./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_b8a6a642-0b0d-4cac-b503-98dddfb679d7/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8a6a642-0b0d-4cac-b503-98dddfb679d7/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8a6a642-0b0d-4cac-b503-98dddfb679d7/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8a6a642-0b0d-4cac-b503-98dddfb679d7/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8a6a642-0b0d-4cac-b503-98dddfb679d7/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8a6a642-0b0d-4cac-b503-98dddfb679d7/bin/ukojak-rkRKPMF4O4 --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 cab0e4c46b209be0775136f8613c1e239028ef0244464c17ac04057ecb0a0b33 --- 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-2329fc7 [2022-12-15 02:05:43,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-15 02:05:43,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-15 02:05:43,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-15 02:05:43,897 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-15 02:05:43,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-15 02:05:43,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-15 02:05:43,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-15 02:05:43,901 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-15 02:05:43,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-15 02:05:43,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-15 02:05:43,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-15 02:05:43,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-15 02:05:43,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-15 02:05:43,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-15 02:05:43,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-15 02:05:43,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-15 02:05:43,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-15 02:05:43,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-15 02:05:43,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-15 02:05:43,911 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-15 02:05:43,912 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-15 02:05:43,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-15 02:05:43,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-15 02:05:43,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-15 02:05:43,916 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-15 02:05:43,916 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-15 02:05:43,917 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-15 02:05:43,917 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-15 02:05:43,918 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-15 02:05:43,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-15 02:05:43,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-15 02:05:43,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-15 02:05:43,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-15 02:05:43,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-15 02:05:43,920 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-15 02:05:43,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-15 02:05:43,921 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-15 02:05:43,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-15 02:05:43,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-15 02:05:43,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-15 02:05:43,923 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8a6a642-0b0d-4cac-b503-98dddfb679d7/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-12-15 02:05:43,937 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-15 02:05:43,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-15 02:05:43,938 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-15 02:05:43,938 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-15 02:05:43,938 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-15 02:05:43,938 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-15 02:05:43,939 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-15 02:05:43,939 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-15 02:05:43,939 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-15 02:05:43,939 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-15 02:05:43,939 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-15 02:05:43,939 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-15 02:05:43,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-15 02:05:43,939 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-15 02:05:43,939 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-15 02:05:43,940 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-15 02:05:43,940 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-15 02:05:43,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-15 02:05:43,940 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-15 02:05:43,940 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-15 02:05:43,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-15 02:05:43,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 02:05:43,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-15 02:05:43,941 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-15 02:05:43,941 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-15 02:05:43,941 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-15 02:05:43,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-15 02:05:43,941 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-15 02:05:43,941 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_b8a6a642-0b0d-4cac-b503-98dddfb679d7/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8a6a642-0b0d-4cac-b503-98dddfb679d7/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cab0e4c46b209be0775136f8613c1e239028ef0244464c17ac04057ecb0a0b33 [2022-12-15 02:05:44,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-15 02:05:44,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-15 02:05:44,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-15 02:05:44,139 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-15 02:05:44,139 INFO L275 PluginConnector]: CDTParser initialized [2022-12-15 02:05:44,140 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8a6a642-0b0d-4cac-b503-98dddfb679d7/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i [2022-12-15 02:05:46,808 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-15 02:05:46,964 INFO L351 CDTParser]: Found 1 translation units. [2022-12-15 02:05:46,964 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8a6a642-0b0d-4cac-b503-98dddfb679d7/sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i [2022-12-15 02:05:46,973 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8a6a642-0b0d-4cac-b503-98dddfb679d7/bin/ukojak-rkRKPMF4O4/data/e6b33a5ff/25ae42a15bca4a5faf61d99325530c56/FLAG9256ce19a [2022-12-15 02:05:46,986 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8a6a642-0b0d-4cac-b503-98dddfb679d7/bin/ukojak-rkRKPMF4O4/data/e6b33a5ff/25ae42a15bca4a5faf61d99325530c56 [2022-12-15 02:05:46,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-15 02:05:46,990 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-15 02:05:46,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-15 02:05:46,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-15 02:05:46,994 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-15 02:05:46,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:05:46" (1/1) ... [2022-12-15 02:05:46,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4850012c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:46, skipping insertion in model container [2022-12-15 02:05:46,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:05:46" (1/1) ... [2022-12-15 02:05:47,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-15 02:05:47,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-15 02:05:47,289 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_b8a6a642-0b0d-4cac-b503-98dddfb679d7/sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i[24473,24486] [2022-12-15 02:05:47,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 02:05:47,304 INFO L203 MainTranslator]: Completed pre-run [2022-12-15 02:05:47,342 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_b8a6a642-0b0d-4cac-b503-98dddfb679d7/sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i[24473,24486] [2022-12-15 02:05:47,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 02:05:47,368 INFO L208 MainTranslator]: Completed translation [2022-12-15 02:05:47,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:47 WrapperNode [2022-12-15 02:05:47,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-15 02:05:47,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-15 02:05:47,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-15 02:05:47,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-15 02:05:47,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:47" (1/1) ... [2022-12-15 02:05:47,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:47" (1/1) ... [2022-12-15 02:05:47,405 INFO L138 Inliner]: procedures = 126, calls = 27, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 111 [2022-12-15 02:05:47,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-15 02:05:47,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-15 02:05:47,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-15 02:05:47,406 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-15 02:05:47,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:47" (1/1) ... [2022-12-15 02:05:47,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:47" (1/1) ... [2022-12-15 02:05:47,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:47" (1/1) ... [2022-12-15 02:05:47,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:47" (1/1) ... [2022-12-15 02:05:47,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:47" (1/1) ... [2022-12-15 02:05:47,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:47" (1/1) ... [2022-12-15 02:05:47,430 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:47" (1/1) ... [2022-12-15 02:05:47,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:47" (1/1) ... [2022-12-15 02:05:47,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-15 02:05:47,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-15 02:05:47,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-15 02:05:47,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-15 02:05:47,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:05:47" (1/1) ... [2022-12-15 02:05:47,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 02:05:47,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8a6a642-0b0d-4cac-b503-98dddfb679d7/bin/ukojak-rkRKPMF4O4/z3 [2022-12-15 02:05:47,463 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8a6a642-0b0d-4cac-b503-98dddfb679d7/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-15 02:05:47,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8a6a642-0b0d-4cac-b503-98dddfb679d7/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-15 02:05:47,500 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2022-12-15 02:05:47,500 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2022-12-15 02:05:47,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-15 02:05:47,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-15 02:05:47,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-15 02:05:47,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-15 02:05:47,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-15 02:05:47,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-15 02:05:47,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-15 02:05:47,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-15 02:05:47,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-15 02:05:47,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-15 02:05:47,591 INFO L235 CfgBuilder]: Building ICFG [2022-12-15 02:05:47,593 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-15 02:05:47,614 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2022-12-15 02:05:47,762 INFO L276 CfgBuilder]: Performing block encoding [2022-12-15 02:05:47,817 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-15 02:05:47,817 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-12-15 02:05:47,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 02:05:47 BoogieIcfgContainer [2022-12-15 02:05:47,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-15 02:05:47,820 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-15 02:05:47,821 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-15 02:05:47,831 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-15 02:05:47,831 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 02:05:47" (1/1) ... [2022-12-15 02:05:47,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-15 02:05:47,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 02:05:47,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2022-12-15 02:05:47,880 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2022-12-15 02:05:47,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-15 02:05:47,882 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 02:05:47,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 02:05:47,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 02:05:48,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 02:05:48,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 02:05:48,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 19 states and 28 transitions. [2022-12-15 02:05:48,071 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 28 transitions. [2022-12-15 02:05:48,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-15 02:05:48,072 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 02:05:48,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 02:05:48,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 02:05:48,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-15 02:05:48,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 02:05:48,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 23 states and 35 transitions. [2022-12-15 02:05:48,225 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 35 transitions. [2022-12-15 02:05:48,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-15 02:05:48,226 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 02:05:48,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 02:05:48,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 02:05:48,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-15 02:05:48,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 02:05:48,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 14 states and 19 transitions. [2022-12-15 02:05:48,335 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 19 transitions. [2022-12-15 02:05:48,336 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-15 02:05:48,336 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2022-12-15 02:05:48,343 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-12-15 02:05:48,361 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2022-12-15 02:05:48,366 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2022-12-15 02:05:48,367 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-15 02:05:48,367 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2022-12-15 02:05:48,367 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-15 02:05:48,367 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-15 02:05:48,367 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2022-12-15 02:05:48,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 15.12 02:05:48 ImpRootNode [2022-12-15 02:05:48,368 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-15 02:05:48,368 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-15 02:05:48,368 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-15 02:05:48,368 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-15 02:05:48,369 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 02:05:47" (3/4) ... [2022-12-15 02:05:48,371 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-15 02:05:48,375 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure myexit [2022-12-15 02:05:48,378 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-12-15 02:05:48,378 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-12-15 02:05:48,378 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-15 02:05:48,378 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-15 02:05:48,408 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8a6a642-0b0d-4cac-b503-98dddfb679d7/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-15 02:05:48,408 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-15 02:05:48,408 INFO L158 Benchmark]: Toolchain (without parser) took 1418.49ms. Allocated memory is still 165.7MB. Free memory was 130.1MB in the beginning and 124.8MB in the end (delta: 5.4MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2022-12-15 02:05:48,409 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 111.1MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 02:05:48,409 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.99ms. Allocated memory is still 165.7MB. Free memory was 129.5MB in the beginning and 112.0MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-15 02:05:48,409 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.85ms. Allocated memory is still 165.7MB. Free memory was 112.0MB in the beginning and 110.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 02:05:48,409 INFO L158 Benchmark]: Boogie Preprocessor took 28.15ms. Allocated memory is still 165.7MB. Free memory was 110.5MB in the beginning and 108.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 02:05:48,410 INFO L158 Benchmark]: RCFGBuilder took 384.79ms. Allocated memory is still 165.7MB. Free memory was 108.5MB in the beginning and 90.4MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-15 02:05:48,410 INFO L158 Benchmark]: CodeCheck took 547.13ms. Allocated memory is still 165.7MB. Free memory was 90.4MB in the beginning and 127.8MB in the end (delta: -37.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 02:05:48,410 INFO L158 Benchmark]: Witness Printer took 39.89ms. Allocated memory is still 165.7MB. Free memory was 127.8MB in the beginning and 124.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 02:05:48,411 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, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 82 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 99 IncrementalHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 22 mSDtfsCounter, 99 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 222 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 47 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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: 641]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 633]: Loop Invariant Derived loop invariant: 1 <= i - InvariantResult [Line: 629]: Loop Invariant Derived loop invariant: 2 <= len - InvariantResult [Line: 624]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 2 <= len - InvariantResult [Line: 604]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: 2 <= len * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 111.1MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 377.99ms. Allocated memory is still 165.7MB. Free memory was 129.5MB in the beginning and 112.0MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.85ms. Allocated memory is still 165.7MB. Free memory was 112.0MB in the beginning and 110.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.15ms. Allocated memory is still 165.7MB. Free memory was 110.5MB in the beginning and 108.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 384.79ms. Allocated memory is still 165.7MB. Free memory was 108.5MB in the beginning and 90.4MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 547.13ms. Allocated memory is still 165.7MB. Free memory was 90.4MB in the beginning and 127.8MB in the end (delta: -37.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 39.89ms. Allocated memory is still 165.7MB. Free memory was 127.8MB in the beginning and 124.8MB 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! [2022-12-15 02:05:48,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8a6a642-0b0d-4cac-b503-98dddfb679d7/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE