./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17d7a31-a8f6-4fbb-9835-e298ac62e9a8/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17d7a31-a8f6-4fbb-9835-e298ac62e9a8/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17d7a31-a8f6-4fbb-9835-e298ac62e9a8/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17d7a31-a8f6-4fbb-9835-e298ac62e9a8/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17d7a31-a8f6-4fbb-9835-e298ac62e9a8/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17d7a31-a8f6-4fbb-9835-e298ac62e9a8/bin/ukojak-verify-ENZ3QT5qd3 --witnessprinter.witness.filename witness --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 ab66f9f89348f915f5a709aa03ac6e16c276dad15b53c460d26f0885e78d4ce7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 03:14:07,793 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 03:14:07,890 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17d7a31-a8f6-4fbb-9835-e298ac62e9a8/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-25 03:14:07,898 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 03:14:07,898 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 03:14:07,939 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 03:14:07,940 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 03:14:07,940 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 03:14:07,941 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 03:14:07,941 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 03:14:07,942 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 03:14:07,942 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 03:14:07,942 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 03:14:07,942 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 03:14:07,943 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 03:14:07,944 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 03:14:07,944 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 03:14:07,944 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 03:14:07,944 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 03:14:07,944 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 03:14:07,944 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 03:14:07,945 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 03:14:07,945 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 03:14:07,945 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 03:14:07,945 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 03:14:07,945 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 03:14:07,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:14:07,946 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 03:14:07,946 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 03:14:07,946 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 03:14:07,946 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 03:14:07,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 03:14:07,946 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_d17d7a31-a8f6-4fbb-9835-e298ac62e9a8/bin/ukojak-verify-ENZ3QT5qd3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> ab66f9f89348f915f5a709aa03ac6e16c276dad15b53c460d26f0885e78d4ce7 [2024-11-25 03:14:08,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 03:14:08,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 03:14:08,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 03:14:08,292 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 03:14:08,292 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 03:14:08,296 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17d7a31-a8f6-4fbb-9835-e298ac62e9a8/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig3.c [2024-11-25 03:14:11,362 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17d7a31-a8f6-4fbb-9835-e298ac62e9a8/bin/ukojak-verify-ENZ3QT5qd3/data/91aea9586/74d51c8055a3423394681d812caa93ed/FLAG422d20a61 [2024-11-25 03:14:11,695 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 03:14:11,696 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17d7a31-a8f6-4fbb-9835-e298ac62e9a8/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig3.c [2024-11-25 03:14:11,725 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17d7a31-a8f6-4fbb-9835-e298ac62e9a8/bin/ukojak-verify-ENZ3QT5qd3/data/91aea9586/74d51c8055a3423394681d812caa93ed/FLAG422d20a61 [2024-11-25 03:14:11,767 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17d7a31-a8f6-4fbb-9835-e298ac62e9a8/bin/ukojak-verify-ENZ3QT5qd3/data/91aea9586/74d51c8055a3423394681d812caa93ed [2024-11-25 03:14:11,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 03:14:11,775 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 03:14:11,777 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 03:14:11,778 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 03:14:11,784 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 03:14:11,785 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:14:11" (1/1) ... [2024-11-25 03:14:11,789 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20874374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:11, skipping insertion in model container [2024-11-25 03:14:11,789 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:14:11" (1/1) ... [2024-11-25 03:14:11,808 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 03:14:11,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:14:11,981 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 03:14:11,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:14:12,001 INFO L204 MainTranslator]: Completed translation [2024-11-25 03:14:12,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:12 WrapperNode [2024-11-25 03:14:12,002 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 03:14:12,002 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 03:14:12,002 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 03:14:12,003 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 03:14:12,009 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:12" (1/1) ... [2024-11-25 03:14:12,012 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:12" (1/1) ... [2024-11-25 03:14:12,025 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33 [2024-11-25 03:14:12,026 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 03:14:12,026 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 03:14:12,026 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 03:14:12,027 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 03:14:12,033 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:12" (1/1) ... [2024-11-25 03:14:12,033 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:12" (1/1) ... [2024-11-25 03:14:12,033 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:12" (1/1) ... [2024-11-25 03:14:12,033 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:12" (1/1) ... [2024-11-25 03:14:12,035 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:12" (1/1) ... [2024-11-25 03:14:12,040 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:12" (1/1) ... [2024-11-25 03:14:12,044 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:12" (1/1) ... [2024-11-25 03:14:12,044 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:12" (1/1) ... [2024-11-25 03:14:12,045 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:12" (1/1) ... [2024-11-25 03:14:12,046 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 03:14:12,047 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 03:14:12,047 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 03:14:12,047 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 03:14:12,048 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:12" (1/1) ... [2024-11-25 03:14:12,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:14:12,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17d7a31-a8f6-4fbb-9835-e298ac62e9a8/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 03:14:12,081 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17d7a31-a8f6-4fbb-9835-e298ac62e9a8/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 03:14:12,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17d7a31-a8f6-4fbb-9835-e298ac62e9a8/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 03:14:12,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 03:14:12,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 03:14:12,168 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 03:14:12,170 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 03:14:12,271 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-25 03:14:12,271 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 03:14:12,296 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 03:14:12,297 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-25 03:14:12,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:14:12 BoogieIcfgContainer [2024-11-25 03:14:12,300 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 03:14:12,301 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 03:14:12,301 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 03:14:12,308 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 03:14:12,308 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:14:12" (1/1) ... [2024-11-25 03:14:12,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 03:14:12,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:14:12,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 17 states and 18 transitions. [2024-11-25 03:14:12,364 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2024-11-25 03:14:12,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-25 03:14:12,367 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:14:12,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:14:12,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:14:12,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:14:12,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:14:12,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2024-11-25 03:14:12,559 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2024-11-25 03:14:12,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-25 03:14:12,559 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:14:12,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:14:12,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:14:12,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:14:12,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:14:12,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 15 states and 16 transitions. [2024-11-25 03:14:12,733 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2024-11-25 03:14:12,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-25 03:14:12,733 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:14:12,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:14:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:14:12,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:14:13,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:14:13,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2024-11-25 03:14:13,039 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-11-25 03:14:13,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-25 03:14:13,040 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:14:13,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:14:13,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:14:13,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:14:13,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:14:13,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2024-11-25 03:14:13,485 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2024-11-25 03:14:13,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-25 03:14:13,486 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:14:13,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:14:13,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:14:13,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:14:13,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:14:13,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2024-11-25 03:14:13,682 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2024-11-25 03:14:13,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-25 03:14:13,682 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:14:13,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:14:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:14:13,691 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 03:14:13,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:14:13,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:14:13,730 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 03:14:13,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:14:13,748 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2024-11-25 03:14:13,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 03:14:13 ImpRootNode [2024-11-25 03:14:13,772 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 03:14:13,772 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 03:14:13,772 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 03:14:13,773 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 03:14:13,773 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:14:12" (3/4) ... [2024-11-25 03:14:13,774 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-25 03:14:13,818 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 3. [2024-11-25 03:14:13,865 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17d7a31-a8f6-4fbb-9835-e298ac62e9a8/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-25 03:14:13,865 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17d7a31-a8f6-4fbb-9835-e298ac62e9a8/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-25 03:14:13,866 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 03:14:13,866 INFO L158 Benchmark]: Toolchain (without parser) took 2093.34ms. Allocated memory is still 117.4MB. Free memory was 94.3MB in the beginning and 64.6MB in the end (delta: 29.7MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. [2024-11-25 03:14:13,868 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 167.8MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:14:13,868 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.58ms. Allocated memory is still 117.4MB. Free memory was 94.0MB in the beginning and 84.1MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 03:14:13,869 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.48ms. Allocated memory is still 117.4MB. Free memory was 84.1MB in the beginning and 83.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:14:13,869 INFO L158 Benchmark]: Boogie Preprocessor took 19.70ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 82.2MB in the end (delta: 798.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:14:13,869 INFO L158 Benchmark]: RCFGBuilder took 253.25ms. Allocated memory is still 117.4MB. Free memory was 82.2MB in the beginning and 71.7MB in the end (delta: 10.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:14:13,870 INFO L158 Benchmark]: CodeCheck took 1471.10ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 68.7MB in the end (delta: 3.0MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2024-11-25 03:14:13,870 INFO L158 Benchmark]: Witness Printer took 93.43ms. Allocated memory is still 117.4MB. Free memory was 68.2MB in the beginning and 64.6MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 03:14:13,873 INFO L338 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, 17 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 70 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 50 mSDsluCounter, 124 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 91 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 141 IncrementalHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 33 mSDtfsCounter, 141 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 200 GetRequests, 161 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 51 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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, ConComCheckerStatistics: No data available - CounterExampleResult [Line: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int x = __VERIFIER_nondet_int(); [L13] int y = __VERIFIER_nondet_int(); [L14] COND TRUE x > 0 && y > 0 [L15] int old_x = x; [L16] int old_y = y; [L17] COND FALSE !(__VERIFIER_nondet_int()) [L21] EXPR old_y - 2 [L21] x = old_y - 2 VAL [old_x=2147483647, x=-1] [L22] old_x + 1 VAL [x=-1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 167.8MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 224.58ms. Allocated memory is still 117.4MB. Free memory was 94.0MB in the beginning and 84.1MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.48ms. Allocated memory is still 117.4MB. Free memory was 84.1MB in the beginning and 83.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.70ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 82.2MB in the end (delta: 798.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 253.25ms. Allocated memory is still 117.4MB. Free memory was 82.2MB in the beginning and 71.7MB in the end (delta: 10.5MB). There was no memory consumed. Max. memory is 16.1GB. * CodeCheck took 1471.10ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 68.7MB in the end (delta: 3.0MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * Witness Printer took 93.43ms. Allocated memory is still 117.4MB. Free memory was 68.2MB in the beginning and 64.6MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-25 03:14:13,893 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d17d7a31-a8f6-4fbb-9835-e298ac62e9a8/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with 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)