./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/dll2c_update_all_reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b1cb93-cb74-4c73-a1fe-cba1d8842095/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b1cb93-cb74-4c73-a1fe-cba1d8842095/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b1cb93-cb74-4c73-a1fe-cba1d8842095/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b1cb93-cb74-4c73-a1fe-cba1d8842095/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/list-simple/dll2c_update_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b1cb93-cb74-4c73-a1fe-cba1d8842095/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b1cb93-cb74-4c73-a1fe-cba1d8842095/bin/ukojak-92XMlrwhuB --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5247496942546516118f3c28fa350944e097bdf15ee64734ca287a29ad51a034 --- 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-dbf71c6-m [2022-10-17 16:32:21,405 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:32:21,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:32:21,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:32:21,437 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:32:21,439 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:32:21,441 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:32:21,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:32:21,446 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:32:21,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:32:21,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:32:21,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:32:21,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:32:21,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:32:21,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:32:21,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:32:21,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:32:21,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:32:21,461 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:32:21,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:32:21,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:32:21,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:32:21,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:32:21,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:32:21,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:32:21,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:32:21,477 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:32:21,478 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:32:21,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:32:21,480 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:32:21,481 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:32:21,482 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:32:21,483 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:32:21,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:32:21,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:32:21,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:32:21,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:32:21,487 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:32:21,488 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:32:21,489 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:32:21,490 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:32:21,491 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b1cb93-cb74-4c73-a1fe-cba1d8842095/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:32:21,513 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:32:21,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:32:21,515 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:32:21,515 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:32:21,516 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:32:21,516 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:32:21,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:32:21,517 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:32:21,517 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:32:21,517 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:32:21,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:32:21,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:32:21,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:32:21,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:32:21,519 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:32:21,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:32:21,520 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:32:21,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:32:21,520 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:32:21,521 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:32:21,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:32:21,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:32:21,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:32:21,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:32:21,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:32:21,523 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:32:21,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:32:21,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:32:21,524 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_52b1cb93-cb74-4c73-a1fe-cba1d8842095/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b1cb93-cb74-4c73-a1fe-cba1d8842095/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5247496942546516118f3c28fa350944e097bdf15ee64734ca287a29ad51a034 [2022-10-17 16:32:21,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:32:21,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:32:21,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:32:21,837 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:32:21,839 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:32:21,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b1cb93-cb74-4c73-a1fe-cba1d8842095/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/list-simple/dll2c_update_all_reverse.i [2022-10-17 16:32:21,924 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b1cb93-cb74-4c73-a1fe-cba1d8842095/bin/ukojak-92XMlrwhuB/data/13b2fd593/bb6c543d32fa4a67960e8b6eae843e23/FLAG441377e3d [2022-10-17 16:32:22,443 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:32:22,444 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b1cb93-cb74-4c73-a1fe-cba1d8842095/sv-benchmarks/c/list-simple/dll2c_update_all_reverse.i [2022-10-17 16:32:22,458 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b1cb93-cb74-4c73-a1fe-cba1d8842095/bin/ukojak-92XMlrwhuB/data/13b2fd593/bb6c543d32fa4a67960e8b6eae843e23/FLAG441377e3d [2022-10-17 16:32:22,900 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b1cb93-cb74-4c73-a1fe-cba1d8842095/bin/ukojak-92XMlrwhuB/data/13b2fd593/bb6c543d32fa4a67960e8b6eae843e23 [2022-10-17 16:32:22,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:32:22,906 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:32:22,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:32:22,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:32:22,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:32:22,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:32:22" (1/1) ... [2022-10-17 16:32:22,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac963db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:22, skipping insertion in model container [2022-10-17 16:32:22,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:32:22" (1/1) ... [2022-10-17 16:32:22,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:32:22,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:32:23,300 WARN L230 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_52b1cb93-cb74-4c73-a1fe-cba1d8842095/sv-benchmarks/c/list-simple/dll2c_update_all_reverse.i[24556,24569] [2022-10-17 16:32:23,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:32:23,311 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:32:23,353 WARN L230 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_52b1cb93-cb74-4c73-a1fe-cba1d8842095/sv-benchmarks/c/list-simple/dll2c_update_all_reverse.i[24556,24569] [2022-10-17 16:32:23,353 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:32:23,383 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:32:23,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:23 WrapperNode [2022-10-17 16:32:23,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:32:23,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:32:23,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:32:23,385 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:32:23,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:23" (1/1) ... [2022-10-17 16:32:23,407 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:23" (1/1) ... [2022-10-17 16:32:23,432 INFO L138 Inliner]: procedures = 126, calls = 29, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 131 [2022-10-17 16:32:23,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:32:23,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:32:23,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:32:23,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:32:23,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:23" (1/1) ... [2022-10-17 16:32:23,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:23" (1/1) ... [2022-10-17 16:32:23,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:23" (1/1) ... [2022-10-17 16:32:23,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:23" (1/1) ... [2022-10-17 16:32:23,454 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:23" (1/1) ... [2022-10-17 16:32:23,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:23" (1/1) ... [2022-10-17 16:32:23,461 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:23" (1/1) ... [2022-10-17 16:32:23,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:23" (1/1) ... [2022-10-17 16:32:23,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:32:23,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:32:23,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:32:23,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:32:23,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:32:23" (1/1) ... [2022-10-17 16:32:23,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:32:23,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b1cb93-cb74-4c73-a1fe-cba1d8842095/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:32:23,515 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b1cb93-cb74-4c73-a1fe-cba1d8842095/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:32:23,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b1cb93-cb74-4c73-a1fe-cba1d8842095/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:32:23,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:32:23,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 16:32:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2022-10-17 16:32:23,567 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2022-10-17 16:32:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 16:32:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:32:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 16:32:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 16:32:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 16:32:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:32:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:32:23,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:32:23,744 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:32:23,757 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:32:24,081 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:32:24,157 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:32:24,164 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-10-17 16:32:24,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:32:24 BoogieIcfgContainer [2022-10-17 16:32:24,166 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:32:24,167 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:32:24,167 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:32:24,177 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:32:24,183 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:32:24" (1/1) ... [2022-10-17 16:32:24,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:32:24,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:32:24,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2022-10-17 16:32:24,265 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2022-10-17 16:32:24,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 16:32:24,270 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:32:24,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:32:24,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:32:24,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:32:24,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:32:24,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 32 transitions. [2022-10-17 16:32:24,816 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 32 transitions. [2022-10-17 16:32:24,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-17 16:32:24,817 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:32:24,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:32:24,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:32:25,034 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:32:25,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:32:25,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 24 states and 34 transitions. [2022-10-17 16:32:25,311 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2022-10-17 16:32:25,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-17 16:32:25,313 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:32:25,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:32:25,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:32:25,644 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:32:25,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:32:25,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 25 states and 36 transitions. [2022-10-17 16:32:25,693 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2022-10-17 16:32:25,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-17 16:32:25,696 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:32:25,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:32:25,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:32:25,887 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-17 16:32:26,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:32:26,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 27 states and 39 transitions. [2022-10-17 16:32:26,008 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2022-10-17 16:32:26,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-17 16:32:26,011 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:32:26,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:32:26,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:32:26,206 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-17 16:32:26,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:32:26,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 29 states and 43 transitions. [2022-10-17 16:32:26,867 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2022-10-17 16:32:26,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-17 16:32:26,868 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:32:26,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:32:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:32:30,318 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:32:36,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:32:36,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 42 states and 89 transitions. [2022-10-17 16:32:36,578 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 89 transitions. [2022-10-17 16:32:36,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-17 16:32:36,580 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:32:36,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:32:36,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:32:38,799 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:32:39,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:32:39,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 42 states and 89 transitions. [2022-10-17 16:32:39,247 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 89 transitions. [2022-10-17 16:32:39,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-17 16:32:39,249 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:32:39,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:32:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:32:40,978 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:32:41,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:32:41,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 42 states and 89 transitions. [2022-10-17 16:32:41,022 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 89 transitions. [2022-10-17 16:32:41,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-17 16:32:41,023 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:32:41,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:32:41,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:32:42,582 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:32:42,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:32:42,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 42 states and 89 transitions. [2022-10-17 16:32:42,773 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 89 transitions. [2022-10-17 16:32:42,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-17 16:32:42,774 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:32:42,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:32:42,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:32:44,188 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:32:44,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:32:44,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 42 states and 89 transitions. [2022-10-17 16:32:44,239 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 89 transitions. [2022-10-17 16:32:44,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-17 16:32:44,243 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:32:44,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:32:44,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:32:45,703 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:32:45,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:32:45,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 42 states and 89 transitions. [2022-10-17 16:32:45,749 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 89 transitions. [2022-10-17 16:32:45,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-17 16:32:45,760 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:32:45,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:32:45,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:32:47,195 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:32:47,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:32:47,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 42 states and 89 transitions. [2022-10-17 16:32:47,245 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 89 transitions. [2022-10-17 16:32:47,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-17 16:32:47,246 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:32:47,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:32:47,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:32:48,517 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:32:48,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:32:48,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 42 states and 89 transitions. [2022-10-17 16:32:48,573 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 89 transitions. [2022-10-17 16:32:48,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-17 16:32:48,575 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:32:48,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:32:48,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:32:49,935 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:32:49,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:32:49,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 42 states and 89 transitions. [2022-10-17 16:32:49,973 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 89 transitions. [2022-10-17 16:32:49,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-17 16:32:49,974 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:32:49,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:32:50,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat