./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 9bd2c7ff 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_35e627dc-b6b8-475e-929b-9fc10bbb1f0a/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e627dc-b6b8-475e-929b-9fc10bbb1f0a/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e627dc-b6b8-475e-929b-9fc10bbb1f0a/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e627dc-b6b8-475e-929b-9fc10bbb1f0a/bin/ukojak-verify-G8NBE6pJGL/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e627dc-b6b8-475e-929b-9fc10bbb1f0a/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e627dc-b6b8-475e-929b-9fc10bbb1f0a/bin/ukojak-verify-G8NBE6pJGL --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-9bd2c7f [2023-11-19 04:08:24,664 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:08:24,734 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e627dc-b6b8-475e-929b-9fc10bbb1f0a/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-11-19 04:08:24,750 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:08:24,754 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 04:08:24,794 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:08:24,796 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:08:24,796 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:08:24,797 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:08:24,802 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:08:24,803 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:08:24,804 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:08:24,804 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:08:24,806 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:08:24,806 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:08:24,806 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 04:08:24,807 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:08:24,807 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:08:24,808 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:08:24,808 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:08:24,809 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:08:24,809 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:08:24,810 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:08:24,811 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:08:24,811 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:08:24,811 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:08:24,812 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:08:24,812 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 04:08:24,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:08:24,813 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_35e627dc-b6b8-475e-929b-9fc10bbb1f0a/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e627dc-b6b8-475e-929b-9fc10bbb1f0a/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce305d75684696e5fabb4c8d08830bbd90a67b7669f979309850a29850c4f917 [2023-11-19 04:08:25,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:08:25,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:08:25,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:08:25,145 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:08:25,145 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:08:25,147 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e627dc-b6b8-475e-929b-9fc10bbb1f0a/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i [2023-11-19 04:08:28,341 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:08:28,626 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:08:28,627 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e627dc-b6b8-475e-929b-9fc10bbb1f0a/sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i [2023-11-19 04:08:28,647 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e627dc-b6b8-475e-929b-9fc10bbb1f0a/bin/ukojak-verify-G8NBE6pJGL/data/5f0494216/39ce3cd050c844aaaa8c850e4ed56ce9/FLAGdeda40185 [2023-11-19 04:08:28,675 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e627dc-b6b8-475e-929b-9fc10bbb1f0a/bin/ukojak-verify-G8NBE6pJGL/data/5f0494216/39ce3cd050c844aaaa8c850e4ed56ce9 [2023-11-19 04:08:28,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:08:28,680 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:08:28,681 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:08:28,681 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:08:28,687 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:08:28,688 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:08:28" (1/1) ... [2023-11-19 04:08:28,689 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f587ebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:28, skipping insertion in model container [2023-11-19 04:08:28,689 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:08:28" (1/1) ... [2023-11-19 04:08:28,760 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:08:29,196 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:08:29,206 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:08:29,245 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:08:29,279 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:08:29,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:29 WrapperNode [2023-11-19 04:08:29,280 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:08:29,281 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:08:29,281 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:08:29,282 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:08:29,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:29" (1/1) ... [2023-11-19 04:08:29,315 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:29" (1/1) ... [2023-11-19 04:08:29,356 INFO L138 Inliner]: procedures = 118, calls = 16, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 121 [2023-11-19 04:08:29,356 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:08:29,357 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:08:29,361 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:08:29,361 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:08:29,372 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:29" (1/1) ... [2023-11-19 04:08:29,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:29" (1/1) ... [2023-11-19 04:08:29,377 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:29" (1/1) ... [2023-11-19 04:08:29,377 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:29" (1/1) ... [2023-11-19 04:08:29,386 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:29" (1/1) ... [2023-11-19 04:08:29,390 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:29" (1/1) ... [2023-11-19 04:08:29,393 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:29" (1/1) ... [2023-11-19 04:08:29,395 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:29" (1/1) ... [2023-11-19 04:08:29,399 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:08:29,400 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:08:29,400 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:08:29,401 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:08:29,416 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:29" (1/1) ... [2023-11-19 04:08:29,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:08:29,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e627dc-b6b8-475e-929b-9fc10bbb1f0a/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:08:29,458 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e627dc-b6b8-475e-929b-9fc10bbb1f0a/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:08:29,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e627dc-b6b8-475e-929b-9fc10bbb1f0a/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:08:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:08:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:08:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:08:29,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:08:29,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:08:29,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:08:29,637 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:08:29,640 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:08:29,999 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:08:30,193 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:08:30,197 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 04:08:30,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:08:30 BoogieIcfgContainer [2023-11-19 04:08:30,204 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:08:30,205 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:08:30,205 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:08:30,217 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:08:30,218 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:08:30" (1/1) ... [2023-11-19 04:08:30,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:08:30,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:30,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 54 states and 61 transitions. [2023-11-19 04:08:30,307 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2023-11-19 04:08:30,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 04:08:30,310 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:30,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:30,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:30,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:30,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:30,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 53 states and 60 transitions. [2023-11-19 04:08:30,658 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2023-11-19 04:08:30,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 04:08:30,659 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:30,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:31,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:31,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:31,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 55 states and 64 transitions. [2023-11-19 04:08:31,333 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2023-11-19 04:08:31,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 04:08:31,333 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:31,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:31,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:31,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:31,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 54 states and 63 transitions. [2023-11-19 04:08:31,409 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2023-11-19 04:08:31,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 04:08:31,410 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:31,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:31,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:32,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:32,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 55 states and 65 transitions. [2023-11-19 04:08:32,188 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2023-11-19 04:08:32,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 04:08:32,191 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:32,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:32,553 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:33,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:33,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 58 states and 72 transitions. [2023-11-19 04:08:33,766 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 72 transitions. [2023-11-19 04:08:33,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 04:08:33,766 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:33,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:34,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:35,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:35,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 59 states and 75 transitions. [2023-11-19 04:08:35,195 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 75 transitions. [2023-11-19 04:08:35,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 04:08:35,196 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:35,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:35,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:35,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:35,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:35,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 58 states and 74 transitions. [2023-11-19 04:08:35,265 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 74 transitions. [2023-11-19 04:08:35,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 04:08:35,265 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:35,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:35,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:35,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:35,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 60 states and 78 transitions. [2023-11-19 04:08:35,436 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 78 transitions. [2023-11-19 04:08:35,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 04:08:35,437 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:35,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:35,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:35,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:35,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:35,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 59 states and 77 transitions. [2023-11-19 04:08:35,531 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 77 transitions. [2023-11-19 04:08:35,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 04:08:35,532 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:35,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:35,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:35,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:36,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:36,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 60 states and 79 transitions. [2023-11-19 04:08:36,735 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 79 transitions. [2023-11-19 04:08:36,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 04:08:36,738 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:36,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:36,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:37,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:37,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:37,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 62 states and 83 transitions. [2023-11-19 04:08:37,872 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 83 transitions. [2023-11-19 04:08:37,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 04:08:37,873 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:37,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:37,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:38,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:39,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:39,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 65 states and 91 transitions. [2023-11-19 04:08:39,589 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 91 transitions. [2023-11-19 04:08:39,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 04:08:39,589 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:39,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:40,054 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:40,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:40,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 61 states and 81 transitions. [2023-11-19 04:08:40,862 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 81 transitions. [2023-11-19 04:08:40,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 04:08:40,863 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:40,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:40,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:41,439 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:42,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:42,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 57 states and 73 transitions. [2023-11-19 04:08:42,413 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 73 transitions. [2023-11-19 04:08:42,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 04:08:42,414 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:42,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:42,923 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:44,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:44,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 60 states and 80 transitions. [2023-11-19 04:08:44,263 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 80 transitions. [2023-11-19 04:08:44,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 04:08:44,264 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:44,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:44,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:44,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:46,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:46,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 61 states and 85 transitions. [2023-11-19 04:08:46,578 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 85 transitions. [2023-11-19 04:08:46,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 04:08:46,579 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:46,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:46,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:46,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:47,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:47,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 62 states and 88 transitions. [2023-11-19 04:08:47,694 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 88 transitions. [2023-11-19 04:08:47,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 04:08:47,695 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:47,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:47,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 04:08:49,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:49,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 63 states and 91 transitions. [2023-11-19 04:08:49,147 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 91 transitions. [2023-11-19 04:08:49,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 04:08:49,148 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:49,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:49,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:49,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:49,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:49,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 62 states and 90 transitions. [2023-11-19 04:08:49,190 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 90 transitions. [2023-11-19 04:08:49,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 04:08:49,191 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:49,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:49,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:49,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:49,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:49,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 64 states and 93 transitions. [2023-11-19 04:08:49,890 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 93 transitions. [2023-11-19 04:08:49,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 04:08:49,891 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:49,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:49,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:50,567 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:51,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:51,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 60 states and 81 transitions. [2023-11-19 04:08:51,632 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 81 transitions. [2023-11-19 04:08:51,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 04:08:51,633 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:51,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:51,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:52,392 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:53,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:53,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 57 states and 72 transitions. [2023-11-19 04:08:53,496 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 72 transitions. [2023-11-19 04:08:53,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 04:08:53,496 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:53,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:53,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:53,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:54,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:54,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 61 states and 79 transitions. [2023-11-19 04:08:54,890 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 79 transitions. [2023-11-19 04:08:54,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 04:08:54,890 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:54,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:54,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:55,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:57,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:57,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 65 states and 87 transitions. [2023-11-19 04:08:57,112 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 87 transitions. [2023-11-19 04:08:57,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 04:08:57,113 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:57,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:57,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:57,204 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 04:08:57,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:57,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 63 states and 83 transitions. [2023-11-19 04:08:57,864 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 83 transitions. [2023-11-19 04:08:57,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 04:08:57,864 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:57,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:57,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:58,071 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 04:08:58,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:58,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 61 states and 79 transitions. [2023-11-19 04:08:58,826 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 79 transitions. [2023-11-19 04:08:58,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 04:08:58,827 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:58,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:58,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:08:58,862 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:08:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:08:58,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:08:58,981 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:08:59,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:08:59,063 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 27 iterations. [2023-11-19 04:08:59,104 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-19 04:08:59,108 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-19 04:08:59,112 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated [2023-11-19 04:08:59,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 04:08:59 ImpRootNode [2023-11-19 04:08:59,120 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 04:08:59,120 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:08:59,121 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:08:59,121 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:08:59,122 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:08:30" (3/4) ... [2023-11-19 04:08:59,123 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 04:08:59,141 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-19 04:08:59,147 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-19 04:08:59,148 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated [2023-11-19 04:08:59,219 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e627dc-b6b8-475e-929b-9fc10bbb1f0a/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 04:08:59,219 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:08:59,222 INFO L158 Benchmark]: Toolchain (without parser) took 30540.38ms. Allocated memory was 151.0MB in the beginning and 268.4MB in the end (delta: 117.4MB). Free memory was 111.3MB in the beginning and 93.3MB in the end (delta: 18.1MB). Peak memory consumption was 136.9MB. Max. memory is 16.1GB. [2023-11-19 04:08:59,224 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 66.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:08:59,226 INFO L158 Benchmark]: CACSL2BoogieTranslator took 599.26ms. Allocated memory is still 151.0MB. Free memory was 111.3MB in the beginning and 94.9MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 04:08:59,226 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.18ms. Allocated memory is still 151.0MB. Free memory was 94.9MB in the beginning and 92.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:08:59,227 INFO L158 Benchmark]: Boogie Preprocessor took 41.88ms. Allocated memory is still 151.0MB. Free memory was 92.8MB in the beginning and 90.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:08:59,227 INFO L158 Benchmark]: RCFGBuilder took 803.77ms. Allocated memory is still 151.0MB. Free memory was 90.9MB in the beginning and 116.8MB in the end (delta: -25.9MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2023-11-19 04:08:59,230 INFO L158 Benchmark]: CodeCheck took 28915.17ms. Allocated memory was 151.0MB in the beginning and 268.4MB in the end (delta: 117.4MB). Free memory was 116.8MB in the beginning and 95.4MB in the end (delta: 21.5MB). Peak memory consumption was 138.7MB. Max. memory is 16.1GB. [2023-11-19 04:08:59,230 INFO L158 Benchmark]: Witness Printer took 98.83ms. Allocated memory is still 268.4MB. Free memory was 95.4MB in the beginning and 93.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:08:59,233 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: 28.8s, OverallIterations: 27, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 953 SdHoareTripleChecker+Valid, 11.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 851 mSDsluCounter, 288 SdHoareTripleChecker+Invalid, 9.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 136 mSDsCounter, 1327 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4528 IncrementalHoareTripleChecker+Invalid, 5855 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1327 mSolverCounterUnsat, 152 mSDtfsCounter, 4528 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1643 GetRequests, 1360 SyntacticMatches, 43 SemanticMatches, 240 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29071 ImplicationChecksByTransitivity, 23.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.1s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 144 ConstructedInterpolants, 0 QuantifiedInterpolants, 1923 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 TRUE length < 1 [L517] length = 1 [L519] char* nondetString = (char*) malloc(length * sizeof(char)); [L521] int i = 0; VAL [i=0, length=1, nondetString={11660:0}] [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={11660:0}, s2={11660:0}, sc1={-1:0}] [L535] EXPR \read(*sc1) VAL [s1={-1:0}, s1={-1:0}, s2={11660:0}, s2={11660:0}, sc1={-1:0}] [L535] COND FALSE !(*sc1 != '\0') [L543] return 0; VAL [\result={0:0}, s1={-1:0}, s1={-1:0}, s2={11660:0}, s2={11660:0}, sc1={-1:0}] [L548] RET cstrpbrk(s1,s2) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 66.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 599.26ms. Allocated memory is still 151.0MB. Free memory was 111.3MB in the beginning and 94.9MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.18ms. Allocated memory is still 151.0MB. Free memory was 94.9MB in the beginning and 92.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.88ms. Allocated memory is still 151.0MB. Free memory was 92.8MB in the beginning and 90.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 803.77ms. Allocated memory is still 151.0MB. Free memory was 90.9MB in the beginning and 116.8MB in the end (delta: -25.9MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. * CodeCheck took 28915.17ms. Allocated memory was 151.0MB in the beginning and 268.4MB in the end (delta: 117.4MB). Free memory was 116.8MB in the beginning and 95.4MB in the end (delta: 21.5MB). Peak memory consumption was 138.7MB. Max. memory is 16.1GB. * Witness Printer took 98.83ms. Allocated memory is still 268.4MB. Free memory was 95.4MB in the beginning and 93.3MB 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! [2023-11-19 04:08:59,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e627dc-b6b8-475e-929b-9fc10bbb1f0a/bin/ukojak-verify-G8NBE6pJGL/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)