./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-tiling/skippedu.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612df1df-3452-405d-ab7c-cd205d724041/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612df1df-3452-405d-ab7c-cd205d724041/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_612df1df-3452-405d-ab7c-cd205d724041/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612df1df-3452-405d-ab7c-cd205d724041/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/array-tiling/skippedu.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612df1df-3452-405d-ab7c-cd205d724041/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612df1df-3452-405d-ab7c-cd205d724041/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 578aa1ed819483237cae7cb7b17bc18e9dfff9e081f63e5821fc4a918d7ba90e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 02:56:01,839 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 02:56:01,896 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612df1df-3452-405d-ab7c-cd205d724041/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 02:56:01,901 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 02:56:01,901 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 02:56:01,922 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 02:56:01,922 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 02:56:01,923 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 02:56:01,923 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 02:56:01,923 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 02:56:01,923 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 02:56:01,923 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 02:56:01,923 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 02:56:01,924 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 02:56:01,924 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 02:56:01,924 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 02:56:01,924 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 02:56:01,924 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 02:56:01,924 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 02:56:01,924 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 02:56:01,924 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 02:56:01,924 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 02:56:01,924 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 02:56:01,924 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 02:56:01,924 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 02:56:01,925 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 02:56:01,925 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 02:56:01,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:56:01,925 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 02:56:01,925 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 02:56:01,925 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 02:56:01,925 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 02:56:01,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 02:56:01,925 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_612df1df-3452-405d-ab7c-cd205d724041/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 ! call(reach_error())) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 578aa1ed819483237cae7cb7b17bc18e9dfff9e081f63e5821fc4a918d7ba90e [2024-12-06 02:56:02,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 02:56:02,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 02:56:02,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 02:56:02,144 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 02:56:02,144 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 02:56:02,145 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612df1df-3452-405d-ab7c-cd205d724041/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/array-tiling/skippedu.c [2024-12-06 02:56:04,854 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612df1df-3452-405d-ab7c-cd205d724041/bin/ukojak-verify-CZk0znPC7b/data/3aa39fb6a/5087b38fc2114d3eb26337a44aeec311/FLAG856215a67 [2024-12-06 02:56:05,049 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 02:56:05,049 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612df1df-3452-405d-ab7c-cd205d724041/sv-benchmarks/c/array-tiling/skippedu.c [2024-12-06 02:56:05,056 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612df1df-3452-405d-ab7c-cd205d724041/bin/ukojak-verify-CZk0znPC7b/data/3aa39fb6a/5087b38fc2114d3eb26337a44aeec311/FLAG856215a67 [2024-12-06 02:56:05,071 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612df1df-3452-405d-ab7c-cd205d724041/bin/ukojak-verify-CZk0znPC7b/data/3aa39fb6a/5087b38fc2114d3eb26337a44aeec311 [2024-12-06 02:56:05,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 02:56:05,075 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 02:56:05,076 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 02:56:05,076 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 02:56:05,081 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 02:56:05,081 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:56:05" (1/1) ... [2024-12-06 02:56:05,082 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fac70fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:56:05, skipping insertion in model container [2024-12-06 02:56:05,082 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:56:05" (1/1) ... [2024-12-06 02:56:05,096 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 02:56:05,230 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612df1df-3452-405d-ab7c-cd205d724041/sv-benchmarks/c/array-tiling/skippedu.c[399,412] [2024-12-06 02:56:05,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:56:05,259 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 02:56:05,269 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612df1df-3452-405d-ab7c-cd205d724041/sv-benchmarks/c/array-tiling/skippedu.c[399,412] [2024-12-06 02:56:05,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:56:05,289 INFO L204 MainTranslator]: Completed translation [2024-12-06 02:56:05,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:56:05 WrapperNode [2024-12-06 02:56:05,290 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 02:56:05,291 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 02:56:05,291 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 02:56:05,291 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 02:56:05,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:56:05" (1/1) ... [2024-12-06 02:56:05,303 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:56:05" (1/1) ... [2024-12-06 02:56:05,319 INFO L138 Inliner]: procedures = 16, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2024-12-06 02:56:05,320 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 02:56:05,320 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 02:56:05,320 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 02:56:05,321 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 02:56:05,328 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:56:05" (1/1) ... [2024-12-06 02:56:05,329 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:56:05" (1/1) ... [2024-12-06 02:56:05,330 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:56:05" (1/1) ... [2024-12-06 02:56:05,331 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:56:05" (1/1) ... [2024-12-06 02:56:05,335 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:56:05" (1/1) ... [2024-12-06 02:56:05,336 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:56:05" (1/1) ... [2024-12-06 02:56:05,340 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:56:05" (1/1) ... [2024-12-06 02:56:05,341 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:56:05" (1/1) ... [2024-12-06 02:56:05,342 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:56:05" (1/1) ... [2024-12-06 02:56:05,344 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 02:56:05,345 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 02:56:05,345 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 02:56:05,345 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 02:56:05,346 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:56:05" (1/1) ... [2024-12-06 02:56:05,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:56:05,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612df1df-3452-405d-ab7c-cd205d724041/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 02:56:05,376 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612df1df-3452-405d-ab7c-cd205d724041/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 02:56:05,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612df1df-3452-405d-ab7c-cd205d724041/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 02:56:05,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 02:56:05,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 02:56:05,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-06 02:56:05,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-06 02:56:05,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 02:56:05,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 02:56:05,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-06 02:56:05,461 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 02:56:05,463 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 02:56:05,604 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-12-06 02:56:05,604 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 02:56:05,661 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 02:56:05,662 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-06 02:56:05,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:56:05 BoogieIcfgContainer [2024-12-06 02:56:05,662 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 02:56:05,663 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 02:56:05,663 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 02:56:05,673 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 02:56:05,673 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:56:05" (1/1) ... [2024-12-06 02:56:05,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 02:56:05,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:56:05,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2024-12-06 02:56:05,728 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2024-12-06 02:56:05,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 02:56:05,730 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:56:05,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:56:05,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:56:05,913 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 02:56:05,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:56:05,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 14 states and 19 transitions. [2024-12-06 02:56:05,963 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 19 transitions. [2024-12-06 02:56:05,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 02:56:05,963 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:56:05,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:56:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:56:06,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 02:56:06,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:56:06,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2024-12-06 02:56:06,126 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2024-12-06 02:56:06,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 02:56:06,126 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:56:06,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:56:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:56:06,319 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 02:56:06,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:56:06,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2024-12-06 02:56:06,512 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2024-12-06 02:56:06,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 02:56:06,513 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:56:06,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:56:06,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:56:06,553 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 02:56:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:56:06,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:56:06,630 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 02:56:06,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:56:06,659 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2024-12-06 02:56:06,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 02:56:06 ImpRootNode [2024-12-06 02:56:06,684 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 02:56:06,684 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 02:56:06,685 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 02:56:06,685 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 02:56:06,685 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:56:05" (3/4) ... [2024-12-06 02:56:06,686 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 02:56:06,723 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 16. [2024-12-06 02:56:06,760 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612df1df-3452-405d-ab7c-cd205d724041/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 02:56:06,760 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612df1df-3452-405d-ab7c-cd205d724041/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 02:56:06,760 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 02:56:06,761 INFO L158 Benchmark]: Toolchain (without parser) took 1685.88ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 75.7MB in the end (delta: 41.7MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2024-12-06 02:56:06,761 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:56:06,761 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.67ms. Allocated memory is still 142.6MB. Free memory was 117.2MB in the beginning and 105.7MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 02:56:06,761 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.28ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 104.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:56:06,762 INFO L158 Benchmark]: Boogie Preprocessor took 23.57ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 103.5MB in the end (delta: 967.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 02:56:06,762 INFO L158 Benchmark]: RCFGBuilder took 317.32ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 87.6MB in the end (delta: 15.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 02:56:06,762 INFO L158 Benchmark]: CodeCheck took 1021.16ms. Allocated memory is still 142.6MB. Free memory was 87.6MB in the beginning and 80.9MB in the end (delta: 6.7MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2024-12-06 02:56:06,762 INFO L158 Benchmark]: Witness Printer took 75.57ms. Allocated memory is still 142.6MB. Free memory was 80.9MB in the beginning and 75.7MB in the end (delta: 5.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:56:06,764 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, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 65 IncrementalHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 21 mSDtfsCounter, 65 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 209 GetRequests, 189 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 59 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 3/4 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: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L12] int SIZE; [L14] const int MAX = 100000; [L18] SIZE = __VERIFIER_nondet_int() [L19] COND TRUE SIZE > 1 && SIZE < MAX [L21] int i; [L22] int *a = malloc(sizeof(int)*SIZE); [L24] i = 0 VAL [MAX=100000, SIZE=2, a={4:0}, i=0] [L24] COND TRUE i < SIZE [L26] a[i] = __VERIFIER_nondet_int() [L24] i++ VAL [MAX=100000, SIZE=2, a={4:0}, i=1] [L24] COND TRUE i < SIZE [L26] a[i] = __VERIFIER_nondet_int() [L24] i++ VAL [MAX=100000, SIZE=2, a={4:0}, i=2] [L24] COND FALSE !(i < SIZE) VAL [MAX=100000, SIZE=2, a={4:0}] [L29] COND FALSE !(SIZE % 2 != 0) [L31] CALL assume_abort_if_not(SIZE % 2 == 0) [L6] COND FALSE !(!cond) [L31] RET assume_abort_if_not(SIZE % 2 == 0) [L32] i = 1 VAL [MAX=100000, SIZE=2, a={4:0}, i=1] [L32] COND TRUE i <= SIZE/2 [L34] EXPR a[2*i-2] [L34] COND FALSE !(a[2*i-2] > i) [L38] EXPR a[2*i-1] [L38] COND TRUE a[2*i-1] > i [L40] a[2*i-1] = 2*i-1 [L32] i++ VAL [MAX=100000, SIZE=2, a={4:0}, i=2] [L32] COND FALSE !(i <= SIZE/2) [L44] i = 0 VAL [MAX=100000, SIZE=2, a={4:0}, i=0] [L44] COND TRUE i < SIZE [L46] EXPR a[i] [L46] CALL __VERIFIER_assert( a[i] <= i ) [L8] COND TRUE !(cond) VAL [MAX=100000, SIZE=2] [L8] reach_error() VAL [MAX=100000, SIZE=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 213.67ms. Allocated memory is still 142.6MB. Free memory was 117.2MB in the beginning and 105.7MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.28ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 104.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.57ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 103.5MB in the end (delta: 967.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 317.32ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 87.6MB in the end (delta: 15.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1021.16ms. Allocated memory is still 142.6MB. Free memory was 87.6MB in the beginning and 80.9MB in the end (delta: 6.7MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * Witness Printer took 75.57ms. Allocated memory is still 142.6MB. Free memory was 80.9MB in the beginning and 75.7MB in the end (delta: 5.1MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 02:56:06,776 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_612df1df-3452-405d-ab7c-cd205d724041/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE