./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 cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396d8f50-8aae-4bbf-b33f-10b41078d6c6/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396d8f50-8aae-4bbf-b33f-10b41078d6c6/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396d8f50-8aae-4bbf-b33f-10b41078d6c6/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396d8f50-8aae-4bbf-b33f-10b41078d6c6/bin/ukojak-verify-0OAaufAVZV/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396d8f50-8aae-4bbf-b33f-10b41078d6c6/bin/ukojak-verify-0OAaufAVZV/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396d8f50-8aae-4bbf-b33f-10b41078d6c6/bin/ukojak-verify-0OAaufAVZV --witnessprinter.witness.filename witness --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 0.2.3-dev-cf1a783 [2023-11-11 23:43:11,162 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:43:11,236 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396d8f50-8aae-4bbf-b33f-10b41078d6c6/bin/ukojak-verify-0OAaufAVZV/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-11-11 23:43:11,241 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:43:11,241 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:43:11,267 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:43:11,269 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:43:11,269 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:43:11,270 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:43:11,271 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-11 23:43:11,271 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:43:11,272 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-11 23:43:11,272 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:43:11,273 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-11 23:43:11,273 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-11 23:43:11,274 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-11 23:43:11,275 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:43:11,275 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-11 23:43:11,276 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-11 23:43:11,276 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:43:11,277 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:43:11,283 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:43:11,284 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:43:11,284 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:43:11,285 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:43:11,285 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:43:11,286 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:43:11,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:43:11,286 INFO L153 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_396d8f50-8aae-4bbf-b33f-10b41078d6c6/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396d8f50-8aae-4bbf-b33f-10b41078d6c6/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce305d75684696e5fabb4c8d08830bbd90a67b7669f979309850a29850c4f917 [2023-11-11 23:43:11,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:43:11,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:43:11,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:43:11,684 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:43:11,684 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:43:11,686 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396d8f50-8aae-4bbf-b33f-10b41078d6c6/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i [2023-11-11 23:43:15,016 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:43:15,353 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:43:15,354 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396d8f50-8aae-4bbf-b33f-10b41078d6c6/sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i [2023-11-11 23:43:15,379 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396d8f50-8aae-4bbf-b33f-10b41078d6c6/bin/ukojak-verify-0OAaufAVZV/data/32c34d720/533f764ea8004d3aafea5e85b7420f9c/FLAG64a73ffc7 [2023-11-11 23:43:15,396 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396d8f50-8aae-4bbf-b33f-10b41078d6c6/bin/ukojak-verify-0OAaufAVZV/data/32c34d720/533f764ea8004d3aafea5e85b7420f9c [2023-11-11 23:43:15,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:43:15,400 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:43:15,401 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:43:15,401 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:43:15,406 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:43:15,407 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:43:15" (1/1) ... [2023-11-11 23:43:15,408 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b06f045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:15, skipping insertion in model container [2023-11-11 23:43:15,408 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:43:15" (1/1) ... [2023-11-11 23:43:15,453 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:43:15,847 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:43:15,858 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:43:15,925 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:43:15,957 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:43:15,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:15 WrapperNode [2023-11-11 23:43:15,958 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:43:15,959 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:43:15,959 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:43:15,959 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:43:15,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:15" (1/1) ... [2023-11-11 23:43:15,980 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:15" (1/1) ... [2023-11-11 23:43:16,006 INFO L138 Inliner]: procedures = 118, calls = 16, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 121 [2023-11-11 23:43:16,007 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:43:16,007 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:43:16,008 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:43:16,008 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:43:16,017 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:15" (1/1) ... [2023-11-11 23:43:16,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:15" (1/1) ... [2023-11-11 23:43:16,022 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:15" (1/1) ... [2023-11-11 23:43:16,022 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:15" (1/1) ... [2023-11-11 23:43:16,029 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:15" (1/1) ... [2023-11-11 23:43:16,033 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:15" (1/1) ... [2023-11-11 23:43:16,035 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:15" (1/1) ... [2023-11-11 23:43:16,036 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:15" (1/1) ... [2023-11-11 23:43:16,039 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:43:16,040 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:43:16,040 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:43:16,040 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:43:16,041 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:15" (1/1) ... [2023-11-11 23:43:16,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:43:16,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396d8f50-8aae-4bbf-b33f-10b41078d6c6/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:43:16,072 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396d8f50-8aae-4bbf-b33f-10b41078d6c6/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:43:16,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396d8f50-8aae-4bbf-b33f-10b41078d6c6/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:43:16,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-11 23:43:16,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-11 23:43:16,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-11 23:43:16,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-11 23:43:16,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:43:16,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:43:16,239 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:43:16,242 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:43:16,629 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:43:16,753 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:43:16,753 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-11 23:43:16,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:43:16 BoogieIcfgContainer [2023-11-11 23:43:16,756 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:43:16,757 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:43:16,757 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:43:16,771 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:43:16,771 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:43:16" (1/1) ... [2023-11-11 23:43:16,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:43:16,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:16,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 54 states and 61 transitions. [2023-11-11 23:43:16,864 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2023-11-11 23:43:16,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-11 23:43:16,867 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:16,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:16,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:17,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:17,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:17,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 53 states and 60 transitions. [2023-11-11 23:43:17,172 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2023-11-11 23:43:17,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-11 23:43:17,173 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:17,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:17,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:17,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:17,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 55 states and 64 transitions. [2023-11-11 23:43:17,926 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2023-11-11 23:43:17,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-11 23:43:17,928 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:17,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:17,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:18,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:18,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:18,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 54 states and 63 transitions. [2023-11-11 23:43:18,043 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2023-11-11 23:43:18,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-11 23:43:18,044 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:18,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:18,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:18,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:18,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:18,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 55 states and 65 transitions. [2023-11-11 23:43:18,872 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2023-11-11 23:43:18,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-11 23:43:18,876 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:18,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:19,285 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:20,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:20,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 58 states and 72 transitions. [2023-11-11 23:43:20,449 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 72 transitions. [2023-11-11 23:43:20,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-11 23:43:20,450 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:20,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:20,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:21,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:21,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 59 states and 75 transitions. [2023-11-11 23:43:21,870 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 75 transitions. [2023-11-11 23:43:21,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-11 23:43:21,871 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:21,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:21,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:21,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:21,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:21,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 58 states and 74 transitions. [2023-11-11 23:43:21,948 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 74 transitions. [2023-11-11 23:43:21,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-11 23:43:21,948 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:21,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:21,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:22,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:22,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:22,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 60 states and 78 transitions. [2023-11-11 23:43:22,125 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 78 transitions. [2023-11-11 23:43:22,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-11 23:43:22,125 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:22,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:22,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:22,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:22,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:22,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 59 states and 77 transitions. [2023-11-11 23:43:22,192 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 77 transitions. [2023-11-11 23:43:22,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-11 23:43:22,193 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:22,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:22,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:22,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:23,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:23,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 60 states and 79 transitions. [2023-11-11 23:43:23,215 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 79 transitions. [2023-11-11 23:43:23,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-11 23:43:23,216 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:23,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:23,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:23,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:24,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:24,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 62 states and 83 transitions. [2023-11-11 23:43:24,225 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 83 transitions. [2023-11-11 23:43:24,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-11 23:43:24,225 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:24,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:24,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:24,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:25,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:25,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 65 states and 91 transitions. [2023-11-11 23:43:25,851 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 91 transitions. [2023-11-11 23:43:25,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-11 23:43:25,852 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:25,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:25,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:26,348 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:27,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:27,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 61 states and 81 transitions. [2023-11-11 23:43:27,182 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 81 transitions. [2023-11-11 23:43:27,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-11 23:43:27,183 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:27,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:27,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:27,795 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:28,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:28,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 57 states and 73 transitions. [2023-11-11 23:43:28,812 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 73 transitions. [2023-11-11 23:43:28,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-11 23:43:28,812 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:28,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:28,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:29,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:30,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:30,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 60 states and 80 transitions. [2023-11-11 23:43:30,548 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 80 transitions. [2023-11-11 23:43:30,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-11 23:43:30,548 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:30,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:30,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:31,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:32,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:32,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 61 states and 85 transitions. [2023-11-11 23:43:32,861 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 85 transitions. [2023-11-11 23:43:32,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-11 23:43:32,862 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:32,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:32,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:32,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-11 23:43:33,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:33,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 62 states and 89 transitions. [2023-11-11 23:43:33,841 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 89 transitions. [2023-11-11 23:43:33,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-11 23:43:33,843 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:33,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:33,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:34,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:35,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:35,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 63 states and 92 transitions. [2023-11-11 23:43:35,030 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 92 transitions. [2023-11-11 23:43:35,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-11 23:43:35,031 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:35,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:35,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:35,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:35,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 62 states and 91 transitions. [2023-11-11 23:43:35,077 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 91 transitions. [2023-11-11 23:43:35,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-11 23:43:35,078 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:35,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:35,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:35,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:35,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:35,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 64 states and 94 transitions. [2023-11-11 23:43:35,699 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 94 transitions. [2023-11-11 23:43:35,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-11 23:43:35,699 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:35,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:35,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:36,317 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:37,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:37,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 60 states and 82 transitions. [2023-11-11 23:43:37,302 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 82 transitions. [2023-11-11 23:43:37,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-11 23:43:37,303 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:37,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:37,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:38,074 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:39,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:39,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 57 states and 73 transitions. [2023-11-11 23:43:39,367 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 73 transitions. [2023-11-11 23:43:39,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-11 23:43:39,368 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:39,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:39,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:39,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:40,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:40,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 61 states and 80 transitions. [2023-11-11 23:43:40,705 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 80 transitions. [2023-11-11 23:43:40,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-11 23:43:40,706 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:40,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:40,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:41,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:42,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:42,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 65 states and 88 transitions. [2023-11-11 23:43:42,688 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 88 transitions. [2023-11-11 23:43:42,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-11 23:43:42,689 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:42,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:42,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:43,209 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-11 23:43:44,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:44,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 64 states and 84 transitions. [2023-11-11 23:43:44,609 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 84 transitions. [2023-11-11 23:43:44,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-11 23:43:44,609 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:44,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:44,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:44,685 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-11 23:43:45,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:45,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 62 states and 80 transitions. [2023-11-11 23:43:45,367 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 80 transitions. [2023-11-11 23:43:45,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-11 23:43:45,368 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:45,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-11 23:43:45,397 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-11 23:43:45,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-11 23:43:45,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-11 23:43:45,474 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-11 23:43:45,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-11 23:43:45,550 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 27 iterations. [2023-11-11 23:43:45,589 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-11 23:43:45,591 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-11 23:43:45,593 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated [2023-11-11 23:43:45,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 11.11 11:43:45 ImpRootNode [2023-11-11 23:43:45,598 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-11 23:43:45,598 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-11 23:43:45,598 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-11 23:43:45,598 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-11 23:43:45,599 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:43:16" (3/4) ... [2023-11-11 23:43:45,600 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-11 23:43:45,613 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-11 23:43:45,613 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-11 23:43:45,614 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated [2023-11-11 23:43:45,656 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396d8f50-8aae-4bbf-b33f-10b41078d6c6/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-11 23:43:45,656 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-11 23:43:45,657 INFO L158 Benchmark]: Toolchain (without parser) took 30257.15ms. Allocated memory was 127.9MB in the beginning and 255.9MB in the end (delta: 127.9MB). Free memory was 82.5MB in the beginning and 149.5MB in the end (delta: -67.1MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. [2023-11-11 23:43:45,658 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 127.9MB. Free memory was 100.6MB in the beginning and 100.4MB in the end (delta: 188.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:43:45,658 INFO L158 Benchmark]: CACSL2BoogieTranslator took 556.99ms. Allocated memory is still 127.9MB. Free memory was 82.5MB in the beginning and 66.2MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-11 23:43:45,659 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.90ms. Allocated memory is still 127.9MB. Free memory was 66.2MB in the beginning and 64.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:43:45,659 INFO L158 Benchmark]: Boogie Preprocessor took 32.07ms. Allocated memory is still 127.9MB. Free memory was 64.1MB in the beginning and 62.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:43:45,660 INFO L158 Benchmark]: RCFGBuilder took 716.12ms. Allocated memory was 127.9MB in the beginning and 176.2MB in the end (delta: 48.2MB). Free memory was 62.4MB in the beginning and 136.7MB in the end (delta: -74.3MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2023-11-11 23:43:45,660 INFO L158 Benchmark]: CodeCheck took 28840.70ms. Allocated memory was 176.2MB in the beginning and 255.9MB in the end (delta: 79.7MB). Free memory was 136.7MB in the beginning and 151.6MB in the end (delta: -14.9MB). Peak memory consumption was 63.6MB. Max. memory is 16.1GB. [2023-11-11 23:43:45,661 INFO L158 Benchmark]: Witness Printer took 58.38ms. Allocated memory is still 255.9MB. Free memory was 151.6MB in the beginning and 149.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:43:45,663 INFO L338 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: 28.7s, OverallIterations: 27, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 937 SdHoareTripleChecker+Valid, 11.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 835 mSDsluCounter, 288 SdHoareTripleChecker+Invalid, 9.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 136 mSDsCounter, 1329 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4558 IncrementalHoareTripleChecker+Invalid, 5887 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1329 mSolverCounterUnsat, 152 mSDtfsCounter, 4558 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1653 GetRequests, 1365 SyntacticMatches, 42 SemanticMatches, 246 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30572 ImplicationChecksByTransitivity, 23.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 8.0s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 144 ConstructedInterpolants, 0 QuantifiedInterpolants, 1947 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 18 PerfectInterpolantSequences, 12/36 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: -1]: 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) [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={3506:0}] [L521] COND FALSE !(i < length - 1) [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={3506:0}, s2={3506:0}, sc1={-1:0}] [L535] EXPR \read(*sc1) VAL [s1={-1:0}, s1={-1:0}, s2={3506:0}, s2={3506:0}, sc1={-1:0}] [L535] COND FALSE !(*sc1 != '\0') [L543] return 0; VAL [\result={0:0}, s1={-1:0}, s1={-1:0}, s2={3506:0}, s2={3506:0}, sc1={-1:0}] [L548] RET cstrpbrk(s1,s2) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 127.9MB. Free memory was 100.6MB in the beginning and 100.4MB in the end (delta: 188.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 556.99ms. Allocated memory is still 127.9MB. Free memory was 82.5MB in the beginning and 66.2MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.90ms. Allocated memory is still 127.9MB. Free memory was 66.2MB in the beginning and 64.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.07ms. Allocated memory is still 127.9MB. Free memory was 64.1MB in the beginning and 62.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 716.12ms. Allocated memory was 127.9MB in the beginning and 176.2MB in the end (delta: 48.2MB). Free memory was 62.4MB in the beginning and 136.7MB in the end (delta: -74.3MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. * CodeCheck took 28840.70ms. Allocated memory was 176.2MB in the beginning and 255.9MB in the end (delta: 79.7MB). Free memory was 136.7MB in the beginning and 151.6MB in the end (delta: -14.9MB). Peak memory consumption was 63.6MB. Max. memory is 16.1GB. * Witness Printer took 58.38ms. Allocated memory is still 255.9MB. Free memory was 151.6MB in the beginning and 149.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate proved your program to be incorrect! [2023-11-11 23:43:45,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396d8f50-8aae-4bbf-b33f-10b41078d6c6/bin/ukojak-verify-0OAaufAVZV/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)