./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/invert_string-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b404d3-e343-42bb-b93d-7b7dada3b478/bin/ukojak-fKGseLULKY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b404d3-e343-42bb-b93d-7b7dada3b478/bin/ukojak-fKGseLULKY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b404d3-e343-42bb-b93d-7b7dada3b478/bin/ukojak-fKGseLULKY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b404d3-e343-42bb-b93d-7b7dada3b478/bin/ukojak-fKGseLULKY/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/invert_string-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b404d3-e343-42bb-b93d-7b7dada3b478/bin/ukojak-fKGseLULKY/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b404d3-e343-42bb-b93d-7b7dada3b478/bin/ukojak-fKGseLULKY --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 1b9a71645175fee79e6d6cd797db38ce6044ffb9 ......................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 03:18:00,309 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 03:18:00,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 03:18:00,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 03:18:00,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 03:18:00,360 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 03:18:00,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 03:18:00,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 03:18:00,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 03:18:00,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 03:18:00,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 03:18:00,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 03:18:00,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 03:18:00,382 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 03:18:00,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 03:18:00,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 03:18:00,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 03:18:00,392 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 03:18:00,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 03:18:00,407 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 03:18:00,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 03:18:00,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 03:18:00,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 03:18:00,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 03:18:00,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 03:18:00,417 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 03:18:00,417 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 03:18:00,418 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 03:18:00,419 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 03:18:00,420 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 03:18:00,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 03:18:00,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 03:18:00,423 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 03:18:00,424 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 03:18:00,425 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 03:18:00,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 03:18:00,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 03:18:00,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 03:18:00,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 03:18:00,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 03:18:00,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 03:18:00,429 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b404d3-e343-42bb-b93d-7b7dada3b478/bin/ukojak-fKGseLULKY/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-13 03:18:00,452 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 03:18:00,452 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 03:18:00,453 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 03:18:00,453 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-13 03:18:00,454 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 03:18:00,455 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 03:18:00,455 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 03:18:00,455 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 03:18:00,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 03:18:00,456 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 03:18:00,456 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 03:18:00,456 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 03:18:00,456 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 03:18:00,456 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 03:18:00,457 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 03:18:00,457 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 03:18:00,457 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 03:18:00,457 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 03:18:00,457 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-13 03:18:00,458 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-13 03:18:00,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 03:18:00,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 03:18:00,458 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 03:18:00,459 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 03:18:00,459 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 03:18:00,459 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-13 03:18:00,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 03:18:00,460 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 03:18:00,460 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_77b404d3-e343-42bb-b93d-7b7dada3b478/bin/ukojak-fKGseLULKY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b404d3-e343-42bb-b93d-7b7dada3b478/bin/ukojak-fKGseLULKY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b9a71645175fee79e6d6cd797db38ce6044ffb9 [2021-10-13 03:18:00,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 03:18:00,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 03:18:00,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 03:18:00,771 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 03:18:00,773 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 03:18:00,775 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b404d3-e343-42bb-b93d-7b7dada3b478/bin/ukojak-fKGseLULKY/../../sv-benchmarks/c/loops/invert_string-1.c [2021-10-13 03:18:00,853 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b404d3-e343-42bb-b93d-7b7dada3b478/bin/ukojak-fKGseLULKY/data/12f3ee02e/15e68fd2d33647928bfdb25d895fe115/FLAG2dbcf24e8 [2021-10-13 03:18:01,337 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 03:18:01,338 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b404d3-e343-42bb-b93d-7b7dada3b478/sv-benchmarks/c/loops/invert_string-1.c [2021-10-13 03:18:01,351 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b404d3-e343-42bb-b93d-7b7dada3b478/bin/ukojak-fKGseLULKY/data/12f3ee02e/15e68fd2d33647928bfdb25d895fe115/FLAG2dbcf24e8 [2021-10-13 03:18:01,692 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b404d3-e343-42bb-b93d-7b7dada3b478/bin/ukojak-fKGseLULKY/data/12f3ee02e/15e68fd2d33647928bfdb25d895fe115 [2021-10-13 03:18:01,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 03:18:01,696 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 03:18:01,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 03:18:01,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 03:18:01,701 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 03:18:01,702 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:18:01" (1/1) ... [2021-10-13 03:18:01,703 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@158abbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:18:01, skipping insertion in model container [2021-10-13 03:18:01,704 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:18:01" (1/1) ... [2021-10-13 03:18:01,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 03:18:01,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 03:18:01,906 WARN L228 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_77b404d3-e343-42bb-b93d-7b7dada3b478/sv-benchmarks/c/loops/invert_string-1.c[352,365] [2021-10-13 03:18:01,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 03:18:01,937 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 03:18:01,948 WARN L228 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_77b404d3-e343-42bb-b93d-7b7dada3b478/sv-benchmarks/c/loops/invert_string-1.c[352,365] [2021-10-13 03:18:01,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 03:18:01,969 INFO L208 MainTranslator]: Completed translation [2021-10-13 03:18:01,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:18:01 WrapperNode [2021-10-13 03:18:01,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 03:18:01,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 03:18:01,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 03:18:01,971 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 03:18:01,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:18:01" (1/1) ... [2021-10-13 03:18:01,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:18:01" (1/1) ... [2021-10-13 03:18:02,007 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 03:18:02,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 03:18:02,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 03:18:02,008 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 03:18:02,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:18:01" (1/1) ... [2021-10-13 03:18:02,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:18:01" (1/1) ... [2021-10-13 03:18:02,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:18:01" (1/1) ... [2021-10-13 03:18:02,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:18:01" (1/1) ... [2021-10-13 03:18:02,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:18:01" (1/1) ... [2021-10-13 03:18:02,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:18:01" (1/1) ... [2021-10-13 03:18:02,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:18:01" (1/1) ... [2021-10-13 03:18:02,035 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 03:18:02,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 03:18:02,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 03:18:02,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 03:18:02,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:18:01" (1/1) ... [2021-10-13 03:18:02,045 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 03:18:02,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b404d3-e343-42bb-b93d-7b7dada3b478/bin/ukojak-fKGseLULKY/z3 [2021-10-13 03:18:02,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b404d3-e343-42bb-b93d-7b7dada3b478/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-13 03:18:02,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b404d3-e343-42bb-b93d-7b7dada3b478/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-13 03:18:02,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 03:18:02,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 03:18:02,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 03:18:02,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 03:18:02,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 03:18:02,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 03:18:02,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 03:18:02,505 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 03:18:02,506 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-13 03:18:02,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:18:02 BoogieIcfgContainer [2021-10-13 03:18:02,509 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 03:18:02,510 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-13 03:18:02,510 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-13 03:18:02,520 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-13 03:18:02,521 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:18:02" (1/1) ... [2021-10-13 03:18:02,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 03:18:02,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:18:02,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 9 states and 12 transitions. [2021-10-13 03:18:02,578 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 12 transitions. [2021-10-13 03:18:02,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 03:18:02,580 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:18:02,582 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:18:02,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:18:02,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:18:02,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:18:02,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2021-10-13 03:18:02,919 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2021-10-13 03:18:02,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 03:18:02,920 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:18:02,920 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:18:02,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:18:02,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 03:18:03,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:18:03,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2021-10-13 03:18:03,116 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2021-10-13 03:18:03,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 03:18:03,117 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:18:03,117 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:18:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:18:03,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:18:04,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:18:04,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 17 states and 29 transitions. [2021-10-13 03:18:04,358 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 29 transitions. [2021-10-13 03:18:04,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 03:18:04,361 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:18:04,361 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:18:04,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:18:04,471 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:18:05,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:18:05,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 19 states and 33 transitions. [2021-10-13 03:18:05,069 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 33 transitions. [2021-10-13 03:18:05,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 03:18:05,069 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:18:05,069 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:18:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:18:05,180 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:18:05,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:18:05,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 20 states and 34 transitions. [2021-10-13 03:18:05,367 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 34 transitions. [2021-10-13 03:18:05,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 03:18:05,367 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:18:05,368 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:18:05,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:18:05,875 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:18:07,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:18:07,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 25 states and 50 transitions. [2021-10-13 03:18:07,173 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 50 transitions. [2021-10-13 03:18:07,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 03:18:07,173 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:18:07,174 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:18:07,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:18:07,371 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:18:07,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:18:07,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 26 states and 53 transitions. [2021-10-13 03:18:07,706 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 53 transitions. [2021-10-13 03:18:07,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 03:18:07,707 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:18:07,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:18:07,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:18:07,826 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:18:08,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:18:08,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 28 states and 60 transitions. [2021-10-13 03:18:08,418 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 60 transitions. [2021-10-13 03:18:08,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 03:18:08,419 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:18:08,420 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:18:08,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:18:08,518 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:18:08,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:18:08,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 30 states and 63 transitions. [2021-10-13 03:18:08,970 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 63 transitions. [2021-10-13 03:18:08,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 03:18:08,971 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:18:08,972 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:18:08,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:18:09,116 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 03:18:09,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:18:09,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 34 states and 71 transitions. [2021-10-13 03:18:09,921 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 71 transitions. [2021-10-13 03:18:09,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 03:18:09,921 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:18:09,922 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:18:09,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:18:10,110 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:18:10,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:18:10,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 30 states and 54 transitions. [2021-10-13 03:18:10,497 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 54 transitions. [2021-10-13 03:18:10,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 03:18:10,498 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:18:10,498 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:18:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:18:11,400 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:18:12,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:18:12,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 32 states and 59 transitions. [2021-10-13 03:18:12,890 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 59 transitions. [2021-10-13 03:18:12,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 03:18:12,891 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:18:12,891 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:18:12,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:18:13,127 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:18:13,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:18:13,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 33 states and 60 transitions. [2021-10-13 03:18:13,501 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 60 transitions. [2021-10-13 03:18:13,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 03:18:13,502 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:18:13,502 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:18:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:18:13,587 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:18:14,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:18:14,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 34 states and 64 transitions. [2021-10-13 03:18:14,415 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2021-10-13 03:18:14,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 03:18:14,416 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:18:14,417 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:18:14,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:18:14,591 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:18:14,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:18:14,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 35 states and 65 transitions. [2021-10-13 03:18:14,901 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 65 transitions. [2021-10-13 03:18:14,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 03:18:14,902 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:18:14,902 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:18:14,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:18:14,976 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:18:15,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:18:15,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 36 states and 65 transitions. [2021-10-13 03:18:15,197 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 65 transitions. [2021-10-13 03:18:15,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 03:18:15,198 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:18:15,199 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:18:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 03:18:15,215 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 03:18:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 03:18:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 03:18:15,284 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 03:18:15,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 03:18:15,356 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 17 iterations. [2021-10-13 03:18:15,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.10 03:18:15 ImpRootNode [2021-10-13 03:18:15,421 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-13 03:18:15,422 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 03:18:15,422 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 03:18:15,422 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 03:18:15,423 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:18:02" (3/4) ... [2021-10-13 03:18:15,425 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 03:18:15,537 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b404d3-e343-42bb-b93d-7b7dada3b478/bin/ukojak-fKGseLULKY/witness.graphml [2021-10-13 03:18:15,541 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 03:18:15,542 INFO L168 Benchmark]: Toolchain (without parser) took 13845.63 ms. Allocated memory was 104.9 MB in the beginning and 167.8 MB in the end (delta: 62.9 MB). Free memory was 63.7 MB in the beginning and 57.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 69.7 MB. Max. memory is 16.1 GB. [2021-10-13 03:18:15,549 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 104.9 MB. Free memory is still 80.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 03:18:15,549 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.14 ms. Allocated memory is still 104.9 MB. Free memory was 63.5 MB in the beginning and 80.3 MB in the end (delta: -16.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 03:18:15,550 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.81 ms. Allocated memory is still 104.9 MB. Free memory was 80.3 MB in the beginning and 78.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 03:18:15,550 INFO L168 Benchmark]: Boogie Preprocessor took 27.10 ms. Allocated memory is still 104.9 MB. Free memory was 78.6 MB in the beginning and 77.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 03:18:15,551 INFO L168 Benchmark]: RCFGBuilder took 472.99 ms. Allocated memory is still 104.9 MB. Free memory was 77.5 MB in the beginning and 62.5 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-13 03:18:15,551 INFO L168 Benchmark]: CodeCheck took 12911.77 ms. Allocated memory was 104.9 MB in the beginning and 167.8 MB in the end (delta: 62.9 MB). Free memory was 62.5 MB in the beginning and 59.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 67.9 MB. Max. memory is 16.1 GB. [2021-10-13 03:18:15,552 INFO L168 Benchmark]: Witness Printer took 119.03 ms. Allocated memory is still 167.8 MB. Free memory was 59.2 MB in the beginning and 57.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 03:18:15,554 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, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12814.8ms, OverallIterations: 17, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 262144 SDtfs, 82432 SDslu, 0 SDs, 0 SdLazy, 1544152 SolverSat, 773024 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5136.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1735 GetRequests, 1467 SyntacticMatches, 82 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19593 ImplicationChecksByTransitivity, 9869.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 42.2ms SsaConstructionTime, 403.8ms SatisfiabilityAnalysisTime, 3399.5ms InterpolantComputationTime, 181 NumberOfCodeBlocks, 181 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 938 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 2 PerfectInterpolantSequences, 38/138 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L16] int MAX = __VERIFIER_nondet_uint(); [L17] COND FALSE !(!(MAX > 0)) [L18] char str1[MAX], str2[MAX]; [L19] int cont, i, j; [L20] cont = 0 [L22] i=0 [L22] COND TRUE i= 0 [L30] EXPR str1[0] [L30] str2[j] = str1[0] [L31] j++ [L29] i-- [L29] COND TRUE i >= 0 [L30] EXPR str1[0] [L30] str2[j] = str1[0] [L31] j++ [L29] i-- [L29] COND FALSE !(i >= 0) [L34] j = MAX-1 [L35] i=0 [L35] COND TRUE i