./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e52bba86-15fe-4316-8e4e-e250bb38fa8d/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e52bba86-15fe-4316-8e4e-e250bb38fa8d/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e52bba86-15fe-4316-8e4e-e250bb38fa8d/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e52bba86-15fe-4316-8e4e-e250bb38fa8d/bin/ukojak-LBtLqBUTdQ/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e52bba86-15fe-4316-8e4e-e250bb38fa8d/bin/ukojak-LBtLqBUTdQ/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e52bba86-15fe-4316-8e4e-e250bb38fa8d/bin/ukojak-LBtLqBUTdQ --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 32bit --witnessprinter.graph.data.programhash ce305d75684696e5fabb4c8d08830bbd90a67b7669f979309850a29850c4f917 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:32:12,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:32:12,659 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:32:12,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:32:12,729 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:32:12,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:32:12,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:32:12,741 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:32:12,744 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:32:12,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:32:12,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:32:12,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:32:12,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:32:12,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:32:12,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:32:12,769 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:32:12,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:32:12,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:32:12,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:32:12,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:32:12,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:32:12,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:32:12,791 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:32:12,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:32:12,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:32:12,800 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:32:12,800 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:32:12,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:32:12,803 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:32:12,805 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:32:12,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:32:12,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:32:12,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:32:12,811 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:32:12,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:32:12,813 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:32:12,814 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:32:12,814 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:32:12,814 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:32:12,815 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:32:12,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:32:12,817 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e52bba86-15fe-4316-8e4e-e250bb38fa8d/bin/ukojak-LBtLqBUTdQ/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-23 00:32:12,854 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:32:12,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:32:12,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:32:12,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:32:12,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:32:12,856 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:32:12,856 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 00:32:12,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:32:12,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:32:12,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:32:12,857 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 00:32:12,858 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 00:32:12,858 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 00:32:12,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:32:12,858 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:32:12,858 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:32:12,861 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:32:12,861 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:32:12,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:32:12,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:32:12,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:32:12,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:32:12,863 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:32:12,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:32:12,863 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_e52bba86-15fe-4316-8e4e-e250bb38fa8d/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e52bba86-15fe-4316-8e4e-e250bb38fa8d/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce305d75684696e5fabb4c8d08830bbd90a67b7669f979309850a29850c4f917 [2021-11-23 00:32:13,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:32:13,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:32:13,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:32:13,200 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:32:13,201 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:32:13,203 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e52bba86-15fe-4316-8e4e-e250bb38fa8d/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i [2021-11-23 00:32:13,273 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e52bba86-15fe-4316-8e4e-e250bb38fa8d/bin/ukojak-LBtLqBUTdQ/data/04e78bed7/6fe888471096487eb8d9f3f7fc58d13d/FLAGbf08c4ec4 [2021-11-23 00:32:13,834 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:32:13,835 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e52bba86-15fe-4316-8e4e-e250bb38fa8d/sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i [2021-11-23 00:32:13,858 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e52bba86-15fe-4316-8e4e-e250bb38fa8d/bin/ukojak-LBtLqBUTdQ/data/04e78bed7/6fe888471096487eb8d9f3f7fc58d13d/FLAGbf08c4ec4 [2021-11-23 00:32:14,116 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e52bba86-15fe-4316-8e4e-e250bb38fa8d/bin/ukojak-LBtLqBUTdQ/data/04e78bed7/6fe888471096487eb8d9f3f7fc58d13d [2021-11-23 00:32:14,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:32:14,122 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:32:14,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:32:14,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:32:14,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:32:14,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:32:14" (1/1) ... [2021-11-23 00:32:14,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25f3a152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:14, skipping insertion in model container [2021-11-23 00:32:14,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:32:14" (1/1) ... [2021-11-23 00:32:14,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:32:14,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:32:14,532 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:32:14,539 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:32:14,576 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:32:14,603 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:32:14,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:14 WrapperNode [2021-11-23 00:32:14,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:32:14,605 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:32:14,605 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:32:14,606 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:32:14,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:14" (1/1) ... [2021-11-23 00:32:14,626 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:14" (1/1) ... [2021-11-23 00:32:14,651 INFO L137 Inliner]: procedures = 118, calls = 16, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 116 [2021-11-23 00:32:14,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:32:14,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:32:14,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:32:14,652 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:32:14,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:14" (1/1) ... [2021-11-23 00:32:14,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:14" (1/1) ... [2021-11-23 00:32:14,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:14" (1/1) ... [2021-11-23 00:32:14,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:14" (1/1) ... [2021-11-23 00:32:14,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:14" (1/1) ... [2021-11-23 00:32:14,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:14" (1/1) ... [2021-11-23 00:32:14,678 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:14" (1/1) ... [2021-11-23 00:32:14,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:32:14,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:32:14,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:32:14,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:32:14,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:14" (1/1) ... [2021-11-23 00:32:14,700 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:32:14,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e52bba86-15fe-4316-8e4e-e250bb38fa8d/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:32:14,725 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e52bba86-15fe-4316-8e4e-e250bb38fa8d/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:32:14,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e52bba86-15fe-4316-8e4e-e250bb38fa8d/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:32:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 00:32:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 00:32:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 00:32:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 00:32:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:32:14,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:32:14,921 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:32:14,923 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:32:15,258 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:32:15,317 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:32:15,317 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-23 00:32:15,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:32:15 BoogieIcfgContainer [2021-11-23 00:32:15,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:32:15,321 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:32:15,321 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:32:15,345 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:32:15,345 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:32:15" (1/1) ... [2021-11-23 00:32:15,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:32:15,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:32:15,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 54 states and 61 transitions. [2021-11-23 00:32:15,410 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2021-11-23 00:32:15,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 00:32:15,412 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:32:15,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:32:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:32:15,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:32:15,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:32:15,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 53 states and 60 transitions. [2021-11-23 00:32:15,616 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2021-11-23 00:32:15,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 00:32:15,617 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:32:15,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:32:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:32:15,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:32:15,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:32:15,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 55 states and 64 transitions. [2021-11-23 00:32:15,959 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2021-11-23 00:32:15,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 00:32:15,959 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:32:15,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:32:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:32:15,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:32:16,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:32:16,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 54 states and 63 transitions. [2021-11-23 00:32:16,003 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2021-11-23 00:32:16,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 00:32:16,003 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:32:16,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:32:16,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:32:16,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:32:16,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:32:16,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 55 states and 65 transitions. [2021-11-23 00:32:16,303 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2021-11-23 00:32:16,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 00:32:16,306 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:32:16,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:32:16,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:32:16,438 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:32:16,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:32:16,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 58 states and 72 transitions. [2021-11-23 00:32:16,922 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 72 transitions. [2021-11-23 00:32:16,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 00:32:16,922 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:32:16,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:32:16,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:32:17,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:32:17,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:32:17,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 59 states and 74 transitions. [2021-11-23 00:32:17,254 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 74 transitions. [2021-11-23 00:32:17,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 00:32:17,255 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:32:17,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:32:17,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:32:17,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:32:17,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:32:17,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 58 states and 73 transitions. [2021-11-23 00:32:17,341 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 73 transitions. [2021-11-23 00:32:17,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 00:32:17,341 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:32:17,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:32:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:32:17,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:32:17,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:32:17,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 60 states and 77 transitions. [2021-11-23 00:32:17,414 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 77 transitions. [2021-11-23 00:32:17,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 00:32:17,414 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:32:17,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:32:17,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:32:17,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:32:17,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:32:17,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 59 states and 76 transitions. [2021-11-23 00:32:17,476 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 76 transitions. [2021-11-23 00:32:17,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 00:32:17,477 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:32:17,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:32:17,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:32:17,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:32:17,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:32:17,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 61 states and 81 transitions. [2021-11-23 00:32:17,675 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 81 transitions. [2021-11-23 00:32:17,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 00:32:17,676 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:32:17,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:32:17,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:32:17,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:32:18,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:32:18,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 63 states and 85 transitions. [2021-11-23 00:32:18,254 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 85 transitions. [2021-11-23 00:32:18,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 00:32:18,255 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:32:18,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:32:18,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:32:18,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:32:19,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:32:19,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 67 states and 94 transitions. [2021-11-23 00:32:19,345 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 94 transitions. [2021-11-23 00:32:19,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:32:19,346 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:32:19,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:32:19,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:32:19,498 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:32:19,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:32:19,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 59 states and 77 transitions. [2021-11-23 00:32:19,768 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 77 transitions. [2021-11-23 00:32:19,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:32:19,770 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:32:19,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:32:19,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:32:19,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:32:19,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:32:19,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 60 states and 77 transitions. [2021-11-23 00:32:19,847 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 77 transitions. [2021-11-23 00:32:19,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:32:19,847 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:32:19,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:32:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:32:19,884 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:32:20,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:32:20,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 61 states and 80 transitions. [2021-11-23 00:32:20,099 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 80 transitions. [2021-11-23 00:32:20,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 00:32:20,100 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:32:20,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:32:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:32:20,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:32:20,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:32:20,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 60 states and 79 transitions. [2021-11-23 00:32:20,129 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 79 transitions. [2021-11-23 00:32:20,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 00:32:20,130 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:32:20,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:32:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:32:20,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:32:20,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:32:20,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 62 states and 82 transitions. [2021-11-23 00:32:20,432 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 82 transitions. [2021-11-23 00:32:20,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 00:32:20,432 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:32:20,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:32:20,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:32:20,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:32:20,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:32:20,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 63 states and 85 transitions. [2021-11-23 00:32:20,980 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 85 transitions. [2021-11-23 00:32:20,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 00:32:20,980 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:32:20,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:32:21,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:32:21,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 00:32:21,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:32:21,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 64 states and 88 transitions. [2021-11-23 00:32:21,592 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 88 transitions. [2021-11-23 00:32:21,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 00:32:21,593 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:32:21,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:32:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:32:21,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:32:22,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:32:22,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 68 states and 95 transitions. [2021-11-23 00:32:22,329 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 95 transitions. [2021-11-23 00:32:22,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 00:32:22,329 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:32:22,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:32:22,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:32:22,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:32:23,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:32:23,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 72 states and 104 transitions. [2021-11-23 00:32:23,539 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 104 transitions. [2021-11-23 00:32:23,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 00:32:23,540 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:32:23,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:32:23,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:32:23,652 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:32:23,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:32:23,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 66 states and 88 transitions. [2021-11-23 00:32:23,804 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 88 transitions. [2021-11-23 00:32:23,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 00:32:23,805 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:32:23,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:32:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:32:23,827 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 00:32:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:32:23,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:32:23,918 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 00:32:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:32:23,952 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 23 iterations. [2021-11-23 00:32:23,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:32:23 ImpRootNode [2021-11-23 00:32:23,985 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 00:32:23,985 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 00:32:23,985 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 00:32:23,985 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 00:32:23,986 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:32:15" (3/4) ... [2021-11-23 00:32:23,987 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 00:32:24,054 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e52bba86-15fe-4316-8e4e-e250bb38fa8d/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 00:32:24,055 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 00:32:24,056 INFO L158 Benchmark]: Toolchain (without parser) took 9933.48ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 53.4MB in the beginning and 97.8MB in the end (delta: -44.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:32:24,056 INFO L158 Benchmark]: CDTParser took 0.63ms. Allocated memory is still 92.3MB. Free memory is still 71.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:32:24,057 INFO L158 Benchmark]: CACSL2BoogieTranslator took 479.09ms. Allocated memory is still 92.3MB. Free memory was 53.2MB in the beginning and 61.1MB in the end (delta: -7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 00:32:24,058 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.23ms. Allocated memory is still 92.3MB. Free memory was 61.1MB in the beginning and 59.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:32:24,058 INFO L158 Benchmark]: Boogie Preprocessor took 29.19ms. Allocated memory is still 92.3MB. Free memory was 58.9MB in the beginning and 57.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:32:24,059 INFO L158 Benchmark]: RCFGBuilder took 638.16ms. Allocated memory is still 92.3MB. Free memory was 57.6MB in the beginning and 39.5MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-23 00:32:24,060 INFO L158 Benchmark]: CodeCheck took 8663.73ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 39.2MB in the beginning and 99.9MB in the end (delta: -60.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:32:24,061 INFO L158 Benchmark]: Witness Printer took 69.74ms. Allocated memory is still 134.2MB. Free memory was 99.9MB in the beginning and 97.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:32:24,065 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, 54 locations, 27 error locations. Started 1 CEGAR loops. OverallTime: 8.6s, OverallIterations: 23, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 748 SdHoareTripleChecker+Valid, 6.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 670 mSDsluCounter, 222 SdHoareTripleChecker+Invalid, 4.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 148 mSDsCounter, 856 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3116 IncrementalHoareTripleChecker+Invalid, 3972 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 856 mSolverCounterUnsat, 126 mSDtfsCounter, 3116 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1246 GetRequests, 1059 SyntacticMatches, 33 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10856 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 834 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 16 PerfectInterpolantSequences, 3/18 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: 548]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L546] CALL, EXPR build_nondet_String() [L515] int length = __VERIFIER_nondet_int(); [L516] COND TRUE length < 1 [L517] length = 1 [L519] char* nondetString = (char*) malloc(length * sizeof(char)); [L521] int i = 0; VAL [i=0, length=1, nondetString={26959:0}] [L521] COND FALSE !(i < length - 1) VAL [i=0, length=1, nondetString={26959:0}] [L527] nondetString[length-1] = '\0' [L528] return nondetString; [L546] RET, EXPR build_nondet_String() [L546] char* s1 = build_nondet_String(); [L547] CALL, EXPR build_nondet_String() [L515] int length = __VERIFIER_nondet_int(); [L516] COND FALSE !(length < 1) [L519] char* nondetString = (char*) malloc(length * sizeof(char)); [L521] int i = 0; VAL [i=0, length=1, nondetString={26958:0}] [L521] COND FALSE !(i < length - 1) VAL [i=0, length=1, nondetString={26958:0}] [L527] nondetString[length-1] = '\0' [L528] return nondetString; [L547] RET, EXPR build_nondet_String() [L547] char* s2 = build_nondet_String(); [L548] CALL cstrpbrk(s1,s2) [L532] const char *sc1; [L533] const char *s; [L534] int c; [L535] sc1 = s1 VAL [s1={26959:0}, s1={26959:0}, s2={26958:0}, s2={26958:0}, sc1={26959:0}] [L535] EXPR \read(*sc1) VAL [\read(*sc1)=0, s1={26959:0}, s1={26959:0}, s2={26958:0}, s2={26958:0}, sc1={26959:0}] [L535] COND FALSE !(*sc1 != '\0') [L543] return 0; VAL [\result={0:0}, s1={26959:0}, s1={26959:0}, s2={26958:0}, s2={26958:0}, sc1={26959:0}] [L548] RET cstrpbrk(s1,s2) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63ms. Allocated memory is still 92.3MB. Free memory is still 71.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 479.09ms. Allocated memory is still 92.3MB. Free memory was 53.2MB in the beginning and 61.1MB in the end (delta: -7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.23ms. Allocated memory is still 92.3MB. Free memory was 61.1MB in the beginning and 59.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.19ms. Allocated memory is still 92.3MB. Free memory was 58.9MB in the beginning and 57.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 638.16ms. Allocated memory is still 92.3MB. Free memory was 57.6MB in the beginning and 39.5MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 8663.73ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 39.2MB in the beginning and 99.9MB in the end (delta: -60.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 69.74ms. Allocated memory is still 134.2MB. Free memory was 99.9MB in the beginning and 97.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 00:32:24,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e52bba86-15fe-4316-8e4e-e250bb38fa8d/bin/ukojak-LBtLqBUTdQ/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)