/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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_spec4_product15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:02:17,546 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:02:17,550 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:02:17,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:02:17,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:02:17,592 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:02:17,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:02:17,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:02:17,599 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:02:17,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:02:17,602 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:02:17,604 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:02:17,604 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:02:17,605 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:02:17,607 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:02:17,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:02:17,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:02:17,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:02:17,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:02:17,615 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:02:17,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:02:17,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:02:17,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:02:17,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:02:17,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:02:17,625 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:02:17,625 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:02:17,626 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:02:17,627 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:02:17,628 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:02:17,629 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:02:17,630 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:02:17,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:02:17,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:02:17,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:02:17,637 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:02:17,638 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:02:17,638 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:02:17,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:02:17,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:02:17,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:02:17,651 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:02:17,673 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:02:17,673 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:02:17,675 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:02:17,676 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:02:17,676 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:02:17,676 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:02:17,676 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:02:17,676 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:02:17,677 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:02:17,677 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:02:17,677 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:02:17,677 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:02:17,677 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:02:17,678 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:02:17,678 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:02:17,678 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:02:17,678 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:02:17,679 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:02:17,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:02:17,679 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:02:17,679 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:02:17,680 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:02:17,680 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:02:18,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:02:18,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:02:18,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:02:18,132 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:02:18,132 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:02:18,133 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product15.cil.c [2020-10-23 20:02:18,239 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9ff90e97/69997e98492e4aceaf673cb2b3aa6b28/FLAGa13c5ccfe [2020-10-23 20:02:19,168 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:02:19,169 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product15.cil.c [2020-10-23 20:02:19,191 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9ff90e97/69997e98492e4aceaf673cb2b3aa6b28/FLAGa13c5ccfe [2020-10-23 20:02:19,382 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9ff90e97/69997e98492e4aceaf673cb2b3aa6b28 [2020-10-23 20:02:19,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:02:19,396 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:02:19,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:02:19,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:02:19,408 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:02:19,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:02:19" (1/1) ... [2020-10-23 20:02:19,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78bf5773 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:02:19, skipping insertion in model container [2020-10-23 20:02:19,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:02:19" (1/1) ... [2020-10-23 20:02:19,427 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:02:19,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:02:19,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:02:19,950 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:02:20,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:02:20,167 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:02:20,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:02:20 WrapperNode [2020-10-23 20:02:20,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:02:20,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:02:20,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:02:20,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:02:20,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:02:20" (1/1) ... [2020-10-23 20:02:20,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:02:20" (1/1) ... [2020-10-23 20:02:20,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:02:20" (1/1) ... [2020-10-23 20:02:20,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:02:20" (1/1) ... [2020-10-23 20:02:20,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:02:20" (1/1) ... [2020-10-23 20:02:20,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:02:20" (1/1) ... [2020-10-23 20:02:20,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:02:20" (1/1) ... [2020-10-23 20:02:20,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:02:20,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:02:20,354 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:02:20,374 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:02:20,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:02:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:02:20,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:02:20,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:02:20,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:02:20,474 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:02:20,474 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:02:20,474 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:02:20,475 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:02:20,475 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:02:20,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:02:20,475 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:02:20,475 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:02:20,476 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 20:02:20,476 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:02:20,476 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-10-23 20:02:20,476 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:02:20,476 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:02:20,477 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:02:20,477 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:02:20,477 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:02:20,477 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 20:02:20,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:02:20,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:02:20,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:02:20,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:02:20,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:02:20,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:02:20,483 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:02:20,483 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:02:20,484 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:02:20,484 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:02:20,484 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:02:20,484 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:02:20,485 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:02:20,485 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:02:20,485 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:02:20,485 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:02:20,485 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:02:20,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:02:20,486 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:02:20,486 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:02:20,486 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:02:20,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:02:20,487 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:02:20,487 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:02:20,487 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:02:20,487 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:02:20,487 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:02:20,488 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:02:20,488 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:02:20,488 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:02:20,488 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:02:20,488 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 20:02:20,488 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:02:20,489 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:02:20,489 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:02:20,489 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:02:20,489 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:02:20,489 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:02:20,489 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:02:20,490 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:02:20,490 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:02:20,490 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:02:20,490 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:02:20,490 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:02:20,491 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 20:02:20,491 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:02:20,491 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-10-23 20:02:20,491 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:02:20,491 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:02:20,491 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:02:20,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:02:20,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:02:20,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:02:20,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:02:20,492 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:02:20,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:02:20,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:02:20,493 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:02:20,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:02:20,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:02:20,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:02:20,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:02:20,494 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:02:20,494 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:02:20,494 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:02:20,494 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:02:20,494 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:02:20,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:02:20,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:02:20,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:02:22,514 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:02:22,515 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:02:22,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:02:22 BoogieIcfgContainer [2020-10-23 20:02:22,520 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:02:22,537 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:02:22,537 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:02:22,545 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:02:22,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:02:19" (1/3) ... [2020-10-23 20:02:22,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f950fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:02:22, skipping insertion in model container [2020-10-23 20:02:22,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:02:20" (2/3) ... [2020-10-23 20:02:22,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f950fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:02:22, skipping insertion in model container [2020-10-23 20:02:22,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:02:22" (3/3) ... [2020-10-23 20:02:22,552 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product15.cil.c [2020-10-23 20:02:22,571 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:02:22,582 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:02:22,603 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:02:22,648 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:02:22,649 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:02:22,649 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:02:22,649 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:02:22,649 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:02:22,650 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:02:22,650 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:02:22,650 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:02:22,680 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states. [2020-10-23 20:02:22,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 20:02:22,705 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:02:22,706 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] [2020-10-23 20:02:22,707 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:02:22,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:02:22,720 INFO L82 PathProgramCache]: Analyzing trace with hash 943502383, now seen corresponding path program 1 times [2020-10-23 20:02:22,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:02:22,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [725851216] [2020-10-23 20:02:22,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:02:22,837 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:02:23,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:23,782 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:02:23,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:02:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:23,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:02:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:23,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:02:23,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:23,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:02:23,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:23,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:02:23,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:23,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:02:23,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:23,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:02:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:23,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:02:23,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [725851216] [2020-10-23 20:02:23,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:02:23,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 20:02:23,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661278646] [2020-10-23 20:02:23,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 20:02:23,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:02:23,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 20:02:23,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:02:23,997 INFO L87 Difference]: Start difference. First operand 294 states. Second operand 3 states. [2020-10-23 20:02:25,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:02:25,911 INFO L93 Difference]: Finished difference Result 425 states and 509 transitions. [2020-10-23 20:02:25,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 20:02:25,915 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 20:02:25,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:02:25,940 INFO L225 Difference]: With dead ends: 425 [2020-10-23 20:02:25,941 INFO L226 Difference]: Without dead ends: 271 [2020-10-23 20:02:25,948 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:02:25,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-10-23 20:02:26,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 230. [2020-10-23 20:02:26,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-10-23 20:02:26,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 248 transitions. [2020-10-23 20:02:26,141 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 248 transitions. Word has length 148 [2020-10-23 20:02:26,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:02:26,143 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 248 transitions. [2020-10-23 20:02:26,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 20:02:26,143 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 248 transitions. [2020-10-23 20:02:26,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 20:02:26,149 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:02:26,150 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] [2020-10-23 20:02:26,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:02:26,150 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:02:26,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:02:26,151 INFO L82 PathProgramCache]: Analyzing trace with hash 122205102, now seen corresponding path program 1 times [2020-10-23 20:02:26,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:02:26,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1963097770] [2020-10-23 20:02:26,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:02:26,158 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:02:26,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:26,795 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:02:26,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:02:26,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:26,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:02:26,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:26,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:02:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:26,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:02:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:26,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:02:26,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:26,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:02:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:26,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:02:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:26,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:02:26,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1963097770] [2020-10-23 20:02:26,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:02:26,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:02:26,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998947343] [2020-10-23 20:02:26,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:02:26,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:02:26,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:02:26,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:02:26,988 INFO L87 Difference]: Start difference. First operand 230 states and 248 transitions. Second operand 4 states. [2020-10-23 20:02:27,981 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:02:29,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:02:29,145 INFO L93 Difference]: Finished difference Result 333 states and 372 transitions. [2020-10-23 20:02:29,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 20:02:29,146 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 20:02:29,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:02:29,160 INFO L225 Difference]: With dead ends: 333 [2020-10-23 20:02:29,160 INFO L226 Difference]: Without dead ends: 254 [2020-10-23 20:02:29,166 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:02:29,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-10-23 20:02:29,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 220. [2020-10-23 20:02:29,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-10-23 20:02:29,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 235 transitions. [2020-10-23 20:02:29,300 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 235 transitions. Word has length 149 [2020-10-23 20:02:29,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:02:29,301 INFO L481 AbstractCegarLoop]: Abstraction has 220 states and 235 transitions. [2020-10-23 20:02:29,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:02:29,301 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 235 transitions. [2020-10-23 20:02:29,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-23 20:02:29,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:02:29,305 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] [2020-10-23 20:02:29,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:02:29,306 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:02:29,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:02:29,307 INFO L82 PathProgramCache]: Analyzing trace with hash -2018046969, now seen corresponding path program 1 times [2020-10-23 20:02:29,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:02:29,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [169996787] [2020-10-23 20:02:29,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:02:29,313 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:02:29,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:29,848 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:02:29,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:02:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:29,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:02:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:29,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:02:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:29,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:02:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:29,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:02:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:29,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:02:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:29,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 20:02:29,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:30,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:02:30,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [169996787] [2020-10-23 20:02:30,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:02:30,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 20:02:30,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677219917] [2020-10-23 20:02:30,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 20:02:30,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:02:30,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 20:02:30,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 20:02:30,066 INFO L87 Difference]: Start difference. First operand 220 states and 235 transitions. Second operand 9 states. [2020-10-23 20:02:30,803 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:02:31,318 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:02:31,715 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:02:32,119 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:02:32,500 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:02:32,893 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:02:34,173 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:02:36,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:02:36,358 INFO L93 Difference]: Finished difference Result 558 states and 641 transitions. [2020-10-23 20:02:36,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:02:36,359 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-10-23 20:02:36,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:02:36,365 INFO L225 Difference]: With dead ends: 558 [2020-10-23 20:02:36,366 INFO L226 Difference]: Without dead ends: 453 [2020-10-23 20:02:36,368 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-23 20:02:36,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2020-10-23 20:02:36,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 388. [2020-10-23 20:02:36,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 388 states. [2020-10-23 20:02:36,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 432 transitions. [2020-10-23 20:02:36,584 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 432 transitions. Word has length 158 [2020-10-23 20:02:36,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:02:36,585 INFO L481 AbstractCegarLoop]: Abstraction has 388 states and 432 transitions. [2020-10-23 20:02:36,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 20:02:36,585 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 432 transitions. [2020-10-23 20:02:36,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-23 20:02:36,589 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:02:36,590 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:02:36,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:02:36,590 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:02:36,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:02:36,591 INFO L82 PathProgramCache]: Analyzing trace with hash -367360626, now seen corresponding path program 1 times [2020-10-23 20:02:36,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:02:36,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1809539371] [2020-10-23 20:02:36,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:02:36,597 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:02:36,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:37,139 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:02:37,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:02:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:37,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:02:37,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:37,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:02:37,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:37,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:02:37,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:37,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:02:37,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:37,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 20:02:37,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:37,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:02:37,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:37,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-23 20:02:37,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:37,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 20:02:37,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:37,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:02:37,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1809539371] [2020-10-23 20:02:37,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:02:37,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:02:37,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465763376] [2020-10-23 20:02:37,431 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:02:37,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:02:37,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:02:37,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:02:37,435 INFO L87 Difference]: Start difference. First operand 388 states and 432 transitions. Second operand 14 states. [2020-10-23 20:02:38,458 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:02:39,102 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:02:39,549 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:02:39,992 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:02:40,448 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:02:40,909 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:02:41,993 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:02:43,712 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:02:44,213 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:02:44,797 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:02:45,287 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:02:45,735 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:02:46,169 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:02:46,608 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:02:47,046 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:02:47,456 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:02:47,972 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:02:48,617 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:02:49,087 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:02:49,599 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:02:51,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:02:51,653 INFO L93 Difference]: Finished difference Result 1415 states and 1808 transitions. [2020-10-23 20:02:51,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-23 20:02:51,655 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 166 [2020-10-23 20:02:51,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:02:51,677 INFO L225 Difference]: With dead ends: 1415 [2020-10-23 20:02:51,677 INFO L226 Difference]: Without dead ends: 1142 [2020-10-23 20:02:51,685 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-10-23 20:02:51,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2020-10-23 20:02:52,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 869. [2020-10-23 20:02:52,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 869 states. [2020-10-23 20:02:52,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1005 transitions. [2020-10-23 20:02:52,310 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1005 transitions. Word has length 166 [2020-10-23 20:02:52,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:02:52,314 INFO L481 AbstractCegarLoop]: Abstraction has 869 states and 1005 transitions. [2020-10-23 20:02:52,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:02:52,314 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1005 transitions. [2020-10-23 20:02:52,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-23 20:02:52,323 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:02:52,324 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] [2020-10-23 20:02:52,324 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:02:52,325 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:02:52,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:02:52,326 INFO L82 PathProgramCache]: Analyzing trace with hash 468652510, now seen corresponding path program 1 times [2020-10-23 20:02:52,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:02:52,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [683200110] [2020-10-23 20:02:52,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:02:52,335 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:02:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:52,851 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:02:52,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:02:52,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:52,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:02:52,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:52,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:02:52,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:52,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:02:52,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:52,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:02:52,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:52,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-23 20:02:52,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:52,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:02:52,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:52,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 20:02:52,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:52,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:02:52,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:52,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 20:02:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:52,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-23 20:02:52,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:02:53,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:02:53,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [683200110] [2020-10-23 20:02:53,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:02:53,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:02:53,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151146386] [2020-10-23 20:02:53,032 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:02:53,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:02:53,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:02:53,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:02:53,043 INFO L87 Difference]: Start difference. First operand 869 states and 1005 transitions. Second operand 6 states. [2020-10-23 20:02:53,927 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:02:55,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:02:55,112 INFO L93 Difference]: Finished difference Result 1432 states and 1708 transitions. [2020-10-23 20:02:55,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 20:02:55,113 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 176 [2020-10-23 20:02:55,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:02:55,118 INFO L225 Difference]: With dead ends: 1432 [2020-10-23 20:02:55,119 INFO L226 Difference]: Without dead ends: 678 [2020-10-23 20:02:55,123 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-23 20:02:55,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2020-10-23 20:02:55,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 644. [2020-10-23 20:02:55,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 644 states. [2020-10-23 20:02:55,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 703 transitions. [2020-10-23 20:02:55,455 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 703 transitions. Word has length 176 [2020-10-23 20:02:55,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:02:55,456 INFO L481 AbstractCegarLoop]: Abstraction has 644 states and 703 transitions. [2020-10-23 20:02:55,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:02:55,456 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 703 transitions. [2020-10-23 20:02:55,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-23 20:02:55,463 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:02:55,464 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:02:55,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:02:55,464 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:02:55,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:02:55,468 INFO L82 PathProgramCache]: Analyzing trace with hash -33639949, now seen corresponding path program 1 times [2020-10-23 20:02:55,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:02:55,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [366128967] [2020-10-23 20:02:55,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:02:55,672 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:02:56,003 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:02:56,275 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:02:56,570 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:02:56,863 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:02:57,166 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:02:57,442 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:02:57,721 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:02:58,011 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:02:58,306 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:02:58,608 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:02:58,908 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:02:59,205 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:02:59,489 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:03:02,760 WARN L193 SmtUtils]: Spent 862.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:03:02,788 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:05,617 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:03:05,640 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:08,288 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:03:08,296 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:11,020 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:03:11,029 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:13,839 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:03:16,489 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:03:16,496 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:19,097 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:03:19,103 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:21,790 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:03:21,797 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:21,805 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:03:22,221 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:03:22,671 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:03:23,101 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:03:23,519 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:03:23,946 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:03:24,345 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:03:24,728 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:03:25,160 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:03:25,163 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:03:27,792 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:03:27,799 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:29,569 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:03:29,574 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:32,207 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 166 [2020-10-23 20:03:32,212 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:34,877 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:03:37,549 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:03:40,140 WARN L193 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:03:40,145 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:42,749 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:03:42,754 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:45,480 WARN L193 SmtUtils]: Spent 621.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:03:45,487 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:45,496 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:03:48,206 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:03:48,213 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:50,862 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:03:50,867 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:53,498 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:03:53,504 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:55,341 WARN L193 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:03:55,345 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:57,982 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:03:57,988 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:00,560 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:04:00,564 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:02,111 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:04:02,118 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:04,699 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:04:04,704 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:04,715 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:04:07,257 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:04:07,262 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:08,745 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:04:08,748 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:09,964 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:04:12,567 WARN L193 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:04:12,572 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:15,130 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:04:15,134 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:17,661 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:04:17,665 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:20,268 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 166 [2020-10-23 20:04:22,766 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:04:22,773 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:22,776 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:04:25,435 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:04:28,033 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:04:28,038 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:29,283 WARN L193 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:04:29,288 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:31,903 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:04:34,494 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:04:37,046 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:04:37,055 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:39,626 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:04:39,630 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:42,254 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-23 20:04:42,260 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:04:42,704 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:04:43,128 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:04:43,502 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:04:43,865 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:04:44,250 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:04:44,650 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:04:45,068 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:04:45,482 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:04:45,485 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:04:45,871 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:04:46,231 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:04:46,586 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:04:46,946 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:04:47,315 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:04:47,668 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:04:48,043 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:04:48,411 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:04:48,413 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:04:48,777 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:04:49,146 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:04:49,523 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:04:49,883 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:04:50,247 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:04:50,623 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:04:50,980 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:04:51,367 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:04:51,370 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:04:51,733 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:04:52,124 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:04:52,520 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:04:52,891 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:04:53,256 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:04:53,629 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:04:53,996 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:04:54,376 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:04:54,378 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:04:57,012 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:04:57,017 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:59,637 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:05:02,215 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:05:02,221 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:04,839 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:05:04,842 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:07,520 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:05:07,524 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:10,101 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:05:10,105 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:11,486 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:05:11,490 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:14,070 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:05:14,074 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:14,077 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:05:16,646 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:05:16,649 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:19,216 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:05:19,220 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:21,856 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:05:21,860 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:24,031 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:05:24,035 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:26,613 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:05:26,617 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:29,237 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:05:29,241 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:31,814 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:05:31,818 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:34,188 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:05:34,192 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:34,196 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:05:35,904 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:05:35,907 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:38,491 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:05:38,494 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:41,141 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:05:41,144 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:42,930 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:05:45,514 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:05:45,517 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:48,102 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:05:48,106 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:50,691 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:05:50,695 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:53,360 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:05:53,364 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:53,367 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:05:53,780 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:05:54,184 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:05:54,600 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:05:55,010 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:05:55,424 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:05:55,824 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:05:56,228 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:05:56,629 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:05:56,632 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:05:57,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:05:57,061 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:05:57,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:05:57,381 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:05:57,622 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:05:57,622 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:05:57,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:05:57,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:05:57 BoogieIcfgContainer [2020-10-23 20:05:57,669 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:05:57,674 INFO L168 Benchmark]: Toolchain (without parser) took 218280.34 ms. Allocated memory was 125.8 MB in the beginning and 549.5 MB in the end (delta: 423.6 MB). Free memory was 101.8 MB in the beginning and 291.1 MB in the end (delta: -189.3 MB). Peak memory consumption was 234.7 MB. Max. memory is 8.0 GB. [2020-10-23 20:05:57,675 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 125.8 MB. Free memory is still 102.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:05:57,678 INFO L168 Benchmark]: CACSL2BoogieTranslator took 769.97 ms. Allocated memory is still 125.8 MB. Free memory was 101.1 MB in the beginning and 80.9 MB in the end (delta: 20.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:05:57,683 INFO L168 Benchmark]: Boogie Preprocessor took 181.71 ms. Allocated memory is still 125.8 MB. Free memory was 80.7 MB in the beginning and 77.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:05:57,683 INFO L168 Benchmark]: RCFGBuilder took 2166.62 ms. Allocated memory was 125.8 MB in the beginning and 152.0 MB in the end (delta: 26.2 MB). Free memory was 77.0 MB in the beginning and 76.9 MB in the end (delta: 133.4 kB). Peak memory consumption was 30.5 MB. Max. memory is 8.0 GB. [2020-10-23 20:05:57,684 INFO L168 Benchmark]: TraceAbstraction took 215132.24 ms. Allocated memory was 152.0 MB in the beginning and 549.5 MB in the end (delta: 397.4 MB). Free memory was 131.5 MB in the beginning and 291.1 MB in the end (delta: -159.6 MB). Peak memory consumption was 237.3 MB. Max. memory is 8.0 GB. [2020-10-23 20:05:57,690 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 125.8 MB. Free memory is still 102.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 769.97 ms. Allocated memory is still 125.8 MB. Free memory was 101.1 MB in the beginning and 80.9 MB in the end (delta: 20.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 181.71 ms. Allocated memory is still 125.8 MB. Free memory was 80.7 MB in the beginning and 77.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2166.62 ms. Allocated memory was 125.8 MB in the beginning and 152.0 MB in the end (delta: 26.2 MB). Free memory was 77.0 MB in the beginning and 76.9 MB in the end (delta: 133.4 kB). Peak memory consumption was 30.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 215132.24 ms. Allocated memory was 152.0 MB in the beginning and 549.5 MB in the end (delta: 397.4 MB). Free memory was 131.5 MB in the beginning and 291.1 MB in the end (delta: -159.6 MB). Peak memory consumption was 237.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L168] int pumpRunning = 0; [L169] int systemActive = 1; [L503] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L701] int waterLevel = 1; [L702] int methaneLevelCritical = 0; [L781] int cleanupTimeShifts = 4; [L854] int retValue_acc ; [L855] int tmp ; [L859] FCALL select_helpers() [L860] FCALL select_features() [L861] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L861] RET, EXPR valid_product() [L861] tmp = valid_product() [L863] COND TRUE \read(tmp) [L865] FCALL setup() [L866] CALL runTest() [L848] CALL test() [L95] int splverifierCounter ; [L96] int tmp ; [L97] int tmp___0 ; [L98] int tmp___1 ; [L99] int tmp___2 ; [L102] splverifierCounter = 0 [L104] COND TRUE 1 [L106] COND TRUE splverifierCounter < 4 [L112] tmp = __VERIFIER_nondet_int() [L114] COND TRUE \read(tmp) [L116] CALL waterRise() [L719] COND TRUE waterLevel < 2 [L720] waterLevel = waterLevel + 1 [L116] RET waterRise() [L122] tmp___0 = __VERIFIER_nondet_int() [L124] COND FALSE !(\read(tmp___0)) [L132] tmp___2 = __VERIFIER_nondet_int() [L134] COND FALSE !(\read(tmp___2)) [L138] tmp___1 = __VERIFIER_nondet_int() [L140] COND TRUE \read(tmp___1) [L142] CALL stopSystem() [L322] COND FALSE !(\read(pumpRunning)) [L329] systemActive = 0 [L142] RET stopSystem() [L149] CALL timeShift() [L176] COND FALSE !(\read(pumpRunning)) [L183] COND FALSE !(\read(systemActive)) [L191] CALL __utac_acc__Specification4_spec__1() [L878] int tmp ; [L879] int tmp___0 ; [L883] CALL, EXPR getWaterLevel() [L772] int retValue_acc ; [L775] retValue_acc = waterLevel [L776] return (retValue_acc); [L883] RET, EXPR getWaterLevel() [L883] tmp = getWaterLevel() [L885] COND FALSE !(tmp == 0) [L191] RET __utac_acc__Specification4_spec__1() [L149] RET timeShift() [L104] COND TRUE 1 [L106] COND TRUE splverifierCounter < 4 [L112] tmp = __VERIFIER_nondet_int() [L114] COND TRUE \read(tmp) [L116] CALL waterRise() [L719] COND TRUE waterLevel < 2 [L720] waterLevel = waterLevel + 1 [L116] RET waterRise() [L122] tmp___0 = __VERIFIER_nondet_int() [L124] COND FALSE !(\read(tmp___0)) [L132] tmp___2 = __VERIFIER_nondet_int() [L134] COND TRUE \read(tmp___2) [L149] CALL timeShift() [L176] COND FALSE !(\read(pumpRunning)) [L183] COND FALSE !(\read(systemActive)) [L191] CALL __utac_acc__Specification4_spec__1() [L878] int tmp ; [L879] int tmp___0 ; [L883] CALL, EXPR getWaterLevel() [L772] int retValue_acc ; [L775] retValue_acc = waterLevel [L776] return (retValue_acc); [L883] RET, EXPR getWaterLevel() [L883] tmp = getWaterLevel() [L885] COND TRUE tmp == 0 [L887] CALL, EXPR isPumpRunning() [L274] int retValue_acc ; [L277] retValue_acc = pumpRunning [L278] return (retValue_acc); [L887] RET, EXPR isPumpRunning() [L887] tmp___0 = isPumpRunning() [L889] COND TRUE \read(tmp___0) [L891] CALL __automaton_fail() [L84] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product15.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 612 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 214.9s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 26.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1020 SDtfs, 1679 SDslu, 1925 SDs, 0 SdLazy, 3620 SolverSat, 564 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 162 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 14.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=869occurred in iteration=4, 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, 5 MinimizatonAttempts, 447 StatesRemovedByMinimization, 5 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...