./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id_b5_o10-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13879112-9355-4922-9fdd-8e32b0998539/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13879112-9355-4922-9fdd-8e32b0998539/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13879112-9355-4922-9fdd-8e32b0998539/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13879112-9355-4922-9fdd-8e32b0998539/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_b5_o10-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13879112-9355-4922-9fdd-8e32b0998539/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13879112-9355-4922-9fdd-8e32b0998539/bin/uautomizer-hJ6jxDFKc3 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2fbe8cf5b50674394627f719f6766631caa7190e ................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 20:20:14,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 20:20:14,091 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 20:20:14,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 20:20:14,142 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 20:20:14,146 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 20:20:14,148 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 20:20:14,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 20:20:14,154 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 20:20:14,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 20:20:14,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 20:20:14,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 20:20:14,164 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 20:20:14,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 20:20:14,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 20:20:14,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 20:20:14,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 20:20:14,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 20:20:14,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 20:20:14,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 20:20:14,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 20:20:14,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 20:20:14,196 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 20:20:14,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 20:20:14,206 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 20:20:14,206 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 20:20:14,207 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 20:20:14,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 20:20:14,208 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 20:20:14,209 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 20:20:14,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 20:20:14,210 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 20:20:14,211 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 20:20:14,212 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 20:20:14,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 20:20:14,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 20:20:14,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 20:20:14,214 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 20:20:14,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 20:20:14,215 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 20:20:14,216 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 20:20:14,217 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13879112-9355-4922-9fdd-8e32b0998539/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-15 20:20:14,244 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 20:20:14,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 20:20:14,244 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 20:20:14,245 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 20:20:14,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 20:20:14,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 20:20:14,246 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 20:20:14,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 20:20:14,247 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 20:20:14,247 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 20:20:14,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 20:20:14,247 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 20:20:14,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 20:20:14,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 20:20:14,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 20:20:14,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 20:20:14,249 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-15 20:20:14,249 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 20:20:14,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 20:20:14,249 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 20:20:14,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 20:20:14,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 20:20:14,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 20:20:14,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 20:20:14,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 20:20:14,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 20:20:14,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 20:20:14,251 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 20:20:14,251 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 20:20:14,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-15 20:20:14,252 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 20:20:14,252 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 20:20:14,252 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13879112-9355-4922-9fdd-8e32b0998539/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13879112-9355-4922-9fdd-8e32b0998539/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2fbe8cf5b50674394627f719f6766631caa7190e [2021-10-15 20:20:14,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 20:20:14,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 20:20:14,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 20:20:14,539 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 20:20:14,541 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 20:20:14,542 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13879112-9355-4922-9fdd-8e32b0998539/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/recursive-simple/id_b5_o10-1.c [2021-10-15 20:20:14,615 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13879112-9355-4922-9fdd-8e32b0998539/bin/uautomizer-hJ6jxDFKc3/data/96c9ef736/4c53d65e4c9b4cdfab0d12c513085e57/FLAGc6c79f44c [2021-10-15 20:20:15,032 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 20:20:15,033 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13879112-9355-4922-9fdd-8e32b0998539/sv-benchmarks/c/recursive-simple/id_b5_o10-1.c [2021-10-15 20:20:15,039 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13879112-9355-4922-9fdd-8e32b0998539/bin/uautomizer-hJ6jxDFKc3/data/96c9ef736/4c53d65e4c9b4cdfab0d12c513085e57/FLAGc6c79f44c [2021-10-15 20:20:15,435 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13879112-9355-4922-9fdd-8e32b0998539/bin/uautomizer-hJ6jxDFKc3/data/96c9ef736/4c53d65e4c9b4cdfab0d12c513085e57 [2021-10-15 20:20:15,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 20:20:15,439 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 20:20:15,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 20:20:15,448 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 20:20:15,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 20:20:15,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:20:15" (1/1) ... [2021-10-15 20:20:15,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b73c1f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:20:15, skipping insertion in model container [2021-10-15 20:20:15,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:20:15" (1/1) ... [2021-10-15 20:20:15,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 20:20:15,473 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 20:20:15,613 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13879112-9355-4922-9fdd-8e32b0998539/sv-benchmarks/c/recursive-simple/id_b5_o10-1.c[516,529] [2021-10-15 20:20:15,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:20:15,640 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 20:20:15,656 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13879112-9355-4922-9fdd-8e32b0998539/sv-benchmarks/c/recursive-simple/id_b5_o10-1.c[516,529] [2021-10-15 20:20:15,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:20:15,667 INFO L208 MainTranslator]: Completed translation [2021-10-15 20:20:15,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:20:15 WrapperNode [2021-10-15 20:20:15,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 20:20:15,669 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 20:20:15,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 20:20:15,669 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 20:20:15,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:20:15" (1/1) ... [2021-10-15 20:20:15,683 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:20:15" (1/1) ... [2021-10-15 20:20:15,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 20:20:15,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 20:20:15,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 20:20:15,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 20:20:15,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:20:15" (1/1) ... [2021-10-15 20:20:15,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:20:15" (1/1) ... [2021-10-15 20:20:15,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:20:15" (1/1) ... [2021-10-15 20:20:15,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:20:15" (1/1) ... [2021-10-15 20:20:15,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:20:15" (1/1) ... [2021-10-15 20:20:15,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:20:15" (1/1) ... [2021-10-15 20:20:15,717 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:20:15" (1/1) ... [2021-10-15 20:20:15,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 20:20:15,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 20:20:15,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 20:20:15,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 20:20:15,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:20:15" (1/1) ... [2021-10-15 20:20:15,728 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 20:20:15,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13879112-9355-4922-9fdd-8e32b0998539/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:15,766 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13879112-9355-4922-9fdd-8e32b0998539/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:15,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13879112-9355-4922-9fdd-8e32b0998539/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 20:20:15,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 20:20:15,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 20:20:15,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 20:20:15,815 INFO L130 BoogieDeclarations]: Found specification of procedure id [2021-10-15 20:20:15,815 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2021-10-15 20:20:15,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 20:20:16,005 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 20:20:16,006 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-15 20:20:16,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:20:16 BoogieIcfgContainer [2021-10-15 20:20:16,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 20:20:16,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 20:20:16,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 20:20:16,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 20:20:16,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 08:20:15" (1/3) ... [2021-10-15 20:20:16,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eafcae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:20:16, skipping insertion in model container [2021-10-15 20:20:16,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:20:15" (2/3) ... [2021-10-15 20:20:16,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eafcae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:20:16, skipping insertion in model container [2021-10-15 20:20:16,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:20:16" (3/3) ... [2021-10-15 20:20:16,016 INFO L111 eAbstractionObserver]: Analyzing ICFG id_b5_o10-1.c [2021-10-15 20:20:16,021 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 20:20:16,022 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-15 20:20:16,068 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 20:20:16,075 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-15 20:20:16,076 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-15 20:20:16,091 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 16 states have (on average 1.4375) internal successors, (23), 20 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-15 20:20:16,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-15 20:20:16,096 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 20:20:16,097 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-15 20:20:16,097 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-10-15 20:20:16,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:20:16,103 INFO L82 PathProgramCache]: Analyzing trace with hash 890408432, now seen corresponding path program 1 times [2021-10-15 20:20:16,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:20:16,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149687110] [2021-10-15 20:20:16,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:20:16,113 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:20:16,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:20:16,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:20:16,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:20:16,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149687110] [2021-10-15 20:20:16,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149687110] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:20:16,299 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:20:16,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-15 20:20:16,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260158931] [2021-10-15 20:20:16,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-15 20:20:16,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:20:16,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-15 20:20:16,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-15 20:20:16,335 INFO L87 Difference]: Start difference. First operand has 24 states, 16 states have (on average 1.4375) internal successors, (23), 20 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:20:16,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:20:16,436 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2021-10-15 20:20:16,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-15 20:20:16,438 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-15 20:20:16,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-15 20:20:16,445 INFO L225 Difference]: With dead ends: 27 [2021-10-15 20:20:16,446 INFO L226 Difference]: Without dead ends: 17 [2021-10-15 20:20:16,448 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.5ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-15 20:20:16,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-15 20:20:16,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-15 20:20:16,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 14 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-15 20:20:16,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2021-10-15 20:20:16,480 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 6 [2021-10-15 20:20:16,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-15 20:20:16,480 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-10-15 20:20:16,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:20:16,481 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2021-10-15 20:20:16,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-15 20:20:16,482 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 20:20:16,482 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:20:16,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-15 20:20:16,483 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-10-15 20:20:16,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:20:16,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1832857669, now seen corresponding path program 1 times [2021-10-15 20:20:16,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:20:16,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391080128] [2021-10-15 20:20:16,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:20:16,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:20:16,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:20:16,507 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:20:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:20:16,544 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:20:16,544 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-15 20:20:16,546 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 20:20:16,548 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 20:20:16,548 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 20:20:16,549 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 20:20:16,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-15 20:20:16,555 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 20:20:16,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 08:20:16 BoogieIcfgContainer [2021-10-15 20:20:16,576 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 20:20:16,576 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 20:20:16,576 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 20:20:16,577 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 20:20:16,577 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:20:16" (3/4) ... [2021-10-15 20:20:16,579 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-15 20:20:16,613 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13879112-9355-4922-9fdd-8e32b0998539/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 20:20:16,613 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 20:20:16,615 INFO L168 Benchmark]: Toolchain (without parser) took 1175.24 ms. Allocated memory is still 115.3 MB. Free memory was 75.4 MB in the beginning and 52.0 MB in the end (delta: 23.4 MB). Peak memory consumption was 20.6 MB. Max. memory is 16.1 GB. [2021-10-15 20:20:16,615 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 115.3 MB. Free memory is still 91.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:20:16,616 INFO L168 Benchmark]: CACSL2BoogieTranslator took 221.13 ms. Allocated memory is still 115.3 MB. Free memory was 75.2 MB in the beginning and 90.7 MB in the end (delta: -15.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 20:20:16,617 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.68 ms. Allocated memory is still 115.3 MB. Free memory was 90.2 MB in the beginning and 89.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 20:20:16,617 INFO L168 Benchmark]: Boogie Preprocessor took 18.09 ms. Allocated memory is still 115.3 MB. Free memory was 89.1 MB in the beginning and 88.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:20:16,618 INFO L168 Benchmark]: RCFGBuilder took 288.73 ms. Allocated memory is still 115.3 MB. Free memory was 88.0 MB in the beginning and 78.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 20:20:16,619 INFO L168 Benchmark]: TraceAbstraction took 566.29 ms. Allocated memory is still 115.3 MB. Free memory was 78.1 MB in the beginning and 53.5 MB in the end (delta: 24.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-15 20:20:16,619 INFO L168 Benchmark]: Witness Printer took 36.80 ms. Allocated memory is still 115.3 MB. Free memory was 53.5 MB in the beginning and 52.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:20:16,622 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 115.3 MB. Free memory is still 91.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 221.13 ms. Allocated memory is still 115.3 MB. Free memory was 75.2 MB in the beginning and 90.7 MB in the end (delta: -15.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.68 ms. Allocated memory is still 115.3 MB. Free memory was 90.2 MB in the beginning and 89.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.09 ms. Allocated memory is still 115.3 MB. Free memory was 89.1 MB in the beginning and 88.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 288.73 ms. Allocated memory is still 115.3 MB. Free memory was 88.0 MB in the beginning and 78.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 566.29 ms. Allocated memory is still 115.3 MB. Free memory was 78.1 MB in the beginning and 53.5 MB in the end (delta: 24.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 36.80 ms. Allocated memory is still 115.3 MB. Free memory was 53.5 MB in the beginning and 52.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 8]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int input = __VERIFIER_nondet_int(); [L15] CALL id(input) VAL [\old(x)=-2147483648] [L7] COND FALSE !(x==0) VAL [\old(x)=-2147483648, x=-2147483648] [L8] x-1 VAL [\old(x)=-2147483648, x=-2147483648] - UnprovableResult [Line: 8]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 8]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 8]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 487.4ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 9.0ms, AutomataDifference: 141.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 17 SDtfs, 31 SDslu, 25 SDs, 0 SdLazy, 19 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 34.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 18.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.3ms SsaConstructionTime, 46.0ms SatisfiabilityAnalysisTime, 84.7ms InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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! [2021-10-15 20:20:16,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13879112-9355-4922-9fdd-8e32b0998539/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...