./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/stateful_check.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa930f0-232b-40d6-8c12-137997db9d3e/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa930f0-232b-40d6-8c12-137997db9d3e/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa930f0-232b-40d6-8c12-137997db9d3e/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa930f0-232b-40d6-8c12-137997db9d3e/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/stateful_check.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa930f0-232b-40d6-8c12-137997db9d3e/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa930f0-232b-40d6-8c12-137997db9d3e/bin/ukojak-verify-CZk0znPC7b --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 86e7865b5c88aae342720e4dde014f366638a0b48b0e0f6e55acb2c675bcac3e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 05:36:46,460 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:36:46,515 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa930f0-232b-40d6-8c12-137997db9d3e/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 05:36:46,519 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 05:36:46,519 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 05:36:46,538 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:36:46,539 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 05:36:46,539 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 05:36:46,540 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:36:46,540 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:36:46,540 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:36:46,540 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 05:36:46,540 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 05:36:46,540 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 05:36:46,540 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 05:36:46,540 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:36:46,541 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 05:36:46,541 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:36:46,541 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 05:36:46,541 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 05:36:46,541 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 05:36:46,541 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:36:46,541 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:36:46,541 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:36:46,541 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:36:46,541 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:36:46,541 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:36:46,541 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:36:46,542 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:36:46,542 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:36:46,542 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 05:36:46,542 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 05:36:46,542 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 05:36:46,542 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_2fa930f0-232b-40d6-8c12-137997db9d3e/bin/ukojak-verify-CZk0znPC7b 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 -> 86e7865b5c88aae342720e4dde014f366638a0b48b0e0f6e55acb2c675bcac3e [2024-12-06 05:36:46,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:36:46,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:36:46,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:36:46,782 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:36:46,783 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:36:46,784 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa930f0-232b-40d6-8c12-137997db9d3e/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/ldv-regression/stateful_check.c [2024-12-06 05:36:49,496 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa930f0-232b-40d6-8c12-137997db9d3e/bin/ukojak-verify-CZk0znPC7b/data/a488ebb26/a883463d8a774ae5b2c44caec615ab38/FLAG28210540b [2024-12-06 05:36:49,661 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:36:49,661 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa930f0-232b-40d6-8c12-137997db9d3e/sv-benchmarks/c/ldv-regression/stateful_check.c [2024-12-06 05:36:49,668 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa930f0-232b-40d6-8c12-137997db9d3e/bin/ukojak-verify-CZk0znPC7b/data/a488ebb26/a883463d8a774ae5b2c44caec615ab38/FLAG28210540b [2024-12-06 05:36:50,041 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa930f0-232b-40d6-8c12-137997db9d3e/bin/ukojak-verify-CZk0znPC7b/data/a488ebb26/a883463d8a774ae5b2c44caec615ab38 [2024-12-06 05:36:50,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:36:50,044 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:36:50,045 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:36:50,045 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:36:50,048 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:36:50,049 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:36:50" (1/1) ... [2024-12-06 05:36:50,049 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@363c030c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:50, skipping insertion in model container [2024-12-06 05:36:50,050 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:36:50" (1/1) ... [2024-12-06 05:36:50,061 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:36:50,174 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_2fa930f0-232b-40d6-8c12-137997db9d3e/sv-benchmarks/c/ldv-regression/stateful_check.c[298,311] [2024-12-06 05:36:50,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:36:50,208 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:36:50,217 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_2fa930f0-232b-40d6-8c12-137997db9d3e/sv-benchmarks/c/ldv-regression/stateful_check.c[298,311] [2024-12-06 05:36:50,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:36:50,238 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:36:50,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:50 WrapperNode [2024-12-06 05:36:50,239 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:36:50,240 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:36:50,240 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:36:50,240 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:36:50,246 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:50" (1/1) ... [2024-12-06 05:36:50,251 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:50" (1/1) ... [2024-12-06 05:36:50,267 INFO L138 Inliner]: procedures = 21, calls = 20, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 103 [2024-12-06 05:36:50,267 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:36:50,268 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:36:50,268 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:36:50,268 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:36:50,274 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:50" (1/1) ... [2024-12-06 05:36:50,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:50" (1/1) ... [2024-12-06 05:36:50,275 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:50" (1/1) ... [2024-12-06 05:36:50,275 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:50" (1/1) ... [2024-12-06 05:36:50,278 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:50" (1/1) ... [2024-12-06 05:36:50,279 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:50" (1/1) ... [2024-12-06 05:36:50,282 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:50" (1/1) ... [2024-12-06 05:36:50,283 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:50" (1/1) ... [2024-12-06 05:36:50,284 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:50" (1/1) ... [2024-12-06 05:36:50,285 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:36:50,286 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:36:50,286 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:36:50,286 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:36:50,287 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:50" (1/1) ... [2024-12-06 05:36:50,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:36:50,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa930f0-232b-40d6-8c12-137997db9d3e/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:36:50,315 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa930f0-232b-40d6-8c12-137997db9d3e/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:36:50,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa930f0-232b-40d6-8c12-137997db9d3e/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:36:50,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 05:36:50,342 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2024-12-06 05:36:50,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2024-12-06 05:36:50,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 05:36:50,342 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-12-06 05:36:50,342 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-12-06 05:36:50,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:36:50,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:36:50,390 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:36:50,391 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:36:50,533 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-12-06 05:36:50,534 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:36:50,594 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:36:50,594 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 05:36:50,594 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:36:50 BoogieIcfgContainer [2024-12-06 05:36:50,594 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:36:50,595 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:36:50,595 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:36:50,605 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:36:50,605 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:36:50" (1/1) ... [2024-12-06 05:36:50,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:36:50,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:36:50,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 30 states and 44 transitions. [2024-12-06 05:36:50,659 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2024-12-06 05:36:50,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 05:36:50,661 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:36:50,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:36:50,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:36:50,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:36:50,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:36:50,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 29 states and 39 transitions. [2024-12-06 05:36:50,765 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2024-12-06 05:36:50,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 05:36:50,766 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:36:50,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:36:50,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:36:50,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:36:50,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:36:50,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 33 states and 44 transitions. [2024-12-06 05:36:50,837 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2024-12-06 05:36:50,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 05:36:50,837 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:36:50,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:36:50,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:36:50,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 05:36:50,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:36:50,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 35 states and 51 transitions. [2024-12-06 05:36:50,929 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 51 transitions. [2024-12-06 05:36:50,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-06 05:36:50,932 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:36:50,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:36:50,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:36:50,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:36:51,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:36:51,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 42 states and 69 transitions. [2024-12-06 05:36:51,102 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 69 transitions. [2024-12-06 05:36:51,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 05:36:51,102 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:36:51,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:36:51,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:36:51,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 05:36:51,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:36:51,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 43 states and 70 transitions. [2024-12-06 05:36:51,161 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 70 transitions. [2024-12-06 05:36:51,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-06 05:36:51,161 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:36:51,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:36:51,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:36:51,190 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 05:36:51,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:36:51,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 44 states and 71 transitions. [2024-12-06 05:36:51,202 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 71 transitions. [2024-12-06 05:36:51,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-06 05:36:51,203 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:36:51,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:36:51,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:36:51,233 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 05:36:51,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:36:51,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 45 states and 72 transitions. [2024-12-06 05:36:51,245 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 72 transitions. [2024-12-06 05:36:51,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-06 05:36:51,245 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:36:51,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:36:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:36:51,269 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 05:36:51,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:36:51,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 46 states and 72 transitions. [2024-12-06 05:36:51,280 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 72 transitions. [2024-12-06 05:36:51,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-06 05:36:51,280 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:36:51,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:36:51,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:36:51,352 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:36:51,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:36:51,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 54 states and 91 transitions. [2024-12-06 05:36:51,562 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 91 transitions. [2024-12-06 05:36:51,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-06 05:36:51,563 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:36:51,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:36:51,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:36:51,591 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-06 05:36:51,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:36:51,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 55 states and 92 transitions. [2024-12-06 05:36:51,636 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 92 transitions. [2024-12-06 05:36:51,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-06 05:36:51,636 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:36:51,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:36:51,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:36:51,661 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-06 05:36:51,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:36:51,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 56 states and 93 transitions. [2024-12-06 05:36:51,688 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 93 transitions. [2024-12-06 05:36:51,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-12-06 05:36:51,688 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:36:51,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:36:51,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:36:51,710 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-06 05:36:51,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:36:51,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 57 states and 94 transitions. [2024-12-06 05:36:51,722 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 94 transitions. [2024-12-06 05:36:51,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-06 05:36:51,723 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:36:51,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:36:51,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:36:51,748 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-06 05:36:51,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:36:51,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 58 states and 94 transitions. [2024-12-06 05:36:51,758 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 94 transitions. [2024-12-06 05:36:51,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 05:36:51,759 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:36:51,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:36:51,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:36:51,860 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:36:52,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:36:52,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 71 states and 122 transitions. [2024-12-06 05:36:52,209 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 122 transitions. [2024-12-06 05:36:52,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-12-06 05:36:52,210 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:36:52,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:36:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:36:52,243 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-06 05:36:52,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:36:52,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 72 states and 123 transitions. [2024-12-06 05:36:52,288 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 123 transitions. [2024-12-06 05:36:52,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 05:36:52,289 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:36:52,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:36:52,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:36:52,308 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-06 05:36:52,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:36:52,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 73 states and 124 transitions. [2024-12-06 05:36:52,320 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 124 transitions. [2024-12-06 05:36:52,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-12-06 05:36:52,321 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:36:52,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:36:52,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:36:52,348 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-06 05:36:52,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:36:52,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 74 states and 125 transitions. [2024-12-06 05:36:52,364 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 125 transitions. [2024-12-06 05:36:52,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-12-06 05:36:52,364 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:36:52,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:36:52,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:36:52,390 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-06 05:36:52,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:36:52,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 75 states and 125 transitions. [2024-12-06 05:36:52,406 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 125 transitions. [2024-12-06 05:36:52,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-12-06 05:36:52,407 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:36:52,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:36:52,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:36:52,457 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-12-06 05:36:52,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:36:52,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 82 states and 134 transitions. [2024-12-06 05:36:52,524 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 134 transitions. [2024-12-06 05:36:52,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-12-06 05:36:52,524 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:36:52,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:36:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:36:52,570 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-12-06 05:36:52,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:36:52,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 83 states and 134 transitions. [2024-12-06 05:36:52,584 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 134 transitions. [2024-12-06 05:36:52,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-12-06 05:36:52,584 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:36:52,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:36:52,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:36:52,596 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:36:52,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:36:52,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:36:52,653 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:36:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:36:52,692 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 21 iterations. [2024-12-06 05:36:52,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 05:36:52 ImpRootNode [2024-12-06 05:36:52,723 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 05:36:52,723 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 05:36:52,723 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 05:36:52,723 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 05:36:52,724 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:36:50" (3/4) ... [2024-12-06 05:36:52,724 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 05:36:52,762 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 20. [2024-12-06 05:36:52,811 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa930f0-232b-40d6-8c12-137997db9d3e/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 05:36:52,811 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa930f0-232b-40d6-8c12-137997db9d3e/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 05:36:52,811 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 05:36:52,812 INFO L158 Benchmark]: Toolchain (without parser) took 2767.69ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 92.5MB in the beginning and 99.2MB in the end (delta: -6.7MB). Peak memory consumption was 89.0MB. Max. memory is 16.1GB. [2024-12-06 05:36:52,812 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:36:52,812 INFO L158 Benchmark]: CACSL2BoogieTranslator took 194.23ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 81.0MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 05:36:52,813 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.19ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 79.9MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 05:36:52,813 INFO L158 Benchmark]: Boogie Preprocessor took 17.65ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 78.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:36:52,813 INFO L158 Benchmark]: RCFGBuilder took 308.69ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 62.3MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 05:36:52,814 INFO L158 Benchmark]: CodeCheck took 2127.51ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 62.3MB in the beginning and 104.7MB in the end (delta: -42.4MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. [2024-12-06 05:36:52,814 INFO L158 Benchmark]: Witness Printer took 88.22ms. Allocated memory is still 209.7MB. Free memory was 104.7MB in the beginning and 99.2MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 05:36:52,816 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 3 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 21, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2093 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1349 mSDsluCounter, 2320 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1643 mSDsCounter, 374 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1920 IncrementalHoareTripleChecker+Invalid, 2294 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 374 mSolverCounterUnsat, 677 mSDtfsCounter, 1920 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3257 GetRequests, 3208 SyntacticMatches, 7 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 706 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 378 NumberOfCodeBlocks, 378 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 326 ConstructedInterpolants, 0 QuantifiedInterpolants, 874 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 18 PerfectInterpolantSequences, 168/182 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, ConComCheckerStatistics: No data available - CounterExampleResult [Line: 6]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L11] int ldv_mutex = 1; [L13] int open_called = 0; [L76] int ldv_s_misc_fops_file_operations = 0; [L77] CALL my_init() [L71] open_called = 0 [L72] return 0; [L77] RET my_init() [L78] COND TRUE __VERIFIER_nondet_int() [L82] case 0: [L84] CALL misc_open() [L59] COND TRUE __VERIFIER_nondet_int() [L61] return 1; [L84] RET misc_open() [L85] ldv_s_misc_fops_file_operations++ VAL [ldv_mutex=1, ldv_s_misc_fops_file_operations=1, open_called=0] [L78] COND TRUE __VERIFIER_nondet_int() [L82] case 0: [L90] case 1: [L92] CALL misc_read() [L54] return 0; [L92] RET misc_read() [L93] ldv_s_misc_fops_file_operations++ VAL [ldv_mutex=1, ldv_s_misc_fops_file_operations=2, open_called=0] [L78] COND TRUE __VERIFIER_nondet_int() [L82] case 0: [L90] case 1: [L98] case 2: [L100] CALL misc_llseek() [L50] return 0; [L100] RET misc_llseek() [L101] ldv_s_misc_fops_file_operations++ VAL [ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L78] COND TRUE __VERIFIER_nondet_int() [L82] case 0: [L90] case 1: [L98] case 2: [L106] case 3: [L108] CALL misc_release() [L36] COND FALSE !(\read(open_called)) VAL [ldv_mutex=1, open_called=0] [L43] CALL mutex_lock() VAL [\old(ldv_mutex)=1, ldv_mutex=1, open_called=0] [L18] (ldv_mutex == 1) ? 0 : __blast_assert() VAL [\old(ldv_mutex)=1, ldv_mutex=1, open_called=0] [L19] ldv_mutex = 2 [L43] RET mutex_lock() VAL [ldv_mutex=2, open_called=0] [L44] CALL mutex_lock() VAL [\old(ldv_mutex)=2, ldv_mutex=2, open_called=0] [L18] (ldv_mutex == 1) ? 0 : __blast_assert() VAL [\old(ldv_mutex)=2, ldv_mutex=2, open_called=0] [L18] CALL __blast_assert() VAL [\old(ldv_mutex)=2, ldv_mutex=2, open_called=0] [L6] reach_error() VAL [\old(ldv_mutex)=2, ldv_mutex=2, open_called=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 194.23ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 81.0MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.19ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 79.9MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.65ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 78.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 308.69ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 62.3MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 2127.51ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 62.3MB in the beginning and 104.7MB in the end (delta: -42.4MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. * Witness Printer took 88.22ms. Allocated memory is still 209.7MB. Free memory was 104.7MB in the beginning and 99.2MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 05:36:52,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fa930f0-232b-40d6-8c12-137997db9d3e/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE