./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 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed08d630-4b72-4222-8997-199f8e0486e4/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed08d630-4b72-4222-8997-199f8e0486e4/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed08d630-4b72-4222-8997-199f8e0486e4/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed08d630-4b72-4222-8997-199f8e0486e4/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/array-tiling/skippedu.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed08d630-4b72-4222-8997-199f8e0486e4/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed08d630-4b72-4222-8997-199f8e0486e4/bin/ukojak-verify-EEHR8qb7sm --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-826ab2b [2024-11-13 22:14:05,974 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 22:14:06,055 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed08d630-4b72-4222-8997-199f8e0486e4/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 22:14:06,061 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 22:14:06,061 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 22:14:06,111 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 22:14:06,111 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 22:14:06,112 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 22:14:06,112 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 22:14:06,112 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 22:14:06,112 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 22:14:06,113 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 22:14:06,113 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 22:14:06,113 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 22:14:06,113 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 22:14:06,113 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 22:14:06,113 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 22:14:06,113 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 22:14:06,113 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 22:14:06,114 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 22:14:06,114 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 22:14:06,114 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 22:14:06,114 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 22:14:06,114 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 22:14:06,114 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 22:14:06,114 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 22:14:06,114 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 22:14:06,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:14:06,115 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 22:14:06,115 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 22:14:06,115 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 22:14:06,115 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 22:14:06,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 22:14:06,115 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_ed08d630-4b72-4222-8997-199f8e0486e4/bin/ukojak-verify-EEHR8qb7sm 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 [2024-11-13 22:14:06,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 22:14:06,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 22:14:06,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 22:14:06,503 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 22:14:06,504 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 22:14:06,505 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed08d630-4b72-4222-8997-199f8e0486e4/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/array-tiling/skippedu.c Unable to find full path for "g++" [2024-11-13 22:14:08,465 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 22:14:08,703 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 22:14:08,704 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed08d630-4b72-4222-8997-199f8e0486e4/sv-benchmarks/c/array-tiling/skippedu.c [2024-11-13 22:14:08,712 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed08d630-4b72-4222-8997-199f8e0486e4/bin/ukojak-verify-EEHR8qb7sm/data/70320a448/fb4deca70ba34c43ae11080755788fdd/FLAG5914f5b88 [2024-11-13 22:14:09,037 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed08d630-4b72-4222-8997-199f8e0486e4/bin/ukojak-verify-EEHR8qb7sm/data/70320a448/fb4deca70ba34c43ae11080755788fdd [2024-11-13 22:14:09,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 22:14:09,042 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 22:14:09,044 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 22:14:09,044 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 22:14:09,050 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 22:14:09,051 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:14:09" (1/1) ... [2024-11-13 22:14:09,054 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26a1a512 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:14:09, skipping insertion in model container [2024-11-13 22:14:09,054 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:14:09" (1/1) ... [2024-11-13 22:14:09,076 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 22:14:09,242 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_ed08d630-4b72-4222-8997-199f8e0486e4/sv-benchmarks/c/array-tiling/skippedu.c[399,412] [2024-11-13 22:14:09,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:14:09,286 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 22:14:09,297 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_ed08d630-4b72-4222-8997-199f8e0486e4/sv-benchmarks/c/array-tiling/skippedu.c[399,412] [2024-11-13 22:14:09,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:14:09,321 INFO L204 MainTranslator]: Completed translation [2024-11-13 22:14:09,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:14:09 WrapperNode [2024-11-13 22:14:09,322 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 22:14:09,323 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 22:14:09,323 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 22:14:09,323 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 22:14:09,331 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:14:09" (1/1) ... [2024-11-13 22:14:09,342 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:14:09" (1/1) ... [2024-11-13 22:14:09,366 INFO L138 Inliner]: procedures = 16, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2024-11-13 22:14:09,367 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 22:14:09,367 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 22:14:09,367 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 22:14:09,367 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 22:14:09,376 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:14:09" (1/1) ... [2024-11-13 22:14:09,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:14:09" (1/1) ... [2024-11-13 22:14:09,378 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:14:09" (1/1) ... [2024-11-13 22:14:09,378 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:14:09" (1/1) ... [2024-11-13 22:14:09,384 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:14:09" (1/1) ... [2024-11-13 22:14:09,388 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:14:09" (1/1) ... [2024-11-13 22:14:09,389 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:14:09" (1/1) ... [2024-11-13 22:14:09,389 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:14:09" (1/1) ... [2024-11-13 22:14:09,391 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 22:14:09,392 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 22:14:09,392 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 22:14:09,392 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 22:14:09,394 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:14:09" (1/1) ... [2024-11-13 22:14:09,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:14:09,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed08d630-4b72-4222-8997-199f8e0486e4/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 22:14:09,430 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed08d630-4b72-4222-8997-199f8e0486e4/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 22:14:09,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed08d630-4b72-4222-8997-199f8e0486e4/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 22:14:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 22:14:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 22:14:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 22:14:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 22:14:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 22:14:09,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 22:14:09,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 22:14:09,548 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 22:14:09,552 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 22:14:09,837 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-13 22:14:09,837 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 22:14:09,952 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 22:14:09,953 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-13 22:14:09,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:14:09 BoogieIcfgContainer [2024-11-13 22:14:09,953 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 22:14:09,954 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 22:14:09,954 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 22:14:09,969 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 22:14:09,970 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:14:09" (1/1) ... [2024-11-13 22:14:09,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 22:14:10,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:14:10,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2024-11-13 22:14:10,047 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2024-11-13 22:14:10,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 22:14:10,050 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:14:10,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:14:10,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:14:10,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 22:14:10,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:14:10,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 14 states and 19 transitions. [2024-11-13 22:14:10,428 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 19 transitions. [2024-11-13 22:14:10,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 22:14:10,429 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:14:10,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:14:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:14:10,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 22:14:10,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:14:10,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2024-11-13 22:14:10,800 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2024-11-13 22:14:10,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-13 22:14:10,801 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:14:10,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:14:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:14:11,173 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 22:14:11,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:14:11,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2024-11-13 22:14:11,479 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2024-11-13 22:14:11,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 22:14:11,479 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:14:11,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:14:11,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:14:11,549 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:14:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:14:11,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:14:11,682 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:14:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:14:11,729 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2024-11-13 22:14:11,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 10:14:11 ImpRootNode [2024-11-13 22:14:11,762 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 22:14:11,763 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 22:14:11,763 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 22:14:11,763 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 22:14:11,764 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:14:09" (3/4) ... [2024-11-13 22:14:11,765 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 22:14:11,806 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed08d630-4b72-4222-8997-199f8e0486e4/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 22:14:11,806 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 22:14:11,807 INFO L158 Benchmark]: Toolchain (without parser) took 2764.75ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 45.0MB in the end (delta: 46.5MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. [2024-11-13 22:14:11,807 INFO L158 Benchmark]: CDTParser took 1.61ms. Allocated memory is still 83.9MB. Free memory is still 41.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:14:11,807 INFO L158 Benchmark]: CACSL2BoogieTranslator took 278.02ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 80.2MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 22:14:11,808 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.87ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 78.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:14:11,808 INFO L158 Benchmark]: Boogie Preprocessor took 24.19ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 77.9MB in the end (delta: 1.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 22:14:11,809 INFO L158 Benchmark]: RCFGBuilder took 560.94ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 62.8MB in the end (delta: 15.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 22:14:11,809 INFO L158 Benchmark]: CodeCheck took 1808.43ms. Allocated memory is still 117.4MB. Free memory was 62.8MB in the beginning and 47.4MB in the end (delta: 15.4MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2024-11-13 22:14:11,810 INFO L158 Benchmark]: Witness Printer took 42.72ms. Allocated memory is still 117.4MB. Free memory was 46.7MB in the beginning and 45.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:14:11,812 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: 1.7s, 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, 24 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 62 IncrementalHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 24 mSDtfsCounter, 62 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, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s 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 - 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={29043:0}, i=0] [L24] COND TRUE i < SIZE [L26] a[i] = __VERIFIER_nondet_int() [L24] i++ VAL [MAX=100000, SIZE=2, a={29043:0}, i=1] [L24] COND TRUE i < SIZE [L26] a[i] = __VERIFIER_nondet_int() [L24] i++ VAL [MAX=100000, SIZE=2, a={29043:0}, i=2] [L24] COND FALSE !(i < SIZE) VAL [MAX=100000, SIZE=2, a={29043:0}] [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={29043:0}, 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={29043:0}, i=2] [L32] COND FALSE !(i <= SIZE/2) [L44] i = 0 VAL [MAX=100000, SIZE=2, a={29043:0}, 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 1.61ms. Allocated memory is still 83.9MB. Free memory is still 41.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 278.02ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 80.2MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.87ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 78.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.19ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 77.9MB in the end (delta: 1.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 560.94ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 62.8MB in the end (delta: 15.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1808.43ms. Allocated memory is still 117.4MB. Free memory was 62.8MB in the beginning and 47.4MB in the end (delta: 15.4MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. * Witness Printer took 42.72ms. Allocated memory is still 117.4MB. Free memory was 46.7MB in the beginning and 45.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 22:14:11,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed08d630-4b72-4222-8997-199f8e0486e4/bin/ukojak-verify-EEHR8qb7sm/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