./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-dietlibc/strcasecmp.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5018d308-b540-4c84-b60d-7372cabe58e5/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5018d308-b540-4c84-b60d-7372cabe58e5/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_5018d308-b540-4c84-b60d-7372cabe58e5/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5018d308-b540-4c84-b60d-7372cabe58e5/bin/ukojak-verify-CZk0znPC7b/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-dietlibc/strcasecmp.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5018d308-b540-4c84-b60d-7372cabe58e5/bin/ukojak-verify-CZk0znPC7b/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5018d308-b540-4c84-b60d-7372cabe58e5/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4b83d1547bf3dd46e9571984e7e0a13f5187eff03a7662628a99d75ecc5b0412 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 22:57:59,429 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 22:57:59,487 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5018d308-b540-4c84-b60d-7372cabe58e5/bin/ukojak-verify-CZk0znPC7b/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf [2024-12-05 22:57:59,491 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 22:57:59,492 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 22:57:59,511 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 22:57:59,512 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 22:57:59,513 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 22:57:59,513 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 22:57:59,513 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 22:57:59,513 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 22:57:59,513 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-05 22:57:59,513 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-05 22:57:59,513 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-05 22:57:59,514 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 22:57:59,514 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 22:57:59,514 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 22:57:59,514 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 22:57:59,514 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 22:57:59,514 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 22:57:59,514 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 22:57:59,514 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 22:57:59,515 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 22:57:59,515 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 22:57:59,515 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 22:57:59,515 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 22:57:59,515 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 22:57:59,515 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_5018d308-b540-4c84-b60d-7372cabe58e5/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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 4b83d1547bf3dd46e9571984e7e0a13f5187eff03a7662628a99d75ecc5b0412 [2024-12-05 22:57:59,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 22:57:59,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 22:57:59,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 22:57:59,740 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 22:57:59,741 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 22:57:59,742 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5018d308-b540-4c84-b60d-7372cabe58e5/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/termination-dietlibc/strcasecmp.i [2024-12-05 22:58:02,382 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5018d308-b540-4c84-b60d-7372cabe58e5/bin/ukojak-verify-CZk0znPC7b/data/62b447d64/09ec9ab8e4414a188a4bcab16caafc36/FLAGdc628dbfe [2024-12-05 22:58:02,633 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 22:58:02,633 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5018d308-b540-4c84-b60d-7372cabe58e5/sv-benchmarks/c/termination-dietlibc/strcasecmp.i [2024-12-05 22:58:02,646 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5018d308-b540-4c84-b60d-7372cabe58e5/bin/ukojak-verify-CZk0znPC7b/data/62b447d64/09ec9ab8e4414a188a4bcab16caafc36/FLAGdc628dbfe [2024-12-05 22:58:02,956 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5018d308-b540-4c84-b60d-7372cabe58e5/bin/ukojak-verify-CZk0znPC7b/data/62b447d64/09ec9ab8e4414a188a4bcab16caafc36 [2024-12-05 22:58:02,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 22:58:02,959 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 22:58:02,960 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 22:58:02,960 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 22:58:02,963 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 22:58:02,964 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:58:02" (1/1) ... [2024-12-05 22:58:02,965 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b5b87fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:58:02, skipping insertion in model container [2024-12-05 22:58:02,965 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:58:02" (1/1) ... [2024-12-05 22:58:02,987 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 22:58:03,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 22:58:03,238 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 22:58:03,277 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 22:58:03,303 INFO L204 MainTranslator]: Completed translation [2024-12-05 22:58:03,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:58:03 WrapperNode [2024-12-05 22:58:03,304 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 22:58:03,305 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 22:58:03,305 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 22:58:03,305 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 22:58:03,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:58:03" (1/1) ... [2024-12-05 22:58:03,322 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:58:03" (1/1) ... [2024-12-05 22:58:03,341 INFO L138 Inliner]: procedures = 114, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 93 [2024-12-05 22:58:03,341 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 22:58:03,342 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 22:58:03,342 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 22:58:03,342 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 22:58:03,350 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:58:03" (1/1) ... [2024-12-05 22:58:03,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:58:03" (1/1) ... [2024-12-05 22:58:03,352 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:58:03" (1/1) ... [2024-12-05 22:58:03,352 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:58:03" (1/1) ... [2024-12-05 22:58:03,358 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:58:03" (1/1) ... [2024-12-05 22:58:03,359 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:58:03" (1/1) ... [2024-12-05 22:58:03,363 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:58:03" (1/1) ... [2024-12-05 22:58:03,364 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:58:03" (1/1) ... [2024-12-05 22:58:03,365 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:58:03" (1/1) ... [2024-12-05 22:58:03,367 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 22:58:03,368 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 22:58:03,368 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 22:58:03,368 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 22:58:03,369 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:58:03" (1/1) ... [2024-12-05 22:58:03,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 22:58:03,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5018d308-b540-4c84-b60d-7372cabe58e5/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 22:58:03,402 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5018d308-b540-4c84-b60d-7372cabe58e5/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 22:58:03,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5018d308-b540-4c84-b60d-7372cabe58e5/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 22:58:03,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-05 22:58:03,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-05 22:58:03,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-05 22:58:03,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-05 22:58:03,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 22:58:03,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 22:58:03,511 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 22:58:03,513 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 22:58:03,733 INFO L? ?]: Removed 47 outVars from TransFormulas that were not future-live. [2024-12-05 22:58:03,733 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 22:58:03,791 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 22:58:03,792 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-05 22:58:03,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:58:03 BoogieIcfgContainer [2024-12-05 22:58:03,792 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 22:58:03,793 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 22:58:03,793 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 22:58:03,803 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 22:58:03,803 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:58:03" (1/1) ... [2024-12-05 22:58:03,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 22:58:03,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:58:03,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 29 states and 35 transitions. [2024-12-05 22:58:03,862 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2024-12-05 22:58:03,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-12-05 22:58:03,864 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:58:03,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:58:03,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:58:03,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:58:04,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:58:04,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 30 states and 37 transitions. [2024-12-05 22:58:04,007 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2024-12-05 22:58:04,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-05 22:58:04,008 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:58:04,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:58:04,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:58:04,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:58:04,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:58:04,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 29 states and 36 transitions. [2024-12-05 22:58:04,141 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2024-12-05 22:58:04,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-05 22:58:04,141 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:58:04,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:58:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:58:04,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:58:04,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:58:04,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 31 states and 40 transitions. [2024-12-05 22:58:04,743 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 40 transitions. [2024-12-05 22:58:04,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-05 22:58:04,744 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:58:04,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:58:04,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:58:04,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:58:04,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:58:04,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 30 states and 39 transitions. [2024-12-05 22:58:04,796 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2024-12-05 22:58:04,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-05 22:58:04,797 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:58:04,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:58:04,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:58:04,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:58:05,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:58:05,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 31 states and 41 transitions. [2024-12-05 22:58:05,292 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 41 transitions. [2024-12-05 22:58:05,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-05 22:58:05,294 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:58:05,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:58:05,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:58:05,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:58:06,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:58:06,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 34 states and 48 transitions. [2024-12-05 22:58:06,355 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2024-12-05 22:58:06,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-05 22:58:06,356 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:58:06,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:58:06,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:58:06,621 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:58:07,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:58:07,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 35 states and 51 transitions. [2024-12-05 22:58:07,179 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 51 transitions. [2024-12-05 22:58:07,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-05 22:58:07,179 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:58:07,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:58:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:58:07,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:58:07,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:58:07,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 37 states and 55 transitions. [2024-12-05 22:58:07,663 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 55 transitions. [2024-12-05 22:58:07,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-05 22:58:07,663 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:58:07,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:58:07,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:58:07,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:58:07,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:58:07,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 36 states and 54 transitions. [2024-12-05 22:58:07,807 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 54 transitions. [2024-12-05 22:58:07,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-05 22:58:07,808 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:58:07,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:58:07,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:58:08,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:58:08,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:58:08,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 39 states and 61 transitions. [2024-12-05 22:58:08,532 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 61 transitions. [2024-12-05 22:58:08,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-05 22:58:08,533 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:58:08,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:58:08,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:58:08,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:58:08,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:58:08,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 38 states and 60 transitions. [2024-12-05 22:58:08,575 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 60 transitions. [2024-12-05 22:58:08,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-05 22:58:08,575 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:58:08,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:58:08,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:58:08,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:58:09,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:58:09,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 39 states and 62 transitions. [2024-12-05 22:58:09,371 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 62 transitions. [2024-12-05 22:58:09,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 22:58:09,371 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:58:09,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:58:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:58:09,744 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:58:10,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:58:10,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 35 states and 52 transitions. [2024-12-05 22:58:10,367 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 52 transitions. [2024-12-05 22:58:10,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 22:58:10,367 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:58:10,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:58:10,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:58:10,500 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 22:58:10,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:58:10,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 31 states and 43 transitions. [2024-12-05 22:58:10,836 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2024-12-05 22:58:10,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 22:58:10,837 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:58:10,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:58:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:58:10,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 22:58:11,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:58:11,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 32 states and 45 transitions. [2024-12-05 22:58:11,383 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 45 transitions. [2024-12-05 22:58:11,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 22:58:11,383 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:58:11,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:58:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:58:11,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:58:11,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:58:11,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 33 states and 46 transitions. [2024-12-05 22:58:11,577 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2024-12-05 22:58:11,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 22:58:11,577 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:58:11,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:58:11,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 22:58:11,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 22:58:13,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:58:13,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 36 states and 53 transitions. [2024-12-05 22:58:13,134 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2024-12-05 22:58:13,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-05 22:58:13,134 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:58:13,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:58:13,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:58:13,142 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 22:58:13,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:58:13,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:58:13,185 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 22:58:13,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:58:13,205 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 18 iterations. [2024-12-05 22:58:13,229 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 10:58:13 ImpRootNode [2024-12-05 22:58:13,230 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 22:58:13,230 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 22:58:13,230 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 22:58:13,231 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 22:58:13,231 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:58:03" (3/4) ... [2024-12-05 22:58:13,232 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-05 22:58:13,270 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 6. [2024-12-05 22:58:13,316 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5018d308-b540-4c84-b60d-7372cabe58e5/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-05 22:58:13,317 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5018d308-b540-4c84-b60d-7372cabe58e5/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-05 22:58:13,317 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 22:58:13,318 INFO L158 Benchmark]: Toolchain (without parser) took 10358.75ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 30.8MB in the end (delta: 61.0MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. [2024-12-05 22:58:13,318 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:58:13,318 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.04ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 75.2MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 22:58:13,319 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.70ms. Allocated memory is still 117.4MB. Free memory was 74.9MB in the beginning and 73.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:58:13,319 INFO L158 Benchmark]: Boogie Preprocessor took 25.16ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 72.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:58:13,319 INFO L158 Benchmark]: RCFGBuilder took 424.62ms. Allocated memory is still 117.4MB. Free memory was 72.2MB in the beginning and 52.9MB in the end (delta: 19.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-05 22:58:13,320 INFO L158 Benchmark]: CodeCheck took 9436.91ms. Allocated memory is still 117.4MB. Free memory was 52.9MB in the beginning and 35.4MB in the end (delta: 17.4MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2024-12-05 22:58:13,320 INFO L158 Benchmark]: Witness Printer took 86.80ms. Allocated memory is still 117.4MB. Free memory was 35.4MB in the beginning and 30.8MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:58:13,322 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, 29 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 9.4s, OverallIterations: 18, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 463 SdHoareTripleChecker+Valid, 4.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 398 mSDsluCounter, 74 SdHoareTripleChecker+Invalid, 3.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 40 mSDsCounter, 592 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2100 IncrementalHoareTripleChecker+Invalid, 2692 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 592 mSolverCounterUnsat, 34 mSDtfsCounter, 2100 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 959 GetRequests, 788 SyntacticMatches, 25 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8933 ImplicationChecksByTransitivity, 7.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 892 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 15 PerfectInterpolantSequences, 7/14 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: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L523] int in_len = __VERIFIER_nondet_int(); [L524] COND FALSE !(in_len < 1) [L525] char* in = __builtin_alloca (in_len); [L526] int i=0; VAL [i=0, in={3:0}, in_len=1] [L526] COND FALSE !(i