./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/longjmp/68-longjmp_05-heap-counting-return-one-method_true.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/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_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/longjmp/68-longjmp_05-heap-counting-return-one-method_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/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 64bit --witnessprinter.graph.data.programhash 3bd7ad9ac2725fdba1820a91634ef754e4ef2007dcc38a347a85abfe18e1ca58 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:52:45,116 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:52:45,238 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-11-19 02:52:45,247 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:52:45,247 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:52:45,292 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:52:45,293 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:52:45,294 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:52:45,295 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:52:45,300 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:52:45,301 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:52:45,301 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:52:45,302 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:52:45,304 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:52:45,304 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:52:45,304 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:52:45,305 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:52:45,305 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:52:45,306 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:52:45,306 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:52:45,306 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:52:45,307 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:52:45,308 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:52:45,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:52:45,309 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:52:45,309 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:52:45,310 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:52:45,310 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:52:45,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:52:45,311 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:52:45,312 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_2022840f-1bf6-4e7b-8643-3318208c4309/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bd7ad9ac2725fdba1820a91634ef754e4ef2007dcc38a347a85abfe18e1ca58 [2023-11-19 02:52:45,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:52:45,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:52:45,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:52:45,635 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:52:45,635 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:52:45,637 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/longjmp/68-longjmp_05-heap-counting-return-one-method_true.i [2023-11-19 02:52:48,932 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:52:49,202 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:52:49,202 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/sv-benchmarks/c/longjmp/68-longjmp_05-heap-counting-return-one-method_true.i [2023-11-19 02:52:49,219 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/data/59133586d/9a3537ae9642496286832a7efb232232/FLAGa067e9025 [2023-11-19 02:52:49,236 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/data/59133586d/9a3537ae9642496286832a7efb232232 [2023-11-19 02:52:49,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:52:49,241 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:52:49,243 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:52:49,243 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:52:49,248 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:52:49,249 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:52:49" (1/1) ... [2023-11-19 02:52:49,251 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@103f56bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:49, skipping insertion in model container [2023-11-19 02:52:49,251 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:52:49" (1/1) ... [2023-11-19 02:52:49,298 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:52:49,476 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_2022840f-1bf6-4e7b-8643-3318208c4309/sv-benchmarks/c/longjmp/68-longjmp_05-heap-counting-return-one-method_true.i[1105,1118] [2023-11-19 02:52:49,516 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 02:52:49,636 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:52:49,651 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:52:49,668 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_2022840f-1bf6-4e7b-8643-3318208c4309/sv-benchmarks/c/longjmp/68-longjmp_05-heap-counting-return-one-method_true.i[1105,1118] [2023-11-19 02:52:49,693 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 02:52:49,727 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:52:49,762 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:52:49,771 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:52:49,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:49 WrapperNode [2023-11-19 02:52:49,772 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:52:49,773 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:52:49,773 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:52:49,773 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:52:49,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:49" (1/1) ... [2023-11-19 02:52:49,807 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:49" (1/1) ... [2023-11-19 02:52:49,831 INFO L138 Inliner]: procedures = 123, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2023-11-19 02:52:49,832 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:52:49,833 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:52:49,833 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:52:49,833 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:52:49,844 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:49" (1/1) ... [2023-11-19 02:52:49,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:49" (1/1) ... [2023-11-19 02:52:49,857 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:49" (1/1) ... [2023-11-19 02:52:49,857 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:49" (1/1) ... [2023-11-19 02:52:49,871 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:49" (1/1) ... [2023-11-19 02:52:49,875 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:49" (1/1) ... [2023-11-19 02:52:49,881 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:49" (1/1) ... [2023-11-19 02:52:49,882 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:49" (1/1) ... [2023-11-19 02:52:49,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:52:49,887 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:52:49,888 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:52:49,888 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:52:49,890 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:49" (1/1) ... [2023-11-19 02:52:49,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:52:49,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:52:49,937 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:52:49,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:52:49,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 02:52:49,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 02:52:49,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 02:52:49,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:52:49,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:52:49,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:52:49,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:52:50,081 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:52:50,084 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:52:50,208 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:52:50,227 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:52:50,228 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 02:52:50,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:52:50 BoogieIcfgContainer [2023-11-19 02:52:50,233 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:52:50,234 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:52:50,234 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:52:50,246 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:52:50,246 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:52:50" (1/1) ... [2023-11-19 02:52:50,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:52:50,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:52:50,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2023-11-19 02:52:50,321 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2023-11-19 02:52:50,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 02:52:50,324 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:52:50,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:52:50,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:52:50,872 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 02:52:50,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:52:50,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 17 transitions. [2023-11-19 02:52:50,954 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2023-11-19 02:52:50,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 02:52:50,958 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:52:50,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:52:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:52:50,976 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:52:50,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:52:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:52:51,048 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:52:51,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:52:51,068 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-19 02:52:51,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:52:51 ImpRootNode [2023-11-19 02:52:51,098 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:52:51,099 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:52:51,099 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:52:51,099 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:52:51,100 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:52:50" (3/4) ... [2023-11-19 02:52:51,103 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 02:52:51,104 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:52:51,105 INFO L158 Benchmark]: Toolchain (without parser) took 1864.32ms. Allocated memory is still 174.1MB. Free memory was 129.4MB in the beginning and 125.2MB in the end (delta: 4.2MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2023-11-19 02:52:51,106 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory is still 63.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:52:51,107 INFO L158 Benchmark]: CACSL2BoogieTranslator took 529.51ms. Allocated memory is still 174.1MB. Free memory was 129.0MB in the beginning and 112.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 02:52:51,107 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.26ms. Allocated memory is still 174.1MB. Free memory was 112.3MB in the beginning and 110.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:52:51,109 INFO L158 Benchmark]: Boogie Preprocessor took 53.68ms. Allocated memory is still 174.1MB. Free memory was 110.6MB in the beginning and 109.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:52:51,110 INFO L158 Benchmark]: RCFGBuilder took 345.96ms. Allocated memory is still 174.1MB. Free memory was 109.2MB in the beginning and 99.3MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 02:52:51,110 INFO L158 Benchmark]: CodeCheck took 864.36ms. Allocated memory is still 174.1MB. Free memory was 99.3MB in the beginning and 125.8MB in the end (delta: -26.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:52:51,111 INFO L158 Benchmark]: Witness Printer took 5.38ms. Allocated memory is still 174.1MB. Free memory is still 125.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:52:51,123 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 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 5 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 23 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 - UnprovableResult [Line: 561]: Unable to prove that unknown kind of specification holds Unable to prove that unknown kind of specification holds Reason: overapproximation of longjmp at line 561. Possible FailurePath: [L557] jmp_buf* my_jump_buffer = malloc(sizeof(jmp_buf)); [L558] volatile int count = _setjmp (*my_jump_buffer); VAL [count=0, my_jump_buffer={-1:0}] [L559] COND TRUE count < 5 VAL [count=0, my_jump_buffer={-1:0}] [L560] CALL __VERIFIER_assert(count >= 0 && count < 5) VAL [\old(cond)=1] [L19] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L560] RET __VERIFIER_assert(count >= 0 && count < 5) VAL [count=0, my_jump_buffer={-1:0}] [L561] longjmp(*my_jump_buffer, count + 1) VAL [count=0, my_jump_buffer={-1:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory is still 63.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 529.51ms. Allocated memory is still 174.1MB. Free memory was 129.0MB in the beginning and 112.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.26ms. Allocated memory is still 174.1MB. Free memory was 112.3MB in the beginning and 110.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.68ms. Allocated memory is still 174.1MB. Free memory was 110.6MB in the beginning and 109.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 345.96ms. Allocated memory is still 174.1MB. Free memory was 109.2MB in the beginning and 99.3MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 864.36ms. Allocated memory is still 174.1MB. Free memory was 99.3MB in the beginning and 125.8MB in the end (delta: -26.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.38ms. Allocated memory is still 174.1MB. Free memory is still 125.2MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 02:52:51,163 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/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_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/longjmp/68-longjmp_05-heap-counting-return-one-method_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/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 64bit --witnessprinter.graph.data.programhash 3bd7ad9ac2725fdba1820a91634ef754e4ef2007dcc38a347a85abfe18e1ca58 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:52:53,996 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:52:54,129 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-11-19 02:52:54,178 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:52:54,180 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:52:54,180 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:52:54,181 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:52:54,182 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:52:54,183 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:52:54,188 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:52:54,188 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:52:54,189 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:52:54,189 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:52:54,191 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:52:54,191 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 02:52:54,192 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 02:52:54,192 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 02:52:54,192 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:52:54,193 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:52:54,194 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:52:54,195 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:52:54,195 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:52:54,196 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 02:52:54,196 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 02:52:54,196 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:52:54,197 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:52:54,197 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:52:54,198 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:52:54,198 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:52:54,198 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 02:52:54,200 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 02:52:54,200 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:52:54,200 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 02:52:54,201 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 02:52:54,201 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_2022840f-1bf6-4e7b-8643-3318208c4309/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bd7ad9ac2725fdba1820a91634ef754e4ef2007dcc38a347a85abfe18e1ca58 [2023-11-19 02:52:54,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:52:54,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:52:54,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:52:54,696 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:52:54,697 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:52:54,698 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/longjmp/68-longjmp_05-heap-counting-return-one-method_true.i [2023-11-19 02:52:58,090 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:52:58,427 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:52:58,428 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/sv-benchmarks/c/longjmp/68-longjmp_05-heap-counting-return-one-method_true.i [2023-11-19 02:52:58,450 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/data/355225fd6/4445e23d4077421cb4d964e68b6b0544/FLAG88f5a75b9 [2023-11-19 02:52:58,469 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/data/355225fd6/4445e23d4077421cb4d964e68b6b0544 [2023-11-19 02:52:58,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:52:58,476 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:52:58,482 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:52:58,482 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:52:58,487 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:52:58,488 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:52:58" (1/1) ... [2023-11-19 02:52:58,490 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5089a776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:58, skipping insertion in model container [2023-11-19 02:52:58,490 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:52:58" (1/1) ... [2023-11-19 02:52:58,541 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:52:58,760 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_2022840f-1bf6-4e7b-8643-3318208c4309/sv-benchmarks/c/longjmp/68-longjmp_05-heap-counting-return-one-method_true.i[1105,1118] [2023-11-19 02:52:58,830 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 02:52:58,970 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:52:58,986 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:52:59,000 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_2022840f-1bf6-4e7b-8643-3318208c4309/sv-benchmarks/c/longjmp/68-longjmp_05-heap-counting-return-one-method_true.i[1105,1118] [2023-11-19 02:52:59,021 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 02:52:59,048 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:52:59,081 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:52:59,089 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:52:59,090 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:59 WrapperNode [2023-11-19 02:52:59,090 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:52:59,091 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:52:59,092 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:52:59,092 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:52:59,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:59" (1/1) ... [2023-11-19 02:52:59,118 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:59" (1/1) ... [2023-11-19 02:52:59,146 INFO L138 Inliner]: procedures = 124, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2023-11-19 02:52:59,147 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:52:59,148 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:52:59,148 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:52:59,149 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:52:59,160 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:59" (1/1) ... [2023-11-19 02:52:59,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:59" (1/1) ... [2023-11-19 02:52:59,165 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:59" (1/1) ... [2023-11-19 02:52:59,165 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:59" (1/1) ... [2023-11-19 02:52:59,173 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:59" (1/1) ... [2023-11-19 02:52:59,177 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:59" (1/1) ... [2023-11-19 02:52:59,216 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:59" (1/1) ... [2023-11-19 02:52:59,217 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:59" (1/1) ... [2023-11-19 02:52:59,220 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:52:59,221 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:52:59,222 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:52:59,222 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:52:59,223 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:52:59" (1/1) ... [2023-11-19 02:52:59,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:52:59,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:52:59,289 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:52:59,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:52:59,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 02:52:59,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 02:52:59,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 02:52:59,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:52:59,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 02:52:59,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:52:59,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:52:59,427 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:52:59,429 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:52:59,563 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:52:59,585 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:52:59,585 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 02:52:59,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:52:59 BoogieIcfgContainer [2023-11-19 02:52:59,590 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:52:59,591 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:52:59,591 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:52:59,601 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:52:59,602 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:52:59" (1/1) ... [2023-11-19 02:52:59,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:52:59,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:52:59,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2023-11-19 02:52:59,669 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2023-11-19 02:52:59,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 02:52:59,671 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:52:59,672 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:52:59,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:52:59,676 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:52:59,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 02:52:59,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:52:59,778 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:52:59,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:52:59,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 02:52:59,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:52:59,906 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 02:52:59,909 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:52:59,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-19 02:53:00,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:53:00,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 18 transitions. [2023-11-19 02:53:00,013 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-11-19 02:53:00,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 02:53:00,016 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:53:00,017 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:53:00,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:53:00,018 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:53:00,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-19 02:53:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:53:00,122 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:53:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:53:00,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:53:00,182 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:53:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:53:00,201 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:53:00,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-19 02:53:00,208 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-19 02:53:00,229 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:53:00 ImpRootNode [2023-11-19 02:53:00,229 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:53:00,230 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:53:00,230 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:53:00,231 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:53:00,231 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:52:59" (3/4) ... [2023-11-19 02:53:00,234 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 02:53:00,235 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:53:00,236 INFO L158 Benchmark]: Toolchain (without parser) took 1759.69ms. Allocated memory was 88.1MB in the beginning and 132.1MB in the end (delta: 44.0MB). Free memory was 63.1MB in the beginning and 78.5MB in the end (delta: -15.4MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. [2023-11-19 02:53:00,237 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 88.1MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:53:00,238 INFO L158 Benchmark]: CACSL2BoogieTranslator took 608.96ms. Allocated memory is still 88.1MB. Free memory was 62.9MB in the beginning and 44.9MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 02:53:00,238 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.01ms. Allocated memory is still 88.1MB. Free memory was 44.9MB in the beginning and 42.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:53:00,239 INFO L158 Benchmark]: Boogie Preprocessor took 72.38ms. Allocated memory was 88.1MB in the beginning and 132.1MB in the end (delta: 44.0MB). Free memory was 42.9MB in the beginning and 111.0MB in the end (delta: -68.1MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2023-11-19 02:53:00,240 INFO L158 Benchmark]: RCFGBuilder took 368.55ms. Allocated memory is still 132.1MB. Free memory was 111.0MB in the beginning and 100.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:53:00,241 INFO L158 Benchmark]: CodeCheck took 638.89ms. Allocated memory is still 132.1MB. Free memory was 100.0MB in the beginning and 78.5MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 02:53:00,241 INFO L158 Benchmark]: Witness Printer took 5.06ms. Allocated memory is still 132.1MB. Free memory is still 78.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:53:00,245 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 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 5 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 1 NumberOfNonLiveVariables, 27 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 - UnprovableResult [Line: 561]: Unable to prove that unknown kind of specification holds Unable to prove that unknown kind of specification holds Reason: overapproximation of longjmp at line 561. Possible FailurePath: [L557] jmp_buf* my_jump_buffer = malloc(sizeof(jmp_buf)); [L558] volatile int count = _setjmp (*my_jump_buffer); VAL [count=0, my_jump_buffer={4:0}] [L559] COND TRUE count < 5 VAL [count=0, my_jump_buffer={4:0}] [L560] CALL __VERIFIER_assert(count >= 0 && count < 5) VAL [\old(cond)=1] [L19] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L560] RET __VERIFIER_assert(count >= 0 && count < 5) VAL [count=0, my_jump_buffer={4:0}] [L561] longjmp(*my_jump_buffer, count + 1) VAL [count=0, my_jump_buffer={4:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64ms. Allocated memory is still 88.1MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 608.96ms. Allocated memory is still 88.1MB. Free memory was 62.9MB in the beginning and 44.9MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.01ms. Allocated memory is still 88.1MB. Free memory was 44.9MB in the beginning and 42.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.38ms. Allocated memory was 88.1MB in the beginning and 132.1MB in the end (delta: 44.0MB). Free memory was 42.9MB in the beginning and 111.0MB in the end (delta: -68.1MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * RCFGBuilder took 368.55ms. Allocated memory is still 132.1MB. Free memory was 111.0MB in the beginning and 100.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 638.89ms. Allocated memory is still 132.1MB. Free memory was 100.0MB in the beginning and 78.5MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 5.06ms. Allocated memory is still 132.1MB. Free memory is still 78.5MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 02:53:00,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022840f-1bf6-4e7b-8643-3318208c4309/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 Result: UNKNOWN: Overapproximated counterexample