./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45f9b5e-8068-474f-ab8c-a51af4a48da3/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45f9b5e-8068-474f-ab8c-a51af4a48da3/bin/ukojak-pZX7IvK2PQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45f9b5e-8068-474f-ab8c-a51af4a48da3/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45f9b5e-8068-474f-ab8c-a51af4a48da3/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45f9b5e-8068-474f-ab8c-a51af4a48da3/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45f9b5e-8068-474f-ab8c-a51af4a48da3/bin/ukojak-pZX7IvK2PQ --witnessprinter.witness.filename witness.graphml --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 3340815bef7e21ae2d4803d7059577c1761bb3b7b4bb24b2b34d5d0d0054fd10 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 18:28:21,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 18:28:21,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 18:28:21,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 18:28:21,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 18:28:21,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 18:28:21,329 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 18:28:21,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 18:28:21,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 18:28:21,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 18:28:21,334 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 18:28:21,335 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 18:28:21,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 18:28:21,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 18:28:21,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 18:28:21,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 18:28:21,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 18:28:21,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 18:28:21,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 18:28:21,345 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 18:28:21,347 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 18:28:21,348 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 18:28:21,349 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 18:28:21,350 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 18:28:21,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 18:28:21,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 18:28:21,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 18:28:21,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 18:28:21,357 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 18:28:21,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 18:28:21,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 18:28:21,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 18:28:21,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 18:28:21,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 18:28:21,363 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 18:28:21,363 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 18:28:21,364 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 18:28:21,364 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 18:28:21,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 18:28:21,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 18:28:21,367 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 18:28:21,373 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45f9b5e-8068-474f-ab8c-a51af4a48da3/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-32bit-Kojak_Default.epf [2022-11-20 18:28:21,399 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 18:28:21,399 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 18:28:21,400 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 18:28:21,400 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 18:28:21,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 18:28:21,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 18:28:21,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 18:28:21,402 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 18:28:21,402 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 18:28:21,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 18:28:21,403 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 18:28:21,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 18:28:21,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 18:28:21,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 18:28:21,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 18:28:21,404 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 18:28:21,404 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 18:28:21,405 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 18:28:21,405 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 18:28:21,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 18:28:21,405 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 18:28:21,406 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 18:28:21,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 18:28:21,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:28:21,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 18:28:21,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 18:28:21,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 18:28:21,407 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 18:28:21,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 18:28:21,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 18:28:21,408 INFO L138 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_d45f9b5e-8068-474f-ab8c-a51af4a48da3/bin/ukojak-pZX7IvK2PQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45f9b5e-8068-474f-ab8c-a51af4a48da3/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3340815bef7e21ae2d4803d7059577c1761bb3b7b4bb24b2b34d5d0d0054fd10 [2022-11-20 18:28:21,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 18:28:21,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 18:28:21,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 18:28:21,690 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 18:28:21,691 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 18:28:21,692 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45f9b5e-8068-474f-ab8c-a51af4a48da3/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i [2022-11-20 18:28:24,723 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 18:28:24,980 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 18:28:24,981 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45f9b5e-8068-474f-ab8c-a51af4a48da3/sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i [2022-11-20 18:28:24,994 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45f9b5e-8068-474f-ab8c-a51af4a48da3/bin/ukojak-pZX7IvK2PQ/data/22afd3186/e24c6727476c4e94aa93236425096c5b/FLAG7fbd1cd72 [2022-11-20 18:28:25,009 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45f9b5e-8068-474f-ab8c-a51af4a48da3/bin/ukojak-pZX7IvK2PQ/data/22afd3186/e24c6727476c4e94aa93236425096c5b [2022-11-20 18:28:25,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 18:28:25,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 18:28:25,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 18:28:25,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 18:28:25,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 18:28:25,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:28:25" (1/1) ... [2022-11-20 18:28:25,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@160d0abd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:28:25, skipping insertion in model container [2022-11-20 18:28:25,021 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:28:25" (1/1) ... [2022-11-20 18:28:25,029 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 18:28:25,063 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 18:28:25,416 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45f9b5e-8068-474f-ab8c-a51af4a48da3/sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i[24151,24164] [2022-11-20 18:28:25,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:28:25,430 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 18:28:25,490 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45f9b5e-8068-474f-ab8c-a51af4a48da3/sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i[24151,24164] [2022-11-20 18:28:25,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:28:25,533 INFO L208 MainTranslator]: Completed translation [2022-11-20 18:28:25,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:28:25 WrapperNode [2022-11-20 18:28:25,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 18:28:25,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 18:28:25,538 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 18:28:25,538 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 18:28:25,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:28:25" (1/1) ... [2022-11-20 18:28:25,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:28:25" (1/1) ... [2022-11-20 18:28:25,594 INFO L138 Inliner]: procedures = 126, calls = 36, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 123 [2022-11-20 18:28:25,594 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 18:28:25,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 18:28:25,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 18:28:25,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 18:28:25,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:28:25" (1/1) ... [2022-11-20 18:28:25,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:28:25" (1/1) ... [2022-11-20 18:28:25,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:28:25" (1/1) ... [2022-11-20 18:28:25,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:28:25" (1/1) ... [2022-11-20 18:28:25,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:28:25" (1/1) ... [2022-11-20 18:28:25,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:28:25" (1/1) ... [2022-11-20 18:28:25,621 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:28:25" (1/1) ... [2022-11-20 18:28:25,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:28:25" (1/1) ... [2022-11-20 18:28:25,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 18:28:25,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 18:28:25,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 18:28:25,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 18:28:25,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:28:25" (1/1) ... [2022-11-20 18:28:25,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:28:25,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45f9b5e-8068-474f-ab8c-a51af4a48da3/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 18:28:25,662 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45f9b5e-8068-474f-ab8c-a51af4a48da3/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 18:28:25,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45f9b5e-8068-474f-ab8c-a51af4a48da3/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 18:28:25,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 18:28:25,703 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2022-11-20 18:28:25,703 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2022-11-20 18:28:25,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 18:28:25,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 18:28:25,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 18:28:25,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 18:28:25,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 18:28:25,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 18:28:25,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 18:28:25,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 18:28:25,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 18:28:25,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 18:28:25,826 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 18:28:25,829 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 18:28:26,198 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 18:28:26,268 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 18:28:26,269 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-20 18:28:26,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:28:26 BoogieIcfgContainer [2022-11-20 18:28:26,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 18:28:26,273 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 18:28:26,274 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 18:28:26,284 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 18:28:26,284 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:28:26" (1/1) ... [2022-11-20 18:28:26,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:28:26,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:28:26,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 28 states and 36 transitions. [2022-11-20 18:28:26,366 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2022-11-20 18:28:26,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-20 18:28:26,371 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:28:26,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:28:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:28:26,802 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 18:28:26,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:28:26,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 32 states and 42 transitions. [2022-11-20 18:28:26,938 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2022-11-20 18:28:26,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 18:28:26,939 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:28:26,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:28:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:28:27,083 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 18:28:27,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:28:27,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 33 states and 43 transitions. [2022-11-20 18:28:27,113 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2022-11-20 18:28:27,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-20 18:28:27,114 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:28:27,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:28:27,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:28:27,392 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-20 18:28:27,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:28:27,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 27 states and 34 transitions. [2022-11-20 18:28:27,475 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2022-11-20 18:28:27,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-20 18:28:27,477 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:28:27,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:28:27,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:28:27,565 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 18:28:27,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:28:27,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 27 states and 33 transitions. [2022-11-20 18:28:27,580 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2022-11-20 18:28:27,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 18:28:27,581 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:28:27,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:28:27,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:28:27,730 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 18:28:27,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:28:27,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 34 states and 45 transitions. [2022-11-20 18:28:27,800 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2022-11-20 18:28:27,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-20 18:28:27,801 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:28:27,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:28:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:28:27,913 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 18:28:27,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:28:27,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 35 states and 46 transitions. [2022-11-20 18:28:27,937 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 46 transitions. [2022-11-20 18:28:27,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-20 18:28:27,938 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:28:27,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:28:27,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:28:27,991 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 18:28:28,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:28:28,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 35 states and 45 transitions. [2022-11-20 18:28:28,005 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2022-11-20 18:28:28,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-20 18:28:28,007 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:28:28,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:28:28,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:28:28,171 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 18:28:28,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:28:28,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 39 states and 51 transitions. [2022-11-20 18:28:28,495 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 51 transitions. [2022-11-20 18:28:28,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 18:28:28,501 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:28:28,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:28:28,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:28:28,599 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 18:28:28,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:28:28,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 42 states and 54 transitions. [2022-11-20 18:28:28,613 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 54 transitions. [2022-11-20 18:28:28,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-20 18:28:28,614 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:28:28,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:28:28,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:28:28,764 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 18:28:28,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:28:28,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 49 states and 66 transitions. [2022-11-20 18:28:28,950 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 66 transitions. [2022-11-20 18:28:28,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-20 18:28:28,951 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:28:28,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:28:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:28:29,120 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 18:28:29,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:28:29,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 57 states and 77 transitions. [2022-11-20 18:28:29,495 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 77 transitions. [2022-11-20 18:28:29,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-20 18:28:29,495 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:28:29,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:28:29,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:28:29,603 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 18:28:29,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:28:29,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 61 states and 83 transitions. [2022-11-20 18:28:29,954 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 83 transitions. [2022-11-20 18:28:29,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-20 18:28:29,954 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:28:29,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:28:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:28:30,085 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 18:28:30,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:28:30,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 64 states and 86 transitions. [2022-11-20 18:28:30,101 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 86 transitions. [2022-11-20 18:28:30,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-20 18:28:30,102 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:28:30,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:28:30,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:28:30,199 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 18:28:30,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:28:30,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 55 states and 72 transitions. [2022-11-20 18:28:30,215 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 72 transitions. [2022-11-20 18:28:30,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-20 18:28:30,216 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:28:30,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:28:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:28:30,621 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 18:28:33,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:28:33,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 71 states and 96 transitions. [2022-11-20 18:28:33,037 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 96 transitions. [2022-11-20 18:28:33,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-20 18:28:33,038 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:28:33,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:28:33,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:28:33,380 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-20 18:28:33,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:28:33,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 71 states and 94 transitions. [2022-11-20 18:28:33,883 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 94 transitions. [2022-11-20 18:28:33,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-20 18:28:33,883 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:28:33,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:28:33,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:28:34,075 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 18:28:34,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:28:34,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 67 states and 86 transitions. [2022-11-20 18:28:34,407 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 86 transitions. [2022-11-20 18:28:34,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-20 18:28:34,408 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:28:34,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:28:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:28:34,592 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 18:28:35,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:28:35,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 74 states and 94 transitions. [2022-11-20 18:28:35,561 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 94 transitions. [2022-11-20 18:28:35,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-20 18:28:35,561 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:28:35,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:28:35,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:28:35,717 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 18:28:36,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:28:36,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 45 states and 54 transitions. [2022-11-20 18:28:36,577 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2022-11-20 18:28:36,577 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 18:28:36,577 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 20 iterations. [2022-11-20 18:28:36,586 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-11-20 18:28:37,003 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2022-11-20 18:28:37,019 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2022-11-20 18:28:37,019 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 18:28:37,019 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2022-11-20 18:28:37,020 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 18:28:37,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 06:28:37 ImpRootNode [2022-11-20 18:28:37,021 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 18:28:37,022 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 18:28:37,022 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 18:28:37,022 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 18:28:37,023 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:28:26" (3/4) ... [2022-11-20 18:28:37,032 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 18:28:37,047 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure node_create [2022-11-20 18:28:37,059 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-11-20 18:28:37,059 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-20 18:28:37,059 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 18:28:37,060 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 18:28:37,129 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45f9b5e-8068-474f-ab8c-a51af4a48da3/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 18:28:37,130 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 18:28:37,130 INFO L158 Benchmark]: Toolchain (without parser) took 12116.83ms. Allocated memory was 169.9MB in the beginning and 251.7MB in the end (delta: 81.8MB). Free memory was 126.0MB in the beginning and 79.3MB in the end (delta: 46.7MB). Peak memory consumption was 130.6MB. Max. memory is 16.1GB. [2022-11-20 18:28:37,131 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 127.9MB. Free memory was 72.0MB in the beginning and 71.9MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:28:37,131 INFO L158 Benchmark]: CACSL2BoogieTranslator took 521.11ms. Allocated memory is still 169.9MB. Free memory was 125.5MB in the beginning and 108.3MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 18:28:37,132 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.95ms. Allocated memory is still 169.9MB. Free memory was 108.3MB in the beginning and 106.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:28:37,132 INFO L158 Benchmark]: Boogie Preprocessor took 30.50ms. Allocated memory is still 169.9MB. Free memory was 106.2MB in the beginning and 104.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:28:37,132 INFO L158 Benchmark]: RCFGBuilder took 646.22ms. Allocated memory is still 169.9MB. Free memory was 104.6MB in the beginning and 133.8MB in the end (delta: -29.2MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2022-11-20 18:28:37,133 INFO L158 Benchmark]: CodeCheck took 10748.73ms. Allocated memory was 169.9MB in the beginning and 251.7MB in the end (delta: 81.8MB). Free memory was 133.8MB in the beginning and 82.4MB in the end (delta: 51.4MB). Peak memory consumption was 134.2MB. Max. memory is 16.1GB. [2022-11-20 18:28:37,133 INFO L158 Benchmark]: Witness Printer took 107.90ms. Allocated memory is still 251.7MB. Free memory was 82.4MB in the beginning and 79.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:28:37,135 INFO L339 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, 28 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 10.3s, OverallIterations: 20, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2082 SdHoareTripleChecker+Valid, 5.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1147 mSDsluCounter, 1975 SdHoareTripleChecker+Invalid, 4.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1280 mSDsCounter, 605 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2339 IncrementalHoareTripleChecker+Invalid, 2944 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 605 mSolverCounterUnsat, 695 mSDtfsCounter, 2339 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4065 GetRequests, 3897 SyntacticMatches, 26 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7991 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 563 NumberOfCodeBlocks, 563 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 544 ConstructedInterpolants, 0 QuantifiedInterpolants, 1454 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 9 PerfectInterpolantSequences, 212/280 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: 590]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 590]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 617]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 617]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 597]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 605]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 572]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 617]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 127.9MB. Free memory was 72.0MB in the beginning and 71.9MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 521.11ms. Allocated memory is still 169.9MB. Free memory was 125.5MB in the beginning and 108.3MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.95ms. Allocated memory is still 169.9MB. Free memory was 108.3MB in the beginning and 106.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.50ms. Allocated memory is still 169.9MB. Free memory was 106.2MB in the beginning and 104.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 646.22ms. Allocated memory is still 169.9MB. Free memory was 104.6MB in the beginning and 133.8MB in the end (delta: -29.2MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * CodeCheck took 10748.73ms. Allocated memory was 169.9MB in the beginning and 251.7MB in the end (delta: 81.8MB). Free memory was 133.8MB in the beginning and 82.4MB in the end (delta: 51.4MB). Peak memory consumption was 134.2MB. Max. memory is 16.1GB. * Witness Printer took 107.90ms. Allocated memory is still 251.7MB. Free memory was 82.4MB in the beginning and 79.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-20 18:28:37,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45f9b5e-8068-474f-ab8c-a51af4a48da3/bin/ukojak-pZX7IvK2PQ/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