./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.12.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_554cbbef-834f-4b15-89a5-cb6a0a9639c3/bin/ukojak-fKGseLULKY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_554cbbef-834f-4b15-89a5-cb6a0a9639c3/bin/ukojak-fKGseLULKY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_554cbbef-834f-4b15-89a5-cb6a0a9639c3/bin/ukojak-fKGseLULKY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_554cbbef-834f-4b15-89a5-cb6a0a9639c3/bin/ukojak-fKGseLULKY/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.12.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_554cbbef-834f-4b15-89a5-cb6a0a9639c3/bin/ukojak-fKGseLULKY/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_554cbbef-834f-4b15-89a5-cb6a0a9639c3/bin/ukojak-fKGseLULKY --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 f299f7e43971e739d4799ece224b61839f7f06e4 ............................................................................................................................................................................................................... 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-4e77c04 [2021-10-13 04:44:35,967 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 04:44:35,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 04:44:35,998 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 04:44:35,999 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 04:44:36,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 04:44:36,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 04:44:36,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 04:44:36,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 04:44:36,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 04:44:36,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 04:44:36,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 04:44:36,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 04:44:36,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 04:44:36,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 04:44:36,015 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 04:44:36,016 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 04:44:36,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 04:44:36,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 04:44:36,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 04:44:36,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 04:44:36,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 04:44:36,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 04:44:36,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 04:44:36,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 04:44:36,031 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 04:44:36,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 04:44:36,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 04:44:36,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 04:44:36,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 04:44:36,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 04:44:36,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 04:44:36,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 04:44:36,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 04:44:36,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 04:44:36,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 04:44:36,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 04:44:36,041 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 04:44:36,041 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 04:44:36,042 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 04:44:36,043 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 04:44:36,044 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_554cbbef-834f-4b15-89a5-cb6a0a9639c3/bin/ukojak-fKGseLULKY/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-10-13 04:44:36,077 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 04:44:36,077 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 04:44:36,078 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 04:44:36,078 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-13 04:44:36,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 04:44:36,079 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 04:44:36,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 04:44:36,080 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 04:44:36,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 04:44:36,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 04:44:36,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 04:44:36,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 04:44:36,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 04:44:36,081 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 04:44:36,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 04:44:36,082 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 04:44:36,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 04:44:36,082 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-13 04:44:36,082 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-13 04:44:36,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 04:44:36,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 04:44:36,083 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 04:44:36,083 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 04:44:36,084 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 04:44:36,084 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-13 04:44:36,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 04:44:36,084 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 04:44:36,087 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_554cbbef-834f-4b15-89a5-cb6a0a9639c3/bin/ukojak-fKGseLULKY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_554cbbef-834f-4b15-89a5-cb6a0a9639c3/bin/ukojak-fKGseLULKY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f299f7e43971e739d4799ece224b61839f7f06e4 [2021-10-13 04:44:36,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 04:44:36,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 04:44:36,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 04:44:36,388 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 04:44:36,389 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 04:44:36,391 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_554cbbef-834f-4b15-89a5-cb6a0a9639c3/bin/ukojak-fKGseLULKY/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.12.c [2021-10-13 04:44:36,464 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_554cbbef-834f-4b15-89a5-cb6a0a9639c3/bin/ukojak-fKGseLULKY/data/81b961ec9/a0fab57a906f46ae919fe9a872ee68ba/FLAGb84e7a8f6 [2021-10-13 04:44:36,874 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 04:44:36,874 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_554cbbef-834f-4b15-89a5-cb6a0a9639c3/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.12.c [2021-10-13 04:44:36,880 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_554cbbef-834f-4b15-89a5-cb6a0a9639c3/bin/ukojak-fKGseLULKY/data/81b961ec9/a0fab57a906f46ae919fe9a872ee68ba/FLAGb84e7a8f6 [2021-10-13 04:44:37,285 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_554cbbef-834f-4b15-89a5-cb6a0a9639c3/bin/ukojak-fKGseLULKY/data/81b961ec9/a0fab57a906f46ae919fe9a872ee68ba [2021-10-13 04:44:37,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 04:44:37,292 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 04:44:37,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 04:44:37,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 04:44:37,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 04:44:37,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:44:37" (1/1) ... [2021-10-13 04:44:37,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cf5e444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:44:37, skipping insertion in model container [2021-10-13 04:44:37,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:44:37" (1/1) ... [2021-10-13 04:44:37,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 04:44:37,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 04:44:37,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 04:44:37,464 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 04:44:37,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 04:44:37,515 INFO L208 MainTranslator]: Completed translation [2021-10-13 04:44:37,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:44:37 WrapperNode [2021-10-13 04:44:37,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 04:44:37,520 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 04:44:37,521 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 04:44:37,521 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 04:44:37,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:44:37" (1/1) ... [2021-10-13 04:44:37,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:44:37" (1/1) ... [2021-10-13 04:44:37,557 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 04:44:37,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 04:44:37,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 04:44:37,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 04:44:37,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:44:37" (1/1) ... [2021-10-13 04:44:37,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:44:37" (1/1) ... [2021-10-13 04:44:37,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:44:37" (1/1) ... [2021-10-13 04:44:37,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:44:37" (1/1) ... [2021-10-13 04:44:37,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:44:37" (1/1) ... [2021-10-13 04:44:37,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:44:37" (1/1) ... [2021-10-13 04:44:37,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:44:37" (1/1) ... [2021-10-13 04:44:37,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 04:44:37,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 04:44:37,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 04:44:37,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 04:44:37,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:44:37" (1/1) ... [2021-10-13 04:44:37,595 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 04:44:37,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_554cbbef-834f-4b15-89a5-cb6a0a9639c3/bin/ukojak-fKGseLULKY/z3 [2021-10-13 04:44:37,623 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_554cbbef-834f-4b15-89a5-cb6a0a9639c3/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-13 04:44:37,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_554cbbef-834f-4b15-89a5-cb6a0a9639c3/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-13 04:44:37,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 04:44:37,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 04:44:37,821 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 04:44:37,821 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-13 04:44:37,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:44:37 BoogieIcfgContainer [2021-10-13 04:44:37,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 04:44:37,825 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-13 04:44:37,825 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-13 04:44:37,836 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-13 04:44:37,837 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:44:37" (1/1) ... [2021-10-13 04:44:37,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 04:44:37,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:44:37,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-10-13 04:44:37,877 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-10-13 04:44:37,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 04:44:37,880 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:44:37,881 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:44:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:44:37,952 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 04:44:37,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:44:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:44:37,985 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 04:44:37,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:44:37,995 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2021-10-13 04:44:38,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.10 04:44:38 ImpRootNode [2021-10-13 04:44:38,011 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-13 04:44:38,011 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 04:44:38,012 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 04:44:38,012 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 04:44:38,012 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:44:37" (3/4) ... [2021-10-13 04:44:38,014 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 04:44:38,047 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_554cbbef-834f-4b15-89a5-cb6a0a9639c3/bin/ukojak-fKGseLULKY/witness.graphml [2021-10-13 04:44:38,048 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 04:44:38,050 INFO L168 Benchmark]: Toolchain (without parser) took 756.96 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 50.8 MB in the beginning and 67.1 MB in the end (delta: -16.2 MB). Peak memory consumption was 3.6 MB. Max. memory is 16.1 GB. [2021-10-13 04:44:38,050 INFO L168 Benchmark]: CDTParser took 1.42 ms. Allocated memory is still 88.1 MB. Free memory is still 67.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:44:38,052 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.05 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 50.6 MB in the beginning and 87.8 MB in the end (delta: -37.1 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-10-13 04:44:38,052 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.15 ms. Allocated memory is still 111.1 MB. Free memory was 87.8 MB in the beginning and 86.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:44:38,053 INFO L168 Benchmark]: Boogie Preprocessor took 25.88 ms. Allocated memory is still 111.1 MB. Free memory was 86.4 MB in the beginning and 85.7 MB in the end (delta: 742.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 04:44:38,054 INFO L168 Benchmark]: RCFGBuilder took 238.65 ms. Allocated memory is still 111.1 MB. Free memory was 85.5 MB in the beginning and 77.1 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 04:44:38,055 INFO L168 Benchmark]: CodeCheck took 185.86 ms. Allocated memory is still 111.1 MB. Free memory was 77.1 MB in the beginning and 68.7 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 04:44:38,056 INFO L168 Benchmark]: Witness Printer took 36.22 ms. Allocated memory is still 111.1 MB. Free memory was 68.4 MB in the beginning and 67.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:44:38,060 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 1 procedures, 11 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 139.6ms, OverallIterations: 1, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 1.2ms SsaConstructionTime, 5.5ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 28]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, y, oldx; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] COND TRUE x < 5 [L27] oldx = x [L28] oldx - y * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.42 ms. Allocated memory is still 88.1 MB. Free memory is still 67.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 226.05 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 50.6 MB in the beginning and 87.8 MB in the end (delta: -37.1 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.15 ms. Allocated memory is still 111.1 MB. Free memory was 87.8 MB in the beginning and 86.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.88 ms. Allocated memory is still 111.1 MB. Free memory was 86.4 MB in the beginning and 85.7 MB in the end (delta: 742.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 238.65 ms. Allocated memory is still 111.1 MB. Free memory was 85.5 MB in the beginning and 77.1 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * CodeCheck took 185.86 ms. Allocated memory is still 111.1 MB. Free memory was 77.1 MB in the beginning and 68.7 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Witness Printer took 36.22 ms. Allocated memory is still 111.1 MB. Free memory was 68.4 MB in the beginning and 67.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 04:44:38,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_554cbbef-834f-4b15-89a5-cb6a0a9639c3/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...