./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-15/cstrncat_reverse_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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_06d0bfbe-7a8c-4e23-a371-76d811a8cc1b/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d0bfbe-7a8c-4e23-a371-76d811a8cc1b/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_06d0bfbe-7a8c-4e23-a371-76d811a8cc1b/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d0bfbe-7a8c-4e23-a371-76d811a8cc1b/bin/ukojak-rkRKPMF4O4/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-15/cstrncat_reverse_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d0bfbe-7a8c-4e23-a371-76d811a8cc1b/bin/ukojak-rkRKPMF4O4/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d0bfbe-7a8c-4e23-a371-76d811a8cc1b/bin/ukojak-rkRKPMF4O4 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bccafd118bd3a0a83ff8db4cf42e66a78381136beaa46d7482d6d8b6c55b738f --- 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 [2022-12-14 22:57:32,613 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 22:57:32,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 22:57:32,636 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 22:57:32,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 22:57:32,637 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 22:57:32,639 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 22:57:32,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 22:57:32,642 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 22:57:32,643 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 22:57:32,644 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 22:57:32,645 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 22:57:32,646 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 22:57:32,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 22:57:32,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 22:57:32,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 22:57:32,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 22:57:32,651 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 22:57:32,653 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 22:57:32,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 22:57:32,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 22:57:32,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 22:57:32,658 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 22:57:32,659 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 22:57:32,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 22:57:32,661 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 22:57:32,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 22:57:32,662 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 22:57:32,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 22:57:32,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 22:57:32,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 22:57:32,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 22:57:32,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 22:57:32,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 22:57:32,665 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 22:57:32,666 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 22:57:32,666 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 22:57:32,666 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 22:57:32,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 22:57:32,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 22:57:32,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 22:57:32,668 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d0bfbe-7a8c-4e23-a371-76d811a8cc1b/bin/ukojak-rkRKPMF4O4/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf [2022-12-14 22:57:32,690 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 22:57:32,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 22:57:32,692 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 22:57:32,692 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 22:57:32,692 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 22:57:32,692 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 22:57:32,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 22:57:32,693 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 22:57:32,693 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 22:57:32,693 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 22:57:32,693 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 22:57:32,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 22:57:32,694 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 22:57:32,694 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 22:57:32,694 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 22:57:32,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 22:57:32,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 22:57:32,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 22:57:32,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 22:57:32,695 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 22:57:32,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 22:57:32,695 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_06d0bfbe-7a8c-4e23-a371-76d811a8cc1b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d0bfbe-7a8c-4e23-a371-76d811a8cc1b/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bccafd118bd3a0a83ff8db4cf42e66a78381136beaa46d7482d6d8b6c55b738f [2022-12-14 22:57:32,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 22:57:32,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 22:57:32,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 22:57:32,897 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 22:57:32,898 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 22:57:32,899 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d0bfbe-7a8c-4e23-a371-76d811a8cc1b/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/termination-15/cstrncat_reverse_alloca.i [2022-12-14 22:57:35,537 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 22:57:35,694 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 22:57:35,694 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d0bfbe-7a8c-4e23-a371-76d811a8cc1b/sv-benchmarks/c/termination-15/cstrncat_reverse_alloca.i [2022-12-14 22:57:35,701 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d0bfbe-7a8c-4e23-a371-76d811a8cc1b/bin/ukojak-rkRKPMF4O4/data/00430356a/2f40be89711c449d98b8283087425ed7/FLAG710888c93 [2022-12-14 22:57:36,090 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d0bfbe-7a8c-4e23-a371-76d811a8cc1b/bin/ukojak-rkRKPMF4O4/data/00430356a/2f40be89711c449d98b8283087425ed7 [2022-12-14 22:57:36,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 22:57:36,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 22:57:36,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 22:57:36,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 22:57:36,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 22:57:36,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:57:36" (1/1) ... [2022-12-14 22:57:36,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12f3a500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:57:36, skipping insertion in model container [2022-12-14 22:57:36,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:57:36" (1/1) ... [2022-12-14 22:57:36,106 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 22:57:36,127 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 22:57:36,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 22:57:36,325 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 22:57:36,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 22:57:36,397 INFO L208 MainTranslator]: Completed translation [2022-12-14 22:57:36,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:57:36 WrapperNode [2022-12-14 22:57:36,397 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 22:57:36,399 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 22:57:36,399 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 22:57:36,399 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 22:57:36,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:57:36" (1/1) ... [2022-12-14 22:57:36,412 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:57:36" (1/1) ... [2022-12-14 22:57:36,427 INFO L138 Inliner]: procedures = 152, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 87 [2022-12-14 22:57:36,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 22:57:36,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 22:57:36,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 22:57:36,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 22:57:36,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:57:36" (1/1) ... [2022-12-14 22:57:36,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:57:36" (1/1) ... [2022-12-14 22:57:36,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:57:36" (1/1) ... [2022-12-14 22:57:36,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:57:36" (1/1) ... [2022-12-14 22:57:36,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:57:36" (1/1) ... [2022-12-14 22:57:36,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:57:36" (1/1) ... [2022-12-14 22:57:36,447 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:57:36" (1/1) ... [2022-12-14 22:57:36,448 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:57:36" (1/1) ... [2022-12-14 22:57:36,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 22:57:36,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 22:57:36,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 22:57:36,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 22:57:36,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:57:36" (1/1) ... [2022-12-14 22:57:36,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 22:57:36,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d0bfbe-7a8c-4e23-a371-76d811a8cc1b/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 22:57:36,479 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d0bfbe-7a8c-4e23-a371-76d811a8cc1b/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 22:57:36,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d0bfbe-7a8c-4e23-a371-76d811a8cc1b/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 22:57:36,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 22:57:36,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 22:57:36,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 22:57:36,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 22:57:36,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 22:57:36,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 22:57:36,592 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 22:57:36,594 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 22:57:36,740 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 22:57:36,773 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 22:57:36,773 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 22:57:36,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:57:36 BoogieIcfgContainer [2022-12-14 22:57:36,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 22:57:36,776 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 22:57:36,776 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 22:57:36,785 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 22:57:36,786 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:57:36" (1/1) ... [2022-12-14 22:57:36,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 22:57:36,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:57:36,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 32 states and 38 transitions. [2022-12-14 22:57:36,840 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2022-12-14 22:57:36,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 22:57:36,841 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:57:36,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:57:36,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:57:36,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:57:37,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:57:37,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 33 states and 39 transitions. [2022-12-14 22:57:37,002 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2022-12-14 22:57:37,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 22:57:37,002 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:57:37,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:57:37,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:57:37,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:57:37,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:57:37,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 32 states and 38 transitions. [2022-12-14 22:57:37,139 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2022-12-14 22:57:37,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 22:57:37,139 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:57:37,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:57:37,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:57:37,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:57:37,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:57:37,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 37 transitions. [2022-12-14 22:57:37,553 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2022-12-14 22:57:37,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 22:57:37,553 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:57:37,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:57:37,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:57:37,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:57:37,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:57:37,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 30 states and 36 transitions. [2022-12-14 22:57:37,714 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2022-12-14 22:57:37,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 22:57:37,716 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:57:37,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:57:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:57:37,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:57:38,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:57:38,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 29 states and 35 transitions. [2022-12-14 22:57:38,212 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2022-12-14 22:57:38,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 22:57:38,212 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:57:38,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:57:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:57:38,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:57:38,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:57:38,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 30 states and 36 transitions. [2022-12-14 22:57:38,410 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2022-12-14 22:57:38,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 22:57:38,410 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:57:38,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:57:38,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:57:38,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:57:39,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:57:39,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 31 states and 38 transitions. [2022-12-14 22:57:39,350 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2022-12-14 22:57:39,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 22:57:39,351 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:57:39,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:57:39,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:57:39,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:57:40,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:57:40,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 33 states and 43 transitions. [2022-12-14 22:57:40,477 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2022-12-14 22:57:40,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 22:57:40,477 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:57:40,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:57:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:57:40,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 22:57:40,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:57:40,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 33 states and 42 transitions. [2022-12-14 22:57:40,714 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2022-12-14 22:57:40,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 22:57:40,715 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:57:40,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:57:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:57:40,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:57:40,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:57:40,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 33 states and 41 transitions. [2022-12-14 22:57:40,736 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2022-12-14 22:57:40,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 22:57:40,736 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:57:40,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:57:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:57:40,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:57:41,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:57:41,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 38 states and 52 transitions. [2022-12-14 22:57:41,413 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2022-12-14 22:57:41,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 22:57:41,413 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:57:41,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:57:41,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:57:41,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:57:43,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:57:43,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 43 states and 62 transitions. [2022-12-14 22:57:43,858 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 62 transitions. [2022-12-14 22:57:43,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 22:57:43,858 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:57:43,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:57:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:57:44,396 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:57:45,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:57:45,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 33 states and 40 transitions. [2022-12-14 22:57:45,558 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2022-12-14 22:57:45,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 22:57:45,558 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:57:45,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:57:45,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:57:45,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:57:46,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:57:46,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 37 states and 46 transitions. [2022-12-14 22:57:46,176 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 46 transitions. [2022-12-14 22:57:46,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 22:57:46,176 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:57:46,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:57:46,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:57:46,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:57:47,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:57:47,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 41 states and 51 transitions. [2022-12-14 22:57:47,209 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2022-12-14 22:57:47,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 22:57:47,210 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:57:47,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:57:47,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:57:47,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:57:47,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:57:47,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 43 states and 57 transitions. [2022-12-14 22:57:47,250 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2022-12-14 22:57:47,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 22:57:47,250 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:57:47,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:57:47,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:57:47,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:57:47,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:57:47,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 45 states and 64 transitions. [2022-12-14 22:57:47,298 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2022-12-14 22:57:47,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 22:57:47,298 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:57:47,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:57:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:57:47,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:57:48,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:57:48,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 50 states and 79 transitions. [2022-12-14 22:57:48,847 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 79 transitions. [2022-12-14 22:57:48,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 22:57:48,847 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:57:48,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:57:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:57:48,952 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:57:49,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:57:49,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 50 states and 74 transitions. [2022-12-14 22:57:49,413 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 74 transitions. [2022-12-14 22:57:49,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 22:57:49,413 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:57:49,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:57:49,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:57:49,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:57:51,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:57:51,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 52 states and 77 transitions. [2022-12-14 22:57:51,644 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2022-12-14 22:57:51,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 22:57:51,644 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:57:51,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:57:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:57:51,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:57:51,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:57:51,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 51 states and 76 transitions. [2022-12-14 22:57:51,955 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 76 transitions. [2022-12-14 22:57:51,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 22:57:51,955 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:57:51,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:57:51,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:57:51,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:57:52,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:57:52,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 50 states and 75 transitions. [2022-12-14 22:57:52,368 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 75 transitions. [2022-12-14 22:57:52,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 22:57:52,369 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:57:52,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:57:52,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:57:53,355 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:57:59,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:57:59,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 55 states and 94 transitions. [2022-12-14 22:57:59,155 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 94 transitions. [2022-12-14 22:57:59,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 22:57:59,156 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:57:59,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:57:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:57:59,187 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 22:58:00,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:58:00,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 57 states and 98 transitions. [2022-12-14 22:58:00,876 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 98 transitions. [2022-12-14 22:58:00,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 22:58:00,876 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:58:00,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:58:00,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:58:01,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:58:09,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:58:09,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 65 states and 118 transitions. [2022-12-14 22:58:09,064 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 118 transitions. [2022-12-14 22:58:09,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 22:58:09,064 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:58:09,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:58:09,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:58:10,234 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:58:19,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:58:19,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 72 states and 138 transitions. [2022-12-14 22:58:19,612 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 138 transitions. [2022-12-14 22:58:19,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 22:58:19,612 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:58:19,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:58:19,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:58:19,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:58:20,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:58:20,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 73 states and 138 transitions. [2022-12-14 22:58:20,827 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 138 transitions. [2022-12-14 22:58:20,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 22:58:20,828 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:58:20,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:58:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:58:20,840 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 22:58:21,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:58:21,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 74 states and 138 transitions. [2022-12-14 22:58:21,796 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 138 transitions. [2022-12-14 22:58:21,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 22:58:21,797 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:58:21,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:58:21,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 22:58:21,807 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 22:58:21,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 22:58:21,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 22:58:21,866 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 22:58:21,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 22:58:21,901 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 29 iterations. [2022-12-14 22:58:21,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 10:58:21 ImpRootNode [2022-12-14 22:58:21,932 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 22:58:21,932 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 22:58:21,933 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 22:58:21,933 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 22:58:21,933 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:57:36" (3/4) ... [2022-12-14 22:58:21,935 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 22:58:21,988 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d0bfbe-7a8c-4e23-a371-76d811a8cc1b/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 22:58:21,988 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 22:58:21,989 INFO L158 Benchmark]: Toolchain (without parser) took 45894.24ms. Allocated memory is still 174.1MB. Free memory was 126.6MB in the beginning and 99.8MB in the end (delta: 26.8MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2022-12-14 22:58:21,989 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 102.8MB. Free memory was 75.3MB in the beginning and 75.2MB in the end (delta: 91.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 22:58:21,990 INFO L158 Benchmark]: CACSL2BoogieTranslator took 302.20ms. Allocated memory is still 174.1MB. Free memory was 126.6MB in the beginning and 109.2MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 22:58:21,990 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.59ms. Allocated memory is still 174.1MB. Free memory was 108.9MB in the beginning and 107.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 22:58:21,991 INFO L158 Benchmark]: Boogie Preprocessor took 23.18ms. Allocated memory is still 174.1MB. Free memory was 107.1MB in the beginning and 105.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 22:58:21,991 INFO L158 Benchmark]: RCFGBuilder took 324.10ms. Allocated memory is still 174.1MB. Free memory was 105.6MB in the beginning and 88.2MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 22:58:21,992 INFO L158 Benchmark]: CodeCheck took 45155.96ms. Allocated memory is still 174.1MB. Free memory was 88.2MB in the beginning and 101.9MB in the end (delta: -13.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 22:58:21,992 INFO L158 Benchmark]: Witness Printer took 55.68ms. Allocated memory is still 174.1MB. Free memory was 101.9MB in the beginning and 99.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 22:58:21,996 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 1 procedures, 32 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 45.1s, OverallIterations: 29, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1678 SdHoareTripleChecker+Valid, 11.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1273 mSDsluCounter, 1158 SdHoareTripleChecker+Invalid, 10.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 765 mSDsCounter, 2065 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7817 IncrementalHoareTripleChecker+Invalid, 9882 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2065 mSolverCounterUnsat, 393 mSDtfsCounter, 7817 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2850 GetRequests, 2438 SyntacticMatches, 28 SemanticMatches, 384 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55679 ImplicationChecksByTransitivity, 41.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 289 NumberOfCodeBlocks, 289 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 244 ConstructedInterpolants, 0 QuantifiedInterpolants, 1618 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 28 InterpolantComputations, 23 PerfectInterpolantSequences, 15/26 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 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L378] int length1 = __VERIFIER_nondet_int(); [L379] int length2 = __VERIFIER_nondet_int(); [L380] int n = __VERIFIER_nondet_int(); [L381] COND FALSE !(length1 < 1) [L384] COND FALSE !(length2 < 1) [L387] COND FALSE !(n < 1) VAL [length1=4, length2=2, n=2] [L390] COND FALSE !(length1 < n || length1 - n < length2) [L391] char* nondetString1 = (char*) __builtin_alloca(length1 * sizeof(char)); [L392] char* nondetString2 = (char*) __builtin_alloca(length2 * sizeof(char)); VAL [__builtin_alloca(length1 * sizeof(char))={3:0}, __builtin_alloca(length2 * sizeof(char))={2:0}, length1=4, length2=2, n=2, nondetString1={3:0}, nondetString2={2:0}] [L393] nondetString1[0] = '\0' VAL [__builtin_alloca(length1 * sizeof(char))={3:0}, __builtin_alloca(length2 * sizeof(char))={2:0}, length1=4, length2=2, n=2, nondetString1={3:0}, nondetString2={2:0}] [L394] nondetString2[0] = '\0' [L395] nondetString1 += length1 - n - 1 [L396] nondetString2 += length2 - 1 [L397] CALL cstrncat(nondetString1, nondetString2, n) [L366] char *s = s1; VAL [\old(n)=2, n=2, s={3:1}, s1={3:1}, s1={3:1}, s2={2:1}, s2={2:1}] [L367] EXPR \read(*s) VAL [\old(n)=2, \read(*s)=15, n=2, s={3:1}, s1={3:1}, s1={3:1}, s2={2:1}, s2={2:1}] [L367] COND TRUE *s != '\0' [L368] s-- VAL [\old(n)=2, n=2, s={3:0}, s1={3:1}, s1={3:1}, s2={2:1}, s2={2:1}] [L367] EXPR \read(*s) VAL [\old(n)=2, \read(*s)=0, n=2, s={3:0}, s1={3:1}, s1={3:1}, s2={2:1}, s2={2:1}] [L367] COND FALSE !(*s != '\0') [L369] n != 0 && (*s = *s2--) != '\0' [L369] EXPR s2-- VAL [\old(n)=2, n=2, n != 0 && (*s = *s2--) != '\0'=1, s={3:0}, s1={3:1}, s1={3:1}, s2={2:1}, s2={2:0}, s2--=19s2--={2:1}] [L369] EXPR *s = *s2-- [L369] n != 0 && (*s = *s2--) != '\0' VAL [\old(n)=2, n=2, n != 0 && (*s = *s2--) != '\0'=1, s={3:0}, s1={3:1}, s1={3:1}, s2={2:0}, s2={2:1}, s2--=19s2--={2:1}] [L369] COND TRUE n != 0 && (*s = *s2--) != '\0' [L370] n-- [L371] s-- VAL [\old(n)=2, n=1, s={3:-1}, s1={3:1}, s1={3:1}, s2={2:1}, s2={2:0}] [L369] n != 0 && (*s = *s2--) != '\0' [L369] EXPR s2-- VAL [\old(n)=2, n=1, n != 0 && (*s = *s2--) != '\0'=1, s={3:-1}, s1={3:1}, s1={3:1}, s2={2:1}, s2={2:-1}, s2--=0s2--={2:0}] [L369] *s = *s2-- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 102.8MB. Free memory was 75.3MB in the beginning and 75.2MB in the end (delta: 91.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 302.20ms. Allocated memory is still 174.1MB. Free memory was 126.6MB in the beginning and 109.2MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.59ms. Allocated memory is still 174.1MB. Free memory was 108.9MB in the beginning and 107.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.18ms. Allocated memory is still 174.1MB. Free memory was 107.1MB in the beginning and 105.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 324.10ms. Allocated memory is still 174.1MB. Free memory was 105.6MB in the beginning and 88.2MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 45155.96ms. Allocated memory is still 174.1MB. Free memory was 88.2MB in the beginning and 101.9MB in the end (delta: -13.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 55.68ms. Allocated memory is still 174.1MB. Free memory was 101.9MB in the beginning and 99.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-12-14 22:58:22,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d0bfbe-7a8c-4e23-a371-76d811a8cc1b/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)