/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:24:52,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:24:52,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:24:52,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:24:52,489 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:24:52,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:24:52,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:24:52,493 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:24:52,495 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:24:52,496 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:24:52,497 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:24:52,498 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:24:52,498 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:24:52,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:24:52,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:24:52,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:24:52,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:24:52,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:24:52,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:24:52,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:24:52,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:24:52,509 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:24:52,510 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:24:52,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:24:52,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:24:52,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:24:52,514 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:24:52,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:24:52,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:24:52,516 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:24:52,516 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:24:52,517 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:24:52,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:24:52,519 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:24:52,519 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:24:52,520 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:24:52,520 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:24:52,521 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:24:52,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:24:52,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:24:52,522 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:24:52,523 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 12:24:52,531 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:24:52,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:24:52,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:24:52,533 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:24:52,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:24:52,533 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:24:52,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:24:52,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:24:52,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:24:52,534 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:24:52,534 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:24:52,535 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:24:52,535 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:24:52,535 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:24:52,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:24:52,535 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:24:52,536 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:24:52,536 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:24:52,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:24:52,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:24:52,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:24:52,537 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:24:52,537 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:24:52,860 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:24:52,875 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:24:52,878 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:24:52,879 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:24:52,880 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:24:52,881 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2020-07-07 12:24:52,941 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74b23387d/b09a04d90c234870baeb651eeb7218df/FLAGfef0ce3aa [2020-07-07 12:24:53,433 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:24:53,434 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2020-07-07 12:24:53,457 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74b23387d/b09a04d90c234870baeb651eeb7218df/FLAGfef0ce3aa [2020-07-07 12:24:53,782 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74b23387d/b09a04d90c234870baeb651eeb7218df [2020-07-07 12:24:53,790 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:24:53,792 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:24:53,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:24:53,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:24:53,796 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:24:53,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:24:53" (1/1) ... [2020-07-07 12:24:53,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44a8793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:24:53, skipping insertion in model container [2020-07-07 12:24:53,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:24:53" (1/1) ... [2020-07-07 12:24:53,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:24:53,871 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:24:54,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:24:54,336 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:24:54,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:24:54,454 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:24:54,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:24:54 WrapperNode [2020-07-07 12:24:54,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:24:54,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:24:54,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:24:54,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:24:54,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:24:54" (1/1) ... [2020-07-07 12:24:54,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:24:54" (1/1) ... [2020-07-07 12:24:54,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:24:54" (1/1) ... [2020-07-07 12:24:54,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:24:54" (1/1) ... [2020-07-07 12:24:54,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:24:54" (1/1) ... [2020-07-07 12:24:54,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:24:54" (1/1) ... [2020-07-07 12:24:54,532 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:24:54" (1/1) ... [2020-07-07 12:24:54,540 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:24:54,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:24:54,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:24:54,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:24:54,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:24:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:24:54,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:24:54,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:24:54,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:24:54,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:24:54,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:24:54,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:24:54,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:24:54,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:24:54,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:24:54,606 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:24:54,606 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:24:54,606 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:24:54,606 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:24:54,606 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:24:54,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-07-07 12:24:54,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:24:54,607 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:24:54,607 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:24:54,607 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:24:54,607 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:24:54,607 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:24:54,608 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 12:24:54,608 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-07 12:24:54,608 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:24:54,608 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:24:54,608 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:24:54,609 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:24:54,609 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:24:54,609 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:24:54,609 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-07 12:24:54,609 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:24:54,609 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:24:54,609 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:24:54,610 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:24:54,610 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:24:54,610 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:24:54,610 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:24:54,610 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-07 12:24:54,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:24:54,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:24:54,611 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:24:54,611 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:24:54,611 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:24:54,611 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:24:54,612 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:24:54,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:24:54,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:24:54,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:24:54,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:24:54,612 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:24:54,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:24:54,613 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:24:54,613 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:24:54,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:24:54,613 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:24:54,613 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:24:54,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:24:54,614 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:24:54,614 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:24:54,614 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:24:54,614 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:24:54,614 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:24:54,614 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:24:54,614 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:24:54,615 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:24:54,615 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:24:54,615 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:24:54,615 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:24:54,615 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:24:54,615 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:24:54,615 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:24:54,616 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:24:54,616 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:24:54,616 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:24:54,616 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-07-07 12:24:54,616 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:24:54,616 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:24:54,617 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:24:54,617 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-07 12:24:54,617 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:24:54,617 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:24:54,617 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:24:54,617 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 12:24:54,618 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-07 12:24:54,618 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-07 12:24:54,618 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:24:54,618 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:24:54,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:24:54,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:24:54,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:24:55,773 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:24:55,774 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:24:55,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:24:55 BoogieIcfgContainer [2020-07-07 12:24:55,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:24:55,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:24:55,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:24:55,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:24:55,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:24:53" (1/3) ... [2020-07-07 12:24:55,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47a17331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:24:55, skipping insertion in model container [2020-07-07 12:24:55,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:24:54" (2/3) ... [2020-07-07 12:24:55,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47a17331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:24:55, skipping insertion in model container [2020-07-07 12:24:55,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:24:55" (3/3) ... [2020-07-07 12:24:55,792 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product37.cil.c [2020-07-07 12:24:55,803 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:24:55,812 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:24:55,827 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:24:55,849 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:24:55,850 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:24:55,850 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:24:55,850 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:24:55,850 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:24:55,850 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:24:55,851 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:24:55,851 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:24:55,871 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states. [2020-07-07 12:24:55,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-07 12:24:55,893 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:24:55,894 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] [2020-07-07 12:24:55,894 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:24:55,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:24:55,901 INFO L82 PathProgramCache]: Analyzing trace with hash -382472662, now seen corresponding path program 1 times [2020-07-07 12:24:55,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:24:55,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1227101568] [2020-07-07 12:24:55,911 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:24:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:24:56,646 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:24:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:24:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:24:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:24:56,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:24:56,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:24:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:24:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:24:56,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:24:56,856 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:24:56,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1227101568] [2020-07-07 12:24:56,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:24:56,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 12:24:56,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57757873] [2020-07-07 12:24:56,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 12:24:56,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:24:56,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 12:24:56,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:24:56,894 INFO L87 Difference]: Start difference. First operand 301 states. Second operand 3 states. [2020-07-07 12:24:58,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:24:58,274 INFO L93 Difference]: Finished difference Result 467 states and 558 transitions. [2020-07-07 12:24:58,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 12:24:58,276 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-07-07 12:24:58,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:24:58,294 INFO L225 Difference]: With dead ends: 467 [2020-07-07 12:24:58,294 INFO L226 Difference]: Without dead ends: 291 [2020-07-07 12:24:58,303 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 [2020-07-07 12:24:58,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-07-07 12:24:58,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 250. [2020-07-07 12:24:58,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-07-07 12:24:58,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 272 transitions. [2020-07-07 12:24:58,440 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 272 transitions. Word has length 142 [2020-07-07 12:24:58,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:24:58,441 INFO L479 AbstractCegarLoop]: Abstraction has 250 states and 272 transitions. [2020-07-07 12:24:58,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 12:24:58,442 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 272 transitions. [2020-07-07 12:24:58,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-07 12:24:58,446 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:24:58,446 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] [2020-07-07 12:24:58,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:24:58,447 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:24:58,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:24:58,448 INFO L82 PathProgramCache]: Analyzing trace with hash -443770342, now seen corresponding path program 1 times [2020-07-07 12:24:58,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:24:58,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1801391479] [2020-07-07 12:24:58,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:24:58,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:24:58,851 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:24:58,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:24:58,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:24:58,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:24:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:24:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:24:58,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:24:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:24:58,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:24:58,936 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:24:58,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1801391479] [2020-07-07 12:24:58,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:24:58,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:24:58,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264840883] [2020-07-07 12:24:58,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:24:58,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:24:58,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:24:58,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:24:58,939 INFO L87 Difference]: Start difference. First operand 250 states and 272 transitions. Second operand 4 states. [2020-07-07 12:24:59,591 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:25:00,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:25:00,507 INFO L93 Difference]: Finished difference Result 384 states and 433 transitions. [2020-07-07 12:25:00,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 12:25:00,507 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-07-07 12:25:00,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:25:00,511 INFO L225 Difference]: With dead ends: 384 [2020-07-07 12:25:00,512 INFO L226 Difference]: Without dead ends: 274 [2020-07-07 12:25:00,514 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 12:25:00,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-07-07 12:25:00,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 240. [2020-07-07 12:25:00,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-07-07 12:25:00,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 259 transitions. [2020-07-07 12:25:00,585 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 259 transitions. Word has length 143 [2020-07-07 12:25:00,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:25:00,586 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 259 transitions. [2020-07-07 12:25:00,586 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:25:00,586 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 259 transitions. [2020-07-07 12:25:00,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-07-07 12:25:00,589 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:25:00,589 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] [2020-07-07 12:25:00,589 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:25:00,590 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:25:00,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:25:00,590 INFO L82 PathProgramCache]: Analyzing trace with hash 149326545, now seen corresponding path program 1 times [2020-07-07 12:25:00,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:25:00,591 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1972117591] [2020-07-07 12:25:00,591 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:25:00,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:00,977 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:25:01,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:01,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:01,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:01,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:01,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:01,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:01,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:25:01,190 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:25:01,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1972117591] [2020-07-07 12:25:01,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:25:01,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:25:01,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589887545] [2020-07-07 12:25:01,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:25:01,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:25:01,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:25:01,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:25:01,194 INFO L87 Difference]: Start difference. First operand 240 states and 259 transitions. Second operand 9 states. [2020-07-07 12:25:01,675 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:25:01,998 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:25:02,279 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:25:02,547 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:25:02,786 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:25:03,028 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:25:04,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:25:04,535 INFO L93 Difference]: Finished difference Result 404 states and 458 transitions. [2020-07-07 12:25:04,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 12:25:04,536 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 152 [2020-07-07 12:25:04,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:25:04,540 INFO L225 Difference]: With dead ends: 404 [2020-07-07 12:25:04,544 INFO L226 Difference]: Without dead ends: 274 [2020-07-07 12:25:04,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-07-07 12:25:04,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-07-07 12:25:04,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 240. [2020-07-07 12:25:04,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-07-07 12:25:04,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 258 transitions. [2020-07-07 12:25:04,646 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 258 transitions. Word has length 152 [2020-07-07 12:25:04,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:25:04,647 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 258 transitions. [2020-07-07 12:25:04,647 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:25:04,647 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 258 transitions. [2020-07-07 12:25:04,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-07-07 12:25:04,649 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:25:04,649 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] [2020-07-07 12:25:04,650 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:25:04,650 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:25:04,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:25:04,650 INFO L82 PathProgramCache]: Analyzing trace with hash -2076870304, now seen corresponding path program 1 times [2020-07-07 12:25:04,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:25:04,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [996483756] [2020-07-07 12:25:04,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:25:04,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:04,947 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:25:04,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:05,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:05,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:05,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:05,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:05,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:05,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:25:05,084 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:25:05,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [996483756] [2020-07-07 12:25:05,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:25:05,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 12:25:05,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558570017] [2020-07-07 12:25:05,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 12:25:05,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:25:05,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 12:25:05,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-07 12:25:05,086 INFO L87 Difference]: Start difference. First operand 240 states and 258 transitions. Second operand 6 states. [2020-07-07 12:25:05,700 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:25:07,134 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:25:07,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:25:07,766 INFO L93 Difference]: Finished difference Result 535 states and 613 transitions. [2020-07-07 12:25:07,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 12:25:07,767 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2020-07-07 12:25:07,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:25:07,770 INFO L225 Difference]: With dead ends: 535 [2020-07-07 12:25:07,770 INFO L226 Difference]: Without dead ends: 405 [2020-07-07 12:25:07,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-07-07 12:25:07,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2020-07-07 12:25:07,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 346. [2020-07-07 12:25:07,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-07-07 12:25:07,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 373 transitions. [2020-07-07 12:25:07,916 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 373 transitions. Word has length 165 [2020-07-07 12:25:07,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:25:07,917 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 373 transitions. [2020-07-07 12:25:07,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 12:25:07,917 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 373 transitions. [2020-07-07 12:25:07,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-07-07 12:25:07,919 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:25:07,919 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] [2020-07-07 12:25:07,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:25:07,920 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:25:07,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:25:07,920 INFO L82 PathProgramCache]: Analyzing trace with hash -302631432, now seen corresponding path program 1 times [2020-07-07 12:25:07,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:25:07,921 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [498468901] [2020-07-07 12:25:07,921 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:25:07,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:08,235 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:25:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:08,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:08,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:08,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:08,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:08,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:08,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:08,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:08,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:08,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:25:08,487 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:25:08,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [498468901] [2020-07-07 12:25:08,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:25:08,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-07 12:25:08,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760540101] [2020-07-07 12:25:08,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-07 12:25:08,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:25:08,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-07 12:25:08,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-07-07 12:25:08,489 INFO L87 Difference]: Start difference. First operand 346 states and 373 transitions. Second operand 12 states. [2020-07-07 12:25:09,252 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:25:09,577 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:25:09,845 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:25:10,113 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:25:10,331 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:25:11,102 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:25:11,361 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:25:11,662 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:25:11,925 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:25:12,164 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:25:13,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:25:13,232 INFO L93 Difference]: Finished difference Result 646 states and 735 transitions. [2020-07-07 12:25:13,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 12:25:13,233 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 189 [2020-07-07 12:25:13,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:25:13,236 INFO L225 Difference]: With dead ends: 646 [2020-07-07 12:25:13,237 INFO L226 Difference]: Without dead ends: 410 [2020-07-07 12:25:13,238 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2020-07-07 12:25:13,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2020-07-07 12:25:13,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 352. [2020-07-07 12:25:13,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 352 states. [2020-07-07 12:25:13,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 379 transitions. [2020-07-07 12:25:13,362 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 379 transitions. Word has length 189 [2020-07-07 12:25:13,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:25:13,363 INFO L479 AbstractCegarLoop]: Abstraction has 352 states and 379 transitions. [2020-07-07 12:25:13,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-07 12:25:13,363 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 379 transitions. [2020-07-07 12:25:13,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-07-07 12:25:13,401 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:25:13,401 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] [2020-07-07 12:25:13,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:25:13,401 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:25:13,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:25:13,402 INFO L82 PathProgramCache]: Analyzing trace with hash 837162392, now seen corresponding path program 1 times [2020-07-07 12:25:13,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:25:13,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [195479191] [2020-07-07 12:25:13,403 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:25:13,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:13,667 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:25:13,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:13,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:13,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:13,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:13,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:13,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:13,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:13,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:13,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:13,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:25:13,860 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:25:13,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [195479191] [2020-07-07 12:25:13,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:25:13,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:25:13,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482811720] [2020-07-07 12:25:13,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:25:13,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:25:13,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:25:13,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:25:13,867 INFO L87 Difference]: Start difference. First operand 352 states and 379 transitions. Second operand 9 states. [2020-07-07 12:25:14,327 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:25:15,703 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:25:15,932 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:25:16,183 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:25:16,415 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:25:16,649 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:25:16,872 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:25:17,094 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:25:17,449 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:25:18,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:25:18,483 INFO L93 Difference]: Finished difference Result 890 states and 1026 transitions. [2020-07-07 12:25:18,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-07 12:25:18,484 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 189 [2020-07-07 12:25:18,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:25:18,491 INFO L225 Difference]: With dead ends: 890 [2020-07-07 12:25:18,491 INFO L226 Difference]: Without dead ends: 648 [2020-07-07 12:25:18,494 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-07-07 12:25:18,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2020-07-07 12:25:18,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 557. [2020-07-07 12:25:18,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2020-07-07 12:25:18,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 606 transitions. [2020-07-07 12:25:18,743 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 606 transitions. Word has length 189 [2020-07-07 12:25:18,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:25:18,744 INFO L479 AbstractCegarLoop]: Abstraction has 557 states and 606 transitions. [2020-07-07 12:25:18,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:25:18,744 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 606 transitions. [2020-07-07 12:25:18,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-07-07 12:25:18,747 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:25:18,747 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] [2020-07-07 12:25:18,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 12:25:18,748 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:25:18,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:25:18,748 INFO L82 PathProgramCache]: Analyzing trace with hash -980824808, now seen corresponding path program 1 times [2020-07-07 12:25:18,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:25:18,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [951747587] [2020-07-07 12:25:18,753 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:25:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:19,066 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:25:19,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:19,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:19,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:19,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:19,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:19,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:19,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:19,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:19,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:25:19,284 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:25:19,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [951747587] [2020-07-07 12:25:19,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:25:19,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 12:25:19,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975168962] [2020-07-07 12:25:19,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 12:25:19,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:25:19,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 12:25:19,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-07 12:25:19,288 INFO L87 Difference]: Start difference. First operand 557 states and 606 transitions. Second operand 10 states. [2020-07-07 12:25:19,727 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:25:21,181 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:25:21,416 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:25:21,644 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:25:21,886 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:25:22,144 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:25:22,440 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:25:22,683 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:25:22,967 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:25:23,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:25:23,820 INFO L93 Difference]: Finished difference Result 714 states and 828 transitions. [2020-07-07 12:25:23,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-07 12:25:23,820 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-07-07 12:25:23,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:25:23,826 INFO L225 Difference]: With dead ends: 714 [2020-07-07 12:25:23,826 INFO L226 Difference]: Without dead ends: 711 [2020-07-07 12:25:23,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-07-07 12:25:23,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2020-07-07 12:25:23,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 557. [2020-07-07 12:25:23,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2020-07-07 12:25:23,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 605 transitions. [2020-07-07 12:25:23,992 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 605 transitions. Word has length 194 [2020-07-07 12:25:23,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:25:23,992 INFO L479 AbstractCegarLoop]: Abstraction has 557 states and 605 transitions. [2020-07-07 12:25:23,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 12:25:23,993 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 605 transitions. [2020-07-07 12:25:23,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-07-07 12:25:23,996 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:25:23,996 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] [2020-07-07 12:25:23,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-07 12:25:23,996 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:25:23,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:25:23,997 INFO L82 PathProgramCache]: Analyzing trace with hash 532479923, now seen corresponding path program 1 times [2020-07-07 12:25:23,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:25:23,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1123861745] [2020-07-07 12:25:23,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:25:24,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:24,236 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:25:24,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:24,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:24,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:24,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:24,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:24,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:24,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:24,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:24,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:24,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:25:24,411 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:25:24,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1123861745] [2020-07-07 12:25:24,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:25:24,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 12:25:24,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537372744] [2020-07-07 12:25:24,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 12:25:24,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:25:24,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 12:25:24,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-07 12:25:24,414 INFO L87 Difference]: Start difference. First operand 557 states and 605 transitions. Second operand 10 states. [2020-07-07 12:25:25,481 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:25:25,715 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 12:25:25,954 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-07 12:25:26,188 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:25:26,421 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:25:26,639 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:25:27,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:25:27,784 INFO L93 Difference]: Finished difference Result 1168 states and 1344 transitions. [2020-07-07 12:25:27,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 12:25:27,785 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 195 [2020-07-07 12:25:27,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:25:27,792 INFO L225 Difference]: With dead ends: 1168 [2020-07-07 12:25:27,792 INFO L226 Difference]: Without dead ends: 721 [2020-07-07 12:25:27,794 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 [2020-07-07 12:25:27,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2020-07-07 12:25:27,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 573. [2020-07-07 12:25:27,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2020-07-07 12:25:27,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 621 transitions. [2020-07-07 12:25:27,984 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 621 transitions. Word has length 195 [2020-07-07 12:25:27,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:25:27,985 INFO L479 AbstractCegarLoop]: Abstraction has 573 states and 621 transitions. [2020-07-07 12:25:27,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 12:25:27,985 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 621 transitions. [2020-07-07 12:25:27,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-07-07 12:25:27,988 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:25:27,988 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] [2020-07-07 12:25:27,988 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-07 12:25:27,988 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:25:27,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:25:27,989 INFO L82 PathProgramCache]: Analyzing trace with hash -2081684234, now seen corresponding path program 1 times [2020-07-07 12:25:27,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:25:27,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1722322348] [2020-07-07 12:25:27,989 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:25:28,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:28,242 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:25:28,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:28,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:28,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:28,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:28,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:28,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:28,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:28,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:28,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:28,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:25:28,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:25:28,412 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:25:28,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1722322348] [2020-07-07 12:25:28,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:25:28,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-07 12:25:28,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30734265] [2020-07-07 12:25:28,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-07 12:25:28,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:25:28,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-07 12:25:28,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-07 12:25:28,414 INFO L87 Difference]: Start difference. First operand 573 states and 621 transitions. Second operand 7 states. [2020-07-07 12:25:28,833 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:25:29,411 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:25:31,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:25:31,393 INFO L93 Difference]: Finished difference Result 1627 states and 1938 transitions. [2020-07-07 12:25:31,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-07 12:25:31,394 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 195 [2020-07-07 12:25:31,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:25:31,400 INFO L225 Difference]: With dead ends: 1627 [2020-07-07 12:25:31,400 INFO L226 Difference]: Without dead ends: 1164 [2020-07-07 12:25:31,402 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-07-07 12:25:31,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1164 states. [2020-07-07 12:25:31,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1164 to 991. [2020-07-07 12:25:31,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 991 states. [2020-07-07 12:25:31,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1113 transitions. [2020-07-07 12:25:31,712 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1113 transitions. Word has length 195 [2020-07-07 12:25:31,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:25:31,712 INFO L479 AbstractCegarLoop]: Abstraction has 991 states and 1113 transitions. [2020-07-07 12:25:31,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-07 12:25:31,713 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1113 transitions. [2020-07-07 12:25:31,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-07-07 12:25:31,716 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:25:31,716 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] [2020-07-07 12:25:31,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-07 12:25:31,717 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:25:31,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:25:31,717 INFO L82 PathProgramCache]: Analyzing trace with hash -727099307, now seen corresponding path program 1 times [2020-07-07 12:25:31,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:25:31,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [343669672] [2020-07-07 12:25:31,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:25:31,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:25:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:25:32,023 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:25:32,023 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:25:32,023 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:25:32,024 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-07 12:25:32,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:25:32 BoogieIcfgContainer [2020-07-07 12:25:32,050 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:25:32,052 INFO L168 Benchmark]: Toolchain (without parser) took 38260.18 ms. Allocated memory was 142.6 MB in the beginning and 778.0 MB in the end (delta: 635.4 MB). Free memory was 99.4 MB in the beginning and 339.6 MB in the end (delta: -240.2 MB). Peak memory consumption was 395.3 MB. Max. memory is 7.1 GB. [2020-07-07 12:25:32,052 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 142.6 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-07 12:25:32,053 INFO L168 Benchmark]: CACSL2BoogieTranslator took 662.17 ms. Allocated memory was 142.6 MB in the beginning and 200.3 MB in the end (delta: 57.7 MB). Free memory was 99.2 MB in the beginning and 168.8 MB in the end (delta: -69.6 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-07-07 12:25:32,054 INFO L168 Benchmark]: Boogie Preprocessor took 85.39 ms. Allocated memory is still 200.3 MB. Free memory was 168.8 MB in the beginning and 164.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-07-07 12:25:32,054 INFO L168 Benchmark]: RCFGBuilder took 1243.11 ms. Allocated memory was 200.3 MB in the beginning and 228.6 MB in the end (delta: 28.3 MB). Free memory was 164.4 MB in the beginning and 174.5 MB in the end (delta: -10.0 MB). Peak memory consumption was 88.8 MB. Max. memory is 7.1 GB. [2020-07-07 12:25:32,055 INFO L168 Benchmark]: TraceAbstraction took 36265.21 ms. Allocated memory was 228.6 MB in the beginning and 778.0 MB in the end (delta: 549.5 MB). Free memory was 174.5 MB in the beginning and 339.6 MB in the end (delta: -165.1 MB). Peak memory consumption was 384.3 MB. Max. memory is 7.1 GB. [2020-07-07 12:25:32,058 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 142.6 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 662.17 ms. Allocated memory was 142.6 MB in the beginning and 200.3 MB in the end (delta: 57.7 MB). Free memory was 99.2 MB in the beginning and 168.8 MB in the end (delta: -69.6 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.39 ms. Allocated memory is still 200.3 MB. Free memory was 168.8 MB in the beginning and 164.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1243.11 ms. Allocated memory was 200.3 MB in the beginning and 228.6 MB in the end (delta: 28.3 MB). Free memory was 164.4 MB in the beginning and 174.5 MB in the end (delta: -10.0 MB). Peak memory consumption was 88.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 36265.21 ms. Allocated memory was 228.6 MB in the beginning and 778.0 MB in the end (delta: 549.5 MB). Free memory was 174.5 MB in the beginning and 339.6 MB in the end (delta: -165.1 MB). Peak memory consumption was 384.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 543]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L588] int pumpRunning = 0; [L589] int systemActive = 1; [L832] int waterLevel = 1; [L833] int methaneLevelCritical = 0; [L487] int retValue_acc ; [L488] int tmp ; [L492] FCALL select_helpers() [L493] FCALL select_features() [L494] CALL, EXPR valid_product() [L574] int retValue_acc ; [L577] retValue_acc = 1 [L578] return (retValue_acc); [L494] RET, EXPR valid_product() [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) [L498] FCALL setup() [L499] CALL runTest() [L478] CALL test() [L767] int splverifierCounter ; [L768] int tmp ; [L769] int tmp___0 ; [L770] int tmp___1 ; [L771] int tmp___2 ; [L774] splverifierCounter = 0 [L776] COND TRUE 1 [L778] COND TRUE splverifierCounter < 4 [L784] tmp = __VERIFIER_nondet_int() [L786] COND TRUE \read(tmp) [L788] CALL waterRise() [L850] COND TRUE waterLevel < 2 [L851] waterLevel = waterLevel + 1 [L788] RET waterRise() [L794] tmp___0 = __VERIFIER_nondet_int() [L796] COND TRUE \read(tmp___0) [L798] CALL changeMethaneLevel() [L862] COND FALSE !(\read(methaneLevelCritical)) [L865] methaneLevelCritical = 1 [L798] RET changeMethaneLevel() [L804] tmp___2 = __VERIFIER_nondet_int() [L806] COND TRUE \read(tmp___2) [L819] CALL timeShift() [L595] COND FALSE !(\read(pumpRunning)) [L602] COND TRUE \read(systemActive) [L604] CALL processEnvironment() [L650] int tmp ; [L653] COND FALSE !(\read(pumpRunning)) [L668] CALL processEnvironment__wrappee__highWaterSensor() [L624] int tmp ; [L627] COND TRUE ! pumpRunning [L629] CALL, EXPR isHighWaterLevel() [L747] int retValue_acc ; [L748] int tmp ; [L749] int tmp___0 ; [L753] CALL, EXPR isHighWaterSensorDry() [L912] int retValue_acc ; [L915] COND FALSE !(waterLevel < 2) [L919] retValue_acc = 0 [L920] return (retValue_acc); [L753] RET, EXPR isHighWaterSensorDry() [L753] tmp = isHighWaterSensorDry() [L755] COND FALSE !(\read(tmp)) [L758] tmp___0 = 1 [L760] retValue_acc = tmp___0 [L761] return (retValue_acc); [L629] RET, EXPR isHighWaterLevel() [L629] tmp = isHighWaterLevel() [L631] COND TRUE \read(tmp) [L633] CALL activatePump() [L678] pumpRunning = 1 [L633] RET activatePump() [L668] RET processEnvironment__wrappee__highWaterSensor() [L604] RET processEnvironment() [L610] CALL __utac_acc__Specification1_spec__1() [L514] int tmp ; [L515] int tmp___0 ; [L519] CALL, EXPR isMethaneLevelCritical() [L871] int retValue_acc ; [L874] retValue_acc = methaneLevelCritical [L875] return (retValue_acc); [L519] RET, EXPR isMethaneLevelCritical() [L519] tmp = isMethaneLevelCritical() [L521] COND TRUE \read(tmp) [L523] CALL, EXPR isPumpRunning() [L702] int retValue_acc ; [L705] retValue_acc = pumpRunning [L706] return (retValue_acc); [L523] RET, EXPR isPumpRunning() [L523] tmp___0 = isPumpRunning() [L525] COND TRUE \read(tmp___0) [L527] CALL __automaton_fail() [L543] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 618 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 36.1s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 29.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2129 SDtfs, 3662 SDslu, 3792 SDs, 0 SdLazy, 7301 SolverSat, 1120 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 344 GetRequests, 229 SyntacticMatches, 3 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 12.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=991occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 792 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...