./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-numeric/MultCommutative-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db875b6-bcbc-4176-b68f-b403d336ee0d/bin/ukojak-d1pc8ZmBRL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db875b6-bcbc-4176-b68f-b403d336ee0d/bin/ukojak-d1pc8ZmBRL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db875b6-bcbc-4176-b68f-b403d336ee0d/bin/ukojak-d1pc8ZmBRL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db875b6-bcbc-4176-b68f-b403d336ee0d/bin/ukojak-d1pc8ZmBRL/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-numeric/MultCommutative-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db875b6-bcbc-4176-b68f-b403d336ee0d/bin/ukojak-d1pc8ZmBRL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db875b6-bcbc-4176-b68f-b403d336ee0d/bin/ukojak-d1pc8ZmBRL --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2f58e1f128e4dbefcdb138e1f7ef5e4260326da20e0bd376d80fe12a55b55920 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 08:08:16,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 08:08:16,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 08:08:16,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 08:08:16,305 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 08:08:16,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 08:08:16,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 08:08:16,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 08:08:16,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 08:08:16,314 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 08:08:16,315 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 08:08:16,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 08:08:16,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 08:08:16,319 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 08:08:16,321 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 08:08:16,323 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 08:08:16,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 08:08:16,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 08:08:16,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 08:08:16,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 08:08:16,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 08:08:16,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 08:08:16,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 08:08:16,345 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 08:08:16,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 08:08:16,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 08:08:16,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 08:08:16,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 08:08:16,358 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 08:08:16,359 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 08:08:16,360 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 08:08:16,361 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 08:08:16,363 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 08:08:16,366 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 08:08:16,368 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 08:08:16,368 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 08:08:16,369 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 08:08:16,370 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 08:08:16,370 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 08:08:16,371 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 08:08:16,372 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 08:08:16,373 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db875b6-bcbc-4176-b68f-b403d336ee0d/bin/ukojak-d1pc8ZmBRL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-11-25 08:08:16,420 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 08:08:16,420 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 08:08:16,422 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 08:08:16,422 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-25 08:08:16,423 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-25 08:08:16,423 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-25 08:08:16,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 08:08:16,424 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 08:08:16,424 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 08:08:16,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 08:08:16,426 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 08:08:16,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 08:08:16,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 08:08:16,426 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-25 08:08:16,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 08:08:16,427 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 08:08:16,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 08:08:16,427 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-25 08:08:16,428 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-25 08:08:16,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 08:08:16,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-25 08:08:16,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 08:08:16,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 08:08:16,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 08:08:16,437 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-25 08:08:16,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 08:08:16,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 08:08:16,439 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_4db875b6-bcbc-4176-b68f-b403d336ee0d/bin/ukojak-d1pc8ZmBRL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db875b6-bcbc-4176-b68f-b403d336ee0d/bin/ukojak-d1pc8ZmBRL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f58e1f128e4dbefcdb138e1f7ef5e4260326da20e0bd376d80fe12a55b55920 [2021-11-25 08:08:16,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 08:08:16,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 08:08:16,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 08:08:16,787 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 08:08:16,789 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 08:08:16,791 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db875b6-bcbc-4176-b68f-b403d336ee0d/bin/ukojak-d1pc8ZmBRL/../../sv-benchmarks/c/termination-numeric/MultCommutative-1.c [2021-11-25 08:08:16,910 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db875b6-bcbc-4176-b68f-b403d336ee0d/bin/ukojak-d1pc8ZmBRL/data/81b230e5a/6d8d08590a7b442c9b9721bef313e942/FLAG5c44c3e57 [2021-11-25 08:08:17,351 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 08:08:17,351 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db875b6-bcbc-4176-b68f-b403d336ee0d/sv-benchmarks/c/termination-numeric/MultCommutative-1.c [2021-11-25 08:08:17,359 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db875b6-bcbc-4176-b68f-b403d336ee0d/bin/ukojak-d1pc8ZmBRL/data/81b230e5a/6d8d08590a7b442c9b9721bef313e942/FLAG5c44c3e57 [2021-11-25 08:08:17,760 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db875b6-bcbc-4176-b68f-b403d336ee0d/bin/ukojak-d1pc8ZmBRL/data/81b230e5a/6d8d08590a7b442c9b9721bef313e942 [2021-11-25 08:08:17,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 08:08:17,766 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 08:08:17,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 08:08:17,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 08:08:17,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 08:08:17,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:08:17" (1/1) ... [2021-11-25 08:08:17,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@609eda89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:08:17, skipping insertion in model container [2021-11-25 08:08:17,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:08:17" (1/1) ... [2021-11-25 08:08:17,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 08:08:17,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 08:08:17,964 WARN L230 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_4db875b6-bcbc-4176-b68f-b403d336ee0d/sv-benchmarks/c/termination-numeric/MultCommutative-1.c[1008,1021] [2021-11-25 08:08:17,965 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 08:08:17,973 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 08:08:17,989 WARN L230 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_4db875b6-bcbc-4176-b68f-b403d336ee0d/sv-benchmarks/c/termination-numeric/MultCommutative-1.c[1008,1021] [2021-11-25 08:08:17,990 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 08:08:18,001 INFO L208 MainTranslator]: Completed translation [2021-11-25 08:08:18,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:08:18 WrapperNode [2021-11-25 08:08:18,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 08:08:18,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 08:08:18,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 08:08:18,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 08:08:18,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:08:18" (1/1) ... [2021-11-25 08:08:18,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:08:18" (1/1) ... [2021-11-25 08:08:18,039 INFO L137 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 36 [2021-11-25 08:08:18,040 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 08:08:18,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 08:08:18,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 08:08:18,041 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 08:08:18,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:08:18" (1/1) ... [2021-11-25 08:08:18,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:08:18" (1/1) ... [2021-11-25 08:08:18,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:08:18" (1/1) ... [2021-11-25 08:08:18,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:08:18" (1/1) ... [2021-11-25 08:08:18,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:08:18" (1/1) ... [2021-11-25 08:08:18,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:08:18" (1/1) ... [2021-11-25 08:08:18,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:08:18" (1/1) ... [2021-11-25 08:08:18,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 08:08:18,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 08:08:18,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 08:08:18,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 08:08:18,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:08:18" (1/1) ... [2021-11-25 08:08:18,075 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-25 08:08:18,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db875b6-bcbc-4176-b68f-b403d336ee0d/bin/ukojak-d1pc8ZmBRL/z3 [2021-11-25 08:08:18,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db875b6-bcbc-4176-b68f-b403d336ee0d/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-25 08:08:18,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db875b6-bcbc-4176-b68f-b403d336ee0d/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-25 08:08:18,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 08:08:18,151 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2021-11-25 08:08:18,152 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2021-11-25 08:08:18,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 08:08:18,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 08:08:18,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 08:08:18,213 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 08:08:18,215 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 08:08:18,382 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 08:08:18,404 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 08:08:18,404 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 08:08:18,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:08:18 BoogieIcfgContainer [2021-11-25 08:08:18,407 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 08:08:18,408 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-25 08:08:18,408 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-25 08:08:18,419 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-25 08:08:18,420 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:08:18" (1/1) ... [2021-11-25 08:08:18,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 08:08:18,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 08:08:18,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 30 states and 36 transitions. [2021-11-25 08:08:18,494 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2021-11-25 08:08:18,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 08:08:18,496 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 08:08:18,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 08:08:18,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 08:08:18,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 08:08:18,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 08:08:18,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 32 states and 40 transitions. [2021-11-25 08:08:18,786 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2021-11-25 08:08:18,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 08:08:18,790 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 08:08:18,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 08:08:18,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 08:08:18,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 08:08:19,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 08:08:19,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 36 states and 47 transitions. [2021-11-25 08:08:19,140 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2021-11-25 08:08:19,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-25 08:08:19,141 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 08:08:19,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 08:08:19,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 08:08:19,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 08:08:19,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 08:08:19,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 35 states and 46 transitions. [2021-11-25 08:08:19,247 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 46 transitions. [2021-11-25 08:08:19,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 08:08:19,250 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 08:08:19,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 08:08:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 08:08:19,340 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 08:08:19,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 08:08:19,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 38 states and 51 transitions. [2021-11-25 08:08:19,533 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 51 transitions. [2021-11-25 08:08:19,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-25 08:08:19,535 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 08:08:19,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 08:08:19,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 08:08:19,637 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 08:08:19,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 08:08:19,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 38 states and 49 transitions. [2021-11-25 08:08:19,973 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 49 transitions. [2021-11-25 08:08:19,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-25 08:08:19,978 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 08:08:19,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 08:08:20,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 08:08:20,050 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 08:08:20,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 08:08:20,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 37 states and 48 transitions. [2021-11-25 08:08:20,082 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2021-11-25 08:08:20,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-25 08:08:20,084 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 08:08:20,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 08:08:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 08:08:20,213 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 08:08:20,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 08:08:20,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 39 states and 51 transitions. [2021-11-25 08:08:20,313 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 51 transitions. [2021-11-25 08:08:20,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-25 08:08:20,317 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 08:08:20,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 08:08:20,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 08:08:20,395 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 08:08:20,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 08:08:20,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 39 states and 50 transitions. [2021-11-25 08:08:20,783 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2021-11-25 08:08:20,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-25 08:08:20,784 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 08:08:20,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 08:08:20,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 08:08:20,864 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 08:08:21,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 08:08:21,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 22 states and 26 transitions. [2021-11-25 08:08:21,044 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2021-11-25 08:08:21,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-25 08:08:21,045 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 08:08:21,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 08:08:21,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 08:08:21,224 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 08:08:21,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 08:08:21,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 32 states and 43 transitions. [2021-11-25 08:08:21,968 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2021-11-25 08:08:21,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-25 08:08:21,969 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 08:08:21,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 08:08:22,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 08:08:22,193 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 08:08:23,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 08:08:23,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 41 states and 57 transitions. [2021-11-25 08:08:23,111 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 57 transitions. [2021-11-25 08:08:23,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-25 08:08:23,113 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 08:08:23,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 08:08:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 08:08:23,517 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 08:08:24,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 08:08:24,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 45 states and 73 transitions. [2021-11-25 08:08:24,495 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 73 transitions. [2021-11-25 08:08:24,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-25 08:08:24,497 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 08:08:24,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 08:08:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 08:08:24,515 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 08:08:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 08:08:24,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 08:08:24,576 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 08:08:24,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 08:08:24,603 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 13 iterations. [2021-11-25 08:08:24,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 08:08:24 ImpRootNode [2021-11-25 08:08:24,642 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-25 08:08:24,642 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 08:08:24,643 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 08:08:24,643 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 08:08:24,643 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:08:18" (3/4) ... [2021-11-25 08:08:24,646 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-25 08:08:24,704 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db875b6-bcbc-4176-b68f-b403d336ee0d/bin/ukojak-d1pc8ZmBRL/witness.graphml [2021-11-25 08:08:24,704 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 08:08:24,705 INFO L158 Benchmark]: Toolchain (without parser) took 6939.23ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 73.0MB in the beginning and 113.0MB in the end (delta: -40.0MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2021-11-25 08:08:24,706 INFO L158 Benchmark]: CDTParser took 0.59ms. Allocated memory is still 107.0MB. Free memory was 80.0MB in the beginning and 80.0MB in the end (delta: 26.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 08:08:24,707 INFO L158 Benchmark]: CACSL2BoogieTranslator took 235.31ms. Allocated memory is still 107.0MB. Free memory was 72.7MB in the beginning and 83.5MB in the end (delta: -10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 08:08:24,708 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.30ms. Allocated memory is still 107.0MB. Free memory was 83.5MB in the beginning and 81.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 08:08:24,709 INFO L158 Benchmark]: Boogie Preprocessor took 16.47ms. Allocated memory is still 107.0MB. Free memory was 81.8MB in the beginning and 80.9MB in the end (delta: 944.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 08:08:24,710 INFO L158 Benchmark]: RCFGBuilder took 349.92ms. Allocated memory is still 107.0MB. Free memory was 80.9MB in the beginning and 70.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-25 08:08:24,711 INFO L158 Benchmark]: CodeCheck took 6233.70ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 70.4MB in the beginning and 115.1MB in the end (delta: -44.7MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2021-11-25 08:08:24,712 INFO L158 Benchmark]: Witness Printer took 61.77ms. Allocated memory is still 157.3MB. Free memory was 115.1MB in the beginning and 113.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 08:08:24,718 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 30 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 6.2s, OverallIterations: 13, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 683 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 364 mSDsluCounter, 460 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 138 mSDsCounter, 482 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1714 IncrementalHoareTripleChecker+Invalid, 2196 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 482 mSolverCounterUnsat, 322 mSDtfsCounter, 1714 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1624 GetRequests, 1461 SyntacticMatches, 39 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5868 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 205 NumberOfCodeBlocks, 205 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 389 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 22/37 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 24]: integer overflow possible integer overflow possible We found a FailurePath: [L28] int m = __VERIFIER_nondet_int(); [L29] COND FALSE !(m < 0) [L32] int n = __VERIFIER_nondet_int(); [L33] COND FALSE !(n < 0) VAL [m=2147483647, n=3] [L36] CALL mult(m, n) VAL [\old(m)=3, \old(n)=2147483647] [L18] COND FALSE !(m < 0) VAL [\old(m)=3, \old(n)=2147483647, m=3, n=2147483647] [L21] COND FALSE !(m == 0) VAL [\old(m)=3, \old(n)=2147483647, m=3, n=2147483647] [L24] EXPR m - 1 VAL [\old(m)=3, \old(n)=2147483647, m=3, n=2147483647] [L24] CALL, EXPR mult(n, m - 1) VAL [\old(m)=2, \old(n)=2147483647] [L18] COND FALSE !(m < 0) VAL [\old(m)=2, \old(n)=2147483647, m=2, n=2147483647] [L21] COND FALSE !(m == 0) VAL [\old(m)=2, \old(n)=2147483647, m=2, n=2147483647] [L24] EXPR m - 1 VAL [\old(m)=2, \old(n)=2147483647, m=2, n=2147483647] [L24] CALL, EXPR mult(n, m - 1) VAL [\old(m)=1, \old(n)=2147483647] [L18] COND FALSE !(m < 0) VAL [\old(m)=1, \old(n)=2147483647, m=1, n=2147483647] [L21] COND FALSE !(m == 0) VAL [\old(m)=1, \old(n)=2147483647, m=1, n=2147483647] [L24] EXPR m - 1 VAL [\old(m)=1, \old(n)=2147483647, m=1, n=2147483647] [L24] CALL, EXPR mult(n, m - 1) VAL [\old(m)=0, \old(n)=2147483647] [L18] COND FALSE !(m < 0) VAL [\old(m)=0, \old(n)=2147483647, m=0, n=2147483647] [L21] COND TRUE m == 0 [L22] return 0; VAL [\old(m)=0, \old(n)=2147483647, \result=0, m=0, n=2147483647] [L24] RET, EXPR mult(n, m - 1) VAL [\old(m)=1, \old(n)=2147483647, m=1, mult(n, m - 1)=0, n=2147483647] [L24] EXPR n + mult(n, m - 1) [L24] return n + mult(n, m - 1); [L24] RET, EXPR mult(n, m - 1) VAL [\old(m)=2, \old(n)=2147483647, m=2, mult(n, m - 1)=2147483647, n=2147483647] [L24] n + mult(n, m - 1) VAL [\old(m)=2, \old(n)=2147483647, m=2, mult(n, m - 1)=2147483647, n=2147483647] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59ms. Allocated memory is still 107.0MB. Free memory was 80.0MB in the beginning and 80.0MB in the end (delta: 26.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 235.31ms. Allocated memory is still 107.0MB. Free memory was 72.7MB in the beginning and 83.5MB in the end (delta: -10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.30ms. Allocated memory is still 107.0MB. Free memory was 83.5MB in the beginning and 81.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.47ms. Allocated memory is still 107.0MB. Free memory was 81.8MB in the beginning and 80.9MB in the end (delta: 944.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 349.92ms. Allocated memory is still 107.0MB. Free memory was 80.9MB in the beginning and 70.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 6233.70ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 70.4MB in the beginning and 115.1MB in the end (delta: -44.7MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * Witness Printer took 61.77ms. Allocated memory is still 157.3MB. Free memory was 115.1MB in the beginning and 113.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-25 08:08:24,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4db875b6-bcbc-4176-b68f-b403d336ee0d/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)