./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8281db4c-e444-4427-a1b5-7bc56c1eddd0/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8281db4c-e444-4427-a1b5-7bc56c1eddd0/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_8281db4c-e444-4427-a1b5-7bc56c1eddd0/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8281db4c-e444-4427-a1b5-7bc56c1eddd0/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8281db4c-e444-4427-a1b5-7bc56c1eddd0/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_8281db4c-e444-4427-a1b5-7bc56c1eddd0/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 b7646a22882710466ec3244f9455a19a1dbe784d959581f36adf578939304de7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 03:44:21,994 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 03:44:22,085 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8281db4c-e444-4427-a1b5-7bc56c1eddd0/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-25 03:44:22,090 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 03:44:22,090 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 03:44:22,115 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 03:44:22,116 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 03:44:22,116 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 03:44:22,116 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 03:44:22,116 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 03:44:22,117 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 03:44:22,117 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 03:44:22,117 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 03:44:22,117 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 03:44:22,117 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 03:44:22,117 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 03:44:22,117 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 03:44:22,117 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 03:44:22,117 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 03:44:22,118 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 03:44:22,118 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 03:44:22,118 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 03:44:22,118 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 03:44:22,118 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 03:44:22,118 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 03:44:22,118 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 03:44:22,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:44:22,118 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 03:44:22,119 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 03:44:22,119 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 03:44:22,119 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 03:44:22,119 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 03:44:22,119 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_8281db4c-e444-4427-a1b5-7bc56c1eddd0/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 -> b7646a22882710466ec3244f9455a19a1dbe784d959581f36adf578939304de7 [2024-11-25 03:44:22,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 03:44:22,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 03:44:22,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 03:44:22,501 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 03:44:22,502 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 03:44:22,505 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8281db4c-e444-4427-a1b5-7bc56c1eddd0/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c [2024-11-25 03:44:25,447 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8281db4c-e444-4427-a1b5-7bc56c1eddd0/bin/ukojak-verify-ENZ3QT5qd3/data/4738d6b6e/084c2060c0204b8994f72f112d6560b5/FLAGfca5abe77 [2024-11-25 03:44:25,776 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 03:44:25,776 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8281db4c-e444-4427-a1b5-7bc56c1eddd0/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c [2024-11-25 03:44:25,788 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8281db4c-e444-4427-a1b5-7bc56c1eddd0/bin/ukojak-verify-ENZ3QT5qd3/data/4738d6b6e/084c2060c0204b8994f72f112d6560b5/FLAGfca5abe77 [2024-11-25 03:44:25,813 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8281db4c-e444-4427-a1b5-7bc56c1eddd0/bin/ukojak-verify-ENZ3QT5qd3/data/4738d6b6e/084c2060c0204b8994f72f112d6560b5 [2024-11-25 03:44:25,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 03:44:25,818 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 03:44:25,819 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 03:44:25,819 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 03:44:25,827 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 03:44:25,828 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:44:25" (1/1) ... [2024-11-25 03:44:25,829 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bba3f22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:44:25, skipping insertion in model container [2024-11-25 03:44:25,829 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:44:25" (1/1) ... [2024-11-25 03:44:25,849 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 03:44:25,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:44:25,986 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 03:44:25,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:44:26,010 INFO L204 MainTranslator]: Completed translation [2024-11-25 03:44:26,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:44:26 WrapperNode [2024-11-25 03:44:26,011 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 03:44:26,012 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 03:44:26,012 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 03:44:26,012 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 03:44:26,019 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:44:26" (1/1) ... [2024-11-25 03:44:26,025 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:44:26" (1/1) ... [2024-11-25 03:44:26,044 INFO L138 Inliner]: procedures = 6, calls = 5, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 19 [2024-11-25 03:44:26,044 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 03:44:26,045 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 03:44:26,045 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 03:44:26,045 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 03:44:26,051 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:44:26" (1/1) ... [2024-11-25 03:44:26,052 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:44:26" (1/1) ... [2024-11-25 03:44:26,053 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:44:26" (1/1) ... [2024-11-25 03:44:26,053 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:44:26" (1/1) ... [2024-11-25 03:44:26,056 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:44:26" (1/1) ... [2024-11-25 03:44:26,060 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:44:26" (1/1) ... [2024-11-25 03:44:26,062 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:44:26" (1/1) ... [2024-11-25 03:44:26,063 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:44:26" (1/1) ... [2024-11-25 03:44:26,064 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:44:26" (1/1) ... [2024-11-25 03:44:26,066 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 03:44:26,067 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 03:44:26,067 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 03:44:26,067 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 03:44:26,071 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:44:26" (1/1) ... [2024-11-25 03:44:26,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:44:26,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8281db4c-e444-4427-a1b5-7bc56c1eddd0/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 03:44:26,118 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8281db4c-e444-4427-a1b5-7bc56c1eddd0/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 03:44:26,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8281db4c-e444-4427-a1b5-7bc56c1eddd0/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 03:44:26,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 03:44:26,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 03:44:26,159 INFO L130 BoogieDeclarations]: Found specification of procedure r1 [2024-11-25 03:44:26,159 INFO L138 BoogieDeclarations]: Found implementation of procedure r1 [2024-11-25 03:44:26,213 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 03:44:26,214 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 03:44:26,370 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-25 03:44:26,370 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 03:44:26,404 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 03:44:26,404 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 03:44:26,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:44:26 BoogieIcfgContainer [2024-11-25 03:44:26,405 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 03:44:26,405 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 03:44:26,405 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 03:44:26,417 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 03:44:26,417 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:44:26" (1/1) ... [2024-11-25 03:44:26,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 03:44:26,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:44:26,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2024-11-25 03:44:26,484 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2024-11-25 03:44:26,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-25 03:44:26,491 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:44:26,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:44:26,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:44:26,717 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 03:44:26,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:44:26,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 27 states and 30 transitions. [2024-11-25 03:44:26,853 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2024-11-25 03:44:26,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-25 03:44:26,854 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:44:26,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:44:26,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:44:27,025 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 03:44:27,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:44:27,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 35 transitions. [2024-11-25 03:44:27,373 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2024-11-25 03:44:27,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 03:44:27,374 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:44:27,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:44:27,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:44:27,439 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 03:44:27,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:44:27,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 30 states and 34 transitions. [2024-11-25 03:44:27,553 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2024-11-25 03:44:27,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-25 03:44:27,553 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:44:27,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:44:27,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:44:27,561 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 03:44:27,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:44:27,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:44:27,609 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 03:44:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:44:27,621 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2024-11-25 03:44:27,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 03:44:27 ImpRootNode [2024-11-25 03:44:27,649 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 03:44:27,650 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 03:44:27,650 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 03:44:27,650 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 03:44:27,651 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:44:26" (3/4) ... [2024-11-25 03:44:27,652 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-25 03:44:27,701 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 5. [2024-11-25 03:44:27,753 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8281db4c-e444-4427-a1b5-7bc56c1eddd0/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-25 03:44:27,753 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8281db4c-e444-4427-a1b5-7bc56c1eddd0/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-25 03:44:27,753 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 03:44:27,755 INFO L158 Benchmark]: Toolchain (without parser) took 1936.52ms. Allocated memory is still 142.6MB. Free memory was 118.9MB in the beginning and 107.9MB in the end (delta: 11.0MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2024-11-25 03:44:27,755 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 142.6MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:44:27,756 INFO L158 Benchmark]: CACSL2BoogieTranslator took 192.00ms. Allocated memory is still 142.6MB. Free memory was 118.9MB in the beginning and 109.2MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 03:44:27,756 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.61ms. Allocated memory is still 142.6MB. Free memory was 109.0MB in the beginning and 108.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:44:27,756 INFO L158 Benchmark]: Boogie Preprocessor took 21.40ms. Allocated memory is still 142.6MB. Free memory was 108.0MB in the beginning and 107.4MB in the end (delta: 520.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:44:27,757 INFO L158 Benchmark]: RCFGBuilder took 338.09ms. Allocated memory is still 142.6MB. Free memory was 107.4MB in the beginning and 97.1MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 03:44:27,757 INFO L158 Benchmark]: CodeCheck took 1243.82ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 112.2MB in the end (delta: -15.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:44:27,758 INFO L158 Benchmark]: Witness Printer took 103.40ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 107.9MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 03:44:27,759 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 2 procedures, 24 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 122 IncrementalHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 22 mSDtfsCounter, 122 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 159 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 46 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, ConComCheckerStatistics: No data available - CounterExampleResult [Line: 17]: integer overflow possible integer overflow possible We found a FailurePath: [L26] int ls = __VERIFIER_nondet_int(); [L27] COND TRUE ls >= 0 [L28] CALL rev(ls) [L22] CALL r1(ls,0) VAL [\old(a)=0, \old(ls)=2147483647] [L14] COND FALSE !(ls == 0) VAL [\old(a)=0, \old(ls)=2147483647, a=0, ls=2147483647] [L17] ls-1 VAL [\old(a)=0, \old(ls)=2147483647, a=0, ls=2147483647] [L17] ls+1 VAL [\old(a)=0, \old(ls)=2147483647, a=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 142.6MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 192.00ms. Allocated memory is still 142.6MB. Free memory was 118.9MB in the beginning and 109.2MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.61ms. Allocated memory is still 142.6MB. Free memory was 109.0MB in the beginning and 108.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.40ms. Allocated memory is still 142.6MB. Free memory was 108.0MB in the beginning and 107.4MB in the end (delta: 520.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 338.09ms. Allocated memory is still 142.6MB. Free memory was 107.4MB in the beginning and 97.1MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1243.82ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 112.2MB in the end (delta: -15.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 103.40ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 107.9MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-25 03:44:27,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8281db4c-e444-4427-a1b5-7bc56c1eddd0/bin/ukojak-verify-ENZ3QT5qd3/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)