/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_product06.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:59:14,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:59:14,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:59:14,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:59:14,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:59:14,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:59:14,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:59:14,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:59:14,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:59:14,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:59:14,389 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:59:14,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:59:14,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:59:14,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:59:14,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:59:14,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:59:14,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:59:14,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:59:14,408 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:59:14,416 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:59:14,418 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:59:14,419 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:59:14,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:59:14,424 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:59:14,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:59:14,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:59:14,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:59:14,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:59:14,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:59:14,436 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:59:14,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:59:14,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:59:14,438 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:59:14,439 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:59:14,440 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:59:14,440 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:59:14,441 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:59:14,441 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:59:14,441 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:59:14,442 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:59:14,443 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:59:14,444 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 19:59:14,464 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:59:14,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:59:14,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:59:14,468 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:59:14,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:59:14,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:59:14,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:59:14,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:59:14,469 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:59:14,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:59:14,471 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:59:14,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:59:14,471 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:59:14,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:59:14,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:59:14,472 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:59:14,472 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:59:14,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:59:14,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:59:14,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:59:14,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:59:14,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:59:14,473 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:59:14,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:59:14,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:59:14,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:59:14,905 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:59:14,911 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:59:14,912 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product06.cil.c [2020-10-23 19:59:15,006 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d139845c7/6e9333f942084986adfb75d0768e16df/FLAGd55e4c0ff [2020-10-23 19:59:15,662 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:59:15,663 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product06.cil.c [2020-10-23 19:59:15,677 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d139845c7/6e9333f942084986adfb75d0768e16df/FLAGd55e4c0ff [2020-10-23 19:59:15,967 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d139845c7/6e9333f942084986adfb75d0768e16df [2020-10-23 19:59:15,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:59:15,975 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:59:15,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:59:15,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:59:15,981 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:59:15,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:59:15" (1/1) ... [2020-10-23 19:59:15,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@673a6309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:15, skipping insertion in model container [2020-10-23 19:59:15,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:59:15" (1/1) ... [2020-10-23 19:59:15,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:59:16,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:59:16,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:59:16,341 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:59:16,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:59:16,554 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:59:16,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:16 WrapperNode [2020-10-23 19:59:16,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:59:16,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:59:16,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:59:16,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:59:16,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:16" (1/1) ... [2020-10-23 19:59:16,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:16" (1/1) ... [2020-10-23 19:59:16,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:16" (1/1) ... [2020-10-23 19:59:16,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:16" (1/1) ... [2020-10-23 19:59:16,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:16" (1/1) ... [2020-10-23 19:59:16,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:16" (1/1) ... [2020-10-23 19:59:16,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:16" (1/1) ... [2020-10-23 19:59:16,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:59:16,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:59:16,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:59:16,644 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:59:16,645 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:59:16,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:59:16,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:59:16,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:59:16,738 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:59:16,738 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:59:16,738 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:59:16,738 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:59:16,738 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:59:16,739 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:59:16,739 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:59:16,739 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:59:16,739 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:59:16,739 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:59:16,740 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:59:16,740 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:59:16,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 19:59:16,740 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:59:16,741 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 19:59:16,741 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:59:16,741 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:59:16,742 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:59:16,742 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:59:16,744 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:59:16,744 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:59:16,744 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 19:59:16,745 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:59:16,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:59:16,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:59:16,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:59:16,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:59:16,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:59:16,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:59:16,746 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:59:16,746 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:59:16,746 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:59:16,746 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:59:16,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:59:16,746 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:59:16,746 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:59:16,747 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:59:16,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:59:16,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:59:16,747 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:59:16,747 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:59:16,747 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:59:16,747 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:59:16,748 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:59:16,748 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:59:16,748 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:59:16,748 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:59:16,748 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:59:16,748 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:59:16,748 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:59:16,748 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:59:16,749 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:59:16,749 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:59:16,749 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:59:16,749 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:59:16,749 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:59:16,749 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:59:16,749 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:59:16,749 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:59:16,750 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 19:59:16,750 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:59:16,750 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:59:16,750 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 19:59:16,750 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:59:16,750 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 19:59:16,750 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:59:16,750 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:59:16,751 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:59:16,751 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:59:16,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:59:16,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:59:16,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:59:16,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:59:16,752 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:59:16,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:59:16,752 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:59:16,752 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:59:16,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:59:16,753 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:59:16,753 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:59:16,753 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:59:16,753 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:59:16,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:59:16,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:59:16,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:59:17,835 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:59:17,835 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:59:17,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:59:17 BoogieIcfgContainer [2020-10-23 19:59:17,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:59:17,840 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:59:17,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:59:17,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:59:17,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:59:15" (1/3) ... [2020-10-23 19:59:17,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb75dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:59:17, skipping insertion in model container [2020-10-23 19:59:17,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:59:16" (2/3) ... [2020-10-23 19:59:17,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb75dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:59:17, skipping insertion in model container [2020-10-23 19:59:17,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:59:17" (3/3) ... [2020-10-23 19:59:17,847 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product06.cil.c [2020-10-23 19:59:17,858 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:59:17,864 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:59:17,877 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:59:17,901 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:59:17,902 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:59:17,902 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:59:17,902 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:59:17,902 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:59:17,902 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:59:17,902 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:59:17,903 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:59:17,931 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states. [2020-10-23 19:59:17,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 19:59:17,950 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:59:17,951 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:59:17,952 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:59:17,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:59:17,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1569897595, now seen corresponding path program 1 times [2020-10-23 19:59:17,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:59:17,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [775272585] [2020-10-23 19:59:17,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:59:18,049 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:59:18,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:18,678 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:59:18,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:59:18,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:18,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:59:18,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:18,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:59:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:18,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:59:18,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:18,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:59:18,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:18,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 19:59:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:18,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 19:59:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:18,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:59:18,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [775272585] [2020-10-23 19:59:18,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:59:18,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 19:59:18,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176786008] [2020-10-23 19:59:18,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 19:59:18,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:59:18,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 19:59:18,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:59:18,875 INFO L87 Difference]: Start difference. First operand 282 states. Second operand 3 states. [2020-10-23 19:59:20,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:59:20,382 INFO L93 Difference]: Finished difference Result 420 states and 500 transitions. [2020-10-23 19:59:20,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 19:59:20,384 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 19:59:20,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:59:20,400 INFO L225 Difference]: With dead ends: 420 [2020-10-23 19:59:20,400 INFO L226 Difference]: Without dead ends: 268 [2020-10-23 19:59:20,405 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 19:59:20,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-10-23 19:59:20,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 228. [2020-10-23 19:59:20,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-10-23 19:59:20,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 244 transitions. [2020-10-23 19:59:20,554 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 244 transitions. Word has length 148 [2020-10-23 19:59:20,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:59:20,555 INFO L481 AbstractCegarLoop]: Abstraction has 228 states and 244 transitions. [2020-10-23 19:59:20,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 19:59:20,555 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 244 transitions. [2020-10-23 19:59:20,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 19:59:20,560 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:59:20,560 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:59:20,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:59:20,561 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:59:20,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:59:20,562 INFO L82 PathProgramCache]: Analyzing trace with hash 2056610962, now seen corresponding path program 1 times [2020-10-23 19:59:20,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:59:20,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1898100038] [2020-10-23 19:59:20,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:59:20,567 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:59:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:21,113 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:59:21,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:59:21,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:21,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:59:21,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:21,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:59:21,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:21,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:59:21,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:21,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:59:21,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:21,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:59:21,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:21,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:59:21,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:21,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:59:21,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1898100038] [2020-10-23 19:59:21,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:59:21,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:59:21,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708856697] [2020-10-23 19:59:21,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:59:21,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:59:21,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:59:21,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:59:21,205 INFO L87 Difference]: Start difference. First operand 228 states and 244 transitions. Second operand 4 states. [2020-10-23 19:59:22,050 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:59:22,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:59:22,902 INFO L93 Difference]: Finished difference Result 330 states and 367 transitions. [2020-10-23 19:59:22,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 19:59:22,904 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 19:59:22,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:59:22,908 INFO L225 Difference]: With dead ends: 330 [2020-10-23 19:59:22,908 INFO L226 Difference]: Without dead ends: 251 [2020-10-23 19:59:22,910 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 19:59:22,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-10-23 19:59:22,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 218. [2020-10-23 19:59:22,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-23 19:59:22,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 231 transitions. [2020-10-23 19:59:22,988 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 231 transitions. Word has length 149 [2020-10-23 19:59:22,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:59:22,989 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 231 transitions. [2020-10-23 19:59:22,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:59:22,989 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 231 transitions. [2020-10-23 19:59:22,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-23 19:59:22,992 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:59:22,992 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:59:22,993 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:59:22,993 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:59:22,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:59:22,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1868130761, now seen corresponding path program 1 times [2020-10-23 19:59:22,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:59:22,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [805922203] [2020-10-23 19:59:22,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:59:22,998 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:59:23,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:23,465 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:59:23,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:59:23,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:23,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:59:23,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:23,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:59:23,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:23,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:59:23,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:23,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:59:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:23,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:59:23,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:23,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 19:59:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:23,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 19:59:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:23,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:59:23,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [805922203] [2020-10-23 19:59:23,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:59:23,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:59:23,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784065001] [2020-10-23 19:59:23,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:59:23,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:59:23,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:59:23,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:59:23,640 INFO L87 Difference]: Start difference. First operand 218 states and 231 transitions. Second operand 10 states. [2020-10-23 19:59:24,370 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:59:24,823 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:59:25,223 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:59:25,607 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:25,972 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:26,349 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:27,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:59:27,900 INFO L93 Difference]: Finished difference Result 376 states and 429 transitions. [2020-10-23 19:59:27,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 19:59:27,900 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-10-23 19:59:27,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:59:27,903 INFO L225 Difference]: With dead ends: 376 [2020-10-23 19:59:27,904 INFO L226 Difference]: Without dead ends: 273 [2020-10-23 19:59:27,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-23 19:59:27,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-10-23 19:59:27,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 218. [2020-10-23 19:59:27,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-23 19:59:27,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 230 transitions. [2020-10-23 19:59:27,986 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 230 transitions. Word has length 162 [2020-10-23 19:59:27,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:59:27,987 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 230 transitions. [2020-10-23 19:59:27,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:59:27,987 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 230 transitions. [2020-10-23 19:59:27,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-23 19:59:27,990 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:59:27,990 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:59:27,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:59:27,991 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:59:27,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:59:27,991 INFO L82 PathProgramCache]: Analyzing trace with hash -2103072392, now seen corresponding path program 1 times [2020-10-23 19:59:27,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:59:27,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1626408328] [2020-10-23 19:59:27,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:59:27,995 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:59:28,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:28,492 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:59:28,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:59:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:28,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:59:28,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:28,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:59:28,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:28,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:59:28,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:28,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:59:28,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:28,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:59:28,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:28,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:59:28,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:28,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:59:28,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:28,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 19:59:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:28,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-23 19:59:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:28,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:59:28,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1626408328] [2020-10-23 19:59:28,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:59:28,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-23 19:59:28,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005139772] [2020-10-23 19:59:28,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-23 19:59:28,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:59:28,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-23 19:59:28,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-10-23 19:59:28,749 INFO L87 Difference]: Start difference. First operand 218 states and 230 transitions. Second operand 15 states. [2020-10-23 19:59:29,464 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:59:29,969 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:59:30,332 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:59:30,735 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:31,109 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:31,477 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:32,364 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:59:33,672 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:34,072 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:34,557 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:34,989 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:59:35,365 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:59:35,727 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:59:36,114 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:59:36,482 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:36,847 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:37,286 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:37,808 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:59:38,212 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:38,683 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:40,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:59:40,838 INFO L93 Difference]: Finished difference Result 740 states and 936 transitions. [2020-10-23 19:59:40,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-23 19:59:40,839 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 170 [2020-10-23 19:59:40,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:59:40,846 INFO L225 Difference]: With dead ends: 740 [2020-10-23 19:59:40,846 INFO L226 Difference]: Without dead ends: 637 [2020-10-23 19:59:40,848 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=386, Invalid=1336, Unknown=0, NotChecked=0, Total=1722 [2020-10-23 19:59:40,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2020-10-23 19:59:41,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 398. [2020-10-23 19:59:41,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2020-10-23 19:59:41,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 436 transitions. [2020-10-23 19:59:41,059 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 436 transitions. Word has length 170 [2020-10-23 19:59:41,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:59:41,060 INFO L481 AbstractCegarLoop]: Abstraction has 398 states and 436 transitions. [2020-10-23 19:59:41,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-23 19:59:41,060 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 436 transitions. [2020-10-23 19:59:41,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-23 19:59:41,063 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:59:41,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:59:41,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:59:41,064 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:59:41,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:59:41,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1585707252, now seen corresponding path program 1 times [2020-10-23 19:59:41,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:59:41,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1325641282] [2020-10-23 19:59:41,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:59:41,068 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:59:41,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:41,432 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:59:41,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:59:41,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:41,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:59:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:41,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:59:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:41,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:59:41,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:41,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:59:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:41,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:59:41,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:41,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 19:59:41,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:41,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 19:59:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:41,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:59:41,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:41,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-23 19:59:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:41,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-23 19:59:41,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:41,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:59:41,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1325641282] [2020-10-23 19:59:41,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:59:41,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 19:59:41,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885156218] [2020-10-23 19:59:41,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 19:59:41,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:59:41,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 19:59:41,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-23 19:59:41,581 INFO L87 Difference]: Start difference. First operand 398 states and 436 transitions. Second operand 7 states. [2020-10-23 19:59:42,203 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:59:43,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:59:43,246 INFO L93 Difference]: Finished difference Result 679 states and 790 transitions. [2020-10-23 19:59:43,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 19:59:43,247 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 175 [2020-10-23 19:59:43,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:59:43,251 INFO L225 Difference]: With dead ends: 679 [2020-10-23 19:59:43,251 INFO L226 Difference]: Without dead ends: 396 [2020-10-23 19:59:43,253 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2020-10-23 19:59:43,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2020-10-23 19:59:43,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 309. [2020-10-23 19:59:43,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2020-10-23 19:59:43,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 326 transitions. [2020-10-23 19:59:43,370 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 326 transitions. Word has length 175 [2020-10-23 19:59:43,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:59:43,371 INFO L481 AbstractCegarLoop]: Abstraction has 309 states and 326 transitions. [2020-10-23 19:59:43,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 19:59:43,371 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 326 transitions. [2020-10-23 19:59:43,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-10-23 19:59:43,374 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:59:43,375 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:59:43,375 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:59:43,375 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:59:43,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:59:43,376 INFO L82 PathProgramCache]: Analyzing trace with hash -577509487, now seen corresponding path program 1 times [2020-10-23 19:59:43,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:59:43,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [833373755] [2020-10-23 19:59:43,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:59:43,534 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 19:59:43,769 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-23 19:59:43,966 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 19:59:44,158 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 19:59:44,359 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 19:59:44,558 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 19:59:44,779 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 19:59:44,983 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 19:59:45,195 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-23 19:59:45,405 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 19:59:45,615 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-23 19:59:45,827 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 19:59:46,026 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 19:59:46,232 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 19:59:49,044 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 151 [2020-10-23 19:59:49,077 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 19:59:51,620 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 150 [2020-10-23 19:59:51,632 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 19:59:54,096 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 151 [2020-10-23 19:59:54,102 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 19:59:54,970 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 151 [2020-10-23 19:59:54,977 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 19:59:57,419 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 19:59:57,423 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 19:59:59,810 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 19:59:59,815 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:02,208 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 148 [2020-10-23 20:00:04,614 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:00:04,620 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:00:07,063 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:00:07,067 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:09,578 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:00:09,583 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:12,057 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:00:12,061 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:14,528 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:00:14,532 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:16,962 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:00:16,966 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:18,015 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:00:18,024 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:20,458 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:00:20,462 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:22,889 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:00:22,896 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:00:23,179 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:00:23,461 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:00:23,745 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:00:24,021 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:00:24,301 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:00:24,589 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:00:24,874 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:00:25,152 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:00:25,154 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:00:27,558 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2020-10-23 20:00:27,562 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:29,930 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:00:29,934 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:32,324 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:00:32,329 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:34,779 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2020-10-23 20:00:37,173 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:00:39,557 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:00:39,560 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:42,065 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2020-10-23 20:00:42,069 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:43,318 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2020-10-23 20:00:43,322 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:43,331 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:00:45,742 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:00:45,746 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:46,970 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:00:46,975 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:48,201 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:00:48,206 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:50,634 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:00:50,638 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:51,776 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:00:51,780 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:54,175 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:00:54,178 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:56,588 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:00:58,981 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:00:58,985 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:58,991 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:00:59,268 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:00:59,540 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:00:59,829 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:01:00,107 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:01:00,386 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:01:00,663 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:01:00,941 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:01:01,221 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:01:01,224 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:01:01,517 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:01:01,806 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:01:02,091 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:01:02,370 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:01:02,653 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:01:02,935 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:01:03,214 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:01:03,495 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:01:03,497 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:01:03,775 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-10-23 20:01:04,053 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-10-23 20:01:04,331 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2020-10-23 20:01:04,606 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:01:04,892 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:01:05,192 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:01:05,470 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2020-10-23 20:01:05,749 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:01:05,751 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:01:08,158 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:01:08,162 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:09,586 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:01:09,589 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:12,046 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:01:12,050 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:13,673 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:01:13,678 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:14,863 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:01:14,867 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:17,296 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:01:17,299 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:19,746 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:01:19,749 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:22,192 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:01:22,196 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:22,199 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:01:22,493 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:22,782 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:23,075 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:23,355 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:23,639 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:23,926 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:24,214 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:24,516 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:24,519 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:01:26,960 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:01:26,963 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:29,406 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:01:29,409 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:31,915 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:01:31,917 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:33,247 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:01:33,250 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:35,705 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:01:35,709 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:37,543 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:01:40,015 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:01:40,018 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:42,527 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:01:42,531 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:42,534 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:01:42,835 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:43,135 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:43,426 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:43,719 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:44,012 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:44,317 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:44,608 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:44,901 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:44,903 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:01:47,320 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2020-10-23 20:01:47,323 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:49,746 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 146 [2020-10-23 20:01:49,751 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:52,204 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:01:52,206 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:53,949 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 148 [2020-10-23 20:01:56,362 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2020-10-23 20:01:58,795 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2020-10-23 20:02:00,193 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:02:02,659 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:02:02,664 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:02:05,197 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 20:02:07,642 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 149 [2020-10-23 20:02:07,645 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:10,098 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 149 [2020-10-23 20:02:12,588 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 20:02:12,591 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:15,077 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 149 [2020-10-23 20:02:15,080 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:17,535 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 149 [2020-10-23 20:02:17,539 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:19,424 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 20:02:19,427 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:20,976 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 20:02:20,979 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:02:20,982 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:02:21,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:02:21,888 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:02:22,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:02:22,156 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:02:22,351 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:02:22,351 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:02:22,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:02:22,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:02:22 BoogieIcfgContainer [2020-10-23 20:02:22,394 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:02:22,396 INFO L168 Benchmark]: Toolchain (without parser) took 186424.24 ms. Allocated memory was 167.8 MB in the beginning and 442.5 MB in the end (delta: 274.7 MB). Free memory was 141.9 MB in the beginning and 153.7 MB in the end (delta: -11.8 MB). Peak memory consumption was 263.6 MB. Max. memory is 8.0 GB. [2020-10-23 20:02:22,399 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 167.8 MB. Free memory was 139.9 MB in the beginning and 139.9 MB in the end (delta: 82.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:02:22,405 INFO L168 Benchmark]: CACSL2BoogieTranslator took 578.26 ms. Allocated memory is still 167.8 MB. Free memory was 141.4 MB in the beginning and 121.3 MB in the end (delta: 20.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-23 20:02:22,405 INFO L168 Benchmark]: Boogie Preprocessor took 87.06 ms. Allocated memory is still 167.8 MB. Free memory was 121.3 MB in the beginning and 117.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:02:22,406 INFO L168 Benchmark]: RCFGBuilder took 1194.28 ms. Allocated memory was 167.8 MB in the beginning and 206.6 MB in the end (delta: 38.8 MB). Free memory was 117.5 MB in the beginning and 144.7 MB in the end (delta: -27.2 MB). Peak memory consumption was 28.8 MB. Max. memory is 8.0 GB. [2020-10-23 20:02:22,406 INFO L168 Benchmark]: TraceAbstraction took 184553.94 ms. Allocated memory was 206.6 MB in the beginning and 442.5 MB in the end (delta: 235.9 MB). Free memory was 144.7 MB in the beginning and 153.7 MB in the end (delta: -9.0 MB). Peak memory consumption was 227.4 MB. Max. memory is 8.0 GB. [2020-10-23 20:02:22,412 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 167.8 MB. Free memory was 139.9 MB in the beginning and 139.9 MB in the end (delta: 82.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 578.26 ms. Allocated memory is still 167.8 MB. Free memory was 141.4 MB in the beginning and 121.3 MB in the end (delta: 20.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 87.06 ms. Allocated memory is still 167.8 MB. Free memory was 121.3 MB in the beginning and 117.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1194.28 ms. Allocated memory was 167.8 MB in the beginning and 206.6 MB in the end (delta: 38.8 MB). Free memory was 117.5 MB in the beginning and 144.7 MB in the end (delta: -27.2 MB). Peak memory consumption was 28.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 184553.94 ms. Allocated memory was 206.6 MB in the beginning and 442.5 MB in the end (delta: 235.9 MB). Free memory was 144.7 MB in the beginning and 153.7 MB in the end (delta: -9.0 MB). Peak memory consumption was 227.4 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: [L42] int cleanupTimeShifts = 4; [L150] int waterLevel = 1; [L151] int methaneLevelCritical = 0; [L261] int pumpRunning = 0; [L262] int systemActive = 1; [L638] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L123] int retValue_acc ; [L124] int tmp ; [L128] FCALL select_helpers() [L129] FCALL select_features() [L130] CALL, EXPR valid_product() [L861] int retValue_acc ; [L864] retValue_acc = 1 [L865] return (retValue_acc); [L130] RET, EXPR valid_product() [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L134] FCALL setup() [L135] CALL runTest() [L114] CALL test() [L403] int splverifierCounter ; [L404] int tmp ; [L405] int tmp___0 ; [L406] int tmp___1 ; [L407] int tmp___2 ; [L410] splverifierCounter = 0 [L412] COND TRUE 1 [L414] COND TRUE splverifierCounter < 4 [L420] tmp = __VERIFIER_nondet_int() [L422] COND TRUE \read(tmp) [L424] CALL waterRise() [L168] COND TRUE waterLevel < 2 [L169] waterLevel = waterLevel + 1 [L424] RET waterRise() [L430] tmp___0 = __VERIFIER_nondet_int() [L432] COND FALSE !(\read(tmp___0)) [L440] tmp___2 = __VERIFIER_nondet_int() [L442] COND TRUE \read(tmp___2) [L444] CALL startSystem() [L397] systemActive = 1 [L444] RET startSystem() [L457] CALL timeShift() [L268] COND FALSE !(\read(pumpRunning)) [L275] COND TRUE \read(systemActive) [L277] CALL processEnvironment() [L297] int tmp ; [L300] COND FALSE !(\read(pumpRunning)) [L315] FCALL processEnvironment__wrappee__base() [L277] RET processEnvironment() [L283] CALL __utac_acc__Specification4_spec__1() [L233] int tmp ; [L234] int tmp___0 ; [L238] CALL, EXPR getWaterLevel() [L221] int retValue_acc ; [L224] retValue_acc = waterLevel [L225] return (retValue_acc); [L238] RET, EXPR getWaterLevel() [L238] tmp = getWaterLevel() [L240] COND FALSE !(tmp == 0) [L283] RET __utac_acc__Specification4_spec__1() [L457] RET timeShift() [L412] COND TRUE 1 [L414] COND TRUE splverifierCounter < 4 [L420] tmp = __VERIFIER_nondet_int() [L422] COND TRUE \read(tmp) [L424] CALL waterRise() [L168] COND TRUE waterLevel < 2 [L169] waterLevel = waterLevel + 1 [L424] RET waterRise() [L430] tmp___0 = __VERIFIER_nondet_int() [L432] COND FALSE !(\read(tmp___0)) [L440] tmp___2 = __VERIFIER_nondet_int() [L442] COND TRUE \read(tmp___2) [L444] CALL startSystem() [L397] systemActive = 1 [L444] RET startSystem() [L457] CALL timeShift() [L268] COND FALSE !(\read(pumpRunning)) [L275] COND TRUE \read(systemActive) [L277] CALL processEnvironment() [L297] int tmp ; [L300] COND FALSE !(\read(pumpRunning)) [L315] FCALL processEnvironment__wrappee__base() [L277] RET processEnvironment() [L283] CALL __utac_acc__Specification4_spec__1() [L233] int tmp ; [L234] int tmp___0 ; [L238] CALL, EXPR getWaterLevel() [L221] int retValue_acc ; [L224] retValue_acc = waterLevel [L225] return (retValue_acc); [L238] RET, EXPR getWaterLevel() [L238] tmp = getWaterLevel() [L240] COND TRUE tmp == 0 [L242] CALL, EXPR isPumpRunning() [L349] int retValue_acc ; [L352] retValue_acc = pumpRunning [L353] return (retValue_acc); [L242] RET, EXPR isPumpRunning() [L242] tmp___0 = isPumpRunning() [L244] COND TRUE \read(tmp___0) [L246] CALL __automaton_fail() [L874] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product06.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 601 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 184.4s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 21.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1007 SDtfs, 1999 SDslu, 2010 SDs, 0 SdLazy, 3649 SolverSat, 642 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 177 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 12.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=398occurred 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: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 454 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...