./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/cstrchr_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c8c297-1b50-4314-9112-0d0c6de420f4/bin/ukojak-d1pc8ZmBRL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c8c297-1b50-4314-9112-0d0c6de420f4/bin/ukojak-d1pc8ZmBRL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c8c297-1b50-4314-9112-0d0c6de420f4/bin/ukojak-d1pc8ZmBRL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c8c297-1b50-4314-9112-0d0c6de420f4/bin/ukojak-d1pc8ZmBRL/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/cstrchr_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c8c297-1b50-4314-9112-0d0c6de420f4/bin/ukojak-d1pc8ZmBRL/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c8c297-1b50-4314-9112-0d0c6de420f4/bin/ukojak-d1pc8ZmBRL --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 10a3b461143c2c5d394f7bd34cd6fefed4195b79a5252178f7ede404a303cf96 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 07:20:21,739 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 07:20:21,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 07:20:21,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 07:20:21,812 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 07:20:21,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 07:20:21,821 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 07:20:21,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 07:20:21,831 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 07:20:21,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 07:20:21,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 07:20:21,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 07:20:21,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 07:20:21,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 07:20:21,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 07:20:21,862 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 07:20:21,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 07:20:21,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 07:20:21,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 07:20:21,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 07:20:21,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 07:20:21,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 07:20:21,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 07:20:21,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 07:20:21,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 07:20:21,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 07:20:21,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 07:20:21,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 07:20:21,906 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 07:20:21,908 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 07:20:21,910 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 07:20:21,911 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 07:20:21,913 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 07:20:21,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 07:20:21,917 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 07:20:21,918 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 07:20:21,919 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 07:20:21,919 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 07:20:21,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 07:20:21,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 07:20:21,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 07:20:21,923 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c8c297-1b50-4314-9112-0d0c6de420f4/bin/ukojak-d1pc8ZmBRL/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-25 07:20:21,983 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 07:20:21,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 07:20:21,988 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-25 07:20:21,988 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-25 07:20:21,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 07:20:21,989 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 07:20:21,989 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 07:20:21,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 07:20:21,990 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 07:20:21,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 07:20:21,991 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-25 07:20:21,992 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-25 07:20:21,992 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-25 07:20:21,992 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 07:20:21,993 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 07:20:21,993 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 07:20:21,993 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-25 07:20:21,994 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-25 07:20:21,994 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 07:20:21,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-25 07:20:21,995 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 07:20:21,995 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 07:20:21,995 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-25 07:20:21,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 07:20:21,996 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_02c8c297-1b50-4314-9112-0d0c6de420f4/bin/ukojak-d1pc8ZmBRL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c8c297-1b50-4314-9112-0d0c6de420f4/bin/ukojak-d1pc8ZmBRL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10a3b461143c2c5d394f7bd34cd6fefed4195b79a5252178f7ede404a303cf96 [2021-11-25 07:20:22,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 07:20:22,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 07:20:22,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 07:20:22,435 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 07:20:22,437 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 07:20:22,438 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c8c297-1b50-4314-9112-0d0c6de420f4/bin/ukojak-d1pc8ZmBRL/../../sv-benchmarks/c/array-memsafety/cstrchr_unsafe.i [2021-11-25 07:20:22,534 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c8c297-1b50-4314-9112-0d0c6de420f4/bin/ukojak-d1pc8ZmBRL/data/43fd60b29/903dbcd67635420eac29b8d4014aab65/FLAG7cf88aa0a [2021-11-25 07:20:23,221 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 07:20:23,222 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c8c297-1b50-4314-9112-0d0c6de420f4/sv-benchmarks/c/array-memsafety/cstrchr_unsafe.i [2021-11-25 07:20:23,239 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c8c297-1b50-4314-9112-0d0c6de420f4/bin/ukojak-d1pc8ZmBRL/data/43fd60b29/903dbcd67635420eac29b8d4014aab65/FLAG7cf88aa0a [2021-11-25 07:20:23,489 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c8c297-1b50-4314-9112-0d0c6de420f4/bin/ukojak-d1pc8ZmBRL/data/43fd60b29/903dbcd67635420eac29b8d4014aab65 [2021-11-25 07:20:23,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 07:20:23,493 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 07:20:23,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 07:20:23,495 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 07:20:23,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 07:20:23,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:20:23" (1/1) ... [2021-11-25 07:20:23,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@367004b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:20:23, skipping insertion in model container [2021-11-25 07:20:23,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:20:23" (1/1) ... [2021-11-25 07:20:23,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 07:20:23,571 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 07:20:24,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 07:20:24,026 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 07:20:24,124 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 07:20:24,171 INFO L208 MainTranslator]: Completed translation [2021-11-25 07:20:24,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:20:24 WrapperNode [2021-11-25 07:20:24,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 07:20:24,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 07:20:24,173 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 07:20:24,173 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 07:20:24,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:20:24" (1/1) ... [2021-11-25 07:20:24,207 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:20:24" (1/1) ... [2021-11-25 07:20:24,260 INFO L137 Inliner]: procedures = 118, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2021-11-25 07:20:24,261 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 07:20:24,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 07:20:24,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 07:20:24,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 07:20:24,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:20:24" (1/1) ... [2021-11-25 07:20:24,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:20:24" (1/1) ... [2021-11-25 07:20:24,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:20:24" (1/1) ... [2021-11-25 07:20:24,303 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:20:24" (1/1) ... [2021-11-25 07:20:24,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:20:24" (1/1) ... [2021-11-25 07:20:24,315 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:20:24" (1/1) ... [2021-11-25 07:20:24,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:20:24" (1/1) ... [2021-11-25 07:20:24,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 07:20:24,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 07:20:24,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 07:20:24,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 07:20:24,355 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:20:24" (1/1) ... [2021-11-25 07:20:24,365 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-25 07:20:24,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c8c297-1b50-4314-9112-0d0c6de420f4/bin/ukojak-d1pc8ZmBRL/z3 [2021-11-25 07:20:24,402 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c8c297-1b50-4314-9112-0d0c6de420f4/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-25 07:20:24,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c8c297-1b50-4314-9112-0d0c6de420f4/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-25 07:20:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 07:20:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 07:20:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 07:20:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 07:20:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 07:20:24,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 07:20:24,621 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 07:20:24,624 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 07:20:24,872 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 07:20:24,999 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 07:20:24,999 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-25 07:20:25,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:20:25 BoogieIcfgContainer [2021-11-25 07:20:25,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 07:20:25,005 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-25 07:20:25,006 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-25 07:20:25,020 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-25 07:20:25,020 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:20:25" (1/1) ... [2021-11-25 07:20:25,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 07:20:25,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:20:25,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 31 states and 34 transitions. [2021-11-25 07:20:25,144 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2021-11-25 07:20:25,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-25 07:20:25,147 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:20:25,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:20:25,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:20:25,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 07:20:25,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:20:25,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 30 states and 33 transitions. [2021-11-25 07:20:25,465 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2021-11-25 07:20:25,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-25 07:20:25,465 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:20:25,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:20:25,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:20:25,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 07:20:26,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:20:26,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 32 states and 37 transitions. [2021-11-25 07:20:26,014 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2021-11-25 07:20:26,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-25 07:20:26,018 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:20:26,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:20:26,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:20:26,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 07:20:26,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:20:26,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 31 states and 36 transitions. [2021-11-25 07:20:26,115 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2021-11-25 07:20:26,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-25 07:20:26,116 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:20:26,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:20:26,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:20:26,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 07:20:26,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:20:26,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 32 states and 38 transitions. [2021-11-25 07:20:26,627 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2021-11-25 07:20:26,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-25 07:20:26,627 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:20:26,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:20:26,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:20:26,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 07:20:26,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:20:26,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 33 states and 39 transitions. [2021-11-25 07:20:26,802 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2021-11-25 07:20:26,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-25 07:20:26,803 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:20:26,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:20:26,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:20:27,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 07:20:27,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:20:27,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 35 states and 43 transitions. [2021-11-25 07:20:27,464 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2021-11-25 07:20:27,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 07:20:27,465 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:20:27,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:20:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:20:27,659 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 07:20:28,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:20:28,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 38 states and 51 transitions. [2021-11-25 07:20:28,473 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 51 transitions. [2021-11-25 07:20:28,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 07:20:28,474 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:20:28,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:20:28,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:20:28,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 07:20:28,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:20:28,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 39 states and 55 transitions. [2021-11-25 07:20:28,996 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2021-11-25 07:20:28,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 07:20:28,996 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:20:28,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:20:29,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:20:29,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 07:20:29,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:20:29,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 40 states and 58 transitions. [2021-11-25 07:20:29,663 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 58 transitions. [2021-11-25 07:20:29,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 07:20:29,664 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:20:29,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:20:29,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:20:29,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 07:20:29,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:20:29,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 39 states and 57 transitions. [2021-11-25 07:20:29,694 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 57 transitions. [2021-11-25 07:20:29,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 07:20:29,695 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:20:29,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:20:29,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:20:29,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 07:20:29,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:20:29,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 38 states and 56 transitions. [2021-11-25 07:20:29,748 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 56 transitions. [2021-11-25 07:20:29,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 07:20:29,749 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:20:29,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:20:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:20:29,895 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 07:20:30,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:20:30,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 34 states and 44 transitions. [2021-11-25 07:20:30,248 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2021-11-25 07:20:30,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 07:20:30,248 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:20:30,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:20:30,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:20:30,335 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 07:20:30,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:20:30,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 37 transitions. [2021-11-25 07:20:30,667 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2021-11-25 07:20:30,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 07:20:30,668 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:20:30,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:20:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:20:30,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 07:20:30,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:20:30,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions. [2021-11-25 07:20:30,721 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2021-11-25 07:20:30,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 07:20:30,721 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:20:30,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:20:30,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:20:30,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 07:20:30,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:20:30,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 27 states and 32 transitions. [2021-11-25 07:20:30,788 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2021-11-25 07:20:30,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 07:20:30,789 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:20:30,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:20:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:20:30,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 07:20:31,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:20:31,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions. [2021-11-25 07:20:31,069 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2021-11-25 07:20:31,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 07:20:31,069 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:20:31,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:20:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:20:31,315 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 07:20:31,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:20:31,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 26 states and 29 transitions. [2021-11-25 07:20:31,814 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2021-11-25 07:20:31,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 07:20:31,815 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:20:31,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:20:31,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 07:20:31,842 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 07:20:31,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 07:20:31,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 07:20:31,914 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 07:20:31,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 07:20:31,955 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 18 iterations. [2021-11-25 07:20:32,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 07:20:32 ImpRootNode [2021-11-25 07:20:32,013 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-25 07:20:32,014 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 07:20:32,014 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 07:20:32,014 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 07:20:32,015 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:20:25" (3/4) ... [2021-11-25 07:20:32,017 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-25 07:20:32,094 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c8c297-1b50-4314-9112-0d0c6de420f4/bin/ukojak-d1pc8ZmBRL/witness.graphml [2021-11-25 07:20:32,105 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 07:20:32,106 INFO L158 Benchmark]: Toolchain (without parser) took 8612.84ms. Allocated memory was 90.2MB in the beginning and 134.2MB in the end (delta: 44.0MB). Free memory was 67.6MB in the beginning and 72.5MB in the end (delta: -4.9MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2021-11-25 07:20:32,107 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 90.2MB. Free memory was 64.8MB in the beginning and 64.7MB in the end (delta: 41.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 07:20:32,107 INFO L158 Benchmark]: CACSL2BoogieTranslator took 677.50ms. Allocated memory is still 90.2MB. Free memory was 67.4MB in the beginning and 59.0MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 07:20:32,108 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.40ms. Allocated memory is still 90.2MB. Free memory was 58.7MB in the beginning and 56.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 07:20:32,109 INFO L158 Benchmark]: Boogie Preprocessor took 77.88ms. Allocated memory is still 90.2MB. Free memory was 56.9MB in the beginning and 55.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 07:20:32,110 INFO L158 Benchmark]: RCFGBuilder took 662.66ms. Allocated memory is still 90.2MB. Free memory was 55.5MB in the beginning and 41.0MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-25 07:20:32,111 INFO L158 Benchmark]: CodeCheck took 7008.26ms. Allocated memory was 90.2MB in the beginning and 134.2MB in the end (delta: 44.0MB). Free memory was 41.0MB in the beginning and 74.6MB in the end (delta: -33.6MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2021-11-25 07:20:32,111 INFO L158 Benchmark]: Witness Printer took 90.92ms. Allocated memory is still 134.2MB. Free memory was 74.6MB in the beginning and 72.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 07:20:32,116 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, 31 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 6.9s, OverallIterations: 18, 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, 374 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 320 mSDsluCounter, 204 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 131 mSDsCounter, 462 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1504 IncrementalHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 462 mSolverCounterUnsat, 88 mSDtfsCounter, 1504 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 807 GetRequests, 675 SyntacticMatches, 28 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4522 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 642 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 11 PerfectInterpolantSequences, 2/19 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: 537]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L536] 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={-1:0}] [L521] COND FALSE !(i < length - 1) VAL [i=0, length=1, nondetString={-1:0}] [L526] nondetString[length-1] = '\0' [L527] return nondetString; [L536] RET, EXPR build_nondet_String() [L536] char* s = build_nondet_String(); [L537] CALL cstrchr(s,__VERIFIER_nondet_int()) [L531] EXPR \read(*s) [L531] *s != '\0' && *s != (char)c VAL [*s != '\0' && *s != (char)c=0, \old(c)=1, \read(*s)=0, c=1, s={-1:0}, s={-1:0}] [L531] COND FALSE !(*s != '\0' && *s != (char)c) [L533] EXPR \read(*s) [L533] EXPR (*s == c) ? (char *) s : 0 [L533] return ( (*s == c) ? (char *) s : 0 ); [L537] RET cstrchr(s,__VERIFIER_nondet_int()) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 90.2MB. Free memory was 64.8MB in the beginning and 64.7MB in the end (delta: 41.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 677.50ms. Allocated memory is still 90.2MB. Free memory was 67.4MB in the beginning and 59.0MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.40ms. Allocated memory is still 90.2MB. Free memory was 58.7MB in the beginning and 56.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.88ms. Allocated memory is still 90.2MB. Free memory was 56.9MB in the beginning and 55.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 662.66ms. Allocated memory is still 90.2MB. Free memory was 55.5MB in the beginning and 41.0MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 7008.26ms. Allocated memory was 90.2MB in the beginning and 134.2MB in the end (delta: 44.0MB). Free memory was 41.0MB in the beginning and 74.6MB in the end (delta: -33.6MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * Witness Printer took 90.92ms. Allocated memory is still 134.2MB. Free memory was 74.6MB in the beginning and 72.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-25 07:20:32,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02c8c297-1b50-4314-9112-0d0c6de420f4/bin/ukojak-d1pc8ZmBRL/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)