./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f215e1-4c60-4baf-816c-455905c0c826/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f215e1-4c60-4baf-816c-455905c0c826/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_07f215e1-4c60-4baf-816c-455905c0c826/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f215e1-4c60-4baf-816c-455905c0c826/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f215e1-4c60-4baf-816c-455905c0c826/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f215e1-4c60-4baf-816c-455905c0c826/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dedd0e691082a54e7ab91bc5c89cd5119d7051d93eccccd50f69369896fe2c2c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:48:57,904 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:48:58,013 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f215e1-4c60-4baf-816c-455905c0c826/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 02:48:58,019 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:48:58,020 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:48:58,054 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:48:58,055 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:48:58,056 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:48:58,057 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:48:58,058 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:48:58,058 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:48:58,059 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:48:58,060 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:48:58,060 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:48:58,061 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:48:58,062 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:48:58,062 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:48:58,063 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:48:58,064 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:48:58,064 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:48:58,065 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:48:58,066 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:48:58,066 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:48:58,067 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:48:58,068 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:48:58,068 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:48:58,069 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:48:58,073 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:48:58,073 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:48:58,074 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:48:58,074 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:48:58,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:48:58,075 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:48:58,076 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_07f215e1-4c60-4baf-816c-455905c0c826/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f215e1-4c60-4baf-816c-455905c0c826/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dedd0e691082a54e7ab91bc5c89cd5119d7051d93eccccd50f69369896fe2c2c [2023-11-19 02:48:58,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:48:58,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:48:58,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:48:58,472 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:48:58,472 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:48:58,475 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f215e1-4c60-4baf-816c-455905c0c826/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i [2023-11-19 02:49:01,736 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:49:02,007 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:49:02,008 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f215e1-4c60-4baf-816c-455905c0c826/sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i [2023-11-19 02:49:02,017 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f215e1-4c60-4baf-816c-455905c0c826/bin/ukojak-verify-G8NBE6pJGL/data/53a4ba298/42fc5dc1664546558708dd5daf8f5109/FLAGfdbf54c34 [2023-11-19 02:49:02,042 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f215e1-4c60-4baf-816c-455905c0c826/bin/ukojak-verify-G8NBE6pJGL/data/53a4ba298/42fc5dc1664546558708dd5daf8f5109 [2023-11-19 02:49:02,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:49:02,052 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:49:02,056 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:49:02,056 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:49:02,062 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:49:02,066 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:49:02" (1/1) ... [2023-11-19 02:49:02,069 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c51728a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:02, skipping insertion in model container [2023-11-19 02:49:02,069 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:49:02" (1/1) ... [2023-11-19 02:49:02,101 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:49:02,294 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f215e1-4c60-4baf-816c-455905c0c826/sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i[825,838] [2023-11-19 02:49:02,313 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:49:02,326 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:49:02,342 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f215e1-4c60-4baf-816c-455905c0c826/sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i[825,838] [2023-11-19 02:49:02,350 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:49:02,370 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:49:02,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:02 WrapperNode [2023-11-19 02:49:02,370 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:49:02,372 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:49:02,372 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:49:02,372 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:49:02,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:02" (1/1) ... [2023-11-19 02:49:02,389 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:02" (1/1) ... [2023-11-19 02:49:02,413 INFO L138 Inliner]: procedures = 16, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 42 [2023-11-19 02:49:02,413 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:49:02,414 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:49:02,415 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:49:02,415 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:49:02,425 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:02" (1/1) ... [2023-11-19 02:49:02,426 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:02" (1/1) ... [2023-11-19 02:49:02,428 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:02" (1/1) ... [2023-11-19 02:49:02,428 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:02" (1/1) ... [2023-11-19 02:49:02,435 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:02" (1/1) ... [2023-11-19 02:49:02,439 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:02" (1/1) ... [2023-11-19 02:49:02,441 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:02" (1/1) ... [2023-11-19 02:49:02,442 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:02" (1/1) ... [2023-11-19 02:49:02,445 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:49:02,446 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:49:02,446 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:49:02,446 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:49:02,447 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:02" (1/1) ... [2023-11-19 02:49:02,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:49:02,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f215e1-4c60-4baf-816c-455905c0c826/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:49:02,485 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f215e1-4c60-4baf-816c-455905c0c826/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:49:02,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f215e1-4c60-4baf-816c-455905c0c826/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:49:02,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:49:02,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:49:02,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 02:49:02,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 02:49:02,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:49:02,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:49:02,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 02:49:02,657 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:49:02,659 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:49:02,817 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:49:02,879 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:49:02,880 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 02:49:02,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:49:02 BoogieIcfgContainer [2023-11-19 02:49:02,885 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:49:02,886 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:49:02,886 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:49:02,909 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:49:02,910 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:49:02" (1/1) ... [2023-11-19 02:49:02,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:49:02,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:49:02,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-11-19 02:49:02,981 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-11-19 02:49:02,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 02:49:02,984 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:49:02,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:49:03,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:49:03,654 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 02:49:03,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:49:03,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2023-11-19 02:49:03,754 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2023-11-19 02:49:03,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 02:49:03,757 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:49:03,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:49:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:49:04,089 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 02:49:04,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:49:04,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2023-11-19 02:49:04,302 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-11-19 02:49:04,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 02:49:04,303 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:49:04,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:49:04,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:49:04,326 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:49:04,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:49:04,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:49:04,394 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:49:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:49:04,420 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2023-11-19 02:49:04,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:49:04 ImpRootNode [2023-11-19 02:49:04,454 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:49:04,455 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:49:04,456 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:49:04,456 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:49:04,457 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:49:02" (3/4) ... [2023-11-19 02:49:04,458 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 02:49:04,511 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f215e1-4c60-4baf-816c-455905c0c826/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 02:49:04,511 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:49:04,512 INFO L158 Benchmark]: Toolchain (without parser) took 2460.09ms. Allocated memory is still 172.0MB. Free memory was 127.2MB in the beginning and 83.2MB in the end (delta: 44.1MB). Peak memory consumption was 46.7MB. Max. memory is 16.1GB. [2023-11-19 02:49:04,513 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 123.7MB. Free memory is still 70.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:49:04,513 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.75ms. Allocated memory is still 172.0MB. Free memory was 126.7MB in the beginning and 116.7MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 02:49:04,514 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.72ms. Allocated memory is still 172.0MB. Free memory was 116.7MB in the beginning and 115.2MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 02:49:04,515 INFO L158 Benchmark]: Boogie Preprocessor took 30.46ms. Allocated memory is still 172.0MB. Free memory was 115.2MB in the beginning and 113.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:49:04,516 INFO L158 Benchmark]: RCFGBuilder took 439.36ms. Allocated memory is still 172.0MB. Free memory was 113.6MB in the beginning and 101.6MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:49:04,516 INFO L158 Benchmark]: CodeCheck took 1568.60ms. Allocated memory is still 172.0MB. Free memory was 101.6MB in the beginning and 86.3MB in the end (delta: 15.3MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2023-11-19 02:49:04,517 INFO L158 Benchmark]: Witness Printer took 55.97ms. Allocated memory is still 172.0MB. Free memory was 86.3MB in the beginning and 83.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 02:49:04,520 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, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 2 mSDtfsCounter, 39 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 53 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 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: 16]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L23] Char *tmp; [L40] Char pathbuf[1 +1]; [L42] Char *bound = pathbuf + sizeof(pathbuf) - 1; [L44] tmp = pathbuf + sizeof(pathbuf)/sizeof(*pathbuf) - 1 [L46] CALL glob2 (pathbuf, bound) [L27] Char *p; [L29] p = pathbuf VAL [p={29829:0}, pathbuf={29829:0}, pathbuf={29829:0}, pathlim={29829:28}, pathlim={29829:28}, tmp={29829:4}] [L29] COND TRUE p <= pathlim [L31] CALL __VERIFIER_assert(p<=tmp) [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, tmp={29829:4}] [L31] RET __VERIFIER_assert(p<=tmp) [L32] *p = 1 [L29] p++ VAL [p={29829:4}, pathbuf={29829:0}, pathbuf={29829:0}, pathlim={29829:28}, pathlim={29829:28}, tmp={29829:4}] [L29] COND TRUE p <= pathlim [L31] CALL __VERIFIER_assert(p<=tmp) [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, tmp={29829:4}] [L31] RET __VERIFIER_assert(p<=tmp) [L32] *p = 1 [L29] p++ VAL [p={29829:8}, pathbuf={29829:0}, pathbuf={29829:0}, pathlim={29829:28}, pathlim={29829:28}, tmp={29829:4}] [L29] COND TRUE p <= pathlim [L31] CALL __VERIFIER_assert(p<=tmp) [L15] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, tmp={29829:4}] [L16] reach_error() VAL [\old(cond)=0, cond=0, tmp={29829:4}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 123.7MB. Free memory is still 70.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 314.75ms. Allocated memory is still 172.0MB. Free memory was 126.7MB in the beginning and 116.7MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.72ms. Allocated memory is still 172.0MB. Free memory was 116.7MB in the beginning and 115.2MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.46ms. Allocated memory is still 172.0MB. Free memory was 115.2MB in the beginning and 113.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 439.36ms. Allocated memory is still 172.0MB. Free memory was 113.6MB in the beginning and 101.6MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1568.60ms. Allocated memory is still 172.0MB. Free memory was 101.6MB in the beginning and 86.3MB in the end (delta: 15.3MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * Witness Printer took 55.97ms. Allocated memory is still 172.0MB. Free memory was 86.3MB in the beginning and 83.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 02:49:04,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f215e1-4c60-4baf-816c-455905c0c826/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