./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 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1f576d4-de3f-474d-b2f4-04b9ac808f87/bin/ukojak-vF6T2TMglN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1f576d4-de3f-474d-b2f4-04b9ac808f87/bin/ukojak-vF6T2TMglN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1f576d4-de3f-474d-b2f4-04b9ac808f87/bin/ukojak-vF6T2TMglN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1f576d4-de3f-474d-b2f4-04b9ac808f87/bin/ukojak-vF6T2TMglN/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1f576d4-de3f-474d-b2f4-04b9ac808f87/bin/ukojak-vF6T2TMglN/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1f576d4-de3f-474d-b2f4-04b9ac808f87/bin/ukojak-vF6T2TMglN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ce305d75684696e5fabb4c8d08830bbd90a67b7669f979309850a29850c4f917 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 05:10:10,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 05:10:10,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 05:10:10,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 05:10:10,225 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 05:10:10,227 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 05:10:10,228 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 05:10:10,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 05:10:10,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 05:10:10,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 05:10:10,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 05:10:10,237 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 05:10:10,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 05:10:10,239 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 05:10:10,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 05:10:10,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 05:10:10,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 05:10:10,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 05:10:10,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 05:10:10,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 05:10:10,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 05:10:10,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 05:10:10,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 05:10:10,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 05:10:10,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 05:10:10,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 05:10:10,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 05:10:10,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 05:10:10,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 05:10:10,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 05:10:10,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 05:10:10,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 05:10:10,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 05:10:10,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 05:10:10,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 05:10:10,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 05:10:10,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 05:10:10,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 05:10:10,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 05:10:10,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 05:10:10,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 05:10:10,276 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1f576d4-de3f-474d-b2f4-04b9ac808f87/bin/ukojak-vF6T2TMglN/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-21 05:10:10,318 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 05:10:10,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 05:10:10,320 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 05:10:10,320 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 05:10:10,320 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 05:10:10,321 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 05:10:10,321 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 05:10:10,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 05:10:10,321 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 05:10:10,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 05:10:10,322 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-21 05:10:10,322 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-21 05:10:10,323 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-21 05:10:10,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 05:10:10,323 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 05:10:10,323 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 05:10:10,324 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-21 05:10:10,324 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-21 05:10:10,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 05:10:10,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 05:10:10,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 05:10:10,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 05:10:10,326 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-21 05:10:10,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 05:10:10,326 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_d1f576d4-de3f-474d-b2f4-04b9ac808f87/bin/ukojak-vF6T2TMglN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1f576d4-de3f-474d-b2f4-04b9ac808f87/bin/ukojak-vF6T2TMglN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce305d75684696e5fabb4c8d08830bbd90a67b7669f979309850a29850c4f917 [2021-11-21 05:10:10,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 05:10:10,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 05:10:10,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 05:10:10,645 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 05:10:10,645 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 05:10:10,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1f576d4-de3f-474d-b2f4-04b9ac808f87/bin/ukojak-vF6T2TMglN/../../sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i [2021-11-21 05:10:10,720 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1f576d4-de3f-474d-b2f4-04b9ac808f87/bin/ukojak-vF6T2TMglN/data/b263fa4bb/fff5b2f27ef84d83b02d5886d5116110/FLAG26bbf043a [2021-11-21 05:10:11,298 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 05:10:11,299 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1f576d4-de3f-474d-b2f4-04b9ac808f87/sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i [2021-11-21 05:10:11,312 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1f576d4-de3f-474d-b2f4-04b9ac808f87/bin/ukojak-vF6T2TMglN/data/b263fa4bb/fff5b2f27ef84d83b02d5886d5116110/FLAG26bbf043a [2021-11-21 05:10:11,614 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1f576d4-de3f-474d-b2f4-04b9ac808f87/bin/ukojak-vF6T2TMglN/data/b263fa4bb/fff5b2f27ef84d83b02d5886d5116110 [2021-11-21 05:10:11,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 05:10:11,621 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 05:10:11,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 05:10:11,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 05:10:11,627 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 05:10:11,628 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:10:11" (1/1) ... [2021-11-21 05:10:11,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2285d51e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:11, skipping insertion in model container [2021-11-21 05:10:11,629 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:10:11" (1/1) ... [2021-11-21 05:10:11,636 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 05:10:11,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 05:10:12,008 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 05:10:12,015 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 05:10:12,085 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 05:10:12,128 INFO L208 MainTranslator]: Completed translation [2021-11-21 05:10:12,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:12 WrapperNode [2021-11-21 05:10:12,129 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 05:10:12,131 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 05:10:12,131 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 05:10:12,132 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 05:10:12,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:12" (1/1) ... [2021-11-21 05:10:12,167 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:12" (1/1) ... [2021-11-21 05:10:12,200 INFO L137 Inliner]: procedures = 118, calls = 16, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 116 [2021-11-21 05:10:12,205 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 05:10:12,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 05:10:12,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 05:10:12,207 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 05:10:12,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:12" (1/1) ... [2021-11-21 05:10:12,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:12" (1/1) ... [2021-11-21 05:10:12,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:12" (1/1) ... [2021-11-21 05:10:12,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:12" (1/1) ... [2021-11-21 05:10:12,226 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:12" (1/1) ... [2021-11-21 05:10:12,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:12" (1/1) ... [2021-11-21 05:10:12,232 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:12" (1/1) ... [2021-11-21 05:10:12,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 05:10:12,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 05:10:12,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 05:10:12,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 05:10:12,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:12" (1/1) ... [2021-11-21 05:10:12,249 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 05:10:12,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1f576d4-de3f-474d-b2f4-04b9ac808f87/bin/ukojak-vF6T2TMglN/z3 [2021-11-21 05:10:12,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1f576d4-de3f-474d-b2f4-04b9ac808f87/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-21 05:10:12,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1f576d4-de3f-474d-b2f4-04b9ac808f87/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-21 05:10:12,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 05:10:12,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 05:10:12,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 05:10:12,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 05:10:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 05:10:12,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 05:10:12,461 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 05:10:12,463 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 05:10:12,799 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 05:10:12,868 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 05:10:12,870 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-21 05:10:12,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:10:12 BoogieIcfgContainer [2021-11-21 05:10:12,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 05:10:12,874 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-21 05:10:12,875 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-21 05:10:12,886 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-21 05:10:12,886 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:10:12" (1/1) ... [2021-11-21 05:10:12,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 05:10:12,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:12,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 54 states and 61 transitions. [2021-11-21 05:10:12,981 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2021-11-21 05:10:12,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-21 05:10:12,984 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:12,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:13,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:13,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:13,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:13,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 53 states and 60 transitions. [2021-11-21 05:10:13,210 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2021-11-21 05:10:13,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-21 05:10:13,211 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:13,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:13,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:13,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:13,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:13,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 55 states and 64 transitions. [2021-11-21 05:10:13,551 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2021-11-21 05:10:13,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-21 05:10:13,552 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:13,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:13,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:13,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:13,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:13,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 54 states and 63 transitions. [2021-11-21 05:10:13,622 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2021-11-21 05:10:13,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-21 05:10:13,623 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:13,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:13,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:13,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:14,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:14,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 55 states and 65 transitions. [2021-11-21 05:10:14,016 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2021-11-21 05:10:14,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 05:10:14,019 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:14,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:14,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:14,171 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:14,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:14,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 58 states and 72 transitions. [2021-11-21 05:10:14,659 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 72 transitions. [2021-11-21 05:10:14,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 05:10:14,659 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:14,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:14,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:14,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:15,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:15,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 59 states and 74 transitions. [2021-11-21 05:10:15,003 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 74 transitions. [2021-11-21 05:10:15,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 05:10:15,004 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:15,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:15,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:15,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:15,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:15,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 58 states and 73 transitions. [2021-11-21 05:10:15,059 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 73 transitions. [2021-11-21 05:10:15,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 05:10:15,063 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:15,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:15,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:15,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:15,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 60 states and 77 transitions. [2021-11-21 05:10:15,136 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 77 transitions. [2021-11-21 05:10:15,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 05:10:15,136 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:15,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:15,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:15,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:15,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:15,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 59 states and 76 transitions. [2021-11-21 05:10:15,167 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 76 transitions. [2021-11-21 05:10:15,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 05:10:15,167 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:15,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:15,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:15,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:15,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:15,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 61 states and 81 transitions. [2021-11-21 05:10:15,305 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 81 transitions. [2021-11-21 05:10:15,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-21 05:10:15,306 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:15,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:15,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:15,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:15,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:15,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 63 states and 85 transitions. [2021-11-21 05:10:15,800 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 85 transitions. [2021-11-21 05:10:15,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-21 05:10:15,801 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:15,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:16,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:16,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:16,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 67 states and 94 transitions. [2021-11-21 05:10:16,920 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 94 transitions. [2021-11-21 05:10:16,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-21 05:10:16,921 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:16,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:16,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:17,075 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:17,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:17,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 59 states and 77 transitions. [2021-11-21 05:10:17,355 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 77 transitions. [2021-11-21 05:10:17,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-21 05:10:17,355 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:17,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:17,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:17,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:17,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:17,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 60 states and 77 transitions. [2021-11-21 05:10:17,445 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 77 transitions. [2021-11-21 05:10:17,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-21 05:10:17,448 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:17,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:17,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:17,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:17,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 61 states and 80 transitions. [2021-11-21 05:10:17,723 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 80 transitions. [2021-11-21 05:10:17,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 05:10:17,724 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:17,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:17,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:17,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:17,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:17,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 60 states and 79 transitions. [2021-11-21 05:10:17,751 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 79 transitions. [2021-11-21 05:10:17,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 05:10:17,751 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:17,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:17,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:17,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:18,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:18,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 62 states and 82 transitions. [2021-11-21 05:10:18,058 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 82 transitions. [2021-11-21 05:10:18,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 05:10:18,059 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:18,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:18,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:18,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 05:10:18,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:18,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 63 states and 86 transitions. [2021-11-21 05:10:18,567 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 86 transitions. [2021-11-21 05:10:18,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 05:10:18,567 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:18,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:18,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:18,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:19,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:19,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 64 states and 89 transitions. [2021-11-21 05:10:19,177 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 89 transitions. [2021-11-21 05:10:19,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-21 05:10:19,177 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:19,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:19,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:19,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:19,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 68 states and 96 transitions. [2021-11-21 05:10:19,926 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 96 transitions. [2021-11-21 05:10:19,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-21 05:10:19,926 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:19,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:20,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:21,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:21,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 72 states and 105 transitions. [2021-11-21 05:10:21,114 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 105 transitions. [2021-11-21 05:10:21,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-21 05:10:21,115 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:21,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:21,259 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:21,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:21,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 66 states and 89 transitions. [2021-11-21 05:10:21,412 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 89 transitions. [2021-11-21 05:10:21,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-21 05:10:21,412 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:21,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:21,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 05:10:21,425 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 05:10:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 05:10:21,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 05:10:21,482 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 05:10:21,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 05:10:21,518 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 23 iterations. [2021-11-21 05:10:21,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 05:10:21 ImpRootNode [2021-11-21 05:10:21,553 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-21 05:10:21,554 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 05:10:21,554 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 05:10:21,554 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 05:10:21,555 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:10:12" (3/4) ... [2021-11-21 05:10:21,557 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-21 05:10:21,609 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1f576d4-de3f-474d-b2f4-04b9ac808f87/bin/ukojak-vF6T2TMglN/witness.graphml [2021-11-21 05:10:21,609 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 05:10:21,610 INFO L158 Benchmark]: Toolchain (without parser) took 9988.44ms. Allocated memory was 119.5MB in the beginning and 182.5MB in the end (delta: 62.9MB). Free memory was 78.5MB in the beginning and 125.8MB in the end (delta: -47.3MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2021-11-21 05:10:21,611 INFO L158 Benchmark]: CDTParser took 0.62ms. Allocated memory is still 119.5MB. Free memory was 96.5MB in the beginning and 96.4MB in the end (delta: 79.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 05:10:21,612 INFO L158 Benchmark]: CACSL2BoogieTranslator took 504.70ms. Allocated memory is still 119.5MB. Free memory was 78.3MB in the beginning and 86.0MB in the end (delta: -7.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-21 05:10:21,613 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.19ms. Allocated memory is still 119.5MB. Free memory was 86.0MB in the beginning and 83.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 05:10:21,613 INFO L158 Benchmark]: Boogie Preprocessor took 29.11ms. Allocated memory is still 119.5MB. Free memory was 83.8MB in the beginning and 82.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 05:10:21,614 INFO L158 Benchmark]: RCFGBuilder took 637.53ms. Allocated memory is still 119.5MB. Free memory was 82.1MB in the beginning and 64.4MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-21 05:10:21,615 INFO L158 Benchmark]: CodeCheck took 8679.08ms. Allocated memory was 119.5MB in the beginning and 182.5MB in the end (delta: 62.9MB). Free memory was 64.0MB in the beginning and 128.9MB in the end (delta: -64.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 05:10:21,616 INFO L158 Benchmark]: Witness Printer took 55.47ms. Allocated memory is still 182.5MB. Free memory was 128.9MB in the beginning and 125.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-21 05:10:21,620 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 54 locations, 27 error locations. Started 1 CEGAR loops. OverallTime: 8.6s, OverallIterations: 23, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 738 SdHoareTripleChecker+Valid, 5.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 660 mSDsluCounter, 222 SdHoareTripleChecker+Invalid, 4.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 148 mSDsCounter, 856 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3126 IncrementalHoareTripleChecker+Invalid, 3982 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 856 mSolverCounterUnsat, 126 mSDtfsCounter, 3126 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1248 GetRequests, 1061 SyntacticMatches, 33 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10867 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 834 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 16 PerfectInterpolantSequences, 3/18 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 548]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L546] CALL, EXPR build_nondet_String() [L515] int length = __VERIFIER_nondet_int(); [L516] COND TRUE length < 1 [L517] length = 1 [L519] char* nondetString = (char*) malloc(length * sizeof(char)); [L521] int i = 0; VAL [i=0, length=1, nondetString={-1:0}] [L521] COND FALSE !(i < length - 1) VAL [i=0, length=1, nondetString={-1:0}] [L527] nondetString[length-1] = '\0' [L528] return nondetString; [L546] RET, EXPR build_nondet_String() [L546] char* s1 = build_nondet_String(); [L547] CALL, EXPR build_nondet_String() [L515] int length = __VERIFIER_nondet_int(); [L516] COND FALSE !(length < 1) [L519] char* nondetString = (char*) malloc(length * sizeof(char)); [L521] int i = 0; VAL [i=0, length=1, nondetString={28586:0}] [L521] COND FALSE !(i < length - 1) VAL [i=0, length=1, nondetString={28586:0}] [L527] nondetString[length-1] = '\0' [L528] return nondetString; [L547] RET, EXPR build_nondet_String() [L547] char* s2 = build_nondet_String(); [L548] CALL cstrpbrk(s1,s2) [L532] const char *sc1; [L533] const char *s; [L534] int c; [L535] sc1 = s1 VAL [s1={-1:0}, s1={-1:0}, s2={28586:0}, s2={28586:0}, sc1={-1:0}] [L535] EXPR \read(*sc1) VAL [\read(*sc1)=0, s1={-1:0}, s1={-1:0}, s2={28586:0}, s2={28586:0}, sc1={-1:0}] [L535] COND FALSE !(*sc1 != '\0') [L543] return 0; VAL [\result={0:0}, s1={-1:0}, s1={-1:0}, s2={28586:0}, s2={28586:0}, sc1={-1:0}] [L548] RET cstrpbrk(s1,s2) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62ms. Allocated memory is still 119.5MB. Free memory was 96.5MB in the beginning and 96.4MB in the end (delta: 79.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 504.70ms. Allocated memory is still 119.5MB. Free memory was 78.3MB in the beginning and 86.0MB in the end (delta: -7.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.19ms. Allocated memory is still 119.5MB. Free memory was 86.0MB in the beginning and 83.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.11ms. Allocated memory is still 119.5MB. Free memory was 83.8MB in the beginning and 82.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 637.53ms. Allocated memory is still 119.5MB. Free memory was 82.1MB in the beginning and 64.4MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 8679.08ms. Allocated memory was 119.5MB in the beginning and 182.5MB in the end (delta: 62.9MB). Free memory was 64.0MB in the beginning and 128.9MB in the end (delta: -64.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 55.47ms. Allocated memory is still 182.5MB. Free memory was 128.9MB in the beginning and 125.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-21 05:10:21,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1f576d4-de3f-474d-b2f4-04b9ac808f87/bin/ukojak-vF6T2TMglN/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)