/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_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:00:27,209 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:00:27,213 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:00:27,276 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:00:27,276 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:00:27,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:00:27,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:00:27,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:00:27,305 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:00:27,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:00:27,312 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:00:27,313 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:00:27,314 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:00:27,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:00:27,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:00:27,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:00:27,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:00:27,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:00:27,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:00:27,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:00:27,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:00:27,331 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:00:27,332 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:00:27,334 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:00:27,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:00:27,341 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:00:27,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:00:27,343 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:00:27,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:00:27,344 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:00:27,345 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:00:27,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:00:27,347 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:00:27,348 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:00:27,349 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:00:27,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:00:27,350 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:00:27,350 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:00:27,351 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:00:27,352 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:00:27,353 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:00:27,354 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:00:27,374 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:00:27,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:00:27,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:00:27,376 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:00:27,376 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:00:27,376 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:00:27,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:00:27,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:00:27,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:00:27,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:00:27,377 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:00:27,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:00:27,378 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:00:27,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:00:27,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:00:27,378 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:00:27,379 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:00:27,379 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:00:27,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:00:27,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:00:27,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:00:27,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:00:27,380 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:00:27,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:00:27,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:00:27,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:00:27,808 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:00:27,808 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:00:27,810 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product11.cil.c [2020-10-23 20:00:27,914 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0bac12d6/a7c54200acfd4e608a6b130b88b778e3/FLAG00d102d52 [2020-10-23 20:00:28,716 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:00:28,717 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product11.cil.c [2020-10-23 20:00:28,737 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0bac12d6/a7c54200acfd4e608a6b130b88b778e3/FLAG00d102d52 [2020-10-23 20:00:29,021 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0bac12d6/a7c54200acfd4e608a6b130b88b778e3 [2020-10-23 20:00:29,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:00:29,032 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:00:29,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:00:29,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:00:29,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:00:29,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:00:29" (1/1) ... [2020-10-23 20:00:29,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9129e05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:00:29, skipping insertion in model container [2020-10-23 20:00:29,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:00:29" (1/1) ... [2020-10-23 20:00:29,054 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:00:29,101 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:00:29,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:00:29,445 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:00:29,570 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:00:29,603 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:00:29,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:00:29 WrapperNode [2020-10-23 20:00:29,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:00:29,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:00:29,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:00:29,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:00:29,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:00:29" (1/1) ... [2020-10-23 20:00:29,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:00:29" (1/1) ... [2020-10-23 20:00:29,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:00:29" (1/1) ... [2020-10-23 20:00:29,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:00:29" (1/1) ... [2020-10-23 20:00:29,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:00:29" (1/1) ... [2020-10-23 20:00:29,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:00:29" (1/1) ... [2020-10-23 20:00:29,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:00:29" (1/1) ... [2020-10-23 20:00:29,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:00:29,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:00:29,702 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:00:29,702 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:00:29,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:00:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:00:29,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:00:29,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:00:29,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:00:29,787 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:00:29,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:00:29,787 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:00:29,787 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:00:29,787 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-10-23 20:00:29,788 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:00:29,788 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:00:29,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:00:29,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:00:29,788 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:00:29,789 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 20:00:29,789 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:00:29,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:00:29,789 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:00:29,789 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:00:29,790 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:00:29,790 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:00:29,790 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:00:29,790 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:00:29,790 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:00:29,811 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:00:29,812 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:00:29,814 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:00:29,815 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:00:29,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:00:29,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:00:29,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:00:29,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:00:29,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:00:29,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:00:29,816 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:00:29,816 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:00:29,816 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:00:29,816 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:00:29,817 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:00:29,817 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:00:29,817 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:00:29,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:00:29,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:00:29,820 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:00:29,820 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:00:29,820 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:00:29,820 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:00:29,821 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:00:29,821 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:00:29,821 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:00:29,821 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:00:29,822 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:00:29,822 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:00:29,822 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 20:00:29,822 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:00:29,822 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:00:29,823 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-10-23 20:00:29,823 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:00:29,823 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:00:29,823 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:00:29,823 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:00:29,823 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:00:29,824 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:00:29,824 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:00:29,824 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:00:29,824 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:00:29,824 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:00:29,824 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:00:29,825 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:00:29,825 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:00:29,825 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:00:29,825 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:00:29,825 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:00:29,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:00:29,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:00:29,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:00:29,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:00:29,826 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:00:29,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:00:29,827 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:00:29,827 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:00:29,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:00:29,827 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:00:29,827 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:00:29,827 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:00:29,828 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:00:29,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:00:29,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:00:29,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:00:31,159 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:00:31,159 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:00:31,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:00:31 BoogieIcfgContainer [2020-10-23 20:00:31,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:00:31,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:00:31,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:00:31,169 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:00:31,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:00:29" (1/3) ... [2020-10-23 20:00:31,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44a333ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:00:31, skipping insertion in model container [2020-10-23 20:00:31,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:00:29" (2/3) ... [2020-10-23 20:00:31,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44a333ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:00:31, skipping insertion in model container [2020-10-23 20:00:31,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:00:31" (3/3) ... [2020-10-23 20:00:31,174 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product11.cil.c [2020-10-23 20:00:31,189 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:00:31,196 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:00:31,210 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:00:31,237 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:00:31,237 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:00:31,237 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:00:31,237 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:00:31,238 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:00:31,238 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:00:31,238 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:00:31,238 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:00:31,266 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states. [2020-10-23 20:00:31,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 20:00:31,286 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:00:31,287 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:00:31,287 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:00:31,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:00:31,294 INFO L82 PathProgramCache]: Analyzing trace with hash 128567441, now seen corresponding path program 1 times [2020-10-23 20:00:31,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:00:31,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [783683909] [2020-10-23 20:00:31,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:00:31,415 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:00:31,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:32,274 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:00:32,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:00:32,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:32,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:00:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:32,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:00:32,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:32,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:00:32,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:32,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:00:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:32,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:00:32,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:32,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:00:32,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:32,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:00:32,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [783683909] [2020-10-23 20:00:32,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:00:32,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 20:00:32,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839629863] [2020-10-23 20:00:32,522 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 20:00:32,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:00:32,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 20:00:32,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:00:32,543 INFO L87 Difference]: Start difference. First operand 259 states. Second operand 3 states. [2020-10-23 20:00:33,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:00:33,939 INFO L93 Difference]: Finished difference Result 373 states and 448 transitions. [2020-10-23 20:00:33,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 20:00:33,942 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 20:00:33,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:00:33,960 INFO L225 Difference]: With dead ends: 373 [2020-10-23 20:00:33,960 INFO L226 Difference]: Without dead ends: 244 [2020-10-23 20:00:33,965 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:00:33,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2020-10-23 20:00:34,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 205. [2020-10-23 20:00:34,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-23 20:00:34,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 219 transitions. [2020-10-23 20:00:34,102 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 219 transitions. Word has length 148 [2020-10-23 20:00:34,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:00:34,103 INFO L481 AbstractCegarLoop]: Abstraction has 205 states and 219 transitions. [2020-10-23 20:00:34,103 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 20:00:34,104 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 219 transitions. [2020-10-23 20:00:34,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 20:00:34,108 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:00:34,108 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:00:34,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:00:34,109 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:00:34,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:00:34,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1547340642, now seen corresponding path program 1 times [2020-10-23 20:00:34,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:00:34,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [827871537] [2020-10-23 20:00:34,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:00:34,115 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:00:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:34,549 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:00:34,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:00:34,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:34,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:00:34,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:34,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:00:34,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:34,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:00:34,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:34,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:00:34,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:34,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:00:34,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:34,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:00:34,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:34,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:00:34,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [827871537] [2020-10-23 20:00:34,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:00:34,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:00:34,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493484011] [2020-10-23 20:00:34,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:00:34,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:00:34,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:00:34,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:00:34,657 INFO L87 Difference]: Start difference. First operand 205 states and 219 transitions. Second operand 4 states. [2020-10-23 20:00:35,528 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:00:36,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:00:36,306 INFO L93 Difference]: Finished difference Result 278 states and 309 transitions. [2020-10-23 20:00:36,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 20:00:36,307 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 20:00:36,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:00:36,314 INFO L225 Difference]: With dead ends: 278 [2020-10-23 20:00:36,315 INFO L226 Difference]: Without dead ends: 227 [2020-10-23 20:00:36,320 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 20:00:36,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2020-10-23 20:00:36,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 195. [2020-10-23 20:00:36,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-10-23 20:00:36,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 206 transitions. [2020-10-23 20:00:36,408 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 206 transitions. Word has length 149 [2020-10-23 20:00:36,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:00:36,409 INFO L481 AbstractCegarLoop]: Abstraction has 195 states and 206 transitions. [2020-10-23 20:00:36,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:00:36,410 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 206 transitions. [2020-10-23 20:00:36,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-23 20:00:36,415 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:00:36,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:00:36,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:00:36,416 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:00:36,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:00:36,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1366491904, now seen corresponding path program 1 times [2020-10-23 20:00:36,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:00:36,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [983535032] [2020-10-23 20:00:36,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:00:36,423 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:00:36,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:37,006 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:00:37,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:00:37,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:37,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:00:37,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:37,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:00:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:37,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:00:37,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:37,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:00:37,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:37,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:00:37,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:37,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 20:00:37,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:37,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:00:37,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [983535032] [2020-10-23 20:00:37,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:00:37,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 20:00:37,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183326408] [2020-10-23 20:00:37,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 20:00:37,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:00:37,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 20:00:37,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 20:00:37,183 INFO L87 Difference]: Start difference. First operand 195 states and 206 transitions. Second operand 9 states. [2020-10-23 20:00:37,878 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:00:38,392 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:00:38,829 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:00:39,246 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:00:39,661 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:00:40,039 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:00:41,342 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:00:42,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:00:42,908 INFO L93 Difference]: Finished difference Result 479 states and 548 transitions. [2020-10-23 20:00:42,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:00:42,913 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-10-23 20:00:42,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:00:42,922 INFO L225 Difference]: With dead ends: 479 [2020-10-23 20:00:42,923 INFO L226 Difference]: Without dead ends: 399 [2020-10-23 20:00:42,927 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-23 20:00:42,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-10-23 20:00:43,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 326. [2020-10-23 20:00:43,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2020-10-23 20:00:43,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 358 transitions. [2020-10-23 20:00:43,144 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 358 transitions. Word has length 158 [2020-10-23 20:00:43,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:00:43,154 INFO L481 AbstractCegarLoop]: Abstraction has 326 states and 358 transitions. [2020-10-23 20:00:43,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 20:00:43,154 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 358 transitions. [2020-10-23 20:00:43,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-23 20:00:43,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:00:43,159 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:00:43,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:00:43,160 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:00:43,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:00:43,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1761834482, now seen corresponding path program 1 times [2020-10-23 20:00:43,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:00:43,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746592699] [2020-10-23 20:00:43,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:00:43,169 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:00:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:43,722 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:00:43,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:00:43,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:43,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:00:43,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:43,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:00:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:43,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:00:43,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:43,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:00:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:43,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 20:00:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:43,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-23 20:00:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:43,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-23 20:00:43,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:43,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:00:43,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746592699] [2020-10-23 20:00:43,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:00:43,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-23 20:00:43,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400684174] [2020-10-23 20:00:43,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-23 20:00:43,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:00:43,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-23 20:00:43,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2020-10-23 20:00:43,958 INFO L87 Difference]: Start difference. First operand 326 states and 358 transitions. Second operand 13 states. [2020-10-23 20:00:44,688 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:00:45,222 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:00:45,635 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:00:46,067 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:00:46,501 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:00:46,887 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:00:47,784 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:00:48,827 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:00:49,263 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:00:49,742 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:00:50,164 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:00:50,558 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:00:50,957 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:00:51,368 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:00:51,772 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:00:52,149 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:00:52,613 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:00:53,090 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:00:53,497 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:00:53,938 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:00:54,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:00:54,955 INFO L93 Difference]: Finished difference Result 933 states and 1118 transitions. [2020-10-23 20:00:54,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-23 20:00:54,955 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 161 [2020-10-23 20:00:54,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:00:54,962 INFO L225 Difference]: With dead ends: 933 [2020-10-23 20:00:54,962 INFO L226 Difference]: Without dead ends: 722 [2020-10-23 20:00:54,966 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=191, Invalid=865, Unknown=0, NotChecked=0, Total=1056 [2020-10-23 20:00:54,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2020-10-23 20:00:55,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 679. [2020-10-23 20:00:55,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 679 states. [2020-10-23 20:00:55,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 777 transitions. [2020-10-23 20:00:55,356 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 777 transitions. Word has length 161 [2020-10-23 20:00:55,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:00:55,361 INFO L481 AbstractCegarLoop]: Abstraction has 679 states and 777 transitions. [2020-10-23 20:00:55,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-23 20:00:55,362 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 777 transitions. [2020-10-23 20:00:55,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-23 20:00:55,366 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:00:55,367 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:00:55,367 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:00:55,368 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:00:55,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:00:55,369 INFO L82 PathProgramCache]: Analyzing trace with hash -813842485, now seen corresponding path program 1 times [2020-10-23 20:00:55,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:00:55,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [990994917] [2020-10-23 20:00:55,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:00:55,374 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:00:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:55,797 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:00:55,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:00:55,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:55,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:00:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:55,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:00:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:55,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:00:55,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:55,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:00:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:55,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-23 20:00:55,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:55,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 20:00:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:55,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-23 20:00:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:55,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 20:00:55,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:00:55,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:00:55,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [990994917] [2020-10-23 20:00:55,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:00:55,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 20:00:55,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995323763] [2020-10-23 20:00:55,944 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 20:00:55,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:00:55,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 20:00:55,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:00:55,945 INFO L87 Difference]: Start difference. First operand 679 states and 777 transitions. Second operand 5 states. [2020-10-23 20:00:56,633 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:00:57,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:00:57,563 INFO L93 Difference]: Finished difference Result 1148 states and 1343 transitions. [2020-10-23 20:00:57,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 20:00:57,577 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 166 [2020-10-23 20:00:57,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:00:57,585 INFO L225 Difference]: With dead ends: 1148 [2020-10-23 20:00:57,585 INFO L226 Difference]: Without dead ends: 636 [2020-10-23 20:00:57,589 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-23 20:00:57,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2020-10-23 20:00:57,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 614. [2020-10-23 20:00:57,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 614 states. [2020-10-23 20:00:57,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 673 transitions. [2020-10-23 20:00:57,932 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 673 transitions. Word has length 166 [2020-10-23 20:00:57,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:00:57,933 INFO L481 AbstractCegarLoop]: Abstraction has 614 states and 673 transitions. [2020-10-23 20:00:57,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 20:00:57,933 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 673 transitions. [2020-10-23 20:00:57,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-23 20:00:57,938 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:00:57,939 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:00:57,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:00:57,940 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:00:57,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:00:57,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1875960693, now seen corresponding path program 1 times [2020-10-23 20:00:57,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:00:57,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [813810784] [2020-10-23 20:00:57,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:00:58,089 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-10-23 20:00:58,389 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-10-23 20:00:58,632 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-10-23 20:00:58,861 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-10-23 20:00:59,104 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-10-23 20:00:59,336 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-10-23 20:00:59,561 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-10-23 20:00:59,765 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-10-23 20:00:59,992 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-10-23 20:01:00,225 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-10-23 20:01:00,463 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-10-23 20:01:00,669 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-10-23 20:01:00,879 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-10-23 20:01:01,100 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-10-23 20:01:04,093 WARN L193 SmtUtils]: Spent 711.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 162 [2020-10-23 20:01:04,118 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:06,713 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 162 [2020-10-23 20:01:06,721 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:09,227 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 162 [2020-10-23 20:01:09,238 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:11,857 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:01:11,866 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:12,986 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:01:12,991 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:15,517 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 162 [2020-10-23 20:01:15,523 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:18,030 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 162 [2020-10-23 20:01:20,585 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:01:20,591 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:23,072 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 162 [2020-10-23 20:01:23,081 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:24,533 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:01:24,539 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:27,018 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 162 [2020-10-23 20:01:27,023 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:28,284 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:01:28,289 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:29,433 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:01:29,439 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:31,953 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:01:31,958 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:34,448 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 162 [2020-10-23 20:01:36,983 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:01:36,988 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:36,994 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:01:39,512 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:01:39,516 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:42,090 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:01:42,094 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:44,684 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:01:44,689 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:46,139 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:01:46,144 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:48,637 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:01:48,641 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:51,145 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:01:53,620 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:01:53,623 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:56,113 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:01:56,117 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:58,616 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:01:58,619 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:01,109 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:02:01,113 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:03,615 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:02:03,620 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:05,622 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:02:05,626 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:08,154 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:02:08,162 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:10,643 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:02:10,647 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:12,385 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:02:12,391 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:14,891 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:02:14,895 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:14,898 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:02:17,416 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:02:17,424 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:19,895 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 162 [2020-10-23 20:02:19,900 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:22,380 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:02:24,819 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 162 [2020-10-23 20:02:24,823 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:27,280 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 162 [2020-10-23 20:02:27,286 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:28,945 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:02:28,949 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:31,423 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 162 [2020-10-23 20:02:33,899 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 162 [2020-10-23 20:02:33,903 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:36,391 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:02:36,395 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:38,876 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:02:41,348 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 162 [2020-10-23 20:02:41,352 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:43,870 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 162 [2020-10-23 20:02:43,873 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:45,371 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:02:45,375 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:47,234 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:02:47,237 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:49,721 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 162 [2020-10-23 20:02:49,725 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:52,269 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2020-10-23 20:02:52,273 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:52,276 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:02:52,590 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:02:52,933 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:02:53,251 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:02:53,577 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:02:53,918 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:02:54,243 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:02:54,579 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:02:54,898 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:02:55,240 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:02:55,575 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:02:55,912 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:02:56,239 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:02:56,570 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:02:56,900 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:02:57,240 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:02:57,556 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:02:57,558 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:03:00,070 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:03:00,074 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:02,638 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:03:02,643 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:05,164 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:03:05,167 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:07,675 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:03:07,677 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:10,225 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:03:10,229 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:11,907 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:03:11,910 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:14,408 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:03:14,412 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:16,935 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:03:16,938 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:19,454 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:03:19,458 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:21,195 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:03:23,390 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:03:23,394 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:25,211 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:03:25,214 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:27,761 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:03:27,765 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:30,296 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:03:30,299 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:32,879 WARN L193 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:03:32,882 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:34,850 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:03:34,853 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:34,857 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:03:35,208 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-10-23 20:03:35,560 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-10-23 20:03:35,914 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-10-23 20:03:36,258 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-10-23 20:03:36,603 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:03:36,959 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:03:37,316 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-10-23 20:03:37,670 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-10-23 20:03:38,024 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:03:38,379 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:03:38,744 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-10-23 20:03:39,087 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:03:39,431 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:03:39,785 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:03:40,133 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-10-23 20:03:40,473 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:03:40,475 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:03:42,991 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 157 [2020-10-23 20:03:42,994 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:45,514 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:03:47,824 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 159 [2020-10-23 20:03:47,827 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:50,349 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:03:52,922 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 160 [2020-10-23 20:03:52,925 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:55,468 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 160 [2020-10-23 20:03:55,471 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:03:58,015 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 160 [2020-10-23 20:03:58,019 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:00,148 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 160 [2020-10-23 20:04:00,152 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:02,773 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 160 [2020-10-23 20:04:05,312 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:04:05,314 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:07,851 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 157 [2020-10-23 20:04:07,854 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:10,425 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:04:10,428 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:12,999 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:04:13,001 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:15,587 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 159 [2020-10-23 20:04:15,590 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:18,211 WARN L193 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 160 [2020-10-23 20:04:20,784 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:04:20,787 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:20,789 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:04:23,371 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 160 [2020-10-23 20:04:23,375 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:25,944 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 160 [2020-10-23 20:04:25,947 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:28,422 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 162 [2020-10-23 20:04:28,425 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:31,050 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 162 [2020-10-23 20:04:31,054 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:33,626 WARN L193 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 160 [2020-10-23 20:04:33,629 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:36,245 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 162 [2020-10-23 20:04:36,248 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:38,820 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 160 [2020-10-23 20:04:41,443 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 162 [2020-10-23 20:04:41,447 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:44,037 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 160 [2020-10-23 20:04:44,040 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:46,679 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 162 [2020-10-23 20:04:49,298 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 162 [2020-10-23 20:04:49,300 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:51,881 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 160 [2020-10-23 20:04:51,884 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:54,523 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 162 [2020-10-23 20:04:54,526 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:57,115 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 160 [2020-10-23 20:04:57,117 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:04:59,730 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 160 [2020-10-23 20:05:02,397 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 162 [2020-10-23 20:05:02,401 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:02,404 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:05:04,986 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:05:04,988 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:07,550 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:05:07,553 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:10,164 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 159 [2020-10-23 20:05:10,168 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:12,737 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:05:12,740 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:15,311 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 160 [2020-10-23 20:05:15,314 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:17,910 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 160 [2020-10-23 20:05:17,912 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:20,504 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:05:20,508 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:23,165 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 160 [2020-10-23 20:05:23,169 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:25,797 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 157 [2020-10-23 20:05:25,801 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:28,392 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:05:28,395 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:31,095 WARN L193 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 160 [2020-10-23 20:05:31,099 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:33,739 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 157 [2020-10-23 20:05:33,742 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:36,405 WARN L193 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 159 [2020-10-23 20:05:39,076 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 160 [2020-10-23 20:05:41,687 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:05:41,689 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:44,420 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 160 [2020-10-23 20:05:44,424 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:44,427 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:05:47,191 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 161 [2020-10-23 20:05:47,194 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:49,872 WARN L193 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 159 [2020-10-23 20:05:49,876 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:52,566 WARN L193 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 159 [2020-10-23 20:05:52,570 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:55,315 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 161 [2020-10-23 20:05:55,318 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:05:58,107 WARN L193 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 161 [2020-10-23 20:05:58,110 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:00,863 WARN L193 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 161 [2020-10-23 20:06:03,430 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 159 [2020-10-23 20:06:06,085 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 161 [2020-10-23 20:06:06,087 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:08,741 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 161 [2020-10-23 20:06:08,744 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:11,389 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 159 [2020-10-23 20:06:11,392 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:14,132 WARN L193 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 161 [2020-10-23 20:06:14,136 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:16,861 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 161 [2020-10-23 20:06:16,865 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:19,532 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 159 [2020-10-23 20:06:19,536 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:22,204 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 159 [2020-10-23 20:06:24,893 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 159 [2020-10-23 20:06:24,898 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:27,624 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 159 [2020-10-23 20:06:27,627 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:27,631 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:06:28,034 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:06:28,452 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:06:28,862 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:06:29,226 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:06:29,602 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:06:30,009 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:06:30,402 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:06:30,797 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:06:31,185 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:06:31,562 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:06:31,936 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:06:32,329 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:06:32,719 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:06:33,126 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:06:33,524 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:06:33,923 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-10-23 20:06:33,925 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:06:34,299 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:06:34,673 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2020-10-23 20:06:35,068 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2020-10-23 20:06:35,470 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:06:35,867 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 107 [2020-10-23 20:06:36,259 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 106 [2020-10-23 20:06:36,647 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 106 [2020-10-23 20:06:37,019 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:06:37,392 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:06:37,784 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:06:38,171 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 107 [2020-10-23 20:06:38,564 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:06:38,953 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 107 [2020-10-23 20:06:39,342 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 106 [2020-10-23 20:06:39,699 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 107 [2020-10-23 20:06:40,104 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 106 [2020-10-23 20:06:40,106 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:06:40,515 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2020-10-23 20:06:40,925 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:06:41,326 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:06:41,698 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:06:42,081 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:06:42,475 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:06:42,880 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2020-10-23 20:06:43,278 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:06:43,679 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:06:44,077 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:06:44,436 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2020-10-23 20:06:44,853 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2020-10-23 20:06:45,277 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2020-10-23 20:06:45,706 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:06:46,125 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2020-10-23 20:06:46,516 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:06:46,520 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:06:46,891 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 107 [2020-10-23 20:06:47,283 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:06:47,681 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:06:48,077 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 107 [2020-10-23 20:06:48,478 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 106 [2020-10-23 20:06:48,878 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 106 [2020-10-23 20:06:49,248 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 106 [2020-10-23 20:06:49,647 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 107 [2020-10-23 20:06:50,073 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2020-10-23 20:06:50,507 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 107 [2020-10-23 20:06:50,939 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2020-10-23 20:06:51,382 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:06:51,754 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:06:52,135 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:06:52,531 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 106 [2020-10-23 20:06:52,935 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-23 20:06:52,937 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:06:53,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:06:53,611 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:06:54,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:06:54,342 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:06:54,651 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:06:54,651 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:06:54,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:06:54,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:06:54 BoogieIcfgContainer [2020-10-23 20:06:54,714 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:06:54,716 INFO L168 Benchmark]: Toolchain (without parser) took 385689.38 ms. Allocated memory was 151.0 MB in the beginning and 458.2 MB in the end (delta: 307.2 MB). Free memory was 126.4 MB in the beginning and 315.6 MB in the end (delta: -189.2 MB). Peak memory consumption was 291.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:06:54,716 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 151.0 MB. Free memory is still 124.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:06:54,716 INFO L168 Benchmark]: CACSL2BoogieTranslator took 570.40 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 106.1 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-23 20:06:54,716 INFO L168 Benchmark]: Boogie Preprocessor took 95.34 ms. Allocated memory is still 151.0 MB. Free memory was 106.1 MB in the beginning and 102.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:06:54,718 INFO L168 Benchmark]: RCFGBuilder took 1461.45 ms. Allocated memory was 151.0 MB in the beginning and 183.5 MB in the end (delta: 32.5 MB). Free memory was 102.3 MB in the beginning and 123.4 MB in the end (delta: -21.1 MB). Peak memory consumption was 29.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:06:54,719 INFO L168 Benchmark]: TraceAbstraction took 383549.59 ms. Allocated memory was 183.5 MB in the beginning and 458.2 MB in the end (delta: 274.7 MB). Free memory was 122.9 MB in the beginning and 315.6 MB in the end (delta: -192.8 MB). Peak memory consumption was 254.4 MB. Max. memory is 8.0 GB. [2020-10-23 20:06:54,722 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 151.0 MB. Free memory is still 124.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 570.40 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 106.1 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 95.34 ms. Allocated memory is still 151.0 MB. Free memory was 106.1 MB in the beginning and 102.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1461.45 ms. Allocated memory was 151.0 MB in the beginning and 183.5 MB in the end (delta: 32.5 MB). Free memory was 102.3 MB in the beginning and 123.4 MB in the end (delta: -21.1 MB). Peak memory consumption was 29.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 383549.59 ms. Allocated memory was 183.5 MB in the beginning and 458.2 MB in the end (delta: 274.7 MB). Free memory was 122.9 MB in the beginning and 315.6 MB in the end (delta: -192.8 MB). Peak memory consumption was 254.4 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: [L60] int pumpRunning = 0; [L61] int systemActive = 1; [L298] int waterLevel = 1; [L299] int methaneLevelCritical = 0; [L378] int cleanupTimeShifts = 4; [L646] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L454] int retValue_acc ; [L455] int tmp ; [L459] FCALL select_helpers() [L460] FCALL select_features() [L461] CALL, EXPR valid_product() [L869] int retValue_acc ; [L872] retValue_acc = 1 [L873] return (retValue_acc); [L461] RET, EXPR valid_product() [L461] tmp = valid_product() [L463] COND TRUE \read(tmp) [L465] FCALL setup() [L466] CALL runTest() [L445] CALL test() [L205] int splverifierCounter ; [L206] int tmp ; [L207] int tmp___0 ; [L208] int tmp___1 ; [L209] int tmp___2 ; [L212] splverifierCounter = 0 [L214] COND TRUE 1 [L216] COND TRUE splverifierCounter < 4 [L222] tmp = __VERIFIER_nondet_int() [L224] COND TRUE \read(tmp) [L226] CALL waterRise() [L316] COND TRUE waterLevel < 2 [L317] waterLevel = waterLevel + 1 [L226] RET waterRise() [L232] tmp___0 = __VERIFIER_nondet_int() [L234] COND FALSE !(\read(tmp___0)) [L242] tmp___2 = __VERIFIER_nondet_int() [L244] COND TRUE \read(tmp___2) [L259] CALL timeShift() [L68] COND FALSE !(\read(pumpRunning)) [L75] COND TRUE \read(systemActive) [L77] FCALL processEnvironment() [L83] CALL __utac_acc__Specification4_spec__1() [L273] int tmp ; [L274] int tmp___0 ; [L278] CALL, EXPR getWaterLevel() [L369] int retValue_acc ; [L372] retValue_acc = waterLevel [L373] return (retValue_acc); [L278] RET, EXPR getWaterLevel() [L278] tmp = getWaterLevel() [L280] COND FALSE !(tmp == 0) [L83] RET __utac_acc__Specification4_spec__1() [L259] RET timeShift() [L214] COND TRUE 1 [L216] COND TRUE splverifierCounter < 4 [L222] tmp = __VERIFIER_nondet_int() [L224] COND TRUE \read(tmp) [L226] CALL waterRise() [L316] COND TRUE waterLevel < 2 [L317] waterLevel = waterLevel + 1 [L226] RET waterRise() [L232] tmp___0 = __VERIFIER_nondet_int() [L234] COND FALSE !(\read(tmp___0)) [L242] tmp___2 = __VERIFIER_nondet_int() [L244] COND TRUE \read(tmp___2) [L259] CALL timeShift() [L68] COND FALSE !(\read(pumpRunning)) [L75] COND TRUE \read(systemActive) [L77] FCALL processEnvironment() [L83] CALL __utac_acc__Specification4_spec__1() [L273] int tmp ; [L274] int tmp___0 ; [L278] CALL, EXPR getWaterLevel() [L369] int retValue_acc ; [L372] retValue_acc = waterLevel [L373] return (retValue_acc); [L278] RET, EXPR getWaterLevel() [L278] tmp = getWaterLevel() [L280] COND TRUE tmp == 0 [L282] CALL, EXPR isPumpRunning() [L141] int retValue_acc ; [L144] retValue_acc = pumpRunning [L145] return (retValue_acc); [L282] RET, EXPR isPumpRunning() [L282] tmp___0 = isPumpRunning() [L284] COND TRUE \read(tmp___0) [L286] CALL __automaton_fail() [L46] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product11.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 600 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 383.4s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 21.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 935 SDtfs, 1261 SDslu, 1810 SDs, 0 SdLazy, 2694 SolverSat, 427 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 149 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 13.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=679occurred 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: 1.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 209 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...