./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-ext3-properties/dll_nondet_free_order-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74017acc-af59-46dc-a187-78e084d89db6/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74017acc-af59-46dc-a187-78e084d89db6/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74017acc-af59-46dc-a187-78e084d89db6/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74017acc-af59-46dc-a187-78e084d89db6/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/list-ext3-properties/dll_nondet_free_order-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74017acc-af59-46dc-a187-78e084d89db6/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74017acc-af59-46dc-a187-78e084d89db6/bin/ukojak-verify-ENZ3QT5qd3 --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 2f737570030041640fd86c7d2770b30b4e6ee4ac0d1c521887700aab87fb1426 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 01:59:40,304 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 01:59:40,398 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74017acc-af59-46dc-a187-78e084d89db6/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-11-25 01:59:40,404 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 01:59:40,404 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 01:59:40,442 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 01:59:40,443 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 01:59:40,443 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 01:59:40,444 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 01:59:40,444 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 01:59:40,444 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 01:59:40,444 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 01:59:40,444 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 01:59:40,444 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 01:59:40,444 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 01:59:40,444 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 01:59:40,445 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 01:59:40,445 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 01:59:40,445 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 01:59:40,445 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 01:59:40,445 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 01:59:40,445 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 01:59:40,448 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 01:59:40,449 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 01:59:40,449 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 01:59:40,449 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 01:59:40,450 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 01:59:40,450 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 01:59:40,450 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 01:59:40,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 01:59:40,450 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 01:59:40,450 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 01:59:40,451 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 01:59:40,451 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 01:59:40,451 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 01:59:40,451 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_74017acc-af59-46dc-a187-78e084d89db6/bin/ukojak-verify-ENZ3QT5qd3 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 -> 2f737570030041640fd86c7d2770b30b4e6ee4ac0d1c521887700aab87fb1426 [2024-11-25 01:59:40,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 01:59:40,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 01:59:40,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 01:59:40,815 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 01:59:40,816 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 01:59:40,817 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74017acc-af59-46dc-a187-78e084d89db6/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/list-ext3-properties/dll_nondet_free_order-2.i [2024-11-25 01:59:43,841 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74017acc-af59-46dc-a187-78e084d89db6/bin/ukojak-verify-ENZ3QT5qd3/data/d89f30722/1f0fb8e59ce244fa99321805acc58d46/FLAG40125e587 [2024-11-25 01:59:44,216 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 01:59:44,216 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74017acc-af59-46dc-a187-78e084d89db6/sv-benchmarks/c/list-ext3-properties/dll_nondet_free_order-2.i [2024-11-25 01:59:44,229 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74017acc-af59-46dc-a187-78e084d89db6/bin/ukojak-verify-ENZ3QT5qd3/data/d89f30722/1f0fb8e59ce244fa99321805acc58d46/FLAG40125e587 [2024-11-25 01:59:44,414 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74017acc-af59-46dc-a187-78e084d89db6/bin/ukojak-verify-ENZ3QT5qd3/data/d89f30722/1f0fb8e59ce244fa99321805acc58d46 [2024-11-25 01:59:44,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 01:59:44,419 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 01:59:44,421 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 01:59:44,421 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 01:59:44,428 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 01:59:44,429 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 01:59:44" (1/1) ... [2024-11-25 01:59:44,432 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7de3cac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:59:44, skipping insertion in model container [2024-11-25 01:59:44,432 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 01:59:44" (1/1) ... [2024-11-25 01:59:44,480 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 01:59:44,912 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 01:59:44,924 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 01:59:44,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 01:59:45,033 INFO L204 MainTranslator]: Completed translation [2024-11-25 01:59:45,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:59:45 WrapperNode [2024-11-25 01:59:45,034 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 01:59:45,035 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 01:59:45,036 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 01:59:45,036 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 01:59:45,050 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:59:45" (1/1) ... [2024-11-25 01:59:45,064 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:59:45" (1/1) ... [2024-11-25 01:59:45,092 INFO L138 Inliner]: procedures = 116, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 88 [2024-11-25 01:59:45,094 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 01:59:45,095 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 01:59:45,095 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 01:59:45,095 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 01:59:45,102 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:59:45" (1/1) ... [2024-11-25 01:59:45,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:59:45" (1/1) ... [2024-11-25 01:59:45,106 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:59:45" (1/1) ... [2024-11-25 01:59:45,109 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:59:45" (1/1) ... [2024-11-25 01:59:45,121 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:59:45" (1/1) ... [2024-11-25 01:59:45,122 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:59:45" (1/1) ... [2024-11-25 01:59:45,130 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:59:45" (1/1) ... [2024-11-25 01:59:45,136 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:59:45" (1/1) ... [2024-11-25 01:59:45,136 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:59:45" (1/1) ... [2024-11-25 01:59:45,138 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 01:59:45,139 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 01:59:45,140 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 01:59:45,143 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 01:59:45,144 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:59:45" (1/1) ... [2024-11-25 01:59:45,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 01:59:45,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74017acc-af59-46dc-a187-78e084d89db6/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 01:59:45,191 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74017acc-af59-46dc-a187-78e084d89db6/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 01:59:45,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74017acc-af59-46dc-a187-78e084d89db6/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 01:59:45,221 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2024-11-25 01:59:45,222 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2024-11-25 01:59:45,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-25 01:59:45,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-25 01:59:45,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-25 01:59:45,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 01:59:45,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 01:59:45,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 01:59:45,353 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 01:59:45,355 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 01:59:45,382 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2024-11-25 01:59:45,609 INFO L? ?]: Removed 40 outVars from TransFormulas that were not future-live. [2024-11-25 01:59:45,611 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 01:59:45,777 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 01:59:45,777 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-25 01:59:45,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 01:59:45 BoogieIcfgContainer [2024-11-25 01:59:45,778 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 01:59:45,779 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 01:59:45,779 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 01:59:45,790 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 01:59:45,790 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 01:59:45" (1/1) ... [2024-11-25 01:59:45,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 01:59:45,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 01:59:45,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 01:59:45,872 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 01:59:45,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-25 01:59:45,874 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 01:59:45,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 01:59:46,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 01:59:46,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 01:59:46,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 01:59:46,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2024-11-25 01:59:46,320 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-11-25 01:59:46,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 01:59:46,321 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 01:59:46,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 01:59:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 01:59:46,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 01:59:46,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 01:59:46,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-11-25 01:59:46,673 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-11-25 01:59:46,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-25 01:59:46,673 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 01:59:46,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 01:59:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 01:59:46,826 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-25 01:59:46,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 01:59:46,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2024-11-25 01:59:46,974 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2024-11-25 01:59:46,974 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-25 01:59:46,975 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2024-11-25 01:59:46,983 INFO L726 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2024-11-25 01:59:47,122 INFO L77 FloydHoareUtils]: At program point L561(line 561) the Hoare annotation is: true [2024-11-25 01:59:47,122 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 560 562) the Hoare annotation is: true [2024-11-25 01:59:47,122 INFO L75 FloydHoareUtils]: For program point myexitEXIT(lines 560 562) no Hoare annotation was computed. [2024-11-25 01:59:47,122 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 579) no Hoare annotation was computed. [2024-11-25 01:59:47,122 INFO L77 FloydHoareUtils]: At program point L573(lines 573 575) the Hoare annotation is: (or (and (<= |ULTIMATE.start_dll_circular_create_~len#1| 3) (<= 3 |ULTIMATE.start_dll_circular_create_~len#1|)) (and (<= 2 |ULTIMATE.start_dll_circular_create_~len#1|) (< |ULTIMATE.start_dll_circular_create_~len#1| 3))) [2024-11-25 01:59:47,122 INFO L77 FloydHoareUtils]: At program point L573-1(lines 573 575) the Hoare annotation is: (or (and (<= |ULTIMATE.start_dll_circular_create_~len#1| 3) (<= 3 |ULTIMATE.start_dll_circular_create_~len#1|)) (and (<= 2 |ULTIMATE.start_dll_circular_create_~len#1|) (< |ULTIMATE.start_dll_circular_create_~len#1| 3))) [2024-11-25 01:59:47,123 INFO L77 FloydHoareUtils]: At program point L565(lines 565 567) the Hoare annotation is: (and (<= |ULTIMATE.start_dll_circular_create_~len#1| 3) (<= 3 |ULTIMATE.start_dll_circular_create_~len#1|)) [2024-11-25 01:59:47,123 INFO L77 FloydHoareUtils]: At program point L565-1(lines 565 567) the Hoare annotation is: (and (<= |ULTIMATE.start_dll_circular_create_~len#1| 3) (<= 3 |ULTIMATE.start_dll_circular_create_~len#1|)) [2024-11-25 01:59:47,123 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 579) no Hoare annotation was computed. [2024-11-25 01:59:47,123 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-25 01:59:47,123 INFO L77 FloydHoareUtils]: At program point L574(line 574) the Hoare annotation is: true [2024-11-25 01:59:47,123 INFO L77 FloydHoareUtils]: At program point L566(line 566) the Hoare annotation is: true [2024-11-25 01:59:47,123 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-25 01:59:47,123 INFO L77 FloydHoareUtils]: At program point L579(line 579) the Hoare annotation is: (or (and (<= 3 |ULTIMATE.start_dll_circular_create_#t~post4#1|) (<= |ULTIMATE.start_dll_circular_create_#t~post4#1| 3)) (and (< |ULTIMATE.start_dll_circular_create_#t~post4#1| 3) (<= 2 |ULTIMATE.start_dll_circular_create_#t~post4#1|))) [2024-11-25 01:59:47,124 INFO L77 FloydHoareUtils]: At program point L579-1(line 579) the Hoare annotation is: (<= |ULTIMATE.start_dll_circular_create_#t~post4#1| 3) [2024-11-25 01:59:47,124 INFO L77 FloydHoareUtils]: At program point L571-3(lines 571 580) the Hoare annotation is: (<= |ULTIMATE.start_dll_circular_create_~len#1| 3) [2024-11-25 01:59:47,143 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL [2024-11-25 01:59:47,144 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID [2024-11-25 01:59:47,144 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID [2024-11-25 01:59:47,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 01:59:47 ImpRootNode [2024-11-25 01:59:47,145 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 01:59:47,145 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 01:59:47,145 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 01:59:47,146 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 01:59:47,146 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 01:59:45" (3/4) ... [2024-11-25 01:59:47,149 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-25 01:59:47,153 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure myexit [2024-11-25 01:59:47,159 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-25 01:59:47,159 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-25 01:59:47,159 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-25 01:59:47,159 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-25 01:59:47,246 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74017acc-af59-46dc-a187-78e084d89db6/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-25 01:59:47,246 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74017acc-af59-46dc-a187-78e084d89db6/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-25 01:59:47,247 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 01:59:47,248 INFO L158 Benchmark]: Toolchain (without parser) took 2829.08ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 47.3MB in the end (delta: 44.9MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2024-11-25 01:59:47,248 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 167.8MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 01:59:47,248 INFO L158 Benchmark]: CACSL2BoogieTranslator took 614.14ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 75.0MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 01:59:47,249 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.15ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 73.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 01:59:47,249 INFO L158 Benchmark]: Boogie Preprocessor took 43.53ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 72.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 01:59:47,249 INFO L158 Benchmark]: RCFGBuilder took 639.00ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 51.4MB in the end (delta: 21.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-25 01:59:47,250 INFO L158 Benchmark]: CodeCheck took 1365.96ms. Allocated memory is still 117.4MB. Free memory was 51.4MB in the beginning and 52.7MB in the end (delta: -1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 01:59:47,250 INFO L158 Benchmark]: Witness Printer took 101.35ms. Allocated memory is still 117.4MB. Free memory was 52.7MB in the beginning and 47.8MB in the end (delta: 4.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 01:59:47,252 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 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 50 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 86 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 40 mSDtfsCounter, 93 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 202 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 56 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 4/4 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 - PositiveResult [Line: 579]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 579]: 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: 571]: Loop Invariant Derived loop invariant: (len <= 3) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 167.8MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 614.14ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 75.0MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.15ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 73.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.53ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 72.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 639.00ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 51.4MB in the end (delta: 21.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 1365.96ms. Allocated memory is still 117.4MB. Free memory was 51.4MB in the beginning and 52.7MB in the end (delta: -1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 101.35ms. Allocated memory is still 117.4MB. Free memory was 52.7MB in the beginning and 47.8MB in the end (delta: 4.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID RESULT: Ultimate proved your program to be correct! [2024-11-25 01:59:47,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74017acc-af59-46dc-a187-78e084d89db6/bin/ukojak-verify-ENZ3QT5qd3/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