/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_product04.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:58:51,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:58:51,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:58:52,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:58:52,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:58:52,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:58:52,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:58:52,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:58:52,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:58:52,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:58:52,023 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:58:52,024 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:58:52,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:58:52,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:58:52,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:58:52,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:58:52,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:58:52,032 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:58:52,046 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:58:52,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:58:52,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:58:52,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:58:52,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:58:52,062 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:58:52,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:58:52,067 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:58:52,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:58:52,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:58:52,073 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:58:52,075 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:58:52,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:58:52,079 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:58:52,079 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:58:52,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:58:52,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:58:52,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:58:52,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:58:52,086 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:58:52,087 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:58:52,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:58:52,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:58:52,090 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 19:58:52,109 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:58:52,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:58:52,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:58:52,114 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:58:52,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:58:52,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:58:52,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:58:52,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:58:52,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:58:52,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:58:52,116 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:58:52,116 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:58:52,117 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:58:52,117 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:58:52,117 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:58:52,117 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:58:52,117 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:58:52,118 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:58:52,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:58:52,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:58:52,118 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:58:52,118 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:58:52,119 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:58:52,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:58:52,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:58:52,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:58:52,568 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:58:52,575 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:58:52,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product04.cil.c [2020-10-23 19:58:52,667 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3aadea00f/ce00fd4fa1b847e89c33841e1769130c/FLAG420eed67c [2020-10-23 19:58:53,452 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:58:53,453 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product04.cil.c [2020-10-23 19:58:53,472 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3aadea00f/ce00fd4fa1b847e89c33841e1769130c/FLAG420eed67c [2020-10-23 19:58:53,712 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3aadea00f/ce00fd4fa1b847e89c33841e1769130c [2020-10-23 19:58:53,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:58:53,725 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:58:53,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:58:53,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:58:53,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:58:53,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:58:53" (1/1) ... [2020-10-23 19:58:53,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bef2d0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:53, skipping insertion in model container [2020-10-23 19:58:53,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:58:53" (1/1) ... [2020-10-23 19:58:53,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:58:53,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:58:54,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:58:54,183 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:58:54,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:58:54,311 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:58:54,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:54 WrapperNode [2020-10-23 19:58:54,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:58:54,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:58:54,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:58:54,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:58:54,331 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:54" (1/1) ... [2020-10-23 19:58:54,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:54" (1/1) ... [2020-10-23 19:58:54,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:54" (1/1) ... [2020-10-23 19:58:54,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:54" (1/1) ... [2020-10-23 19:58:54,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:54" (1/1) ... [2020-10-23 19:58:54,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:54" (1/1) ... [2020-10-23 19:58:54,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:54" (1/1) ... [2020-10-23 19:58:54,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:58:54,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:58:54,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:58:54,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:58:54,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:58:54,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:58:54,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:58:54,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:58:54,548 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:58:54,549 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:58:54,549 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:58:54,549 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:58:54,549 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:58:54,549 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:58:54,549 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:58:54,550 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:58:54,550 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:58:54,550 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:58:54,550 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:58:54,550 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:58:54,551 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:58:54,551 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:58:54,551 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:58:54,551 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:58:54,551 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:58:54,552 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:58:54,552 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:58:54,552 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:58:54,552 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:58:54,552 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:58:54,553 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:58:54,553 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 19:58:54,553 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 19:58:54,553 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:58:54,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:58:54,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:58:54,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:58:54,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:58:54,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:58:54,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:58:54,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:58:54,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 19:58:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:58:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:58:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:58:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:58:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:58:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:58:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:58:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:58:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:58:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:58:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:58:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:58:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:58:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:58:54,558 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:58:54,558 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:58:54,558 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:58:54,558 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:58:54,558 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:58:54,559 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:58:54,559 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:58:54,559 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:58:54,559 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:58:54,559 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:58:54,559 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:58:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:58:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:58:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 19:58:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 19:58:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 19:58:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:58:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:58:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:58:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:58:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:58:54,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:58:54,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:58:54,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:58:54,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:58:54,562 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:58:54,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:58:54,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:58:54,563 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:58:54,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:58:54,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:58:54,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:58:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:58:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:58:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:58:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:58:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:58:56,225 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:58:56,225 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:58:56,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:58:56 BoogieIcfgContainer [2020-10-23 19:58:56,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:58:56,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:58:56,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:58:56,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:58:56,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:58:53" (1/3) ... [2020-10-23 19:58:56,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc6c3f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:58:56, skipping insertion in model container [2020-10-23 19:58:56,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:54" (2/3) ... [2020-10-23 19:58:56,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc6c3f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:58:56, skipping insertion in model container [2020-10-23 19:58:56,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:58:56" (3/3) ... [2020-10-23 19:58:56,238 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product04.cil.c [2020-10-23 19:58:56,251 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:58:56,257 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:58:56,271 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:58:56,296 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:58:56,296 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:58:56,297 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:58:56,297 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:58:56,297 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:58:56,297 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:58:56,297 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:58:56,297 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:58:56,319 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states. [2020-10-23 19:58:56,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 19:58:56,340 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:56,341 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 19:58:56,342 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 19:58:56,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:56,348 INFO L82 PathProgramCache]: Analyzing trace with hash -1169845471, now seen corresponding path program 1 times [2020-10-23 19:58:56,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:56,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1957963911] [2020-10-23 19:58:56,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:56,439 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:56,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:57,472 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:57,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:57,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:57,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:57,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:57,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:57,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:57,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:57,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:57,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:57,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 19:58:57,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:57,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 19:58:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:57,642 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 19:58:57,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1957963911] [2020-10-23 19:58:57,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:58:57,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 19:58:57,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367476979] [2020-10-23 19:58:57,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 19:58:57,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:58:57,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 19:58:57,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:58:57,679 INFO L87 Difference]: Start difference. First operand 263 states. Second operand 3 states. [2020-10-23 19:58:59,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:59,096 INFO L93 Difference]: Finished difference Result 382 states and 458 transitions. [2020-10-23 19:58:59,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 19:58:59,098 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 19:58:59,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:59,113 INFO L225 Difference]: With dead ends: 382 [2020-10-23 19:58:59,114 INFO L226 Difference]: Without dead ends: 249 [2020-10-23 19:58:59,118 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:58:59,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-10-23 19:58:59,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 209. [2020-10-23 19:58:59,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-10-23 19:58:59,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 223 transitions. [2020-10-23 19:58:59,267 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 223 transitions. Word has length 148 [2020-10-23 19:58:59,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:59,272 INFO L481 AbstractCegarLoop]: Abstraction has 209 states and 223 transitions. [2020-10-23 19:58:59,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 19:58:59,272 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 223 transitions. [2020-10-23 19:58:59,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 19:58:59,280 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:59,280 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 19:58:59,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:58:59,281 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 19:58:59,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:59,283 INFO L82 PathProgramCache]: Analyzing trace with hash -743748186, now seen corresponding path program 1 times [2020-10-23 19:58:59,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:59,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1814089749] [2020-10-23 19:58:59,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:59,296 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:59,879 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:59,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:59,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:59,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:59,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:59,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:59,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:59,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:59,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:59,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:58:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:59,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:58:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:00,001 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 19:59:00,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1814089749] [2020-10-23 19:59:00,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:59:00,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:59:00,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851621422] [2020-10-23 19:59:00,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:59:00,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:59:00,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:59:00,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:59:00,007 INFO L87 Difference]: Start difference. First operand 209 states and 223 transitions. Second operand 4 states. [2020-10-23 19:59:00,934 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:59:01,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:59:01,732 INFO L93 Difference]: Finished difference Result 283 states and 315 transitions. [2020-10-23 19:59:01,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 19:59:01,737 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 19:59:01,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:59:01,741 INFO L225 Difference]: With dead ends: 283 [2020-10-23 19:59:01,741 INFO L226 Difference]: Without dead ends: 232 [2020-10-23 19:59:01,743 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 19:59:01,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-10-23 19:59:01,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 199. [2020-10-23 19:59:01,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-10-23 19:59:01,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 210 transitions. [2020-10-23 19:59:01,818 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 210 transitions. Word has length 149 [2020-10-23 19:59:01,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:59:01,818 INFO L481 AbstractCegarLoop]: Abstraction has 199 states and 210 transitions. [2020-10-23 19:59:01,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:59:01,819 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 210 transitions. [2020-10-23 19:59:01,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-23 19:59:01,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:59:01,822 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] [2020-10-23 19:59:01,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:59:01,822 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 19:59:01,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:59:01,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1908834708, now seen corresponding path program 1 times [2020-10-23 19:59:01,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:59:01,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1841216590] [2020-10-23 19:59:01,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:59:01,828 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:59:01,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:02,270 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:59:02,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:59:02,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:02,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:59:02,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:02,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:59:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:02,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:59:02,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:02,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:59:02,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:02,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:59:02,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:02,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 19:59:02,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:02,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 19:59:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:02,461 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 19:59:02,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1841216590] [2020-10-23 19:59:02,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:59:02,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:59:02,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193674828] [2020-10-23 19:59:02,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:59:02,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:59:02,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:59:02,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:59:02,466 INFO L87 Difference]: Start difference. First operand 199 states and 210 transitions. Second operand 10 states. [2020-10-23 19:59:03,203 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:59:03,718 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:59:04,151 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:59:04,569 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:04,985 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:05,386 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:06,580 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:59:08,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:59:08,380 INFO L93 Difference]: Finished difference Result 515 states and 599 transitions. [2020-10-23 19:59:08,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 19:59:08,381 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-10-23 19:59:08,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:59:08,388 INFO L225 Difference]: With dead ends: 515 [2020-10-23 19:59:08,388 INFO L226 Difference]: Without dead ends: 431 [2020-10-23 19:59:08,390 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-23 19:59:08,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2020-10-23 19:59:08,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 330. [2020-10-23 19:59:08,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-10-23 19:59:08,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 362 transitions. [2020-10-23 19:59:08,558 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 362 transitions. Word has length 162 [2020-10-23 19:59:08,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:59:08,559 INFO L481 AbstractCegarLoop]: Abstraction has 330 states and 362 transitions. [2020-10-23 19:59:08,559 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:59:08,559 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 362 transitions. [2020-10-23 19:59:08,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-23 19:59:08,562 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:59:08,562 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:59:08,563 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:59:08,563 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 19:59:08,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:59:08,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1923678438, now seen corresponding path program 1 times [2020-10-23 19:59:08,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:59:08,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [531566755] [2020-10-23 19:59:08,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:59:08,568 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:59:08,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:09,032 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:59:09,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:59:09,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:09,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:59:09,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:09,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:59:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:09,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:59:09,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:09,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:59:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:09,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:59:09,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:09,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:59:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:09,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 19:59:09,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:09,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-23 19:59:09,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:09,254 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 19:59:09,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [531566755] [2020-10-23 19:59:09,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:59:09,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 19:59:09,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983475751] [2020-10-23 19:59:09,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 19:59:09,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:59:09,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 19:59:09,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-23 19:59:09,257 INFO L87 Difference]: Start difference. First operand 330 states and 362 transitions. Second operand 14 states. [2020-10-23 19:59:10,056 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:59:10,576 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:59:10,988 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:59:11,420 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:11,817 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:12,199 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:13,042 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:59:14,176 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:14,578 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:15,012 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:15,432 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:59:15,815 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:59:16,216 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:59:16,613 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:59:17,019 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:17,412 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:17,817 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:18,275 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:59:18,674 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:19,107 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:20,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:59:20,510 INFO L93 Difference]: Finished difference Result 1019 states and 1240 transitions. [2020-10-23 19:59:20,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-23 19:59:20,511 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 165 [2020-10-23 19:59:20,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:59:20,520 INFO L225 Difference]: With dead ends: 1019 [2020-10-23 19:59:20,520 INFO L226 Difference]: Without dead ends: 804 [2020-10-23 19:59:20,524 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-10-23 19:59:20,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2020-10-23 19:59:20,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 691. [2020-10-23 19:59:20,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2020-10-23 19:59:20,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 789 transitions. [2020-10-23 19:59:20,855 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 789 transitions. Word has length 165 [2020-10-23 19:59:20,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:59:20,856 INFO L481 AbstractCegarLoop]: Abstraction has 691 states and 789 transitions. [2020-10-23 19:59:20,856 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 19:59:20,857 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 789 transitions. [2020-10-23 19:59:20,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-23 19:59:20,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:59:20,861 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] [2020-10-23 19:59:20,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:59:20,862 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 19:59:20,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:59:20,864 INFO L82 PathProgramCache]: Analyzing trace with hash 318945261, now seen corresponding path program 1 times [2020-10-23 19:59:20,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:59:20,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [493301390] [2020-10-23 19:59:20,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:59:20,868 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:59:20,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:21,252 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:59:21,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:59:21,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:21,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:59:21,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:21,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:59:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:21,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:59:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:21,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:59:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:21,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:59:21,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:21,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 19:59:21,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:21,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 19:59:21,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:21,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 19:59:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:21,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-23 19:59:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:21,419 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 19:59:21,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [493301390] [2020-10-23 19:59:21,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:59:21,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 19:59:21,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026897008] [2020-10-23 19:59:21,422 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 19:59:21,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:59:21,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 19:59:21,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 19:59:21,429 INFO L87 Difference]: Start difference. First operand 691 states and 789 transitions. Second operand 6 states. [2020-10-23 19:59:22,045 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:59:23,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:59:23,301 INFO L93 Difference]: Finished difference Result 1293 states and 1531 transitions. [2020-10-23 19:59:23,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 19:59:23,301 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 170 [2020-10-23 19:59:23,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:59:23,307 INFO L225 Difference]: With dead ends: 1293 [2020-10-23 19:59:23,307 INFO L226 Difference]: Without dead ends: 717 [2020-10-23 19:59:23,310 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:59:23,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2020-10-23 19:59:23,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 626. [2020-10-23 19:59:23,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 626 states. [2020-10-23 19:59:23,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 685 transitions. [2020-10-23 19:59:23,612 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 685 transitions. Word has length 170 [2020-10-23 19:59:23,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:59:23,612 INFO L481 AbstractCegarLoop]: Abstraction has 626 states and 685 transitions. [2020-10-23 19:59:23,612 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 19:59:23,613 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 685 transitions. [2020-10-23 19:59:23,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-10-23 19:59:23,617 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:59:23,618 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:59:23,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:59:23,619 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 19:59:23,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:59:23,619 INFO L82 PathProgramCache]: Analyzing trace with hash 130281465, now seen corresponding path program 1 times [2020-10-23 19:59:23,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:59:23,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [995573308] [2020-10-23 19:59:23,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:59:23,772 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 19:59:23,994 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 19:59:24,182 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 19:59:24,384 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 19:59:24,599 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 19:59:24,801 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 19:59:25,012 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 19:59:25,229 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-23 19:59:25,436 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 19:59:25,656 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-23 19:59:25,867 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 19:59:26,074 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 19:59:26,272 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 19:59:26,487 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-23 19:59:26,850 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 19:59:27,165 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 19:59:27,444 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 19:59:27,688 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 19:59:27,942 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 19:59:28,231 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 19:59:28,518 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 19:59:28,850 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 19:59:28,854 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:59:31,544 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 19:59:31,560 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 19:59:34,042 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 19:59:34,048 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 19:59:35,015 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 19:59:35,022 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 19:59:37,489 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 19:59:37,494 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 19:59:40,098 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 19:59:42,516 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 19:59:42,521 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 19:59:45,015 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 19:59:45,019 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 19:59:47,475 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 19:59:47,480 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 19:59:47,485 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:59:47,791 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 19:59:48,096 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 19:59:48,389 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 19:59:48,683 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 19:59:48,973 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 19:59:49,266 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 19:59:49,558 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 19:59:49,870 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 19:59:49,873 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:59:52,290 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 19:59:52,295 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 19:59:54,703 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 19:59:54,707 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 19:59:57,105 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 19:59:59,523 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 19:59:59,528 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:00,654 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:00:03,106 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:00:03,114 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:05,623 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:00:05,628 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:08,176 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:00:08,181 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:08,193 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:00:08,477 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:00:08,772 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:00:09,075 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:00:09,378 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:00:09,694 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-10-23 20:00:09,984 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-10-23 20:00:10,288 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2020-10-23 20:00:10,607 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2020-10-23 20:00:10,609 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:00:13,049 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:00:15,581 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2020-10-23 20:00:15,584 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:18,038 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:00:18,043 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:20,456 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:00:20,459 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:22,905 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:00:22,910 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:25,362 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2020-10-23 20:00:25,368 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:27,858 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2020-10-23 20:00:27,861 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:29,302 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2020-10-23 20:00:29,306 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:29,309 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:00:29,614 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:00:29,928 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:00:30,206 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:00:30,505 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:00:30,830 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:00:31,146 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:00:31,458 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:00:31,768 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:00:31,790 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:00:34,228 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:00:34,233 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:36,116 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:00:36,120 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:38,588 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:00:38,592 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:41,114 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:00:43,662 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:00:43,665 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:46,201 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:00:46,207 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:48,680 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:00:48,683 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:50,148 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:00:50,151 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:50,155 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:00:50,451 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:00:50,741 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:00:51,038 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:00:51,333 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:00:51,627 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:00:51,915 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:00:52,208 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:00:52,509 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:00:52,512 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:00:53,866 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:00:53,870 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:56,333 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:00:56,336 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:57,836 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:00:57,839 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:00,303 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:01:00,307 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:02,796 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:01:02,799 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:05,249 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:01:05,252 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:07,748 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:01:07,752 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:10,246 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:01:10,249 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:10,253 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:01:10,597 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:10,930 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:11,264 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:11,591 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:11,909 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:12,227 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:12,553 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:12,889 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:12,891 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:01:15,399 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:01:15,403 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:17,861 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 146 [2020-10-23 20:01:17,864 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:20,354 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2020-10-23 20:01:20,357 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:21,839 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:01:21,842 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:24,376 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:01:24,380 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:26,900 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2020-10-23 20:01:26,903 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:28,772 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 148 [2020-10-23 20:01:28,775 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:31,252 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2020-10-23 20:01:31,258 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:01:33,001 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 151 [2020-10-23 20:01:33,004 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:35,473 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:01:35,476 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:37,068 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 151 [2020-10-23 20:01:39,558 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:01:42,122 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 150 [2020-10-23 20:01:44,633 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 148 [2020-10-23 20:01:44,635 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:47,135 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:01:47,137 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:49,661 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 151 [2020-10-23 20:01:49,666 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:01:52,171 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2020-10-23 20:01:52,173 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:54,717 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2020-10-23 20:01:54,721 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:57,346 WARN L193 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:01:59,948 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:01:59,952 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:02,508 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2020-10-23 20:02:04,608 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:02:07,205 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2020-10-23 20:02:07,208 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:09,814 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:02:09,818 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:02:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:02:10,308 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:02:10,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:02:10,872 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:02:11,101 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:02:11,101 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:02:11,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:02:11,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:02:11 BoogieIcfgContainer [2020-10-23 20:02:11,139 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:02:11,141 INFO L168 Benchmark]: Toolchain (without parser) took 197422.88 ms. Allocated memory was 151.0 MB in the beginning and 511.7 MB in the end (delta: 360.7 MB). Free memory was 126.2 MB in the beginning and 256.7 MB in the end (delta: -130.5 MB). Peak memory consumption was 230.7 MB. Max. memory is 8.0 GB. [2020-10-23 20:02:11,141 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:02:11,142 INFO L168 Benchmark]: CACSL2BoogieTranslator took 582.16 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 105.5 MB in the end (delta: 20.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:02:11,142 INFO L168 Benchmark]: Boogie Preprocessor took 133.68 ms. Allocated memory is still 151.0 MB. Free memory was 105.5 MB in the beginning and 101.9 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:02:11,143 INFO L168 Benchmark]: RCFGBuilder took 1780.06 ms. Allocated memory was 151.0 MB in the beginning and 192.9 MB in the end (delta: 41.9 MB). Free memory was 101.6 MB in the beginning and 169.6 MB in the end (delta: -68.0 MB). Peak memory consumption was 57.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:02:11,143 INFO L168 Benchmark]: TraceAbstraction took 194908.98 ms. Allocated memory was 192.9 MB in the beginning and 511.7 MB in the end (delta: 318.8 MB). Free memory was 169.6 MB in the beginning and 256.7 MB in the end (delta: -87.1 MB). Peak memory consumption was 231.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:02:11,146 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 582.16 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 105.5 MB in the end (delta: 20.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 133.68 ms. Allocated memory is still 151.0 MB. Free memory was 105.5 MB in the beginning and 101.9 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1780.06 ms. Allocated memory was 151.0 MB in the beginning and 192.9 MB in the end (delta: 41.9 MB). Free memory was 101.6 MB in the beginning and 169.6 MB in the end (delta: -68.0 MB). Peak memory consumption was 57.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 194908.98 ms. Allocated memory was 192.9 MB in the beginning and 511.7 MB in the end (delta: 318.8 MB). Free memory was 169.6 MB in the beginning and 256.7 MB in the end (delta: -87.1 MB). Peak memory consumption was 231.2 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: [L42] int cleanupTimeShifts = 4; [L185] int waterLevel = 1; [L186] int methaneLevelCritical = 0; [L270] int pumpRunning = 0; [L271] int systemActive = 1; [L639] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L123] int retValue_acc ; [L124] int tmp ; [L128] FCALL select_helpers() [L129] FCALL select_features() [L130] CALL, EXPR valid_product() [L172] int retValue_acc ; [L175] retValue_acc = 1 [L176] return (retValue_acc); [L130] RET, EXPR valid_product() [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L134] FCALL setup() [L135] CALL runTest() [L114] CALL test() [L402] int splverifierCounter ; [L403] int tmp ; [L404] int tmp___0 ; [L405] int tmp___1 ; [L406] int tmp___2 ; [L409] splverifierCounter = 0 [L411] COND TRUE 1 [L413] COND TRUE splverifierCounter < 4 [L419] tmp = __VERIFIER_nondet_int() [L421] COND TRUE \read(tmp) [L423] CALL waterRise() [L203] COND TRUE waterLevel < 2 [L204] waterLevel = waterLevel + 1 [L423] RET waterRise() [L429] tmp___0 = __VERIFIER_nondet_int() [L431] COND FALSE !(\read(tmp___0)) [L439] tmp___2 = __VERIFIER_nondet_int() [L441] COND TRUE \read(tmp___2) [L443] CALL startSystem() [L396] systemActive = 1 [L443] RET startSystem() [L458] CALL timeShift() [L278] COND FALSE !(\read(pumpRunning)) [L285] COND TRUE \read(systemActive) [L287] FCALL processEnvironment() [L293] CALL __utac_acc__Specification4_spec__1() [L846] int tmp ; [L847] int tmp___0 ; [L851] CALL, EXPR getWaterLevel() [L256] int retValue_acc ; [L259] retValue_acc = waterLevel [L260] return (retValue_acc); [L851] RET, EXPR getWaterLevel() [L851] tmp = getWaterLevel() [L853] COND FALSE !(tmp == 0) [L293] RET __utac_acc__Specification4_spec__1() [L458] RET timeShift() [L411] COND TRUE 1 [L413] COND TRUE splverifierCounter < 4 [L419] tmp = __VERIFIER_nondet_int() [L421] COND TRUE \read(tmp) [L423] CALL waterRise() [L203] COND TRUE waterLevel < 2 [L204] waterLevel = waterLevel + 1 [L423] RET waterRise() [L429] tmp___0 = __VERIFIER_nondet_int() [L431] COND FALSE !(\read(tmp___0)) [L439] tmp___2 = __VERIFIER_nondet_int() [L441] COND TRUE \read(tmp___2) [L443] CALL startSystem() [L396] systemActive = 1 [L443] RET startSystem() [L458] CALL timeShift() [L278] COND FALSE !(\read(pumpRunning)) [L285] COND TRUE \read(systemActive) [L287] FCALL processEnvironment() [L293] CALL __utac_acc__Specification4_spec__1() [L846] int tmp ; [L847] int tmp___0 ; [L851] CALL, EXPR getWaterLevel() [L256] int retValue_acc ; [L259] retValue_acc = waterLevel [L260] return (retValue_acc); [L851] RET, EXPR getWaterLevel() [L851] tmp = getWaterLevel() [L853] COND TRUE tmp == 0 [L855] CALL, EXPR isPumpRunning() [L333] int retValue_acc ; [L336] retValue_acc = pumpRunning [L337] return (retValue_acc); [L855] RET, EXPR isPumpRunning() [L855] tmp___0 = isPumpRunning() [L857] COND TRUE \read(tmp___0) [L859] CALL __automaton_fail() [L840] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product04.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 595 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 194.8s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 22.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 963 SDtfs, 1510 SDslu, 2191 SDs, 0 SdLazy, 3223 SolverSat, 489 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 162 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 13.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=691occurred 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: 1.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 378 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...