./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-dietlibc/strtoul.i --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_d6238511-2743-4346-9af3-d62b3167fec5/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6238511-2743-4346-9af3-d62b3167fec5/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_d6238511-2743-4346-9af3-d62b3167fec5/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6238511-2743-4346-9af3-d62b3167fec5/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-dietlibc/strtoul.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6238511-2743-4346-9af3-d62b3167fec5/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_d6238511-2743-4346-9af3-d62b3167fec5/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 d4f351cb322dbf1a8c0048cd0e44aa29b2553ea539b13a26ee79638cd7ecc928 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 03:41:01,341 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 03:41:01,398 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6238511-2743-4346-9af3-d62b3167fec5/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 03:41:01,403 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 03:41:01,403 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 03:41:01,423 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 03:41:01,424 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 03:41:01,424 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 03:41:01,425 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 03:41:01,425 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 03:41:01,425 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 03:41:01,425 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 03:41:01,425 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 03:41:01,425 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 03:41:01,425 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 03:41:01,425 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 03:41:01,425 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 03:41:01,426 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 03:41:01,426 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 03:41:01,426 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 03:41:01,426 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 03:41:01,426 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 03:41:01,426 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 03:41:01,426 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 03:41:01,426 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 03:41:01,426 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 03:41:01,426 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:41:01,427 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 03:41:01,427 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 03:41:01,427 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 03:41:01,427 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 03:41:01,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 03:41:01,427 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_d6238511-2743-4346-9af3-d62b3167fec5/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 -> d4f351cb322dbf1a8c0048cd0e44aa29b2553ea539b13a26ee79638cd7ecc928 [2024-12-06 03:41:01,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 03:41:01,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 03:41:01,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 03:41:01,681 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 03:41:01,682 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 03:41:01,683 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6238511-2743-4346-9af3-d62b3167fec5/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/termination-dietlibc/strtoul.i [2024-12-06 03:41:04,346 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6238511-2743-4346-9af3-d62b3167fec5/bin/ukojak-verify-CZk0znPC7b/data/ea8bcefbd/9b944c6cad3641c5be91a2db27a440fa/FLAG5043e52da [2024-12-06 03:41:04,615 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 03:41:04,616 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6238511-2743-4346-9af3-d62b3167fec5/sv-benchmarks/c/termination-dietlibc/strtoul.i [2024-12-06 03:41:04,627 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6238511-2743-4346-9af3-d62b3167fec5/bin/ukojak-verify-CZk0znPC7b/data/ea8bcefbd/9b944c6cad3641c5be91a2db27a440fa/FLAG5043e52da [2024-12-06 03:41:04,935 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6238511-2743-4346-9af3-d62b3167fec5/bin/ukojak-verify-CZk0znPC7b/data/ea8bcefbd/9b944c6cad3641c5be91a2db27a440fa [2024-12-06 03:41:04,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 03:41:04,938 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 03:41:04,939 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 03:41:04,939 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 03:41:04,942 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 03:41:04,942 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:41:04" (1/1) ... [2024-12-06 03:41:04,943 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fd82ba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:41:04, skipping insertion in model container [2024-12-06 03:41:04,943 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:41:04" (1/1) ... [2024-12-06 03:41:04,966 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 03:41:05,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:41:05,185 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 03:41:05,225 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:41:05,244 INFO L204 MainTranslator]: Completed translation [2024-12-06 03:41:05,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:41:05 WrapperNode [2024-12-06 03:41:05,245 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 03:41:05,245 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 03:41:05,245 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 03:41:05,245 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 03:41:05,250 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:41:05" (1/1) ... [2024-12-06 03:41:05,260 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:41:05" (1/1) ... [2024-12-06 03:41:05,282 INFO L138 Inliner]: procedures = 116, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 169 [2024-12-06 03:41:05,282 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 03:41:05,283 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 03:41:05,283 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 03:41:05,283 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 03:41:05,288 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:41:05" (1/1) ... [2024-12-06 03:41:05,288 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:41:05" (1/1) ... [2024-12-06 03:41:05,292 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:41:05" (1/1) ... [2024-12-06 03:41:05,292 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:41:05" (1/1) ... [2024-12-06 03:41:05,299 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:41:05" (1/1) ... [2024-12-06 03:41:05,300 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:41:05" (1/1) ... [2024-12-06 03:41:05,303 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:41:05" (1/1) ... [2024-12-06 03:41:05,305 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:41:05" (1/1) ... [2024-12-06 03:41:05,306 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:41:05" (1/1) ... [2024-12-06 03:41:05,308 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 03:41:05,309 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 03:41:05,309 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 03:41:05,309 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 03:41:05,310 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:41:05" (1/1) ... [2024-12-06 03:41:05,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:41:05,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6238511-2743-4346-9af3-d62b3167fec5/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 03:41:05,337 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6238511-2743-4346-9af3-d62b3167fec5/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 03:41:05,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6238511-2743-4346-9af3-d62b3167fec5/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 03:41:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-06 03:41:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-06 03:41:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-06 03:41:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-06 03:41:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 03:41:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-12-06 03:41:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 03:41:05,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 03:41:05,439 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 03:41:05,440 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 03:41:05,689 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2024-12-06 03:41:05,689 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 03:41:05,753 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 03:41:05,753 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-06 03:41:05,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:41:05 BoogieIcfgContainer [2024-12-06 03:41:05,754 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 03:41:05,754 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 03:41:05,754 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 03:41:05,763 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 03:41:05,764 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:41:05" (1/1) ... [2024-12-06 03:41:05,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 03:41:05,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:41:05,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 61 states and 75 transitions. [2024-12-06 03:41:05,816 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 75 transitions. [2024-12-06 03:41:05,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-12-06 03:41:05,818 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:41:05,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:41:05,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:41:05,956 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 03:41:05,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:41:05,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 62 states and 76 transitions. [2024-12-06 03:41:05,981 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 76 transitions. [2024-12-06 03:41:05,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 03:41:05,981 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:41:05,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:41:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:41:06,022 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 03:41:06,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:41:06,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 64 states and 79 transitions. [2024-12-06 03:41:06,088 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 79 transitions. [2024-12-06 03:41:06,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 03:41:06,088 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:41:06,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:41:06,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:41:06,177 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 03:41:06,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:41:06,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 68 states and 87 transitions. [2024-12-06 03:41:06,348 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 87 transitions. [2024-12-06 03:41:06,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 03:41:06,349 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:41:06,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:41:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:41:06,380 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 03:41:06,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:41:06,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 72 states and 92 transitions. [2024-12-06 03:41:06,469 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 92 transitions. [2024-12-06 03:41:06,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 03:41:06,469 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:41:06,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:41:06,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:41:06,523 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 03:41:06,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:41:06,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 73 states and 95 transitions. [2024-12-06 03:41:06,542 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 95 transitions. [2024-12-06 03:41:06,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 03:41:06,542 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:41:06,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:41:06,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:41:06,569 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 03:41:06,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:41:06,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 77 states and 100 transitions. [2024-12-06 03:41:06,632 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 100 transitions. [2024-12-06 03:41:06,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 03:41:06,633 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:41:06,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:41:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:41:06,664 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 03:41:06,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:41:06,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 77 states and 99 transitions. [2024-12-06 03:41:06,744 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 99 transitions. [2024-12-06 03:41:06,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 03:41:06,744 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:41:06,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:41:06,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:41:06,772 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 03:41:06,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:41:06,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 79 states and 100 transitions. [2024-12-06 03:41:06,862 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 100 transitions. [2024-12-06 03:41:06,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 03:41:06,863 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:41:06,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:41:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:41:06,969 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:41:07,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:41:07,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 83 states and 108 transitions. [2024-12-06 03:41:07,289 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 108 transitions. [2024-12-06 03:41:07,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 03:41:07,289 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:41:07,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:41:07,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:41:07,313 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-06 03:41:07,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:41:07,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 85 states and 109 transitions. [2024-12-06 03:41:07,413 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 109 transitions. [2024-12-06 03:41:07,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 03:41:07,414 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:41:07,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:41:07,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:41:07,502 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:41:07,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:41:07,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 90 states and 118 transitions. [2024-12-06 03:41:07,862 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 118 transitions. [2024-12-06 03:41:07,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-06 03:41:07,863 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:41:07,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:41:07,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:41:07,883 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 03:41:07,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:41:07,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 90 states and 117 transitions. [2024-12-06 03:41:07,895 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 117 transitions. [2024-12-06 03:41:07,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-06 03:41:07,896 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:41:07,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:41:07,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:41:07,941 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-06 03:41:08,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:41:08,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 91 states and 118 transitions. [2024-12-06 03:41:08,155 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 118 transitions. [2024-12-06 03:41:08,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-06 03:41:08,156 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:41:08,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:41:08,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:41:08,176 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 03:41:08,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:41:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:41:08,232 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 03:41:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:41:08,264 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 14 iterations. [2024-12-06 03:41:08,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 03:41:08 ImpRootNode [2024-12-06 03:41:08,291 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 03:41:08,291 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 03:41:08,291 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 03:41:08,291 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 03:41:08,292 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:41:05" (3/4) ... [2024-12-06 03:41:08,293 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 03:41:08,324 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 9. [2024-12-06 03:41:08,362 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6238511-2743-4346-9af3-d62b3167fec5/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 03:41:08,362 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6238511-2743-4346-9af3-d62b3167fec5/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 03:41:08,362 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 03:41:08,363 INFO L158 Benchmark]: Toolchain (without parser) took 3425.42ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 77.2MB in the end (delta: 38.4MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. [2024-12-06 03:41:08,363 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:41:08,364 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.20ms. Allocated memory is still 142.6MB. Free memory was 115.4MB in the beginning and 97.8MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 03:41:08,364 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.96ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 95.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:41:08,364 INFO L158 Benchmark]: Boogie Preprocessor took 26.02ms. Allocated memory is still 142.6MB. Free memory was 95.6MB in the beginning and 94.2MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:41:08,365 INFO L158 Benchmark]: RCFGBuilder took 444.34ms. Allocated memory is still 142.6MB. Free memory was 94.2MB in the beginning and 68.0MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-06 03:41:08,365 INFO L158 Benchmark]: CodeCheck took 2536.47ms. Allocated memory is still 142.6MB. Free memory was 68.0MB in the beginning and 81.9MB in the end (delta: -13.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:41:08,365 INFO L158 Benchmark]: Witness Printer took 71.06ms. Allocated memory is still 142.6MB. Free memory was 81.9MB in the beginning and 77.2MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:41:08,367 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, 61 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 14, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 517 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 399 mSDsluCounter, 164 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 102 mSDsCounter, 261 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1285 IncrementalHoareTripleChecker+Invalid, 1546 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 261 mSolverCounterUnsat, 62 mSDtfsCounter, 1285 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 895 GetRequests, 788 SyntacticMatches, 31 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2448 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 127 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 258 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 13/22 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: 519]: integer overflow possible integer overflow possible We found a FailurePath: [L551] int in_len = __VERIFIER_nondet_int(); [L552] COND FALSE !(in_len < 1) [L553] char* in = __builtin_alloca (in_len); [L554] int i=0; VAL [i=0, in={2:0}, in_len=1] [L554] EXPR in_len-1 VAL [i=0, in={2:0}, in_len=1] [L554] COND FALSE !(i