 16:25:18,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 16:25:18,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 16:25:18,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 16:25:18,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 16:25:18,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 16:25:18,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 16:25:18,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 16:25:18,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 16:25:18,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 16:25:18,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 16:25:18,479 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 16:25:18,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 16:25:18,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 16:25:18,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 16:25:18,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 16:25:18,482 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 16:25:18,491 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 16:25:18,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 16:25:18,492 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 16:25:18,492 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 16:25:18,493 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 16:25:18,493 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 16:25:18,493 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 16:25:18,493 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 16:25:18,493 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 16:25:18,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 16:25:18,494 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 16:25:18,494 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 16:25:18,494 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 16:25:18,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 16:25:18,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 16:25:18,495 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 16:25:18,495 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 16:25:18,495 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 16:25:18,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 16:25:18,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 16:25:18,496 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 16:25:18,496 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 16:25:18,496 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-17 16:25:18,761 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 16:25:18,773 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 16:25:18,777 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 16:25:18,778 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 16:25:18,779 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 16:25:18,780 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product51.cil.c [2020-07-17 16:25:18,842 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/103937286/44d7df437bcb4e4599ea3a85e78d747c/FLAGa21002e6f [2020-07-17 16:25:19,336 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 16:25:19,337 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product51.cil.c [2020-07-17 16:25:19,361 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/103937286/44d7df437bcb4e4599ea3a85e78d747c/FLAGa21002e6f [2020-07-17 16:25:19,585 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/103937286/44d7df437bcb4e4599ea3a85e78d747c [2020-07-17 16:25:19,595 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 16:25:19,598 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 16:25:19,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 16:25:19,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 16:25:19,603 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 16:25:19,604 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 04:25:19" (1/1) ... [2020-07-17 16:25:19,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64d77b1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:25:19, skipping insertion in model container [2020-07-17 16:25:19,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 04:25:19" (1/1) ... [2020-07-17 16:25:19,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 16:25:19,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 16:25:19,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 16:25:19,985 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 16:25:20,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 16:25:20,306 INFO L208 MainTranslator]: Completed translation [2020-07-17 16:25:20,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:25:20 WrapperNode [2020-07-17 16:25:20,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 16:25:20,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 16:25:20,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 16:25:20,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 16:25:20,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:25:20" (1/1) ... [2020-07-17 16:25:20,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:25:20" (1/1) ... [2020-07-17 16:25:20,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:25:20" (1/1) ... [2020-07-17 16:25:20,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:25:20" (1/1) ... [2020-07-17 16:25:20,390 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:25:20" (1/1) ... [2020-07-17 16:25:20,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:25:20" (1/1) ... [2020-07-17 16:25:20,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:25:20" (1/1) ... [2020-07-17 16:25:20,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 16:25:20,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 16:25:20,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 16:25:20,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 16:25:20,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:25:20" (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 [2020-07-17 16:25:20,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 16:25:20,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 16:25:20,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-17 16:25:20,521 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-17 16:25:20,521 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-17 16:25:20,522 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-17 16:25:20,522 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-17 16:25:20,522 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-17 16:25:20,522 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-17 16:25:20,523 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-17 16:25:20,523 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-17 16:25:20,524 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-17 16:25:20,524 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-17 16:25:20,524 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-17 16:25:20,524 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-17 16:25:20,525 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-17 16:25:20,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-17 16:25:20,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-17 16:25:20,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-17 16:25:20,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-17 16:25:20,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-17 16:25:20,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-17 16:25:20,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-17 16:25:20,530 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-17 16:25:20,531 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-17 16:25:20,531 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-17 16:25:20,531 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-17 16:25:20,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-07-17 16:25:20,532 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-17 16:25:20,532 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-17 16:25:20,532 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-17 16:25:20,532 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-17 16:25:20,533 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 16:25:20,533 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-17 16:25:20,533 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-17 16:25:20,533 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-17 16:25:20,533 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-17 16:25:20,534 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-17 16:25:20,534 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-17 16:25:20,534 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-17 16:25:20,534 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-17 16:25:20,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 16:25:20,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 16:25:20,535 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-17 16:25:20,535 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-17 16:25:20,535 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-17 16:25:20,535 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-17 16:25:20,536 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-17 16:25:20,536 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-17 16:25:20,536 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-17 16:25:20,536 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-17 16:25:20,536 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-17 16:25:20,536 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-17 16:25:20,536 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-17 16:25:20,537 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-17 16:25:20,537 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-17 16:25:20,537 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-17 16:25:20,537 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-17 16:25:20,537 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-17 16:25:20,537 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-07-17 16:25:20,537 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-17 16:25:20,538 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-17 16:25:20,538 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-17 16:25:20,538 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-17 16:25:20,538 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-17 16:25:20,538 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-17 16:25:20,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 16:25:20,539 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-17 16:25:20,539 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 16:25:20,539 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-17 16:25:20,540 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-17 16:25:20,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 16:25:20,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-17 16:25:20,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 16:25:20,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-17 16:25:20,541 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-17 16:25:20,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 16:25:20,541 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-17 16:25:20,541 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-17 16:25:20,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 16:25:20,543 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-17 16:25:20,543 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-17 16:25:20,543 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-17 16:25:20,543 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-17 16:25:20,543 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-17 16:25:20,543 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-17 16:25:20,544 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-17 16:25:20,545 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-17 16:25:20,545 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-17 16:25:20,545 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-17 16:25:20,545 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-17 16:25:20,546 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 16:25:20,546 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-17 16:25:20,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 16:25:20,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-17 16:25:20,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 16:25:21,779 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 16:25:21,780 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-17 16:25:21,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 04:25:21 BoogieIcfgContainer [2020-07-17 16:25:21,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 16:25:21,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 16:25:21,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 16:25:21,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 16:25:21,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 04:25:19" (1/3) ... [2020-07-17 16:25:21,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@91eb68f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 04:25:21, skipping insertion in model container [2020-07-17 16:25:21,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:25:20" (2/3) ... [2020-07-17 16:25:21,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@91eb68f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 04:25:21, skipping insertion in model container [2020-07-17 16:25:21,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 04:25:21" (3/3) ... [2020-07-17 16:25:21,801 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product51.cil.c [2020-07-17 16:25:21,811 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 16:25:21,821 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 16:25:21,838 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 16:25:21,861 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 16:25:21,862 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 16:25:21,862 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-17 16:25:21,862 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 16:25:21,863 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 16:25:21,863 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 16:25:21,863 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 16:25:21,863 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 16:25:21,898 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states. [2020-07-17 16:25:21,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-17 16:25:21,919 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:25:21,920 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:25:21,920 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:25:21,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:25:21,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1497316138, now seen corresponding path program 1 times [2020-07-17 16:25:21,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:25:21,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1130043173] [2020-07-17 16:25:21,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:25:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:22,660 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:25:22,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:22,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:22,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:22,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:22,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:25:22,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1130043173] [2020-07-17 16:25:22,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:25:22,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 16:25:22,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543485816] [2020-07-17 16:25:22,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 16:25:22,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:25:22,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 16:25:22,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 16:25:22,850 INFO L87 Difference]: Start difference. First operand 324 states. Second operand 3 states. [2020-07-17 16:25:24,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:25:24,194 INFO L93 Difference]: Finished difference Result 503 states and 599 transitions. [2020-07-17 16:25:24,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 16:25:24,197 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-07-17 16:25:24,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:25:24,214 INFO L225 Difference]: With dead ends: 503 [2020-07-17 16:25:24,214 INFO L226 Difference]: Without dead ends: 310 [2020-07-17 16:25:24,220 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 16:25:24,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2020-07-17 16:25:24,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 267. [2020-07-17 16:25:24,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-07-17 16:25:24,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 291 transitions. [2020-07-17 16:25:24,366 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 291 transitions. Word has length 142 [2020-07-17 16:25:24,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:25:24,367 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 291 transitions. [2020-07-17 16:25:24,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 16:25:24,367 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 291 transitions. [2020-07-17 16:25:24,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-17 16:25:24,372 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:25:24,372 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:25:24,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 16:25:24,373 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:25:24,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:25:24,373 INFO L82 PathProgramCache]: Analyzing trace with hash -316918305, now seen corresponding path program 1 times [2020-07-17 16:25:24,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:25:24,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [293173712] [2020-07-17 16:25:24,374 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:25:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:24,775 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:25:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:24,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:24,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:24,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:24,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:25:24,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [293173712] [2020-07-17 16:25:24,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:25:24,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 16:25:24,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300186310] [2020-07-17 16:25:24,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 16:25:24,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:25:24,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 16:25:24,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 16:25:24,871 INFO L87 Difference]: Start difference. First operand 267 states and 291 transitions. Second operand 4 states. [2020-07-17 16:25:25,456 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:26,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:25:26,468 INFO L93 Difference]: Finished difference Result 414 states and 466 transitions. [2020-07-17 16:25:26,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 16:25:26,475 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-07-17 16:25:26,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:25:26,479 INFO L225 Difference]: With dead ends: 414 [2020-07-17 16:25:26,479 INFO L226 Difference]: Without dead ends: 293 [2020-07-17 16:25:26,481 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 16:25:26,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-07-17 16:25:26,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 257. [2020-07-17 16:25:26,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-07-17 16:25:26,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 278 transitions. [2020-07-17 16:25:26,559 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 278 transitions. Word has length 143 [2020-07-17 16:25:26,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:25:26,560 INFO L479 AbstractCegarLoop]: Abstraction has 257 states and 278 transitions. [2020-07-17 16:25:26,560 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 16:25:26,561 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 278 transitions. [2020-07-17 16:25:26,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-07-17 16:25:26,563 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:25:26,563 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:25:26,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 16:25:26,564 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:25:26,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:25:26,564 INFO L82 PathProgramCache]: Analyzing trace with hash -816638074, now seen corresponding path program 1 times [2020-07-17 16:25:26,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:25:26,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [992388149] [2020-07-17 16:25:26,565 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:25:26,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:26,859 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:25:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:26,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:26,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:26,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:26,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:27,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:25:27,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [992388149] [2020-07-17 16:25:27,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:25:27,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-17 16:25:27,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86732371] [2020-07-17 16:25:27,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 16:25:27,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:25:27,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 16:25:27,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-17 16:25:27,030 INFO L87 Difference]: Start difference. First operand 257 states and 278 transitions. Second operand 9 states. [2020-07-17 16:25:27,471 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:25:27,800 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:25:28,083 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:25:28,328 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:28,573 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:25:28,795 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:29,723 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:31,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:25:31,917 INFO L93 Difference]: Finished difference Result 682 states and 785 transitions. [2020-07-17 16:25:31,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-17 16:25:31,918 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 152 [2020-07-17 16:25:31,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:25:31,924 INFO L225 Difference]: With dead ends: 682 [2020-07-17 16:25:31,924 INFO L226 Difference]: Without dead ends: 535 [2020-07-17 16:25:31,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-07-17 16:25:31,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2020-07-17 16:25:32,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 468. [2020-07-17 16:25:32,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2020-07-17 16:25:32,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 524 transitions. [2020-07-17 16:25:32,121 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 524 transitions. Word has length 152 [2020-07-17 16:25:32,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:25:32,123 INFO L479 AbstractCegarLoop]: Abstraction has 468 states and 524 transitions. [2020-07-17 16:25:32,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 16:25:32,123 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 524 transitions. [2020-07-17 16:25:32,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-17 16:25:32,129 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:25:32,130 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:25:32,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 16:25:32,130 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:25:32,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:25:32,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1954752290, now seen corresponding path program 1 times [2020-07-17 16:25:32,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:25:32,139 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2066704872] [2020-07-17 16:25:32,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:25:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:32,452 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:25:32,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:32,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:32,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:32,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:32,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:32,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:32,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:32,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:25:32,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2066704872] [2020-07-17 16:25:32,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:25:32,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-17 16:25:32,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852257988] [2020-07-17 16:25:32,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 16:25:32,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:25:32,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 16:25:32,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-17 16:25:32,602 INFO L87 Difference]: Start difference. First operand 468 states and 524 transitions. Second operand 9 states. [2020-07-17 16:25:33,183 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:25:34,718 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:35,003 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:25:35,350 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:35,602 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:25:35,831 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:25:36,049 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:36,295 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:36,801 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:37,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:25:37,798 INFO L93 Difference]: Finished difference Result 1299 states and 1554 transitions. [2020-07-17 16:25:37,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-17 16:25:37,799 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-07-17 16:25:37,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:25:37,808 INFO L225 Difference]: With dead ends: 1299 [2020-07-17 16:25:37,808 INFO L226 Difference]: Without dead ends: 941 [2020-07-17 16:25:37,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-07-17 16:25:37,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2020-07-17 16:25:38,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 787. [2020-07-17 16:25:38,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 787 states. [2020-07-17 16:25:38,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 894 transitions. [2020-07-17 16:25:38,061 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 894 transitions. Word has length 161 [2020-07-17 16:25:38,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:25:38,062 INFO L479 AbstractCegarLoop]: Abstraction has 787 states and 894 transitions. [2020-07-17 16:25:38,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 16:25:38,062 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 894 transitions. [2020-07-17 16:25:38,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-07-17 16:25:38,066 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:25:38,066 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:25:38,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 16:25:38,066 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:25:38,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:25:38,067 INFO L82 PathProgramCache]: Analyzing trace with hash -2058158355, now seen corresponding path program 1 times [2020-07-17 16:25:38,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:25:38,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [419032143] [2020-07-17 16:25:38,068 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:25:38,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:38,399 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:25:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:38,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:38,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:38,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:38,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:25:38,537 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [419032143] [2020-07-17 16:25:38,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:25:38,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-17 16:25:38,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634636323] [2020-07-17 16:25:38,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-17 16:25:38,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:25:38,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-17 16:25:38,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-17 16:25:38,539 INFO L87 Difference]: Start difference. First operand 787 states and 894 transitions. Second operand 10 states. [2020-07-17 16:25:39,118 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:25:40,679 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:40,915 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:25:41,206 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:41,507 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:25:41,759 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:42,339 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:25:42,565 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:42,897 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:44,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:25:44,067 INFO L93 Difference]: Finished difference Result 2028 states and 2497 transitions. [2020-07-17 16:25:44,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-17 16:25:44,068 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 166 [2020-07-17 16:25:44,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:25:44,077 INFO L225 Difference]: With dead ends: 2028 [2020-07-17 16:25:44,077 INFO L226 Difference]: Without dead ends: 1351 [2020-07-17 16:25:44,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-07-17 16:25:44,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2020-07-17 16:25:44,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1089. [2020-07-17 16:25:44,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1089 states. [2020-07-17 16:25:44,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 1257 transitions. [2020-07-17 16:25:44,434 INFO L78 Accepts]: Start accepts. Automaton has 1089 states and 1257 transitions. Word has length 166 [2020-07-17 16:25:44,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:25:44,434 INFO L479 AbstractCegarLoop]: Abstraction has 1089 states and 1257 transitions. [2020-07-17 16:25:44,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-17 16:25:44,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 1257 transitions. [2020-07-17 16:25:44,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-07-17 16:25:44,438 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:25:44,439 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:25:44,439 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 16:25:44,439 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:25:44,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:25:44,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1232487903, now seen corresponding path program 1 times [2020-07-17 16:25:44,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:25:44,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2075801401] [2020-07-17 16:25:44,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:25:44,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:44,694 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:25:44,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:44,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:44,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:44,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:44,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:44,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:44,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:44,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:44,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:44,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:25:44,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2075801401] [2020-07-17 16:25:44,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:25:44,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-17 16:25:44,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855158293] [2020-07-17 16:25:44,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-17 16:25:44,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:25:44,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-17 16:25:44,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-07-17 16:25:44,906 INFO L87 Difference]: Start difference. First operand 1089 states and 1257 transitions. Second operand 13 states. [2020-07-17 16:25:45,434 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:45,699 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:25:45,968 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:46,246 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:25:46,473 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:47,297 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:47,544 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:25:47,806 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:48,079 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:25:48,315 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:49,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:25:49,847 INFO L93 Difference]: Finished difference Result 2484 states and 3093 transitions. [2020-07-17 16:25:49,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-17 16:25:49,852 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 195 [2020-07-17 16:25:49,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:25:49,862 INFO L225 Difference]: With dead ends: 2484 [2020-07-17 16:25:49,862 INFO L226 Difference]: Without dead ends: 1505 [2020-07-17 16:25:49,866 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2020-07-17 16:25:49,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2020-07-17 16:25:50,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1119. [2020-07-17 16:25:50,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1119 states. [2020-07-17 16:25:50,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 1289 transitions. [2020-07-17 16:25:50,339 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 1289 transitions. Word has length 195 [2020-07-17 16:25:50,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:25:50,339 INFO L479 AbstractCegarLoop]: Abstraction has 1119 states and 1289 transitions. [2020-07-17 16:25:50,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-17 16:25:50,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 1289 transitions. [2020-07-17 16:25:50,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-07-17 16:25:50,343 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:25:50,344 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:25:50,344 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-17 16:25:50,344 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:25:50,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:25:50,345 INFO L82 PathProgramCache]: Analyzing trace with hash -258617727, now seen corresponding path program 1 times [2020-07-17 16:25:50,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:25:50,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [957444788] [2020-07-17 16:25:50,345 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:25:50,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:50,584 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:25:50,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:50,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:50,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:50,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:50,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:50,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:50,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:50,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:50,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:25:50,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [957444788] [2020-07-17 16:25:50,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:25:50,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-17 16:25:50,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125619813] [2020-07-17 16:25:50,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-17 16:25:50,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:25:50,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-17 16:25:50,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-17 16:25:50,767 INFO L87 Difference]: Start difference. First operand 1119 states and 1289 transitions. Second operand 10 states. [2020-07-17 16:25:52,022 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:52,263 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:25:52,520 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-17 16:25:52,771 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:53,033 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:25:53,259 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:54,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:25:54,608 INFO L93 Difference]: Finished difference Result 2526 states and 3082 transitions. [2020-07-17 16:25:54,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-17 16:25:54,609 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 195 [2020-07-17 16:25:54,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:25:54,621 INFO L225 Difference]: With dead ends: 2526 [2020-07-17 16:25:54,621 INFO L226 Difference]: Without dead ends: 1517 [2020-07-17 16:25:54,627 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-07-17 16:25:54,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2020-07-17 16:25:55,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 1151. [2020-07-17 16:25:55,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1151 states. [2020-07-17 16:25:55,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1151 states to 1151 states and 1321 transitions. [2020-07-17 16:25:55,135 INFO L78 Accepts]: Start accepts. Automaton has 1151 states and 1321 transitions. Word has length 195 [2020-07-17 16:25:55,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:25:55,135 INFO L479 AbstractCegarLoop]: Abstraction has 1151 states and 1321 transitions. [2020-07-17 16:25:55,135 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-17 16:25:55,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1151 states and 1321 transitions. [2020-07-17 16:25:55,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-07-17 16:25:55,139 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:25:55,140 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:25:55,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-17 16:25:55,140 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:25:55,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:25:55,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1422185412, now seen corresponding path program 1 times [2020-07-17 16:25:55,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:25:55,141 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1416839163] [2020-07-17 16:25:55,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:25:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:55,496 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:25:55,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:55,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:55,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:55,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:55,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:55,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:55,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:55,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:55,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:55,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:55,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:55,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:25:55,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1416839163] [2020-07-17 16:25:55,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:25:55,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-17 16:25:55,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422755630] [2020-07-17 16:25:55,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-17 16:25:55,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:25:55,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-17 16:25:55,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-17 16:25:55,699 INFO L87 Difference]: Start difference. First operand 1151 states and 1321 transitions. Second operand 7 states. [2020-07-17 16:25:56,147 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:25:56,675 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:25:59,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:25:59,962 INFO L93 Difference]: Finished difference Result 3852 states and 4799 transitions. [2020-07-17 16:25:59,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-17 16:25:59,962 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 195 [2020-07-17 16:25:59,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:25:59,977 INFO L225 Difference]: With dead ends: 3852 [2020-07-17 16:25:59,978 INFO L226 Difference]: Without dead ends: 2811 [2020-07-17 16:25:59,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-07-17 16:25:59,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2811 states. [2020-07-17 16:26:01,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2811 to 2307. [2020-07-17 16:26:01,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2307 states. [2020-07-17 16:26:01,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2307 states to 2307 states and 2677 transitions. [2020-07-17 16:26:01,078 INFO L78 Accepts]: Start accepts. Automaton has 2307 states and 2677 transitions. Word has length 195 [2020-07-17 16:26:01,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:26:01,078 INFO L479 AbstractCegarLoop]: Abstraction has 2307 states and 2677 transitions. [2020-07-17 16:26:01,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-17 16:26:01,078 INFO L276 IsEmpty]: Start isEmpty. Operand 2307 states and 2677 transitions. [2020-07-17 16:26:01,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-07-17 16:26:01,085 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:26:01,086 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:26:01,086 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-17 16:26:01,086 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:26:01,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:26:01,087 INFO L82 PathProgramCache]: Analyzing trace with hash -921073071, now seen corresponding path program 1 times [2020-07-17 16:26:01,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:26:01,087 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1964184206] [2020-07-17 16:26:01,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:26:01,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 16:26:01,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 16:26:01,449 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-17 16:26:01,450 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 16:26:01,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-17 16:26:01,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 04:26:01 BoogieIcfgContainer [2020-07-17 16:26:01,803 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 16:26:01,805 INFO L168 Benchmark]: Toolchain (without parser) took 42208.33 ms. Allocated memory was 139.5 MB in the beginning and 949.0 MB in the end (delta: 809.5 MB). Free memory was 102.5 MB in the beginning and 653.5 MB in the end (delta: -551.0 MB). Peak memory consumption was 258.5 MB. Max. memory is 7.1 GB. [2020-07-17 16:26:01,806 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 16:26:01,807 INFO L168 Benchmark]: CACSL2BoogieTranslator took 707.73 ms. Allocated memory was 139.5 MB in the beginning and 205.5 MB in the end (delta: 66.1 MB). Free memory was 102.1 MB in the beginning and 175.0 MB in the end (delta: -72.9 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB. [2020-07-17 16:26:01,807 INFO L168 Benchmark]: Boogie Preprocessor took 130.32 ms. Allocated memory is still 205.5 MB. Free memory was 175.0 MB in the beginning and 170.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-17 16:26:01,808 INFO L168 Benchmark]: RCFGBuilder took 1352.44 ms. Allocated memory was 205.5 MB in the beginning and 236.5 MB in the end (delta: 30.9 MB). Free memory was 170.9 MB in the beginning and 176.1 MB in the end (delta: -5.1 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2020-07-17 16:26:01,809 INFO L168 Benchmark]: TraceAbstraction took 40009.76 ms. Allocated memory was 236.5 MB in the beginning and 949.0 MB in the end (delta: 712.5 MB). Free memory was 174.6 MB in the beginning and 653.5 MB in the end (delta: -478.8 MB). Peak memory consumption was 233.7 MB. Max. memory is 7.1 GB. [2020-07-17 16:26:01,812 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 707.73 ms. Allocated memory was 139.5 MB in the beginning and 205.5 MB in the end (delta: 66.1 MB). Free memory was 102.1 MB in the beginning and 175.0 MB in the end (delta: -72.9 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.32 ms. Allocated memory is still 205.5 MB. Free memory was 175.0 MB in the beginning and 170.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1352.44 ms. Allocated memory was 205.5 MB in the beginning and 236.5 MB in the end (delta: 30.9 MB). Free memory was 170.9 MB in the beginning and 176.1 MB in the end (delta: -5.1 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 40009.76 ms. Allocated memory was 236.5 MB in the beginning and 949.0 MB in the end (delta: 712.5 MB). Free memory was 174.6 MB in the beginning and 653.5 MB in the end (delta: -478.8 MB). Peak memory consumption was 233.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 704]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L121] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=172, \old(head)=164, \old(head)=176, \old(methaneLevelCritical)=148, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=146, cleanupTimeShifts=172, head={176:164}, methaneLevelCritical=148, pumpRunning=0, systemActive=139, waterLevel=146] [L122] int systemActive = 1; VAL [\old(cleanupTimeShifts)=172, \old(head)=176, \old(head)=164, \old(methaneLevelCritical)=148, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=146, cleanupTimeShifts=172, head={176:164}, methaneLevelCritical=148, pumpRunning=0, systemActive=1, waterLevel=146] [L503] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=172, \old(head)=176, \old(head)=164, \old(methaneLevelCritical)=148, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=146, cleanupTimeShifts=172, head={0:0}, methaneLevelCritical=148, pumpRunning=0, systemActive=1, waterLevel=146] [L773] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=172, \old(head)=164, \old(head)=176, \old(methaneLevelCritical)=148, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=146, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=148, pumpRunning=0, systemActive=1, waterLevel=146] [L870] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=172, \old(head)=164, \old(head)=176, \old(methaneLevelCritical)=148, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=146, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=148, pumpRunning=0, systemActive=1, waterLevel=1] [L871] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=172, \old(head)=164, \old(head)=176, \old(methaneLevelCritical)=148, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=146, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L846] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L847] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L851] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L852] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L853] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L738] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L741] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L742] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L853] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L853] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L855] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L857] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L858] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L840] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L46] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L47] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L48] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L49] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L50] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L53] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L55] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L57] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L63] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L65] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L67] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L888] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L889] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L67] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L73] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L75] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L77] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L900] COND FALSE !(\read(methaneLevelCritical)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L903] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L77] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L83] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L85] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L100] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L129] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L136] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L138] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L184] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L187] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L202] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L158] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L161] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L163] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L281] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L282] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L283] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L287] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L950] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L953] COND FALSE !(waterLevel < 2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L957] retValue_acc = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L958] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L287] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L287] tmp = isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L289] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L292] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L294] retValue_acc = tmp___0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L295] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L163] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L163] tmp = isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L165] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L167] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L212] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L167] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L202] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L138] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L144] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L748] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L749] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L753] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L909] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L912] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L913] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L753] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L753] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L755] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L757] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L236] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L239] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L240] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L757] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L757] tmp___0 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L759] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L761] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L704] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 643 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 39.5s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 31.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2037 SDtfs, 3657 SDslu, 3706 SDs, 0 SdLazy, 8291 SolverSat, 1120 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 299 GetRequests, 189 SyntacticMatches, 3 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 12.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2307occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 1818 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 1549 NumberOfCodeBlocks, 1549 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1341 ConstructedInterpolants, 0 QuantifiedInterpolants, 578946 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...