./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/while_infinite_loop_4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_89eab618-4cdb-4cc2-84f2-9da878156ce7/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89eab618-4cdb-4cc2-84f2-9da878156ce7/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89eab618-4cdb-4cc2-84f2-9da878156ce7/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89eab618-4cdb-4cc2-84f2-9da878156ce7/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89eab618-4cdb-4cc2-84f2-9da878156ce7/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89eab618-4cdb-4cc2-84f2-9da878156ce7/bin/ukojak-verify-afCqCEvfdi --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 4e1af5f99f69a9274241fcc833ef9ca578ac40199221caab0e395b3d77967510 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:17:42,315 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:17:42,443 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89eab618-4cdb-4cc2-84f2-9da878156ce7/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 22:17:42,453 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:17:42,453 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:17:42,492 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:17:42,493 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:17:42,494 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:17:42,495 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:17:42,495 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:17:42,496 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:17:42,497 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:17:42,497 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:17:42,498 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:17:42,498 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:17:42,499 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:17:42,500 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:17:42,500 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:17:42,501 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:17:42,501 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:17:42,502 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:17:42,502 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:17:42,503 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:17:42,504 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:17:42,504 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:17:42,505 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:17:42,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:17:42,506 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:17:42,506 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:17:42,507 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:17:42,507 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:17:42,508 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:17:42,509 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:17:42,509 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_89eab618-4cdb-4cc2-84f2-9da878156ce7/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89eab618-4cdb-4cc2-84f2-9da878156ce7/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e1af5f99f69a9274241fcc833ef9ca578ac40199221caab0e395b3d77967510 [2023-11-24 22:17:42,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:17:42,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:17:42,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:17:42,855 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:17:42,856 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:17:42,857 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89eab618-4cdb-4cc2-84f2-9da878156ce7/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/loops/while_infinite_loop_4.c [2023-11-24 22:17:46,122 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:17:46,304 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:17:46,305 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89eab618-4cdb-4cc2-84f2-9da878156ce7/sv-benchmarks/c/loops/while_infinite_loop_4.c [2023-11-24 22:17:46,312 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89eab618-4cdb-4cc2-84f2-9da878156ce7/bin/ukojak-verify-afCqCEvfdi/data/ab165e059/e4994d3bd3354f0eafccd9721544496c/FLAG10290a29e [2023-11-24 22:17:46,327 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89eab618-4cdb-4cc2-84f2-9da878156ce7/bin/ukojak-verify-afCqCEvfdi/data/ab165e059/e4994d3bd3354f0eafccd9721544496c [2023-11-24 22:17:46,330 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:17:46,331 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:17:46,333 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:17:46,333 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:17:46,338 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:17:46,339 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:17:46" (1/1) ... [2023-11-24 22:17:46,340 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d5151db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:46, skipping insertion in model container [2023-11-24 22:17:46,340 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:17:46" (1/1) ... [2023-11-24 22:17:46,359 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:17:46,509 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_89eab618-4cdb-4cc2-84f2-9da878156ce7/sv-benchmarks/c/loops/while_infinite_loop_4.c[333,346] [2023-11-24 22:17:46,521 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:17:46,538 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:17:46,553 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_89eab618-4cdb-4cc2-84f2-9da878156ce7/sv-benchmarks/c/loops/while_infinite_loop_4.c[333,346] [2023-11-24 22:17:46,557 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:17:46,575 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:17:46,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:46 WrapperNode [2023-11-24 22:17:46,576 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:17:46,577 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:17:46,578 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:17:46,578 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:17:46,586 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:46" (1/1) ... [2023-11-24 22:17:46,596 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:46" (1/1) ... [2023-11-24 22:17:46,612 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26 [2023-11-24 22:17:46,612 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:17:46,613 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:17:46,613 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:17:46,614 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:17:46,622 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:46" (1/1) ... [2023-11-24 22:17:46,623 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:46" (1/1) ... [2023-11-24 22:17:46,623 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:46" (1/1) ... [2023-11-24 22:17:46,624 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:46" (1/1) ... [2023-11-24 22:17:46,626 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:46" (1/1) ... [2023-11-24 22:17:46,630 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:46" (1/1) ... [2023-11-24 22:17:46,631 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:46" (1/1) ... [2023-11-24 22:17:46,632 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:46" (1/1) ... [2023-11-24 22:17:46,633 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:17:46,634 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:17:46,635 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:17:46,635 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:17:46,636 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:46" (1/1) ... [2023-11-24 22:17:46,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:17:46,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89eab618-4cdb-4cc2-84f2-9da878156ce7/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:17:46,682 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89eab618-4cdb-4cc2-84f2-9da878156ce7/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:17:46,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89eab618-4cdb-4cc2-84f2-9da878156ce7/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:17:46,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:17:46,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:17:46,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:17:46,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:17:46,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 22:17:46,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 22:17:46,872 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:17:46,874 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:17:46,993 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:17:47,022 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:17:47,022 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 22:17:47,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:17:47 BoogieIcfgContainer [2023-11-24 22:17:47,024 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:17:47,025 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:17:47,025 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:17:47,035 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:17:47,036 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:17:47" (1/1) ... [2023-11-24 22:17:47,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:17:47,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:47,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2023-11-24 22:17:47,100 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-11-24 22:17:47,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 22:17:47,102 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:47,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:17:47,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:47,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:17:47,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:47,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 9 transitions. [2023-11-24 22:17:47,256 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-11-24 22:17:47,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 22:17:47,257 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:47,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:17:47,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:17:47,273 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:17:47,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:17:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:17:47,334 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:17:47,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:17:47,349 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-24 22:17:47,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:17:47 ImpRootNode [2023-11-24 22:17:47,370 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:17:47,371 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:17:47,371 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:17:47,371 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:17:47,372 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:17:47" (3/4) ... [2023-11-24 22:17:47,373 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-24 22:17:47,410 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89eab618-4cdb-4cc2-84f2-9da878156ce7/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 22:17:47,411 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:17:47,412 INFO L158 Benchmark]: Toolchain (without parser) took 1080.31ms. Allocated memory is still 151.0MB. Free memory was 113.0MB in the beginning and 97.4MB in the end (delta: 15.5MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2023-11-24 22:17:47,412 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:17:47,413 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.88ms. Allocated memory is still 151.0MB. Free memory was 113.0MB in the beginning and 102.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 22:17:47,413 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.14ms. Allocated memory is still 151.0MB. Free memory was 102.5MB in the beginning and 101.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:17:47,414 INFO L158 Benchmark]: Boogie Preprocessor took 20.34ms. Allocated memory is still 151.0MB. Free memory was 101.2MB in the beginning and 100.4MB in the end (delta: 870.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:17:47,415 INFO L158 Benchmark]: RCFGBuilder took 389.77ms. Allocated memory is still 151.0MB. Free memory was 100.4MB in the beginning and 113.8MB in the end (delta: -13.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:17:47,416 INFO L158 Benchmark]: CodeCheck took 345.49ms. Allocated memory is still 151.0MB. Free memory was 113.8MB in the beginning and 99.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-24 22:17:47,416 INFO L158 Benchmark]: Witness Printer took 39.64ms. Allocated memory is still 151.0MB. Free memory was 99.1MB in the beginning and 97.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:17:47,419 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, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, 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, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 8 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 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 - CounterExampleResult [Line: 7]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L12] int x=0; [L26] COND TRUE 1 [L28] CALL eval() [L16] COND TRUE 1 [L17] x=1 [L28] RET eval() [L29] CALL __VERIFIER_assert(x==0) VAL [\old(cond)=0, x=1] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, x=1] [L7] reach_error() VAL [\old(cond)=0, cond=0, x=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 243.88ms. Allocated memory is still 151.0MB. Free memory was 113.0MB in the beginning and 102.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.14ms. Allocated memory is still 151.0MB. Free memory was 102.5MB in the beginning and 101.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.34ms. Allocated memory is still 151.0MB. Free memory was 101.2MB in the beginning and 100.4MB in the end (delta: 870.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 389.77ms. Allocated memory is still 151.0MB. Free memory was 100.4MB in the beginning and 113.8MB in the end (delta: -13.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CodeCheck took 345.49ms. Allocated memory is still 151.0MB. Free memory was 113.8MB in the beginning and 99.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 39.64ms. Allocated memory is still 151.0MB. Free memory was 99.1MB in the beginning and 97.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-24 22:17:47,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89eab618-4cdb-4cc2-84f2-9da878156ce7/bin/ukojak-verify-afCqCEvfdi/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