./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9378c8-e030-4c16-a586-a7c1b73d9f99/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9378c8-e030-4c16-a586-a7c1b73d9f99/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9378c8-e030-4c16-a586-a7c1b73d9f99/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9378c8-e030-4c16-a586-a7c1b73d9f99/bin/ukojak-Rh5K9KB4LI/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9378c8-e030-4c16-a586-a7c1b73d9f99/bin/ukojak-Rh5K9KB4LI/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9378c8-e030-4c16-a586-a7c1b73d9f99/bin/ukojak-Rh5K9KB4LI --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 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 03:53:31,155 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 03:53:31,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 03:53:31,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 03:53:31,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 03:53:31,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 03:53:31,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 03:53:31,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 03:53:31,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 03:53:31,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 03:53:31,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 03:53:31,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 03:53:31,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 03:53:31,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 03:53:31,204 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 03:53:31,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 03:53:31,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 03:53:31,207 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 03:53:31,209 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 03:53:31,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 03:53:31,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 03:53:31,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 03:53:31,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 03:53:31,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 03:53:31,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 03:53:31,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 03:53:31,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 03:53:31,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 03:53:31,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 03:53:31,225 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 03:53:31,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 03:53:31,226 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 03:53:31,227 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 03:53:31,228 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 03:53:31,229 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 03:53:31,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 03:53:31,231 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 03:53:31,231 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 03:53:31,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 03:53:31,233 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 03:53:31,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 03:53:31,235 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9378c8-e030-4c16-a586-a7c1b73d9f99/bin/ukojak-Rh5K9KB4LI/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-10-29 03:53:31,272 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 03:53:31,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 03:53:31,275 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 03:53:31,275 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 03:53:31,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 03:53:31,276 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 03:53:31,276 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 03:53:31,276 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 03:53:31,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 03:53:31,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 03:53:31,278 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 03:53:31,278 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 03:53:31,278 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 03:53:31,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 03:53:31,279 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 03:53:31,279 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 03:53:31,279 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 03:53:31,280 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 03:53:31,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 03:53:31,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:53:31,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 03:53:31,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 03:53:31,281 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 03:53:31,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 03:53:31,281 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_8a9378c8-e030-4c16-a586-a7c1b73d9f99/bin/ukojak-Rh5K9KB4LI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9378c8-e030-4c16-a586-a7c1b73d9f99/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce305d75684696e5fabb4c8d08830bbd90a67b7669f979309850a29850c4f917 [2021-10-29 03:53:31,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 03:53:31,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 03:53:31,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 03:53:31,628 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 03:53:31,628 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 03:53:31,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9378c8-e030-4c16-a586-a7c1b73d9f99/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i [2021-10-29 03:53:31,703 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9378c8-e030-4c16-a586-a7c1b73d9f99/bin/ukojak-Rh5K9KB4LI/data/e8e8201c0/4307b3f3981a409eb3e8df15ecccbe13/FLAG54920f4c0 [2021-10-29 03:53:32,280 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 03:53:32,280 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9378c8-e030-4c16-a586-a7c1b73d9f99/sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i [2021-10-29 03:53:32,293 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9378c8-e030-4c16-a586-a7c1b73d9f99/bin/ukojak-Rh5K9KB4LI/data/e8e8201c0/4307b3f3981a409eb3e8df15ecccbe13/FLAG54920f4c0 [2021-10-29 03:53:32,554 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9378c8-e030-4c16-a586-a7c1b73d9f99/bin/ukojak-Rh5K9KB4LI/data/e8e8201c0/4307b3f3981a409eb3e8df15ecccbe13 [2021-10-29 03:53:32,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 03:53:32,558 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 03:53:32,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 03:53:32,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 03:53:32,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 03:53:32,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:53:32" (1/1) ... [2021-10-29 03:53:32,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77e53d81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:53:32, skipping insertion in model container [2021-10-29 03:53:32,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:53:32" (1/1) ... [2021-10-29 03:53:32,586 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 03:53:32,626 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 03:53:32,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:53:32,929 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 03:53:32,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:53:33,013 INFO L208 MainTranslator]: Completed translation [2021-10-29 03:53:33,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:53:33 WrapperNode [2021-10-29 03:53:33,013 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 03:53:33,015 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 03:53:33,015 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 03:53:33,015 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 03:53:33,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:53:33" (1/1) ... [2021-10-29 03:53:33,050 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:53:33" (1/1) ... [2021-10-29 03:53:33,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 03:53:33,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 03:53:33,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 03:53:33,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 03:53:33,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:53:33" (1/1) ... [2021-10-29 03:53:33,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:53:33" (1/1) ... [2021-10-29 03:53:33,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:53:33" (1/1) ... [2021-10-29 03:53:33,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:53:33" (1/1) ... [2021-10-29 03:53:33,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:53:33" (1/1) ... [2021-10-29 03:53:33,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:53:33" (1/1) ... [2021-10-29 03:53:33,127 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:53:33" (1/1) ... [2021-10-29 03:53:33,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 03:53:33,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 03:53:33,131 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 03:53:33,131 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 03:53:33,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:53:33" (1/1) ... [2021-10-29 03:53:33,140 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:53:33,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9378c8-e030-4c16-a586-a7c1b73d9f99/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 03:53:33,177 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9378c8-e030-4c16-a586-a7c1b73d9f99/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 03:53:33,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9378c8-e030-4c16-a586-a7c1b73d9f99/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 03:53:33,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 03:53:33,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 03:53:33,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 03:53:33,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 03:53:33,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 03:53:33,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 03:53:33,869 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 03:53:33,874 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-29 03:53:33,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:53:33 BoogieIcfgContainer [2021-10-29 03:53:33,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 03:53:33,881 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 03:53:33,882 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 03:53:33,895 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 03:53:33,895 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:53:33" (1/1) ... [2021-10-29 03:53:33,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 03:53:33,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:53:33,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 54 states and 61 transitions. [2021-10-29 03:53:33,950 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2021-10-29 03:53:33,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 03:53:33,952 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:53:33,953 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:53:34,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:53:34,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:53:34,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:53:34,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 53 states and 60 transitions. [2021-10-29 03:53:34,145 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2021-10-29 03:53:34,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 03:53:34,145 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:53:34,146 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:53:34,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:53:34,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:53:34,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:53:34,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 55 states and 64 transitions. [2021-10-29 03:53:34,539 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2021-10-29 03:53:34,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 03:53:34,539 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:53:34,540 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:53:34,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:53:34,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:53:34,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:53:34,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 54 states and 63 transitions. [2021-10-29 03:53:34,594 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2021-10-29 03:53:34,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 03:53:34,595 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:53:34,596 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:53:34,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:53:34,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:53:35,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:53:35,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 55 states and 65 transitions. [2021-10-29 03:53:35,015 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2021-10-29 03:53:35,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 03:53:35,018 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:53:35,019 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:53:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:53:35,173 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:53:35,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:53:35,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 58 states and 73 transitions. [2021-10-29 03:53:35,706 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 73 transitions. [2021-10-29 03:53:35,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 03:53:35,707 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:53:35,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:53:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:53:35,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:53:36,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:53:36,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 59 states and 76 transitions. [2021-10-29 03:53:36,051 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 76 transitions. [2021-10-29 03:53:36,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 03:53:36,051 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:53:36,051 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:53:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:53:36,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:53:36,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:53:36,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 58 states and 75 transitions. [2021-10-29 03:53:36,088 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 75 transitions. [2021-10-29 03:53:36,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 03:53:36,088 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:53:36,088 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:53:36,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:53:36,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:53:36,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:53:36,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 60 states and 79 transitions. [2021-10-29 03:53:36,343 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 79 transitions. [2021-10-29 03:53:36,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 03:53:36,343 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:53:36,344 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:53:36,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:53:36,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:53:36,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:53:36,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 59 states and 78 transitions. [2021-10-29 03:53:36,411 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 78 transitions. [2021-10-29 03:53:36,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 03:53:36,416 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:53:36,416 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:53:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:53:36,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:53:36,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:53:36,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 61 states and 83 transitions. [2021-10-29 03:53:36,757 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 83 transitions. [2021-10-29 03:53:36,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 03:53:36,758 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:53:36,758 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:53:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:53:36,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:53:37,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:53:37,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 63 states and 87 transitions. [2021-10-29 03:53:37,247 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 87 transitions. [2021-10-29 03:53:37,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 03:53:37,248 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:53:37,248 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:53:37,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:53:37,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:53:38,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:53:38,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 67 states and 96 transitions. [2021-10-29 03:53:38,494 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 96 transitions. [2021-10-29 03:53:38,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 03:53:38,494 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:53:38,495 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:53:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:53:38,654 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:53:39,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:53:39,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 63 states and 85 transitions. [2021-10-29 03:53:39,012 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 85 transitions. [2021-10-29 03:53:39,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 03:53:39,015 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:53:39,015 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:53:39,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:53:39,135 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:53:39,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:53:39,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 60 states and 79 transitions. [2021-10-29 03:53:39,419 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 79 transitions. [2021-10-29 03:53:39,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 03:53:39,419 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:53:39,420 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:53:39,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:53:39,579 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:53:39,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:53:39,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 61 states and 79 transitions. [2021-10-29 03:53:39,800 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 79 transitions. [2021-10-29 03:53:39,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 03:53:39,801 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:53:39,802 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:53:39,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:53:39,983 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:53:40,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:53:40,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 62 states and 82 transitions. [2021-10-29 03:53:40,657 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 82 transitions. [2021-10-29 03:53:40,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 03:53:40,658 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:53:40,658 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:53:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:53:40,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:53:42,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:53:42,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 67 states and 93 transitions. [2021-10-29 03:53:42,596 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 93 transitions. [2021-10-29 03:53:42,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 03:53:42,598 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:53:42,599 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:53:42,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:53:42,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:53:42,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:53:42,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 66 states and 92 transitions. [2021-10-29 03:53:42,630 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 92 transitions. [2021-10-29 03:53:42,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 03:53:42,630 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:53:42,631 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:53:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:53:42,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:53:43,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:53:43,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 65 states and 91 transitions. [2021-10-29 03:53:43,093 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 91 transitions. [2021-10-29 03:53:43,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 03:53:43,093 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:53:43,093 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:53:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:53:43,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:53:43,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:53:43,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 66 states and 94 transitions. [2021-10-29 03:53:43,743 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 94 transitions. [2021-10-29 03:53:43,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 03:53:43,744 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:53:43,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:53:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:53:43,899 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 03:53:44,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:53:44,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 68 states and 98 transitions. [2021-10-29 03:53:44,490 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 98 transitions. [2021-10-29 03:53:44,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 03:53:44,491 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:53:44,492 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:53:44,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:53:44,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:53:45,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:53:45,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 72 states and 106 transitions. [2021-10-29 03:53:45,611 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 106 transitions. [2021-10-29 03:53:45,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 03:53:45,612 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:53:45,612 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:53:45,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:53:45,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:53:47,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:53:47,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 76 states and 116 transitions. [2021-10-29 03:53:47,303 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 116 transitions. [2021-10-29 03:53:47,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 03:53:47,305 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:53:47,305 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:53:47,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:53:47,452 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:53:47,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:53:47,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 70 states and 99 transitions. [2021-10-29 03:53:47,908 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 99 transitions. [2021-10-29 03:53:47,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 03:53:47,909 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:53:47,909 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:53:47,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:53:48,366 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:53:49,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:53:49,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 67 states and 93 transitions. [2021-10-29 03:53:49,096 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 93 transitions. [2021-10-29 03:53:49,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 03:53:49,096 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:53:49,096 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:53:49,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:53:49,148 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 03:53:49,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:53:49,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 68 states and 95 transitions. [2021-10-29 03:53:49,912 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 95 transitions. [2021-10-29 03:53:49,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 03:53:49,913 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:53:49,913 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:53:49,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:53:49,924 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:53:49,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:53:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:53:49,998 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:53:50,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:53:50,027 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 27 iterations. [2021-10-29 03:53:50,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 03:53:50 ImpRootNode [2021-10-29 03:53:50,053 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 03:53:50,053 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 03:53:50,054 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 03:53:50,054 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 03:53:50,054 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:53:33" (3/4) ... [2021-10-29 03:53:50,056 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 03:53:50,102 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9378c8-e030-4c16-a586-a7c1b73d9f99/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 03:53:50,102 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 03:53:50,104 INFO L168 Benchmark]: Toolchain (without parser) took 17544.34 ms. Allocated memory was 94.4 MB in the beginning and 220.2 MB in the end (delta: 125.8 MB). Free memory was 58.4 MB in the beginning and 180.9 MB in the end (delta: -122.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 03:53:50,105 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 94.4 MB. Free memory was 66.8 MB in the beginning and 66.8 MB in the end (delta: 30.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:53:50,105 INFO L168 Benchmark]: CACSL2BoogieTranslator took 453.89 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 58.2 MB in the beginning and 92.9 MB in the end (delta: -34.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 03:53:50,106 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.15 ms. Allocated memory is still 125.8 MB. Free memory was 92.9 MB in the beginning and 90.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:53:50,107 INFO L168 Benchmark]: Boogie Preprocessor took 42.77 ms. Allocated memory is still 125.8 MB. Free memory was 90.8 MB in the beginning and 89.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:53:50,108 INFO L168 Benchmark]: RCFGBuilder took 749.32 ms. Allocated memory is still 125.8 MB. Free memory was 89.3 MB in the beginning and 68.3 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-29 03:53:50,109 INFO L168 Benchmark]: CodeCheck took 16171.67 ms. Allocated memory was 125.8 MB in the beginning and 220.2 MB in the end (delta: 94.4 MB). Free memory was 68.3 MB in the beginning and 182.8 MB in the end (delta: -114.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:53:50,109 INFO L168 Benchmark]: Witness Printer took 48.86 ms. Allocated memory is still 220.2 MB. Free memory was 182.8 MB in the beginning and 180.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:53:50,114 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: 16.1s, OverallIterations: 27, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 138414688 SDtfs, 195719280 SDslu, 86247424 SDs, 0 SdLazy, 932962636 SolverSat, 314671532 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1581 GetRequests, 1278 SyntacticMatches, 57 SemanticMatches, 246 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29940 ImplicationChecksByTransitivity, 13.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 179 NumberOfCodeBlocks, 179 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 1377 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 16 PerfectInterpolantSequences, 4/29 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: [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; [L521] COND FALSE !(i < length - 1) [L527] nondetString[length-1] = '\0' [L528] return nondetString; [L546] char* s1 = 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; [L521] COND FALSE !(i < length - 1) [L527] nondetString[length-1] = '\0' [L528] return nondetString; [L547] char* s2 = build_nondet_String(); [L532] const char *sc1; [L533] const char *s; [L534] int c; [L535] sc1 = s1 [L535] EXPR \read(*sc1) [L535] COND FALSE !(*sc1 != '\0') [L543] return 0; * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 94.4 MB. Free memory was 66.8 MB in the beginning and 66.8 MB in the end (delta: 30.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 453.89 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 58.2 MB in the beginning and 92.9 MB in the end (delta: -34.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 71.15 ms. Allocated memory is still 125.8 MB. Free memory was 92.9 MB in the beginning and 90.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.77 ms. Allocated memory is still 125.8 MB. Free memory was 90.8 MB in the beginning and 89.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 749.32 ms. Allocated memory is still 125.8 MB. Free memory was 89.3 MB in the beginning and 68.3 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * CodeCheck took 16171.67 ms. Allocated memory was 125.8 MB in the beginning and 220.2 MB in the end (delta: 94.4 MB). Free memory was 68.3 MB in the beginning and 182.8 MB in the end (delta: -114.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 48.86 ms. Allocated memory is still 220.2 MB. Free memory was 182.8 MB in the beginning and 180.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-29 03:53:50,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a9378c8-e030-4c16-a586-a7c1b73d9f99/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...