./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 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52292af4-4af2-4abb-a710-7f3d66f70d43/bin/ukojak-fKGseLULKY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52292af4-4af2-4abb-a710-7f3d66f70d43/bin/ukojak-fKGseLULKY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52292af4-4af2-4abb-a710-7f3d66f70d43/bin/ukojak-fKGseLULKY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52292af4-4af2-4abb-a710-7f3d66f70d43/bin/ukojak-fKGseLULKY/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52292af4-4af2-4abb-a710-7f3d66f70d43/bin/ukojak-fKGseLULKY/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52292af4-4af2-4abb-a710-7f3d66f70d43/bin/ukojak-fKGseLULKY --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 5a3019657b4c9b0e8c0aa3e888313d420fe28d28 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-4e77c04 [2021-10-13 04:36:24,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 04:36:24,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 04:36:24,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 04:36:24,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 04:36:24,911 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 04:36:24,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 04:36:24,916 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 04:36:24,918 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 04:36:24,920 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 04:36:24,921 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 04:36:24,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 04:36:24,923 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 04:36:24,925 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 04:36:24,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 04:36:24,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 04:36:24,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 04:36:24,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 04:36:24,932 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 04:36:24,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 04:36:24,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 04:36:24,938 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 04:36:24,939 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 04:36:24,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 04:36:24,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 04:36:24,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 04:36:24,946 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 04:36:24,947 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 04:36:24,947 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 04:36:24,949 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 04:36:24,949 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 04:36:24,950 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 04:36:24,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 04:36:24,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 04:36:24,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 04:36:24,954 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 04:36:24,954 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 04:36:24,955 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 04:36:24,955 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 04:36:24,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 04:36:24,957 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 04:36:24,958 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52292af4-4af2-4abb-a710-7f3d66f70d43/bin/ukojak-fKGseLULKY/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-10-13 04:36:24,981 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 04:36:24,981 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 04:36:24,983 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 04:36:24,983 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 04:36:24,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 04:36:24,984 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 04:36:24,984 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 04:36:24,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 04:36:24,984 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 04:36:24,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 04:36:24,985 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 04:36:24,985 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 04:36:24,986 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 04:36:24,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 04:36:24,986 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 04:36:24,987 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 04:36:24,987 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-13 04:36:24,987 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-13 04:36:24,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 04:36:24,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 04:36:24,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 04:36:24,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 04:36:24,989 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-13 04:36:24,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 04:36:24,989 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_52292af4-4af2-4abb-a710-7f3d66f70d43/bin/ukojak-fKGseLULKY/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52292af4-4af2-4abb-a710-7f3d66f70d43/bin/ukojak-fKGseLULKY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a3019657b4c9b0e8c0aa3e888313d420fe28d28 [2021-10-13 04:36:25,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 04:36:25,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 04:36:25,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 04:36:25,313 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 04:36:25,314 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 04:36:25,315 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52292af4-4af2-4abb-a710-7f3d66f70d43/bin/ukojak-fKGseLULKY/../../sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i [2021-10-13 04:36:25,397 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52292af4-4af2-4abb-a710-7f3d66f70d43/bin/ukojak-fKGseLULKY/data/5f6d79b7c/009d91ce46a84d3594a5c6f842c9a042/FLAG100380147 [2021-10-13 04:36:26,122 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 04:36:26,124 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52292af4-4af2-4abb-a710-7f3d66f70d43/sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i [2021-10-13 04:36:26,154 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52292af4-4af2-4abb-a710-7f3d66f70d43/bin/ukojak-fKGseLULKY/data/5f6d79b7c/009d91ce46a84d3594a5c6f842c9a042/FLAG100380147 [2021-10-13 04:36:26,400 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52292af4-4af2-4abb-a710-7f3d66f70d43/bin/ukojak-fKGseLULKY/data/5f6d79b7c/009d91ce46a84d3594a5c6f842c9a042 [2021-10-13 04:36:26,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 04:36:26,407 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 04:36:26,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 04:36:26,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 04:36:26,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 04:36:26,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:36:26" (1/1) ... [2021-10-13 04:36:26,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13769657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:36:26, skipping insertion in model container [2021-10-13 04:36:26,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:36:26" (1/1) ... [2021-10-13 04:36:26,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 04:36:26,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 04:36:26,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 04:36:26,946 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 04:36:27,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 04:36:27,055 INFO L208 MainTranslator]: Completed translation [2021-10-13 04:36:27,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:36:27 WrapperNode [2021-10-13 04:36:27,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 04:36:27,057 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 04:36:27,057 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 04:36:27,057 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 04:36:27,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:36:27" (1/1) ... [2021-10-13 04:36:27,095 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:36:27" (1/1) ... [2021-10-13 04:36:27,132 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 04:36:27,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 04:36:27,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 04:36:27,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 04:36:27,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:36:27" (1/1) ... [2021-10-13 04:36:27,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:36:27" (1/1) ... [2021-10-13 04:36:27,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:36:27" (1/1) ... [2021-10-13 04:36:27,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:36:27" (1/1) ... [2021-10-13 04:36:27,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:36:27" (1/1) ... [2021-10-13 04:36:27,184 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:36:27" (1/1) ... [2021-10-13 04:36:27,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:36:27" (1/1) ... [2021-10-13 04:36:27,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 04:36:27,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 04:36:27,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 04:36:27,206 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 04:36:27,207 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:36:27" (1/1) ... [2021-10-13 04:36:27,220 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 04:36:27,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52292af4-4af2-4abb-a710-7f3d66f70d43/bin/ukojak-fKGseLULKY/z3 [2021-10-13 04:36:27,252 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52292af4-4af2-4abb-a710-7f3d66f70d43/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-13 04:36:27,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52292af4-4af2-4abb-a710-7f3d66f70d43/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-13 04:36:27,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 04:36:27,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 04:36:27,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 04:36:27,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 04:36:27,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 04:36:27,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 04:36:28,053 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 04:36:28,055 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-13 04:36:28,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:36:28 BoogieIcfgContainer [2021-10-13 04:36:28,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 04:36:28,061 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-13 04:36:28,062 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-13 04:36:28,075 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-13 04:36:28,075 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:36:28" (1/1) ... [2021-10-13 04:36:28,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 04:36:28,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:28,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 54 states and 61 transitions. [2021-10-13 04:36:28,137 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2021-10-13 04:36:28,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 04:36:28,140 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:28,141 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:28,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:28,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:36:28,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:28,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 53 states and 60 transitions. [2021-10-13 04:36:28,375 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2021-10-13 04:36:28,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 04:36:28,375 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:28,376 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:28,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:28,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:36:28,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:28,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 55 states and 64 transitions. [2021-10-13 04:36:28,718 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2021-10-13 04:36:28,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 04:36:28,719 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:28,719 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:28,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:36:28,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:28,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 54 states and 63 transitions. [2021-10-13 04:36:28,756 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2021-10-13 04:36:28,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 04:36:28,757 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:28,757 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:28,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:28,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:36:29,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:29,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 55 states and 65 transitions. [2021-10-13 04:36:29,117 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2021-10-13 04:36:29,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 04:36:29,120 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:29,121 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:29,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:29,254 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:36:29,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:29,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 58 states and 73 transitions. [2021-10-13 04:36:29,841 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 73 transitions. [2021-10-13 04:36:29,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 04:36:29,842 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:29,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:29,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:29,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:36:30,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:30,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 59 states and 76 transitions. [2021-10-13 04:36:30,286 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 76 transitions. [2021-10-13 04:36:30,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 04:36:30,287 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:30,287 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:30,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:30,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:36:30,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:30,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 58 states and 75 transitions. [2021-10-13 04:36:30,367 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 75 transitions. [2021-10-13 04:36:30,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 04:36:30,368 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:30,368 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:30,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:30,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:36:30,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:30,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 60 states and 79 transitions. [2021-10-13 04:36:30,694 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 79 transitions. [2021-10-13 04:36:30,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 04:36:30,695 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:30,695 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:30,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:30,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:36:30,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:30,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 59 states and 78 transitions. [2021-10-13 04:36:30,764 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 78 transitions. [2021-10-13 04:36:30,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 04:36:30,765 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:30,765 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:30,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:30,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:36:31,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:31,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 61 states and 83 transitions. [2021-10-13 04:36:31,144 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 83 transitions. [2021-10-13 04:36:31,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 04:36:31,147 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:31,148 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:31,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:31,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:36:31,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:31,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 63 states and 87 transitions. [2021-10-13 04:36:31,800 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 87 transitions. [2021-10-13 04:36:31,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 04:36:31,801 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:31,801 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:32,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:36:33,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:33,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 67 states and 96 transitions. [2021-10-13 04:36:33,091 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 96 transitions. [2021-10-13 04:36:33,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 04:36:33,092 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:33,092 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:33,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:33,256 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:36:33,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:33,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 63 states and 85 transitions. [2021-10-13 04:36:33,561 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 85 transitions. [2021-10-13 04:36:33,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 04:36:33,561 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:33,562 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:33,666 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:36:33,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:33,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 60 states and 79 transitions. [2021-10-13 04:36:33,959 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 79 transitions. [2021-10-13 04:36:33,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 04:36:33,960 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:33,960 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:33,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:34,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:36:34,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:34,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 61 states and 79 transitions. [2021-10-13 04:36:34,381 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 79 transitions. [2021-10-13 04:36:34,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 04:36:34,382 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:34,382 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:34,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:34,566 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:36:35,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:35,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 62 states and 82 transitions. [2021-10-13 04:36:35,344 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 82 transitions. [2021-10-13 04:36:35,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 04:36:35,345 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:35,345 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:35,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:36:37,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:37,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 67 states and 93 transitions. [2021-10-13 04:36:37,864 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 93 transitions. [2021-10-13 04:36:37,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 04:36:37,864 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:37,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:37,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:37,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:36:37,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:37,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 66 states and 92 transitions. [2021-10-13 04:36:37,894 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 92 transitions. [2021-10-13 04:36:37,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 04:36:37,895 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:37,895 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:37,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:37,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:36:38,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:38,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 65 states and 91 transitions. [2021-10-13 04:36:38,332 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 91 transitions. [2021-10-13 04:36:38,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 04:36:38,333 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:38,333 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:38,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:38,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:36:39,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:39,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 66 states and 94 transitions. [2021-10-13 04:36:39,125 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 94 transitions. [2021-10-13 04:36:39,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 04:36:39,126 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:39,127 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:39,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:39,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 04:36:40,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:40,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 68 states and 98 transitions. [2021-10-13 04:36:40,179 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 98 transitions. [2021-10-13 04:36:40,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 04:36:40,179 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:40,180 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:40,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:40,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:36:41,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:41,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 72 states and 106 transitions. [2021-10-13 04:36:41,428 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 106 transitions. [2021-10-13 04:36:41,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 04:36:41,429 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:41,430 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:41,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:41,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:36:43,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:43,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 76 states and 116 transitions. [2021-10-13 04:36:43,248 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 116 transitions. [2021-10-13 04:36:43,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 04:36:43,249 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:43,250 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:43,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:43,376 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:36:43,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:43,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 70 states and 99 transitions. [2021-10-13 04:36:43,799 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 99 transitions. [2021-10-13 04:36:43,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 04:36:43,799 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:43,799 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:43,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:44,298 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:36:44,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:44,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 67 states and 93 transitions. [2021-10-13 04:36:44,935 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 93 transitions. [2021-10-13 04:36:44,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 04:36:44,936 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:44,936 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:44,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:44,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 04:36:45,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:45,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 68 states and 95 transitions. [2021-10-13 04:36:45,874 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 95 transitions. [2021-10-13 04:36:45,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 04:36:45,874 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:45,875 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:45,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:36:45,887 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 04:36:45,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:36:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:36:45,946 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 04:36:45,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:36:46,012 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 27 iterations. [2021-10-13 04:36:46,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.10 04:36:46 ImpRootNode [2021-10-13 04:36:46,061 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-13 04:36:46,062 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 04:36:46,065 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 04:36:46,066 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 04:36:46,066 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:36:28" (3/4) ... [2021-10-13 04:36:46,068 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 04:36:46,142 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52292af4-4af2-4abb-a710-7f3d66f70d43/bin/ukojak-fKGseLULKY/witness.graphml [2021-10-13 04:36:46,143 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 04:36:46,145 INFO L168 Benchmark]: Toolchain (without parser) took 19738.65 ms. Allocated memory was 140.5 MB in the beginning and 281.0 MB in the end (delta: 140.5 MB). Free memory was 110.5 MB in the beginning and 198.4 MB in the end (delta: -87.9 MB). Peak memory consumption was 52.0 MB. Max. memory is 16.1 GB. [2021-10-13 04:36:46,145 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 140.5 MB. Free memory was 95.6 MB in the beginning and 95.6 MB in the end (delta: 67.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:36:46,146 INFO L168 Benchmark]: CACSL2BoogieTranslator took 634.13 ms. Allocated memory is still 140.5 MB. Free memory was 110.3 MB in the beginning and 108.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 04:36:46,147 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.69 ms. Allocated memory is still 140.5 MB. Free memory was 108.8 MB in the beginning and 106.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 04:36:46,148 INFO L168 Benchmark]: Boogie Preprocessor took 71.13 ms. Allocated memory is still 140.5 MB. Free memory was 106.8 MB in the beginning and 105.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 04:36:46,149 INFO L168 Benchmark]: RCFGBuilder took 854.91 ms. Allocated memory is still 140.5 MB. Free memory was 105.4 MB in the beginning and 83.3 MB in the end (delta: 22.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-13 04:36:46,150 INFO L168 Benchmark]: CodeCheck took 18000.51 ms. Allocated memory was 140.5 MB in the beginning and 281.0 MB in the end (delta: 140.5 MB). Free memory was 83.3 MB in the beginning and 201.6 MB in the end (delta: -118.3 MB). Peak memory consumption was 24.0 MB. Max. memory is 16.1 GB. [2021-10-13 04:36:46,150 INFO L168 Benchmark]: Witness Printer took 80.97 ms. Allocated memory is still 281.0 MB. Free memory was 201.6 MB in the beginning and 198.4 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 04:36:46,155 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: 17907.0ms, OverallIterations: 27, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 138414688 SDtfs, 195719280 SDslu, 86247424 SDs, 0 SdLazy, 932962636 SolverSat, 314671532 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7749.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1581 GetRequests, 1278 SyntacticMatches, 57 SemanticMatches, 246 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29940 ImplicationChecksByTransitivity, 15222.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 69.0ms SsaConstructionTime, 323.4ms SatisfiabilityAnalysisTime, 3610.9ms 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, 0.0ms 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 0.53 ms. Allocated memory is still 140.5 MB. Free memory was 95.6 MB in the beginning and 95.6 MB in the end (delta: 67.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 634.13 ms. Allocated memory is still 140.5 MB. Free memory was 110.3 MB in the beginning and 108.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.69 ms. Allocated memory is still 140.5 MB. Free memory was 108.8 MB in the beginning and 106.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 71.13 ms. Allocated memory is still 140.5 MB. Free memory was 106.8 MB in the beginning and 105.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 854.91 ms. Allocated memory is still 140.5 MB. Free memory was 105.4 MB in the beginning and 83.3 MB in the end (delta: 22.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * CodeCheck took 18000.51 ms. Allocated memory was 140.5 MB in the beginning and 281.0 MB in the end (delta: 140.5 MB). Free memory was 83.3 MB in the beginning and 201.6 MB in the end (delta: -118.3 MB). Peak memory consumption was 24.0 MB. Max. memory is 16.1 GB. * Witness Printer took 80.97 ms. Allocated memory is still 281.0 MB. Free memory was 201.6 MB in the beginning and 198.4 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 04:36:46,205 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52292af4-4af2-4abb-a710-7f3d66f70d43/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request...