./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.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_a472d883-4d12-4d97-9d95-a2bfa184ce1d/bin/ukojak-fKGseLULKY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a472d883-4d12-4d97-9d95-a2bfa184ce1d/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_a472d883-4d12-4d97-9d95-a2bfa184ce1d/bin/ukojak-fKGseLULKY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a472d883-4d12-4d97-9d95-a2bfa184ce1d/bin/ukojak-fKGseLULKY/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a472d883-4d12-4d97-9d95-a2bfa184ce1d/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_a472d883-4d12-4d97-9d95-a2bfa184ce1d/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 d3ded6f4470c26b608997f650ebe66ef1cf6f845 ..................................................................................................................................................................................................................................... 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 04:14:21,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 04:14:21,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 04:14:21,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 04:14:21,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 04:14:21,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 04:14:21,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 04:14:21,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 04:14:21,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 04:14:21,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 04:14:21,424 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 04:14:21,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 04:14:21,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 04:14:21,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 04:14:21,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 04:14:21,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 04:14:21,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 04:14:21,439 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 04:14:21,441 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 04:14:21,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 04:14:21,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 04:14:21,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 04:14:21,456 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 04:14:21,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 04:14:21,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 04:14:21,463 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 04:14:21,464 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 04:14:21,465 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 04:14:21,465 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 04:14:21,466 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 04:14:21,467 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 04:14:21,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 04:14:21,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 04:14:21,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 04:14:21,471 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 04:14:21,471 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 04:14:21,472 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 04:14:21,472 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 04:14:21,472 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 04:14:21,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 04:14:21,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 04:14:21,475 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a472d883-4d12-4d97-9d95-a2bfa184ce1d/bin/ukojak-fKGseLULKY/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-10-13 04:14:21,512 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 04:14:21,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 04:14:21,514 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 04:14:21,514 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-13 04:14:21,516 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 04:14:21,516 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 04:14:21,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 04:14:21,517 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 04:14:21,517 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 04:14:21,517 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 04:14:21,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 04:14:21,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 04:14:21,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 04:14:21,519 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 04:14:21,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 04:14:21,520 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 04:14:21,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 04:14:21,520 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-13 04:14:21,520 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-13 04:14:21,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 04:14:21,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 04:14:21,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 04:14:21,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 04:14:21,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 04:14:21,522 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-13 04:14:21,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 04:14:21,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 04:14:21,523 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_a472d883-4d12-4d97-9d95-a2bfa184ce1d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a472d883-4d12-4d97-9d95-a2bfa184ce1d/bin/ukojak-fKGseLULKY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3ded6f4470c26b608997f650ebe66ef1cf6f845 [2021-10-13 04:14:21,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 04:14:21,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 04:14:21,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 04:14:21,847 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 04:14:21,848 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 04:14:21,849 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a472d883-4d12-4d97-9d95-a2bfa184ce1d/bin/ukojak-fKGseLULKY/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c [2021-10-13 04:14:21,928 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a472d883-4d12-4d97-9d95-a2bfa184ce1d/bin/ukojak-fKGseLULKY/data/356eb93b8/9730df80ab53430ebe8c0ad895312091/FLAG66ee24096 [2021-10-13 04:14:22,441 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 04:14:22,442 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a472d883-4d12-4d97-9d95-a2bfa184ce1d/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c [2021-10-13 04:14:22,453 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a472d883-4d12-4d97-9d95-a2bfa184ce1d/bin/ukojak-fKGseLULKY/data/356eb93b8/9730df80ab53430ebe8c0ad895312091/FLAG66ee24096 [2021-10-13 04:14:22,817 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a472d883-4d12-4d97-9d95-a2bfa184ce1d/bin/ukojak-fKGseLULKY/data/356eb93b8/9730df80ab53430ebe8c0ad895312091 [2021-10-13 04:14:22,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 04:14:22,824 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 04:14:22,828 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 04:14:22,828 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 04:14:22,831 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 04:14:22,832 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:14:22" (1/1) ... [2021-10-13 04:14:22,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ecf3f9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:14:22, skipping insertion in model container [2021-10-13 04:14:22,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:14:22" (1/1) ... [2021-10-13 04:14:22,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 04:14:22,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 04:14:23,036 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 04:14:23,046 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 04:14:23,060 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 04:14:23,070 INFO L208 MainTranslator]: Completed translation [2021-10-13 04:14:23,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:14:23 WrapperNode [2021-10-13 04:14:23,071 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 04:14:23,072 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 04:14:23,072 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 04:14:23,072 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 04:14:23,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:14:23" (1/1) ... [2021-10-13 04:14:23,084 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:14:23" (1/1) ... [2021-10-13 04:14:23,100 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 04:14:23,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 04:14:23,102 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 04:14:23,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 04:14:23,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:14:23" (1/1) ... [2021-10-13 04:14:23,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:14:23" (1/1) ... [2021-10-13 04:14:23,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:14:23" (1/1) ... [2021-10-13 04:14:23,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:14:23" (1/1) ... [2021-10-13 04:14:23,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:14:23" (1/1) ... [2021-10-13 04:14:23,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:14:23" (1/1) ... [2021-10-13 04:14:23,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:14:23" (1/1) ... [2021-10-13 04:14:23,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 04:14:23,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 04:14:23,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 04:14:23,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 04:14:23,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:14:23" (1/1) ... [2021-10-13 04:14:23,125 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 04:14:23,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a472d883-4d12-4d97-9d95-a2bfa184ce1d/bin/ukojak-fKGseLULKY/z3 [2021-10-13 04:14:23,151 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a472d883-4d12-4d97-9d95-a2bfa184ce1d/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-13 04:14:23,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a472d883-4d12-4d97-9d95-a2bfa184ce1d/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-13 04:14:23,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 04:14:23,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 04:14:23,201 INFO L130 BoogieDeclarations]: Found specification of procedure r1 [2021-10-13 04:14:23,201 INFO L138 BoogieDeclarations]: Found implementation of procedure r1 [2021-10-13 04:14:23,461 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 04:14:23,461 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-13 04:14:23,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:14:23 BoogieIcfgContainer [2021-10-13 04:14:23,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 04:14:23,469 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-13 04:14:23,469 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-13 04:14:23,481 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-13 04:14:23,481 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:14:23" (1/1) ... [2021-10-13 04:14:23,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 04:14:23,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:14:23,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2021-10-13 04:14:23,542 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2021-10-13 04:14:23,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 04:14:23,547 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:14:23,548 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:14:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:14:23,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:14:23,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:14:23,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 27 states and 30 transitions. [2021-10-13 04:14:23,880 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2021-10-13 04:14:23,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 04:14:23,880 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:14:23,881 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:14:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:14:23,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:14:24,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:14:24,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 35 transitions. [2021-10-13 04:14:24,245 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2021-10-13 04:14:24,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 04:14:24,246 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:14:24,246 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:14:24,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:14:24,283 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 04:14:24,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:14:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:14:24,327 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 04:14:24,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:14:24,346 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2021-10-13 04:14:24,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.10 04:14:24 ImpRootNode [2021-10-13 04:14:24,373 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-13 04:14:24,373 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 04:14:24,374 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 04:14:24,374 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 04:14:24,374 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:14:23" (3/4) ... [2021-10-13 04:14:24,376 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 04:14:24,433 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a472d883-4d12-4d97-9d95-a2bfa184ce1d/bin/ukojak-fKGseLULKY/witness.graphml [2021-10-13 04:14:24,433 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 04:14:24,439 INFO L168 Benchmark]: Toolchain (without parser) took 1610.89 ms. Allocated memory was 96.5 MB in the beginning and 127.9 MB in the end (delta: 31.5 MB). Free memory was 64.5 MB in the beginning and 96.4 MB in the end (delta: -31.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:14:24,442 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 96.5 MB. Free memory is still 49.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:14:24,442 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.11 ms. Allocated memory is still 96.5 MB. Free memory was 64.3 MB in the beginning and 73.7 MB in the end (delta: -9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 04:14:24,443 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.06 ms. Allocated memory is still 96.5 MB. Free memory was 73.7 MB in the beginning and 72.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:14:24,444 INFO L168 Benchmark]: Boogie Preprocessor took 15.95 ms. Allocated memory is still 96.5 MB. Free memory was 72.4 MB in the beginning and 71.4 MB in the end (delta: 957.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 04:14:24,444 INFO L168 Benchmark]: RCFGBuilder took 350.11 ms. Allocated memory is still 96.5 MB. Free memory was 71.4 MB in the beginning and 62.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 04:14:24,445 INFO L168 Benchmark]: CodeCheck took 904.02 ms. Allocated memory was 96.5 MB in the beginning and 127.9 MB in the end (delta: 31.5 MB). Free memory was 62.4 MB in the beginning and 97.5 MB in the end (delta: -35.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:14:24,446 INFO L168 Benchmark]: Witness Printer took 60.20 ms. Allocated memory is still 127.9 MB. Free memory was 97.5 MB in the beginning and 96.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 04:14:24,450 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, 24 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 834.6ms, OverallIterations: 3, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 12 SDtfs, 14 SDslu, 0 SDs, 0 SdLazy, 92 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 108.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 326.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 10.7ms SsaConstructionTime, 56.2ms SatisfiabilityAnalysisTime, 215.6ms InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 31 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: 17]: integer overflow possible integer overflow possible We found a FailurePath: [L26] int ls = __VERIFIER_nondet_int(); [L27] COND TRUE ls >= 0 [L22] CALL r1(ls,0) VAL [\old(a)=0, \old(ls)=2147483647] [L14] COND FALSE !(ls == 0) VAL [\old(a)=0, \old(ls)=2147483647, a=0, ls=2147483647] [L17] ls-1 VAL [\old(a)=0, \old(ls)=2147483647, a=0, ls=2147483647] [L17] ls+1 VAL [\old(a)=0, \old(ls)=2147483647, a=0, ls=2147483647] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 96.5 MB. Free memory is still 49.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 243.11 ms. Allocated memory is still 96.5 MB. Free memory was 64.3 MB in the beginning and 73.7 MB in the end (delta: -9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.06 ms. Allocated memory is still 96.5 MB. Free memory was 73.7 MB in the beginning and 72.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 15.95 ms. Allocated memory is still 96.5 MB. Free memory was 72.4 MB in the beginning and 71.4 MB in the end (delta: 957.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 350.11 ms. Allocated memory is still 96.5 MB. Free memory was 71.4 MB in the beginning and 62.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * CodeCheck took 904.02 ms. Allocated memory was 96.5 MB in the beginning and 127.9 MB in the end (delta: 31.5 MB). Free memory was 62.4 MB in the beginning and 97.5 MB in the end (delta: -35.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 60.20 ms. Allocated memory is still 127.9 MB. Free memory was 97.5 MB in the beginning and 96.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 04:14:24,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a472d883-4d12-4d97-9d95-a2bfa184ce1d/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...