./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2b.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef9c5981-227f-47cb-a640-618548cb8777/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef9c5981-227f-47cb-a640-618548cb8777/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef9c5981-227f-47cb-a640-618548cb8777/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef9c5981-227f-47cb-a640-618548cb8777/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef9c5981-227f-47cb-a640-618548cb8777/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef9c5981-227f-47cb-a640-618548cb8777/bin/ukojak-verify-ImItNfHLgk --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 2d15f7a175b7227b2fe35aa1981e666cdccea86724b9e7e9c290d14ef6b6263a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:33:49,892 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:33:49,998 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef9c5981-227f-47cb-a640-618548cb8777/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-09 00:33:50,004 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:33:50,005 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:33:50,034 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:33:50,035 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:33:50,036 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:33:50,037 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:33:50,038 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:33:50,038 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:33:50,039 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:33:50,039 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:33:50,040 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:33:50,041 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:33:50,041 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:33:50,042 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:33:50,042 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:33:50,043 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 00:33:50,043 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 00:33:50,044 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:33:50,045 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:33:50,045 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:33:50,046 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:33:50,046 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:33:50,047 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:33:50,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:33:50,048 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:33:50,049 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:33:50,049 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:33:50,050 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:33:50,050 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:33:50,051 INFO L153 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_ef9c5981-227f-47cb-a640-618548cb8777/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef9c5981-227f-47cb-a640-618548cb8777/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d15f7a175b7227b2fe35aa1981e666cdccea86724b9e7e9c290d14ef6b6263a [2024-11-09 00:33:50,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:33:50,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:33:50,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:33:50,423 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:33:50,424 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:33:50,425 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef9c5981-227f-47cb-a640-618548cb8777/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2b.c Unable to find full path for "g++" [2024-11-09 00:33:52,824 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:33:53,052 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:33:53,052 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef9c5981-227f-47cb-a640-618548cb8777/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2b.c [2024-11-09 00:33:53,061 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef9c5981-227f-47cb-a640-618548cb8777/bin/ukojak-verify-ImItNfHLgk/data/5d9cb1031/86e57cc0fbe04e8eb68fea376b6179f9/FLAG57c3cbf69 [2024-11-09 00:33:53,080 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef9c5981-227f-47cb-a640-618548cb8777/bin/ukojak-verify-ImItNfHLgk/data/5d9cb1031/86e57cc0fbe04e8eb68fea376b6179f9 [2024-11-09 00:33:53,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:33:53,085 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:33:53,087 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:33:53,088 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:33:53,095 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:33:53,096 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:33:53" (1/1) ... [2024-11-09 00:33:53,098 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67ffa6ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:33:53, skipping insertion in model container [2024-11-09 00:33:53,098 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:33:53" (1/1) ... [2024-11-09 00:33:53,122 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:33:53,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:33:53,373 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:33:53,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:33:53,406 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:33:53,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:33:53 WrapperNode [2024-11-09 00:33:53,407 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:33:53,409 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:33:53,409 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:33:53,409 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:33:53,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:33:53" (1/1) ... [2024-11-09 00:33:53,420 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:33:53" (1/1) ... [2024-11-09 00:33:53,440 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 69 [2024-11-09 00:33:53,440 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:33:53,441 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:33:53,441 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:33:53,441 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:33:53,453 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:33:53" (1/1) ... [2024-11-09 00:33:53,454 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:33:53" (1/1) ... [2024-11-09 00:33:53,459 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:33:53" (1/1) ... [2024-11-09 00:33:53,462 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:33:53" (1/1) ... [2024-11-09 00:33:53,465 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:33:53" (1/1) ... [2024-11-09 00:33:53,475 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:33:53" (1/1) ... [2024-11-09 00:33:53,476 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:33:53" (1/1) ... [2024-11-09 00:33:53,477 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:33:53" (1/1) ... [2024-11-09 00:33:53,479 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:33:53,480 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:33:53,480 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:33:53,481 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:33:53,482 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:33:53" (1/1) ... [2024-11-09 00:33:53,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:33:53,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef9c5981-227f-47cb-a640-618548cb8777/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:33:53,518 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef9c5981-227f-47cb-a640-618548cb8777/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:33:53,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef9c5981-227f-47cb-a640-618548cb8777/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:33:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:33:53,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:33:53,641 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:33:53,643 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:33:53,874 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-09 00:33:53,874 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:33:53,939 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:33:53,939 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 00:33:53,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:33:53 BoogieIcfgContainer [2024-11-09 00:33:53,940 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:33:53,942 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:33:53,943 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:33:53,957 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:33:53,957 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:33:53" (1/1) ... [2024-11-09 00:33:53,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:33:54,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:33:54,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 47 states and 52 transitions. [2024-11-09 00:33:54,048 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2024-11-09 00:33:54,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 00:33:54,050 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:33:54,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:33:54,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:33:54,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:33:54,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:33:54,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 46 states and 50 transitions. [2024-11-09 00:33:54,344 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2024-11-09 00:33:54,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 00:33:54,345 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:33:54,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:33:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:33:54,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:33:54,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:33:54,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 50 states and 55 transitions. [2024-11-09 00:33:54,590 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2024-11-09 00:33:54,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 00:33:54,591 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:33:54,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:33:54,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:33:54,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:33:55,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:33:55,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 55 states and 64 transitions. [2024-11-09 00:33:55,201 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2024-11-09 00:33:55,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 00:33:55,203 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:33:55,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:33:55,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:33:55,219 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:33:55,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:33:55,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:33:55,266 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:33:55,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:33:55,280 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2024-11-09 00:33:55,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:33:55 ImpRootNode [2024-11-09 00:33:55,306 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:33:55,307 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:33:55,307 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:33:55,307 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:33:55,307 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:33:53" (3/4) ... [2024-11-09 00:33:55,308 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 00:33:55,341 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef9c5981-227f-47cb-a640-618548cb8777/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-09 00:33:55,341 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:33:55,342 INFO L158 Benchmark]: Toolchain (without parser) took 2256.98ms. Allocated memory is still 180.4MB. Free memory was 142.6MB in the beginning and 143.0MB in the end (delta: -429.9kB). Peak memory consumption was 1.0MB. Max. memory is 16.1GB. [2024-11-09 00:33:55,342 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 123.7MB. Free memory is still 68.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:33:55,343 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.55ms. Allocated memory is still 180.4MB. Free memory was 142.6MB in the beginning and 130.7MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 00:33:55,344 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.84ms. Allocated memory is still 180.4MB. Free memory was 130.7MB in the beginning and 129.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:33:55,344 INFO L158 Benchmark]: Boogie Preprocessor took 38.47ms. Allocated memory is still 180.4MB. Free memory was 129.4MB in the beginning and 128.7MB in the end (delta: 738.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:33:55,345 INFO L158 Benchmark]: RCFGBuilder took 461.39ms. Allocated memory is still 180.4MB. Free memory was 128.7MB in the beginning and 114.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 00:33:55,345 INFO L158 Benchmark]: CodeCheck took 1363.71ms. Allocated memory is still 180.4MB. Free memory was 114.0MB in the beginning and 145.1MB in the end (delta: -31.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:33:55,346 INFO L158 Benchmark]: Witness Printer took 34.84ms. Allocated memory is still 180.4MB. Free memory was 145.1MB in the beginning and 143.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:33:55,349 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, 47 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 9 mSDtfsCounter, 93 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 48 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - CounterExampleResult [Line: 19]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int x, y; [L15] x = __VERIFIER_nondet_int() [L16] y = __VERIFIER_nondet_int() [L17] COND FALSE !(x >= 2) VAL [x=2, y=2147483647] [L17] COND TRUE x >= 2 VAL [x=2, y=2147483647] [L18] EXPR x - 1 [L18] x = x - 1 VAL [x=1, y=2147483647] [L19] y + x * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 123.7MB. Free memory is still 68.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.55ms. Allocated memory is still 180.4MB. Free memory was 142.6MB in the beginning and 130.7MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.84ms. Allocated memory is still 180.4MB. Free memory was 130.7MB in the beginning and 129.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.47ms. Allocated memory is still 180.4MB. Free memory was 129.4MB in the beginning and 128.7MB in the end (delta: 738.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 461.39ms. Allocated memory is still 180.4MB. Free memory was 128.7MB in the beginning and 114.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 1363.71ms. Allocated memory is still 180.4MB. Free memory was 114.0MB in the beginning and 145.1MB in the end (delta: -31.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 34.84ms. Allocated memory is still 180.4MB. Free memory was 145.1MB in the beginning and 143.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-09 00:33:55,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef9c5981-227f-47cb-a640-618548cb8777/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)