./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/string-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/string-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm --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 fd601fa28543c13c2fbec075867019b65bb9d0c4bbf720a0162dbf887aa47892 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:15:54,611 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:15:54,704 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 21:15:54,708 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 21:15:54,710 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 21:15:54,745 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:15:54,747 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 21:15:54,747 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 21:15:54,747 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:15:54,748 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:15:54,748 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:15:54,749 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:15:54,749 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 21:15:54,749 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 21:15:54,750 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 21:15:54,750 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:15:54,750 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:15:54,750 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:15:54,751 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:15:54,751 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:15:54,751 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 21:15:54,751 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:15:54,751 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:15:54,751 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:15:54,751 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:15:54,752 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:15:54,752 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:15:54,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:15:54,752 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:15:54,752 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:15:54,752 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 21:15:54,752 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 21:15:54,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 21:15:54,752 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm 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 -> fd601fa28543c13c2fbec075867019b65bb9d0c4bbf720a0162dbf887aa47892 [2024-11-13 21:15:55,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:15:55,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:15:55,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:15:55,098 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:15:55,099 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:15:55,100 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/loops/string-2.i Unable to find full path for "g++" [2024-11-13 21:15:56,950 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:15:57,218 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:15:57,220 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/sv-benchmarks/c/loops/string-2.i [2024-11-13 21:15:57,231 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/data/204abf594/761183d28da6475492f19f305f91606f/FLAG33c7b25fd [2024-11-13 21:15:57,244 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/data/204abf594/761183d28da6475492f19f305f91606f [2024-11-13 21:15:57,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:15:57,247 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:15:57,249 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:15:57,249 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:15:57,253 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:15:57,254 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:15:57" (1/1) ... [2024-11-13 21:15:57,255 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16a58b0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:15:57, skipping insertion in model container [2024-11-13 21:15:57,255 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:15:57" (1/1) ... [2024-11-13 21:15:57,271 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:15:57,447 WARN L250 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_f891292a-95f5-41b2-b4bf-d65ccf0fce71/sv-benchmarks/c/loops/string-2.i[896,909] [2024-11-13 21:15:57,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:15:57,487 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:15:57,497 WARN L250 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_f891292a-95f5-41b2-b4bf-d65ccf0fce71/sv-benchmarks/c/loops/string-2.i[896,909] [2024-11-13 21:15:57,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:15:57,520 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:15:57,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:15:57 WrapperNode [2024-11-13 21:15:57,521 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:15:57,522 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:15:57,522 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:15:57,522 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:15:57,528 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:15:57" (1/1) ... [2024-11-13 21:15:57,535 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:15:57" (1/1) ... [2024-11-13 21:15:57,553 INFO L138 Inliner]: procedures = 17, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 124 [2024-11-13 21:15:57,554 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:15:57,554 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:15:57,554 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:15:57,554 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:15:57,561 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:15:57" (1/1) ... [2024-11-13 21:15:57,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:15:57" (1/1) ... [2024-11-13 21:15:57,564 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:15:57" (1/1) ... [2024-11-13 21:15:57,564 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:15:57" (1/1) ... [2024-11-13 21:15:57,570 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:15:57" (1/1) ... [2024-11-13 21:15:57,574 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:15:57" (1/1) ... [2024-11-13 21:15:57,575 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:15:57" (1/1) ... [2024-11-13 21:15:57,576 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:15:57" (1/1) ... [2024-11-13 21:15:57,578 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:15:57,579 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:15:57,579 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:15:57,579 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:15:57,580 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:15:57" (1/1) ... [2024-11-13 21:15:57,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:15:57,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:15:57,611 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:15:57,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:15:57,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:15:57,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 21:15:57,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 21:15:57,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 21:15:57,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:15:57,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:15:57,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 21:15:57,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 21:15:57,727 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:15:57,729 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:15:57,921 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-13 21:15:57,921 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:15:57,973 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:15:57,973 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-13 21:15:57,973 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:15:57 BoogieIcfgContainer [2024-11-13 21:15:57,974 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:15:57,974 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:15:57,974 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:15:57,985 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:15:57,985 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:15:57" (1/1) ... [2024-11-13 21:15:57,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:15:58,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:15:58,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 18 states and 28 transitions. [2024-11-13 21:15:58,042 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 28 transitions. [2024-11-13 21:15:58,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 21:15:58,044 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:15:58,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:15:58,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:15:58,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:15:58,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:15:58,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2024-11-13 21:15:58,352 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2024-11-13 21:15:58,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-13 21:15:58,353 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:15:58,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:15:58,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:15:58,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:15:58,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:15:58,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 20 states and 29 transitions. [2024-11-13 21:15:58,549 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 29 transitions. [2024-11-13 21:15:58,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-13 21:15:58,549 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:15:58,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:15:58,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:15:58,641 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 21:15:58,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:15:58,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 21 states and 31 transitions. [2024-11-13 21:15:58,665 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 31 transitions. [2024-11-13 21:15:58,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-13 21:15:58,665 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:15:58,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:15:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:15:58,762 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 21:15:58,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:15:58,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 22 states and 33 transitions. [2024-11-13 21:15:58,786 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2024-11-13 21:15:58,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-13 21:15:58,786 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:15:58,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:15:58,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:15:58,909 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 21:15:58,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:15:58,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 34 transitions. [2024-11-13 21:15:58,974 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 34 transitions. [2024-11-13 21:15:58,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-13 21:15:58,975 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:15:58,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:15:59,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:15:59,139 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 21:15:59,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:15:59,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 35 transitions. [2024-11-13 21:15:59,201 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2024-11-13 21:15:59,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-13 21:15:59,201 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:15:59,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:15:59,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:15:59,354 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 21:15:59,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:15:59,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 25 states and 35 transitions. [2024-11-13 21:15:59,431 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2024-11-13 21:15:59,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 21:15:59,432 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:15:59,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:15:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:15:59,559 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 21:15:59,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:15:59,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2024-11-13 21:15:59,581 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2024-11-13 21:15:59,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-13 21:15:59,581 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:15:59,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:15:59,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:15:59,738 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 21:15:59,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:15:59,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2024-11-13 21:15:59,767 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2024-11-13 21:15:59,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-13 21:15:59,768 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:15:59,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:15:59,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:15:59,908 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 21:15:59,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:15:59,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 28 states and 37 transitions. [2024-11-13 21:15:59,933 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2024-11-13 21:15:59,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-13 21:15:59,934 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:15:59,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:15:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:00,194 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 21:16:00,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:16:00,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 30 states and 42 transitions. [2024-11-13 21:16:00,274 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 42 transitions. [2024-11-13 21:16:00,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-13 21:16:00,278 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:16:00,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:16:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:00,443 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 21:16:00,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:16:00,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 37 states and 54 transitions. [2024-11-13 21:16:00,593 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 54 transitions. [2024-11-13 21:16:00,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-13 21:16:00,594 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:16:00,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:16:00,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:00,763 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-13 21:16:00,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:16:00,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 40 states and 58 transitions. [2024-11-13 21:16:00,997 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 58 transitions. [2024-11-13 21:16:00,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-13 21:16:00,998 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:16:01,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:16:01,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:16:01,073 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:16:01,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:16:01,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:16:01,274 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:16:01,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:16:01,343 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 14 iterations. [2024-11-13 21:16:01,403 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:16:01 ImpRootNode [2024-11-13 21:16:01,403 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:16:01,404 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:16:01,404 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:16:01,405 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:16:01,406 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:15:57" (3/4) ... [2024-11-13 21:16:01,408 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 21:16:01,409 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:16:01,412 INFO L158 Benchmark]: Toolchain (without parser) took 4162.77ms. Allocated memory is still 142.6MB. Free memory was 119.3MB in the beginning and 100.4MB in the end (delta: 19.0MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2024-11-13 21:16:01,412 INFO L158 Benchmark]: CDTParser took 1.93ms. Allocated memory is still 142.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:16:01,412 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.86ms. Allocated memory is still 142.6MB. Free memory was 119.1MB in the beginning and 107.8MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 21:16:01,413 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.87ms. Allocated memory is still 142.6MB. Free memory was 107.8MB in the beginning and 106.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:16:01,413 INFO L158 Benchmark]: Boogie Preprocessor took 24.22ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 105.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:16:01,413 INFO L158 Benchmark]: RCFGBuilder took 394.70ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 89.1MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:16:01,416 INFO L158 Benchmark]: CodeCheck took 3428.73ms. Allocated memory is still 142.6MB. Free memory was 89.1MB in the beginning and 100.4MB in the end (delta: -11.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:16:01,416 INFO L158 Benchmark]: Witness Printer took 5.66ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 100.4MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:16:01,418 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, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 14, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 627 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 271 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 34 mSDsCounter, 358 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 540 IncrementalHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 358 mSolverCounterUnsat, 237 mSDtfsCounter, 540 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1887 GetRequests, 1841 SyntacticMatches, 12 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 288 NumberOfCodeBlocks, 288 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 246 ConstructedInterpolants, 0 QuantifiedInterpolants, 357 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 4 PerfectInterpolantSequences, 152/194 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: 20]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of shiftLeft at line 69. Possible FailurePath: [L31] char string_A[5], string_B[5]; [L32] int i, j, nc_A, nc_B, found=0; [L35] i=0 VAL [i=0, string_A={18768:0}, string_B={18769:0}] [L35] COND TRUE i<5 [L36] string_A[i]=__VERIFIER_nondet_char() [L35] i++ VAL [i=1, string_A={18768:0}, string_B={18769:0}] [L35] COND TRUE i<5 [L36] string_A[i]=__VERIFIER_nondet_char() [L35] i++ VAL [i=2, string_A={18768:0}, string_B={18769:0}] [L35] COND TRUE i<5 [L36] string_A[i]=__VERIFIER_nondet_char() [L35] i++ VAL [i=3, string_A={18768:0}, string_B={18769:0}] [L35] COND TRUE i<5 [L36] string_A[i]=__VERIFIER_nondet_char() [L35] i++ VAL [i=4, string_A={18768:0}, string_B={18769:0}] [L35] COND TRUE i<5 [L36] string_A[i]=__VERIFIER_nondet_char() [L35] i++ VAL [i=5, string_A={18768:0}, string_B={18769:0}] [L35] COND FALSE !(i<5) [L37] EXPR string_A[5 -1] VAL [string_A={18768:0}, string_B={18769:0}] [L37] COND FALSE !(!(string_A[5 -1]=='\0')) [L39] i=0 VAL [i=0, string_A={18768:0}, string_B={18769:0}] [L39] COND TRUE i<5 [L40] string_B[i]=__VERIFIER_nondet_char() [L39] i++ VAL [i=1, string_A={18768:0}, string_B={18769:0}] [L39] COND TRUE i<5 [L40] string_B[i]=__VERIFIER_nondet_char() [L39] i++ VAL [i=2, string_A={18768:0}, string_B={18769:0}] [L39] COND TRUE i<5 [L40] string_B[i]=__VERIFIER_nondet_char() [L39] i++ VAL [i=3, string_A={18768:0}, string_B={18769:0}] [L39] COND TRUE i<5 [L40] string_B[i]=__VERIFIER_nondet_char() [L39] i++ VAL [i=4, string_A={18768:0}, string_B={18769:0}] [L39] COND TRUE i<5 [L40] string_B[i]=__VERIFIER_nondet_char() [L39] i++ VAL [i=5, string_A={18768:0}, string_B={18769:0}] [L39] COND FALSE !(i<5) [L41] EXPR string_B[5 -1] VAL [string_A={18768:0}, string_B={18769:0}] [L41] COND FALSE !(!(string_B[5 -1]=='\0')) [L43] nc_A = 0 VAL [nc_A=0, string_A={18768:0}, string_B={18769:0}] [L44] EXPR string_A[nc_A] VAL [nc_A=0, string_A={18768:0}, string_B={18769:0}] [L44] COND TRUE string_A[nc_A]!='\0' [L45] nc_A++ VAL [nc_A=1, string_A={18768:0}, string_B={18769:0}] [L44] EXPR string_A[nc_A] VAL [nc_A=1, string_A={18768:0}, string_B={18769:0}] [L44] COND FALSE !(string_A[nc_A]!='\0') [L47] nc_B = 0 VAL [nc_A=1, nc_B=0, string_A={18768:0}, string_B={18769:0}] [L48] EXPR string_B[nc_B] VAL [nc_A=1, nc_B=0, string_A={18768:0}, string_B={18769:0}] [L48] COND TRUE string_B[nc_B]!='\0' [L49] nc_B++ VAL [nc_A=1, nc_B=1, string_A={18768:0}, string_B={18769:0}] [L48] EXPR string_B[nc_B] VAL [nc_A=1, nc_B=1, string_A={18768:0}, string_B={18769:0}] [L48] COND FALSE !(string_B[nc_B]!='\0') [L51] COND FALSE !(!(nc_B >= nc_A)) [L54] EXPR j=0 [L54] i=j=0 VAL [i=0, j=0, nc_A=1, nc_B=1, string_A={18768:0}, string_B={18769:0}] [L55] COND TRUE (inc_B-1)<nc_B-1)< main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm 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 -> fd601fa28543c13c2fbec075867019b65bb9d0c4bbf720a0162dbf887aa47892 [2024-11-13 21:16:04,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:16:04,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:16:04,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:16:04,555 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:16:04,556 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:16:04,557 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/loops/string-2.i Unable to find full path for "g++" [2024-11-13 21:16:06,498 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:16:06,733 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:16:06,734 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/sv-benchmarks/c/loops/string-2.i [2024-11-13 21:16:06,742 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/data/58f115aef/17ee48cac83d407f8ed40f5ff743a7f8/FLAG5713c743c [2024-11-13 21:16:07,093 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/data/58f115aef/17ee48cac83d407f8ed40f5ff743a7f8 [2024-11-13 21:16:07,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:16:07,097 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:16:07,098 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:16:07,101 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:16:07,105 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:16:07,106 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:16:07" (1/1) ... [2024-11-13 21:16:07,109 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23af6580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:16:07, skipping insertion in model container [2024-11-13 21:16:07,109 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:16:07" (1/1) ... [2024-11-13 21:16:07,127 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:16:07,306 WARN L250 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_f891292a-95f5-41b2-b4bf-d65ccf0fce71/sv-benchmarks/c/loops/string-2.i[896,909] [2024-11-13 21:16:07,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:16:07,344 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:16:07,355 WARN L250 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_f891292a-95f5-41b2-b4bf-d65ccf0fce71/sv-benchmarks/c/loops/string-2.i[896,909] [2024-11-13 21:16:07,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:16:07,382 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:16:07,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:16:07 WrapperNode [2024-11-13 21:16:07,383 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:16:07,384 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:16:07,384 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:16:07,385 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:16:07,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:16:07" (1/1) ... [2024-11-13 21:16:07,400 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:16:07" (1/1) ... [2024-11-13 21:16:07,419 INFO L138 Inliner]: procedures = 17, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 116 [2024-11-13 21:16:07,419 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:16:07,420 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:16:07,420 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:16:07,420 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:16:07,427 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:16:07" (1/1) ... [2024-11-13 21:16:07,427 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:16:07" (1/1) ... [2024-11-13 21:16:07,429 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:16:07" (1/1) ... [2024-11-13 21:16:07,430 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:16:07" (1/1) ... [2024-11-13 21:16:07,437 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:16:07" (1/1) ... [2024-11-13 21:16:07,441 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:16:07" (1/1) ... [2024-11-13 21:16:07,443 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:16:07" (1/1) ... [2024-11-13 21:16:07,444 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:16:07" (1/1) ... [2024-11-13 21:16:07,447 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:16:07,448 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:16:07,448 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:16:07,448 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:16:07,449 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:16:07" (1/1) ... [2024-11-13 21:16:07,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:16:07,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:16:07,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:16:07,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:16:07,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:16:07,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-13 21:16:07,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 21:16:07,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 21:16:07,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:16:07,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:16:07,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-11-13 21:16:07,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 21:16:07,620 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:16:07,622 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:16:07,909 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-13 21:16:07,910 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:16:07,972 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:16:07,972 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-13 21:16:07,972 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:16:07 BoogieIcfgContainer [2024-11-13 21:16:07,972 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:16:07,973 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:16:07,973 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:16:07,989 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:16:07,990 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:16:07" (1/1) ... [2024-11-13 21:16:08,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:16:08,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:16:08,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 18 states and 28 transitions. [2024-11-13 21:16:08,056 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 28 transitions. [2024-11-13 21:16:08,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 21:16:08,059 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:16:08,059 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:16:08,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:16:08,062 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:16:08,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 21:16:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:08,192 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 21:16:08,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:08,270 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 21:16:08,274 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 21:16:08,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:16:08,296 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2024-11-13 21:16:08,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 21:16:08,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:16:08,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2024-11-13 21:16:08,336 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2024-11-13 21:16:08,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-13 21:16:08,336 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:16:08,337 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:16:08,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:16:08,339 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:16:08,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-13 21:16:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:08,432 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 21:16:08,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:08,476 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 21:16:08,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 21:16:08,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:16:08,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2024-11-13 21:16:08,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:16:08,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2024-11-13 21:16:08,567 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2024-11-13 21:16:08,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-13 21:16:08,568 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:16:08,568 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:16:08,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:16:08,573 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:16:08,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-13 21:16:08,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:08,684 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 21:16:08,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:08,719 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 21:16:08,720 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 21:16:08,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 21:16:08,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-13 21:16:08,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:16:08,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 20 states and 29 transitions. [2024-11-13 21:16:08,771 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 29 transitions. [2024-11-13 21:16:08,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-13 21:16:08,772 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:16:08,773 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:16:08,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:16:08,777 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:16:08,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-13 21:16:08,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:08,881 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 21:16:08,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:08,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 21:16:08,929 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 21:16:08,960 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 21:16:08,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2024-11-13 21:16:09,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:16:09,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 21 states and 30 transitions. [2024-11-13 21:16:09,030 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 30 transitions. [2024-11-13 21:16:09,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-13 21:16:09,031 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:16:09,031 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:16:09,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:16:09,033 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:16:09,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-13 21:16:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:09,149 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 21:16:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:09,190 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 21:16:09,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 21:16:09,211 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 21:16:09,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-13 21:16:09,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:16:09,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2024-11-13 21:16:09,247 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2024-11-13 21:16:09,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-13 21:16:09,248 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:16:09,248 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:16:09,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:16:09,250 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:16:09,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-13 21:16:09,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:09,367 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 21:16:09,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:09,437 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 21:16:09,441 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 21:16:09,479 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 21:16:09,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-13 21:16:09,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:16:09,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 23 states and 32 transitions. [2024-11-13 21:16:09,586 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 32 transitions. [2024-11-13 21:16:09,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-13 21:16:09,587 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:16:09,588 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:16:09,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:16:09,590 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:16:09,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-13 21:16:09,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:09,726 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 21:16:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:09,774 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 21:16:09,777 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 21:16:09,818 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 21:16:09,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-11-13 21:16:09,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:16:09,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2024-11-13 21:16:09,923 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2024-11-13 21:16:09,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-13 21:16:09,923 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:16:09,923 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:16:09,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:16:09,928 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:16:09,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-13 21:16:10,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:10,044 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 21:16:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:10,086 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 21:16:10,087 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 21:16:10,100 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 21:16:10,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2024-11-13 21:16:10,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:16:10,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 25 states and 34 transitions. [2024-11-13 21:16:10,141 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2024-11-13 21:16:10,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 21:16:10,141 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:16:10,141 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:16:10,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:16:10,147 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:16:10,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-13 21:16:10,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:10,289 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 21:16:10,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:10,336 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 21:16:10,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 21:16:10,358 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 21:16:10,362 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (10)] Exception during sending of exit command (exit): Broken pipe [2024-11-13 21:16:10,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-11-13 21:16:10,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:16:10,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 26 states and 35 transitions. [2024-11-13 21:16:10,398 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2024-11-13 21:16:10,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-13 21:16:10,399 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:16:10,399 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:16:10,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:16:10,404 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:16:10,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-13 21:16:10,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:10,549 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 21:16:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:10,596 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 21:16:10,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 21:16:10,705 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 21:16:10,707 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (11)] Exception during sending of exit command (exit): Broken pipe [2024-11-13 21:16:10,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-11-13 21:16:10,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:16:10,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 31 states and 45 transitions. [2024-11-13 21:16:10,877 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2024-11-13 21:16:10,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-13 21:16:10,879 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:16:10,879 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:16:10,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:16:10,881 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:16:10,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-11-13 21:16:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:11,038 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 21:16:11,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:11,096 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 21:16:11,097 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 21:16:11,217 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 21:16:11,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2024-11-13 21:16:11,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:16:11,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 35 states and 53 transitions. [2024-11-13 21:16:11,536 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 53 transitions. [2024-11-13 21:16:11,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-13 21:16:11,537 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:16:11,537 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:16:11,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:16:11,541 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:16:11,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-13 21:16:11,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:11,698 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 21:16:11,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:11,747 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 21:16:11,748 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 21:16:11,854 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-13 21:16:11,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2024-11-13 21:16:12,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:16:12,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 44 states and 68 transitions. [2024-11-13 21:16:12,533 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 68 transitions. [2024-11-13 21:16:12,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-13 21:16:12,533 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:16:12,533 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:16:12,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:16:12,535 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:16:12,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-13 21:16:12,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:12,699 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 21:16:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:12,742 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 21:16:12,744 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 21:16:12,904 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 21:16:12,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-11-13 21:16:13,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:16:13,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 48 states and 76 transitions. [2024-11-13 21:16:13,374 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 76 transitions. [2024-11-13 21:16:13,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-13 21:16:13,375 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:16:13,379 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:16:13,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:16:13,382 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:16:13,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2024-11-13 21:16:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:13,560 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 21:16:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:13,608 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 21:16:13,609 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 21:16:13,647 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 21:16:13,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2024-11-13 21:16:14,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:16:14,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 52 states and 82 transitions. [2024-11-13 21:16:14,119 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 82 transitions. [2024-11-13 21:16:14,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-13 21:16:14,119 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:16:14,119 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:16:14,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:16:14,124 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:16:14,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-11-13 21:16:14,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:14,298 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 21:16:14,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:14,337 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 21:16:14,339 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 21:16:14,424 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 21:16:14,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2024-11-13 21:16:14,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:16:14,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 53 states and 83 transitions. [2024-11-13 21:16:14,671 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 83 transitions. [2024-11-13 21:16:14,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-13 21:16:14,672 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:16:14,672 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:16:14,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:16:14,674 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:16:14,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-13 21:16:14,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:14,862 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 21:16:14,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:16:14,916 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 21:16:14,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 21:16:14,938 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-13 21:16:14,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2024-11-13 21:16:14,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:16:14,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 54 states and 84 transitions. [2024-11-13 21:16:14,980 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 84 transitions. [2024-11-13 21:16:14,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-13 21:16:14,981 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:16:14,981 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:16:14,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:16:14,983 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:16:14,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2024-11-13 21:16:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:16:15,530 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:16:15,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:16:16,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:16:16,137 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:16:16,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:16:16,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2024-11-13 21:16:16,380 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 17 iterations. [2024-11-13 21:16:16,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:16:16 ImpRootNode [2024-11-13 21:16:16,434 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:16:16,434 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:16:16,434 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:16:16,434 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:16:16,436 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:16:07" (3/4) ... [2024-11-13 21:16:16,437 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 21:16:16,502 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f891292a-95f5-41b2-b4bf-d65ccf0fce71/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 21:16:16,502 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:16:16,505 INFO L158 Benchmark]: Toolchain (without parser) took 9407.51ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 60.6MB in the beginning and 33.3MB in the end (delta: 27.3MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. [2024-11-13 21:16:16,505 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 83.9MB. Free memory is still 64.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:16:16,507 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.87ms. Allocated memory is still 83.9MB. Free memory was 60.6MB in the beginning and 48.6MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 21:16:16,508 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.06ms. Allocated memory is still 83.9MB. Free memory was 48.6MB in the beginning and 47.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:16:16,508 INFO L158 Benchmark]: Boogie Preprocessor took 27.21ms. Allocated memory is still 83.9MB. Free memory was 47.3MB in the beginning and 46.0MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 21:16:16,508 INFO L158 Benchmark]: RCFGBuilder took 525.00ms. Allocated memory is still 83.9MB. Free memory was 46.0MB in the beginning and 29.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:16:16,509 INFO L158 Benchmark]: CodeCheck took 8460.50ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 29.2MB in the beginning and 36.7MB in the end (delta: -7.5MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2024-11-13 21:16:16,513 INFO L158 Benchmark]: Witness Printer took 68.98ms. Allocated memory is still 100.7MB. Free memory was 36.7MB in the beginning and 33.3MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:16:16,514 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, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.4s, OverallIterations: 17, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 903 SdHoareTripleChecker+Valid, 4.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 173 mSDsluCounter, 418 SdHoareTripleChecker+Invalid, 3.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 106 mSDsCounter, 598 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1231 IncrementalHoareTripleChecker+Invalid, 1829 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 598 mSolverCounterUnsat, 312 mSDtfsCounter, 1231 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2698 GetRequests, 2634 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1575 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 360 NumberOfCodeBlocks, 360 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 315 ConstructedInterpolants, 0 QuantifiedInterpolants, 492 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1195 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 16 InterpolantComputations, 5 PerfectInterpolantSequences, 164/224 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: 20]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L31] char string_A[5], string_B[5]; [L32] int i, j, nc_A, nc_B, found=0; [L35] i=0 VAL [i=0, string_A={262146:0}, string_B={1048577:0}] [L35] COND TRUE i<5 [L36] string_A[i]=__VERIFIER_nondet_char() [L35] i++ VAL [i=1, string_A={262146:0}, string_B={1048577:0}] [L35] COND TRUE i<5 [L36] string_A[i]=__VERIFIER_nondet_char() [L35] i++ VAL [i=2, string_A={262146:0}, string_B={1048577:0}] [L35] COND TRUE i<5 [L36] string_A[i]=__VERIFIER_nondet_char() [L35] i++ VAL [i=3, string_A={262146:0}, string_B={1048577:0}] [L35] COND TRUE i<5 [L36] string_A[i]=__VERIFIER_nondet_char() [L35] i++ VAL [i=4, string_A={262146:0}, string_B={1048577:0}] [L35] COND TRUE i<5 [L36] string_A[i]=__VERIFIER_nondet_char() [L35] i++ VAL [i=5, string_A={262146:0}, string_B={1048577:0}] [L35] COND FALSE !(i<5) [L37] EXPR string_A[5 -1] VAL [string_A={262146:0}, string_B={1048577:0}] [L37] COND FALSE !(!(string_A[5 -1]=='\0')) [L39] i=0 VAL [i=0, string_A={262146:0}, string_B={1048577:0}] [L39] COND TRUE i<5 [L40] string_B[i]=__VERIFIER_nondet_char() [L39] i++ VAL [i=1, string_A={262146:0}, string_B={1048577:0}] [L39] COND TRUE i<5 [L40] string_B[i]=__VERIFIER_nondet_char() [L39] i++ VAL [i=2, string_A={262146:0}, string_B={1048577:0}] [L39] COND TRUE i<5 [L40] string_B[i]=__VERIFIER_nondet_char() [L39] i++ VAL [i=3, string_A={262146:0}, string_B={1048577:0}] [L39] COND TRUE i<5 [L40] string_B[i]=__VERIFIER_nondet_char() [L39] i++ VAL [i=4, string_A={262146:0}, string_B={1048577:0}] [L39] COND TRUE i<5 [L40] string_B[i]=__VERIFIER_nondet_char() [L39] i++ VAL [i=5, string_A={262146:0}, string_B={1048577:0}] [L39] COND FALSE !(i<5) [L41] EXPR string_B[5 -1] VAL [string_A={262146:0}, string_B={1048577:0}] [L41] COND FALSE !(!(string_B[5 -1]=='\0')) [L43] nc_A = 0 VAL [nc_A=0, string_A={262146:0}, string_B={1048577:0}] [L44] EXPR string_A[nc_A] VAL [nc_A=0, string_A={262146:0}, string_B={1048577:0}] [L44] COND TRUE string_A[nc_A]!='\0' [L45] nc_A++ VAL [nc_A=1, string_A={262146:0}, string_B={1048577:0}] [L44] EXPR string_A[nc_A] VAL [nc_A=1, string_A={262146:0}, string_B={1048577:0}] [L44] COND FALSE !(string_A[nc_A]!='\0') [L47] nc_B = 0 VAL [nc_A=1, nc_B=0, string_A={262146:0}, string_B={1048577:0}] [L48] EXPR string_B[nc_B] VAL [nc_A=1, nc_B=0, string_A={262146:0}, string_B={1048577:0}] [L48] COND TRUE string_B[nc_B]!='\0' [L49] nc_B++ VAL [nc_A=1, nc_B=1, string_A={262146:0}, string_B={1048577:0}] [L48] EXPR string_B[nc_B] VAL [nc_A=1, nc_B=1, string_A={262146:0}, string_B={1048577:0}] [L48] COND FALSE !(string_B[nc_B]!='\0') [L51] COND FALSE !(!(nc_B >= nc_A)) [L54] EXPR j=0 [L54] i=j=0 VAL [i=0, j=0, nc_A=1, nc_B=1, string_A={262146:0}, string_B={1048577:0}] [L55] COND TRUE (inc_B-1)<