./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-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_da25ffa3-a80f-45a6-bac9-38214806ddd9/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da25ffa3-a80f-45a6-bac9-38214806ddd9/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da25ffa3-a80f-45a6-bac9-38214806ddd9/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da25ffa3-a80f-45a6-bac9-38214806ddd9/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da25ffa3-a80f-45a6-bac9-38214806ddd9/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da25ffa3-a80f-45a6-bac9-38214806ddd9/bin/ukojak-verify-CZk0znPC7b --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 d6984ce947edd44f0505e125be96f5769f9348f9c3acb95fd5f2e7ef0f2e794d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 05:14:18,916 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:14:18,970 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da25ffa3-a80f-45a6-bac9-38214806ddd9/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 05:14:18,974 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 05:14:18,974 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 05:14:18,993 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:14:18,994 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 05:14:18,994 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 05:14:18,994 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:14:18,994 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:14:18,994 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:14:18,994 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 05:14:18,995 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 05:14:18,995 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:14:18,995 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 05:14:18,995 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:14:18,995 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 05:14:18,995 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 05:14:18,995 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 05:14:18,995 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 05:14:18,995 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:14:18,995 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:14:18,995 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:14:18,995 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:14:18,996 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:14:18,996 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:14:18,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:14:18,996 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:14:18,996 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:14:18,996 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 05:14:18,996 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 05:14:18,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 05:14:18,996 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_da25ffa3-a80f-45a6-bac9-38214806ddd9/bin/ukojak-verify-CZk0znPC7b 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 -> d6984ce947edd44f0505e125be96f5769f9348f9c3acb95fd5f2e7ef0f2e794d [2024-12-06 05:14:19,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:14:19,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:14:19,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:14:19,240 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:14:19,240 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:14:19,241 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da25ffa3-a80f-45a6-bac9-38214806ddd9/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3.c [2024-12-06 05:14:21,855 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da25ffa3-a80f-45a6-bac9-38214806ddd9/bin/ukojak-verify-CZk0znPC7b/data/d10330166/d5a2ecca4b9a476e954430a325152078/FLAG3ecc4595b [2024-12-06 05:14:22,039 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:14:22,040 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da25ffa3-a80f-45a6-bac9-38214806ddd9/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3.c [2024-12-06 05:14:22,051 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da25ffa3-a80f-45a6-bac9-38214806ddd9/bin/ukojak-verify-CZk0znPC7b/data/d10330166/d5a2ecca4b9a476e954430a325152078/FLAG3ecc4595b [2024-12-06 05:14:22,416 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da25ffa3-a80f-45a6-bac9-38214806ddd9/bin/ukojak-verify-CZk0znPC7b/data/d10330166/d5a2ecca4b9a476e954430a325152078 [2024-12-06 05:14:22,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:14:22,419 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:14:22,420 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:14:22,420 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:14:22,423 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:14:22,423 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:14:22" (1/1) ... [2024-12-06 05:14:22,424 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ef2f13c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:14:22, skipping insertion in model container [2024-12-06 05:14:22,424 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:14:22" (1/1) ... [2024-12-06 05:14:22,433 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:14:22,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:14:22,521 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:14:22,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:14:22,537 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:14:22,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:14:22 WrapperNode [2024-12-06 05:14:22,538 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:14:22,539 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:14:22,539 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:14:22,539 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:14:22,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:14:22" (1/1) ... [2024-12-06 05:14:22,545 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:14:22" (1/1) ... [2024-12-06 05:14:22,554 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 36 [2024-12-06 05:14:22,554 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:14:22,555 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:14:22,555 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:14:22,555 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:14:22,559 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:14:22" (1/1) ... [2024-12-06 05:14:22,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:14:22" (1/1) ... [2024-12-06 05:14:22,559 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:14:22" (1/1) ... [2024-12-06 05:14:22,560 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:14:22" (1/1) ... [2024-12-06 05:14:22,561 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:14:22" (1/1) ... [2024-12-06 05:14:22,561 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:14:22" (1/1) ... [2024-12-06 05:14:22,564 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:14:22" (1/1) ... [2024-12-06 05:14:22,564 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:14:22" (1/1) ... [2024-12-06 05:14:22,564 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:14:22" (1/1) ... [2024-12-06 05:14:22,565 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:14:22,566 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:14:22,566 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:14:22,566 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:14:22,566 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:14:22" (1/1) ... [2024-12-06 05:14:22,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:14:22,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da25ffa3-a80f-45a6-bac9-38214806ddd9/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:14:22,588 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da25ffa3-a80f-45a6-bac9-38214806ddd9/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:14:22,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da25ffa3-a80f-45a6-bac9-38214806ddd9/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:14:22,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:14:22,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:14:22,655 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:14:22,656 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:14:22,734 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-12-06 05:14:22,735 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:14:22,759 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:14:22,759 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 05:14:22,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:14:22 BoogieIcfgContainer [2024-12-06 05:14:22,759 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:14:22,760 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:14:22,760 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:14:22,767 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:14:22,767 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:14:22" (1/1) ... [2024-12-06 05:14:22,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:14:22,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:14:22,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2024-12-06 05:14:22,824 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2024-12-06 05:14:22,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 05:14:22,826 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:14:22,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:14:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:14:22,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:14:22,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:14:22,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 15 states and 16 transitions. [2024-12-06 05:14:22,991 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2024-12-06 05:14:22,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 05:14:22,991 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:14:22,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:14:22,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:14:23,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:14:23,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:14:23,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2024-12-06 05:14:23,114 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-12-06 05:14:23,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 05:14:23,114 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:14:23,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:14:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:14:23,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:14:23,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:14:23,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2024-12-06 05:14:23,348 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2024-12-06 05:14:23,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 05:14:23,349 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:14:23,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:14:23,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:14:23,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:14:23,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:14:23,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 22 states and 29 transitions. [2024-12-06 05:14:23,670 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2024-12-06 05:14:23,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 05:14:23,670 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:14:23,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:14:23,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:14:23,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:14:23,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:14:23,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2024-12-06 05:14:23,831 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2024-12-06 05:14:23,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 05:14:23,831 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:14:23,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:14:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:14:23,839 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:14:23,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:14:23,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:14:23,869 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:14:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:14:23,880 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2024-12-06 05:14:23,897 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 05:14:23 ImpRootNode [2024-12-06 05:14:23,897 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 05:14:23,898 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 05:14:23,898 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 05:14:23,898 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 05:14:23,898 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:14:22" (3/4) ... [2024-12-06 05:14:23,899 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 05:14:23,925 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 3. [2024-12-06 05:14:23,956 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da25ffa3-a80f-45a6-bac9-38214806ddd9/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 05:14:23,956 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da25ffa3-a80f-45a6-bac9-38214806ddd9/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 05:14:23,956 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 05:14:23,957 INFO L158 Benchmark]: Toolchain (without parser) took 1538.35ms. Allocated memory is still 142.6MB. Free memory was 119.4MB in the beginning and 89.4MB in the end (delta: 29.9MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2024-12-06 05:14:23,957 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:14:23,958 INFO L158 Benchmark]: CACSL2BoogieTranslator took 118.70ms. Allocated memory is still 142.6MB. Free memory was 119.2MB in the beginning and 109.1MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 05:14:23,958 INFO L158 Benchmark]: Boogie Procedure Inliner took 15.71ms. Allocated memory is still 142.6MB. Free memory was 109.1MB in the beginning and 108.1MB in the end (delta: 982.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:14:23,958 INFO L158 Benchmark]: Boogie Preprocessor took 10.63ms. Allocated memory is still 142.6MB. Free memory was 108.1MB in the beginning and 107.5MB in the end (delta: 599.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:14:23,959 INFO L158 Benchmark]: RCFGBuilder took 193.81ms. Allocated memory is still 142.6MB. Free memory was 107.4MB in the beginning and 96.6MB in the end (delta: 10.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 05:14:23,959 INFO L158 Benchmark]: CodeCheck took 1137.43ms. Allocated memory is still 142.6MB. Free memory was 96.5MB in the beginning and 93.6MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:14:23,959 INFO L158 Benchmark]: Witness Printer took 58.49ms. Allocated memory is still 142.6MB. Free memory was 93.6MB in the beginning and 89.4MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 05:14:23,961 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, 16 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 75 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 50 mSDsluCounter, 119 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 81 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 156 IncrementalHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 38 mSDtfsCounter, 156 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 212 GetRequests, 173 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s 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: 29]: integer overflow possible integer overflow possible We found a FailurePath: [L18] int x, y, oldx, oldy; [L19] x = __VERIFIER_nondet_int() [L20] y = __VERIFIER_nondet_int() [L21] COND TRUE x > 0 && y > 0 [L22] oldx = x [L23] oldy = y [L24] COND FALSE !(__VERIFIER_nondet_int() != 0) [L28] EXPR oldy - 2 [L28] x = oldy - 2 VAL [oldx=2147483647, x=-1] [L29] oldx + 1 VAL [x=-1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 118.70ms. Allocated memory is still 142.6MB. Free memory was 119.2MB in the beginning and 109.1MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 15.71ms. Allocated memory is still 142.6MB. Free memory was 109.1MB in the beginning and 108.1MB in the end (delta: 982.9kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 10.63ms. Allocated memory is still 142.6MB. Free memory was 108.1MB in the beginning and 107.5MB in the end (delta: 599.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 193.81ms. Allocated memory is still 142.6MB. Free memory was 107.4MB in the beginning and 96.6MB in the end (delta: 10.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1137.43ms. Allocated memory is still 142.6MB. Free memory was 96.5MB in the beginning and 93.6MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 58.49ms. Allocated memory is still 142.6MB. Free memory was 93.6MB in the beginning and 89.4MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 05:14:23,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da25ffa3-a80f-45a6-bac9-38214806ddd9/bin/ukojak-verify-CZk0znPC7b/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)