./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f824463-49da-4669-8cd4-c830af1d1139/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f824463-49da-4669-8cd4-c830af1d1139/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_8f824463-49da-4669-8cd4-c830af1d1139/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f824463-49da-4669-8cd4-c830af1d1139/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f824463-49da-4669-8cd4-c830af1d1139/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f824463-49da-4669-8cd4-c830af1d1139/bin/ukojak-verify-EEHR8qb7sm --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3b4637ab5710a1ca22a981e8047278048fbbf856825d3649b2cb9d48de11d175 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 20:38:35,177 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 20:38:35,250 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f824463-49da-4669-8cd4-c830af1d1139/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-11-13 20:38:35,256 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 20:38:35,257 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 20:38:35,290 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 20:38:35,291 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 20:38:35,291 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 20:38:35,292 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 20:38:35,292 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 20:38:35,292 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 20:38:35,292 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 20:38:35,293 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 20:38:35,293 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 20:38:35,293 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 20:38:35,293 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 20:38:35,293 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 20:38:35,293 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 20:38:35,293 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 20:38:35,293 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 20:38:35,294 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 20:38:35,294 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 20:38:35,294 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 20:38:35,294 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 20:38:35,298 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 20:38:35,298 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 20:38:35,298 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 20:38:35,299 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 20:38:35,299 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 20:38:35,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:38:35,299 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 20:38:35,299 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 20:38:35,299 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 20:38:35,299 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 20:38:35,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 20:38:35,299 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_8f824463-49da-4669-8cd4-c830af1d1139/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 ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b4637ab5710a1ca22a981e8047278048fbbf856825d3649b2cb9d48de11d175 [2024-11-13 20:38:35,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 20:38:35,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 20:38:35,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 20:38:35,698 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 20:38:35,700 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 20:38:35,702 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f824463-49da-4669-8cd4-c830af1d1139/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i Unable to find full path for "g++" [2024-11-13 20:38:37,848 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 20:38:38,303 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 20:38:38,304 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f824463-49da-4669-8cd4-c830af1d1139/sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i [2024-11-13 20:38:38,320 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f824463-49da-4669-8cd4-c830af1d1139/bin/ukojak-verify-EEHR8qb7sm/data/658125cfc/aecc4039445c4ff7a8ef1563b8ffc1aa/FLAG0836740a3 [2024-11-13 20:38:38,339 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f824463-49da-4669-8cd4-c830af1d1139/bin/ukojak-verify-EEHR8qb7sm/data/658125cfc/aecc4039445c4ff7a8ef1563b8ffc1aa [2024-11-13 20:38:38,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 20:38:38,346 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 20:38:38,347 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 20:38:38,348 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 20:38:38,355 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 20:38:38,358 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:38:38" (1/1) ... [2024-11-13 20:38:38,361 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66249944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:38:38, skipping insertion in model container [2024-11-13 20:38:38,362 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:38:38" (1/1) ... [2024-11-13 20:38:38,413 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 20:38:38,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:38:38,878 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 20:38:38,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:38:39,001 INFO L204 MainTranslator]: Completed translation [2024-11-13 20:38:39,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:38:39 WrapperNode [2024-11-13 20:38:39,003 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 20:38:39,004 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 20:38:39,005 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 20:38:39,005 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 20:38:39,013 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:38:39" (1/1) ... [2024-11-13 20:38:39,033 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:38:39" (1/1) ... [2024-11-13 20:38:39,065 INFO L138 Inliner]: procedures = 122, calls = 26, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 110 [2024-11-13 20:38:39,068 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 20:38:39,069 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 20:38:39,069 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 20:38:39,069 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 20:38:39,079 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:38:39" (1/1) ... [2024-11-13 20:38:39,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:38:39" (1/1) ... [2024-11-13 20:38:39,084 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:38:39" (1/1) ... [2024-11-13 20:38:39,087 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:38:39" (1/1) ... [2024-11-13 20:38:39,101 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:38:39" (1/1) ... [2024-11-13 20:38:39,112 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:38:39" (1/1) ... [2024-11-13 20:38:39,113 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:38:39" (1/1) ... [2024-11-13 20:38:39,118 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:38:39" (1/1) ... [2024-11-13 20:38:39,121 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 20:38:39,122 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 20:38:39,122 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 20:38:39,122 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 20:38:39,123 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:38:39" (1/1) ... [2024-11-13 20:38:39,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:38:39,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f824463-49da-4669-8cd4-c830af1d1139/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 20:38:39,170 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f824463-49da-4669-8cd4-c830af1d1139/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 20:38:39,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f824463-49da-4669-8cd4-c830af1d1139/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 20:38:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 20:38:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 20:38:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 20:38:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 20:38:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 20:38:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 20:38:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 20:38:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 20:38:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 20:38:39,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 20:38:39,348 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 20:38:39,351 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 20:38:39,553 INFO L? ?]: Removed 33 outVars from TransFormulas that were not future-live. [2024-11-13 20:38:39,554 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 20:38:39,672 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 20:38:39,672 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-13 20:38:39,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:38:39 BoogieIcfgContainer [2024-11-13 20:38:39,672 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 20:38:39,673 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 20:38:39,673 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 20:38:39,685 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 20:38:39,685 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:38:39" (1/1) ... [2024-11-13 20:38:39,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 20:38:39,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:38:39,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2024-11-13 20:38:39,745 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2024-11-13 20:38:39,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-13 20:38:39,747 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:38:39,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:38:39,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:38:40,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:38:40,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:38:40,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2024-11-13 20:38:40,358 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2024-11-13 20:38:40,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-13 20:38:40,358 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:38:40,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:38:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:38:40,575 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 20:38:40,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:38:40,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2024-11-13 20:38:40,880 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2024-11-13 20:38:40,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 20:38:40,883 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:38:40,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:38:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:38:41,152 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 20:38:41,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:38:41,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2024-11-13 20:38:41,407 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2024-11-13 20:38:41,408 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 20:38:41,408 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2024-11-13 20:38:41,418 INFO L729 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2024-11-13 20:38:41,560 INFO L77 FloydHoareUtils]: At program point L601-5(lines 601 603) the Hoare annotation is: true [2024-11-13 20:38:41,560 INFO L77 FloydHoareUtils]: At program point L593(line 593) the Hoare annotation is: (or (and (<= 5 |ULTIMATE.start_dll_create_#t~post4#1|) (<= |ULTIMATE.start_dll_create_#t~post4#1| 5)) (and (<= 1 |ULTIMATE.start_dll_create_#t~post4#1|) (< |ULTIMATE.start_dll_create_#t~post4#1| 5))) [2024-11-13 20:38:41,562 INFO L77 FloydHoareUtils]: At program point L593-1(line 593) the Hoare annotation is: (<= |ULTIMATE.start_dll_create_#t~post4#1| 5) [2024-11-13 20:38:41,562 INFO L77 FloydHoareUtils]: At program point main_returnLabel#1(lines 597 617) the Hoare annotation is: true [2024-11-13 20:38:41,563 INFO L77 FloydHoareUtils]: At program point L581(lines 581 583) the Hoare annotation is: (or (and (<= 5 |ULTIMATE.start_dll_create_~len#1|) (<= |ULTIMATE.start_dll_create_~len#1| 5)) (and (< |ULTIMATE.start_dll_create_~len#1| 5) (<= 1 |ULTIMATE.start_dll_create_~len#1|))) [2024-11-13 20:38:41,563 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 593) no Hoare annotation was computed. [2024-11-13 20:38:41,563 INFO L77 FloydHoareUtils]: At program point L606-1(lines 606 613) the Hoare annotation is: true [2024-11-13 20:38:41,564 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 593) no Hoare annotation was computed. [2024-11-13 20:38:41,564 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-13 20:38:41,564 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-13 20:38:41,564 INFO L77 FloydHoareUtils]: At program point L579-2(lines 579 594) the Hoare annotation is: (<= |ULTIMATE.start_dll_create_~len#1| 5) [2024-11-13 20:38:41,565 INFO L77 FloydHoareUtils]: At program point L575(line 575) the Hoare annotation is: true [2024-11-13 20:38:41,565 INFO L77 FloydHoareUtils]: At program point L608-5(lines 608 610) the Hoare annotation is: true [2024-11-13 20:38:41,568 INFO L77 FloydHoareUtils]: At program point L600-1(lines 600 605) the Hoare annotation is: true [2024-11-13 20:38:41,568 INFO L77 FloydHoareUtils]: At program point main_ERROR#1(line 615) the Hoare annotation is: true [2024-11-13 20:38:41,569 INFO L77 FloydHoareUtils]: At program point L600-3(lines 600 605) the Hoare annotation is: true [2024-11-13 20:38:41,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 08:38:41 ImpRootNode [2024-11-13 20:38:41,580 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 20:38:41,581 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 20:38:41,581 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 20:38:41,581 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 20:38:41,582 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:38:39" (3/4) ... [2024-11-13 20:38:41,589 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 20:38:41,602 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-13 20:38:41,604 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-13 20:38:41,604 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 20:38:41,605 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 20:38:41,697 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f824463-49da-4669-8cd4-c830af1d1139/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 20:38:41,697 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f824463-49da-4669-8cd4-c830af1d1139/bin/ukojak-verify-EEHR8qb7sm/witness.yml [2024-11-13 20:38:41,697 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 20:38:41,698 INFO L158 Benchmark]: Toolchain (without parser) took 3354.53ms. Allocated memory is still 167.8MB. Free memory was 124.5MB in the beginning and 70.5MB in the end (delta: 54.0MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. [2024-11-13 20:38:41,699 INFO L158 Benchmark]: CDTParser took 1.72ms. Allocated memory is still 167.8MB. Free memory is still 106.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:38:41,699 INFO L158 Benchmark]: CACSL2BoogieTranslator took 656.13ms. Allocated memory is still 167.8MB. Free memory was 124.5MB in the beginning and 107.1MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 20:38:41,699 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.83ms. Allocated memory is still 167.8MB. Free memory was 107.1MB in the beginning and 105.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:38:41,700 INFO L158 Benchmark]: Boogie Preprocessor took 52.13ms. Allocated memory is still 167.8MB. Free memory was 105.6MB in the beginning and 104.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:38:41,700 INFO L158 Benchmark]: RCFGBuilder took 550.85ms. Allocated memory is still 167.8MB. Free memory was 104.3MB in the beginning and 84.4MB in the end (delta: 19.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 20:38:41,701 INFO L158 Benchmark]: CodeCheck took 1907.21ms. Allocated memory is still 167.8MB. Free memory was 84.4MB in the beginning and 76.2MB in the end (delta: 8.2MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2024-11-13 20:38:41,701 INFO L158 Benchmark]: Witness Printer took 116.04ms. Allocated memory is still 167.8MB. Free memory was 75.5MB in the beginning and 70.5MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 20:38:41,703 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, 16 locations, 2 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, 17 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 12 mSDtfsCounter, 93 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 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 - PositiveResult [Line: 593]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 593]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 579]: Loop Invariant Derived loop invariant: (len <= 5) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.72ms. Allocated memory is still 167.8MB. Free memory is still 106.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 656.13ms. Allocated memory is still 167.8MB. Free memory was 124.5MB in the beginning and 107.1MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.83ms. Allocated memory is still 167.8MB. Free memory was 107.1MB in the beginning and 105.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 52.13ms. Allocated memory is still 167.8MB. Free memory was 105.6MB in the beginning and 104.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 550.85ms. Allocated memory is still 167.8MB. Free memory was 104.3MB in the beginning and 84.4MB in the end (delta: 19.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 1907.21ms. Allocated memory is still 167.8MB. Free memory was 84.4MB in the beginning and 76.2MB in the end (delta: 8.2MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * Witness Printer took 116.04ms. Allocated memory is still 167.8MB. Free memory was 75.5MB in the beginning and 70.5MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-13 20:38:41,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f824463-49da-4669-8cd4-c830af1d1139/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 Result: TRUE