./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-ext3-properties/dll_nondet_free_order-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13c36ed-070b-4eab-8238-1f7ab605982d/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13c36ed-070b-4eab-8238-1f7ab605982d/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13c36ed-070b-4eab-8238-1f7ab605982d/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13c36ed-070b-4eab-8238-1f7ab605982d/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/list-ext3-properties/dll_nondet_free_order-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13c36ed-070b-4eab-8238-1f7ab605982d/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13c36ed-070b-4eab-8238-1f7ab605982d/bin/ukojak-verify-ImItNfHLgk --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 f6eaec015dd6fdb220ef146938a83a65106037c982563310cbbb34d0417543f1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:47:57,713 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:47:57,810 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13c36ed-070b-4eab-8238-1f7ab605982d/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-11-08 19:47:57,816 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:47:57,816 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 19:47:57,861 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:47:57,862 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:47:57,862 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 19:47:57,863 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:47:57,864 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:47:57,866 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:47:57,867 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:47:57,867 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:47:57,868 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:47:57,868 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:47:57,868 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:47:57,869 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:47:57,869 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:47:57,869 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:47:57,870 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:47:57,873 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 19:47:57,874 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 19:47:57,874 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:47:57,874 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:47:57,875 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:47:57,875 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 19:47:57,876 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 19:47:57,876 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 19:47:57,876 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:47:57,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:47:57,890 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:47:57,890 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:47:57,891 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:47:57,891 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 19:47:57,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:47:57,892 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13c36ed-070b-4eab-8238-1f7ab605982d/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13c36ed-070b-4eab-8238-1f7ab605982d/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6eaec015dd6fdb220ef146938a83a65106037c982563310cbbb34d0417543f1 [2024-11-08 19:47:58,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:47:58,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:47:58,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:47:58,168 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:47:58,168 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:47:58,170 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13c36ed-070b-4eab-8238-1f7ab605982d/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/list-ext3-properties/dll_nondet_free_order-1.i Unable to find full path for "g++" [2024-11-08 19:48:00,121 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:48:00,359 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:48:00,359 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13c36ed-070b-4eab-8238-1f7ab605982d/sv-benchmarks/c/list-ext3-properties/dll_nondet_free_order-1.i [2024-11-08 19:48:00,379 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13c36ed-070b-4eab-8238-1f7ab605982d/bin/ukojak-verify-ImItNfHLgk/data/8e7977481/fe577aaeba7d434490f60b91e89e3851/FLAG8028b37f2 [2024-11-08 19:48:00,395 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13c36ed-070b-4eab-8238-1f7ab605982d/bin/ukojak-verify-ImItNfHLgk/data/8e7977481/fe577aaeba7d434490f60b91e89e3851 [2024-11-08 19:48:00,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:48:00,400 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:48:00,401 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:48:00,402 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:48:00,409 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:48:00,423 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:48:00" (1/1) ... [2024-11-08 19:48:00,425 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7080fdf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:48:00, skipping insertion in model container [2024-11-08 19:48:00,425 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:48:00" (1/1) ... [2024-11-08 19:48:00,474 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:48:00,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:48:00,858 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:48:00,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:48:00,938 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:48:00,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:48:00 WrapperNode [2024-11-08 19:48:00,938 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:48:00,940 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:48:00,940 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:48:00,940 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:48:00,948 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:48:00" (1/1) ... [2024-11-08 19:48:00,966 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:48:00" (1/1) ... [2024-11-08 19:48:00,992 INFO L138 Inliner]: procedures = 116, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 89 [2024-11-08 19:48:00,993 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:48:00,994 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:48:00,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:48:00,996 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:48:01,006 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:48:00" (1/1) ... [2024-11-08 19:48:01,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:48:00" (1/1) ... [2024-11-08 19:48:01,010 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:48:00" (1/1) ... [2024-11-08 19:48:01,010 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:48:00" (1/1) ... [2024-11-08 19:48:01,020 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:48:00" (1/1) ... [2024-11-08 19:48:01,026 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:48:00" (1/1) ... [2024-11-08 19:48:01,028 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:48:00" (1/1) ... [2024-11-08 19:48:01,029 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:48:00" (1/1) ... [2024-11-08 19:48:01,031 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:48:01,032 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:48:01,032 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:48:01,032 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:48:01,033 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:48:00" (1/1) ... [2024-11-08 19:48:01,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:48:01,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13c36ed-070b-4eab-8238-1f7ab605982d/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 19:48:01,069 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13c36ed-070b-4eab-8238-1f7ab605982d/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 19:48:01,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13c36ed-070b-4eab-8238-1f7ab605982d/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 19:48:01,109 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2024-11-08 19:48:01,110 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2024-11-08 19:48:01,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 19:48:01,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-08 19:48:01,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-08 19:48:01,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 19:48:01,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:48:01,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:48:01,257 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:48:01,259 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:48:01,288 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2024-11-08 19:48:01,476 INFO L? ?]: Removed 42 outVars from TransFormulas that were not future-live. [2024-11-08 19:48:01,476 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:48:01,611 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:48:01,611 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:48:01,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:48:01 BoogieIcfgContainer [2024-11-08 19:48:01,612 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:48:01,613 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 19:48:01,613 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 19:48:01,623 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 19:48:01,624 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:48:01" (1/1) ... [2024-11-08 19:48:01,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:48:01,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:48:01,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2024-11-08 19:48:01,691 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2024-11-08 19:48:01,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 19:48:01,693 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:48:01,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:48:01,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:48:02,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:48:02,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:48:02,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2024-11-08 19:48:02,175 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2024-11-08 19:48:02,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 19:48:02,176 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:48:02,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:48:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:48:02,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:48:02,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:48:02,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2024-11-08 19:48:02,519 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2024-11-08 19:48:02,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-08 19:48:02,520 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:48:02,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:48:02,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:48:02,679 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 19:48:02,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:48:02,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2024-11-08 19:48:02,843 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2024-11-08 19:48:02,843 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 19:48:02,844 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2024-11-08 19:48:02,852 INFO L729 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2024-11-08 19:48:02,993 INFO L77 FloydHoareUtils]: At program point L561(line 561) the Hoare annotation is: true [2024-11-08 19:48:02,994 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 560 562) the Hoare annotation is: true [2024-11-08 19:48:02,994 INFO L75 FloydHoareUtils]: For program point myexitEXIT(lines 560 562) no Hoare annotation was computed. [2024-11-08 19:48:02,994 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 579) no Hoare annotation was computed. [2024-11-08 19:48:02,994 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))) [2024-11-08 19:48:02,995 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))) [2024-11-08 19:48:02,995 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|)) [2024-11-08 19:48:02,995 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|)) [2024-11-08 19:48:02,995 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 579) no Hoare annotation was computed. [2024-11-08 19:48:02,996 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-08 19:48:02,996 INFO L77 FloydHoareUtils]: At program point L574(line 574) the Hoare annotation is: true [2024-11-08 19:48:02,996 INFO L77 FloydHoareUtils]: At program point L566(line 566) the Hoare annotation is: true [2024-11-08 19:48:02,996 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-08 19:48:02,996 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|))) [2024-11-08 19:48:02,997 INFO L77 FloydHoareUtils]: At program point L579-1(line 579) the Hoare annotation is: (<= |ULTIMATE.start_dll_circular_create_#t~post4#1| 3) [2024-11-08 19:48:02,997 INFO L77 FloydHoareUtils]: At program point L571-1(lines 571 580) 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))) [2024-11-08 19:48:02,997 INFO L77 FloydHoareUtils]: At program point L571-3(lines 571 580) the Hoare annotation is: (<= |ULTIMATE.start_dll_circular_create_~len#1| 3) [2024-11-08 19:48:02,997 INFO L77 FloydHoareUtils]: At program point L571-4(lines 571 580) the Hoare annotation is: true [2024-11-08 19:48:03,015 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL [2024-11-08 19:48:03,016 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID [2024-11-08 19:48:03,016 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID [2024-11-08 19:48:03,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 07:48:03 ImpRootNode [2024-11-08 19:48:03,017 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 19:48:03,018 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:48:03,018 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:48:03,018 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:48:03,018 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:48:01" (3/4) ... [2024-11-08 19:48:03,021 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 19:48:03,024 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure myexit [2024-11-08 19:48:03,029 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2024-11-08 19:48:03,030 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-08 19:48:03,030 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-08 19:48:03,030 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 19:48:03,127 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13c36ed-070b-4eab-8238-1f7ab605982d/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-08 19:48:03,128 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13c36ed-070b-4eab-8238-1f7ab605982d/bin/ukojak-verify-ImItNfHLgk/witness.yml [2024-11-08 19:48:03,128 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:48:03,129 INFO L158 Benchmark]: Toolchain (without parser) took 2729.29ms. Allocated memory was 127.9MB in the beginning and 169.9MB in the end (delta: 41.9MB). Free memory was 66.9MB in the beginning and 80.8MB in the end (delta: -13.9MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2024-11-08 19:48:03,129 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 127.9MB. Free memory is still 93.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:48:03,130 INFO L158 Benchmark]: CACSL2BoogieTranslator took 537.50ms. Allocated memory was 127.9MB in the beginning and 169.9MB in the end (delta: 41.9MB). Free memory was 66.7MB in the beginning and 125.8MB in the end (delta: -59.1MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2024-11-08 19:48:03,130 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.47ms. Allocated memory is still 169.9MB. Free memory was 125.7MB in the beginning and 123.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:48:03,131 INFO L158 Benchmark]: Boogie Preprocessor took 37.69ms. Allocated memory is still 169.9MB. Free memory was 123.7MB in the beginning and 122.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:48:03,131 INFO L158 Benchmark]: RCFGBuilder took 580.02ms. Allocated memory is still 169.9MB. Free memory was 122.3MB in the beginning and 100.6MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-08 19:48:03,131 INFO L158 Benchmark]: CodeCheck took 1404.69ms. Allocated memory is still 169.9MB. Free memory was 100.6MB in the beginning and 86.1MB in the end (delta: 14.5MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2024-11-08 19:48:03,132 INFO L158 Benchmark]: Witness Printer took 110.35ms. Allocated memory is still 169.9MB. Free memory was 86.1MB in the beginning and 80.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 19:48:03,134 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, 18 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, 61 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 59 mSDsluCounter, 86 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 119 IncrementalHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 40 mSDtfsCounter, 119 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 232 GetRequests, 212 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, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 66 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 5/5 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: 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 0.48ms. Allocated memory is still 127.9MB. Free memory is still 93.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 537.50ms. Allocated memory was 127.9MB in the beginning and 169.9MB in the end (delta: 41.9MB). Free memory was 66.7MB in the beginning and 125.8MB in the end (delta: -59.1MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.47ms. Allocated memory is still 169.9MB. Free memory was 125.7MB in the beginning and 123.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.69ms. Allocated memory is still 169.9MB. Free memory was 123.7MB in the beginning and 122.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 580.02ms. Allocated memory is still 169.9MB. Free memory was 122.3MB in the beginning and 100.6MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * CodeCheck took 1404.69ms. Allocated memory is still 169.9MB. Free memory was 100.6MB in the beginning and 86.1MB in the end (delta: 14.5MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * Witness Printer took 110.35ms. Allocated memory is still 169.9MB. Free memory was 86.1MB in the beginning and 80.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. 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! [2024-11-08 19:48:03,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13c36ed-070b-4eab-8238-1f7ab605982d/bin/ukojak-verify-ImItNfHLgk/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