./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/alt_test.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464720bb-9b61-43e2-8ffc-942abc4903bb/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464720bb-9b61-43e2-8ffc-942abc4903bb/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464720bb-9b61-43e2-8ffc-942abc4903bb/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464720bb-9b61-43e2-8ffc-942abc4903bb/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/alt_test.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464720bb-9b61-43e2-8ffc-942abc4903bb/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464720bb-9b61-43e2-8ffc-942abc4903bb/bin/ukojak-verify-ImItNfHLgk --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 6bafd9f9c248bc8b929fd553117dceb5cafdbf12cfc108f50311933c849ac186 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:45:45,879 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:45:46,019 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464720bb-9b61-43e2-8ffc-942abc4903bb/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-08 19:45:46,028 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:45:46,031 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 19:45:46,072 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:45:46,074 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:45:46,075 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 19:45:46,077 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:45:46,078 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:45:46,081 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:45:46,082 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:45:46,082 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:45:46,083 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:45:46,083 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:45:46,083 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:45:46,084 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:45:46,084 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:45:46,085 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:45:46,085 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:45:46,085 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:45:46,090 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:45:46,090 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:45:46,091 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 19:45:46,091 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 19:45:46,091 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 19:45:46,092 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:45:46,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:45:46,093 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:45:46,093 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:45:46,093 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:45:46,098 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 19:45:46,098 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:45:46,099 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464720bb-9b61-43e2-8ffc-942abc4903bb/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464720bb-9b61-43e2-8ffc-942abc4903bb/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6bafd9f9c248bc8b929fd553117dceb5cafdbf12cfc108f50311933c849ac186 [2024-11-08 19:45:46,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:45:46,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:45:46,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:45:46,509 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:45:46,510 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:45:46,512 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464720bb-9b61-43e2-8ffc-942abc4903bb/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/ldv-regression/alt_test.i Unable to find full path for "g++" [2024-11-08 19:45:48,890 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:45:49,217 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:45:49,218 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464720bb-9b61-43e2-8ffc-942abc4903bb/sv-benchmarks/c/ldv-regression/alt_test.i [2024-11-08 19:45:49,238 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464720bb-9b61-43e2-8ffc-942abc4903bb/bin/ukojak-verify-ImItNfHLgk/data/ae870df9e/aae65fb34626460ba72853357c0bbe1b/FLAG9728e37f8 [2024-11-08 19:45:49,261 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464720bb-9b61-43e2-8ffc-942abc4903bb/bin/ukojak-verify-ImItNfHLgk/data/ae870df9e/aae65fb34626460ba72853357c0bbe1b [2024-11-08 19:45:49,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:45:49,267 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:45:49,268 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:45:49,269 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:45:49,274 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:45:49,275 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:45:49" (1/1) ... [2024-11-08 19:45:49,276 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b6d73ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:45:49, skipping insertion in model container [2024-11-08 19:45:49,277 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:45:49" (1/1) ... [2024-11-08 19:45:49,330 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:45:49,795 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_464720bb-9b61-43e2-8ffc-942abc4903bb/sv-benchmarks/c/ldv-regression/alt_test.i[22285,22298] [2024-11-08 19:45:49,823 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:45:49,840 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:45:49,915 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_464720bb-9b61-43e2-8ffc-942abc4903bb/sv-benchmarks/c/ldv-regression/alt_test.i[22285,22298] [2024-11-08 19:45:49,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:45:49,963 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:45:49,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:45:49 WrapperNode [2024-11-08 19:45:49,964 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:45:49,965 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:45:49,966 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:45:49,966 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:45:49,978 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:45:49" (1/1) ... [2024-11-08 19:45:49,997 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:45:49" (1/1) ... [2024-11-08 19:45:50,025 INFO L138 Inliner]: procedures = 121, calls = 13, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 35 [2024-11-08 19:45:50,026 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:45:50,027 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:45:50,027 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:45:50,027 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:45:50,038 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:45:49" (1/1) ... [2024-11-08 19:45:50,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:45:49" (1/1) ... [2024-11-08 19:45:50,042 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:45:49" (1/1) ... [2024-11-08 19:45:50,045 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:45:49" (1/1) ... [2024-11-08 19:45:50,052 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:45:49" (1/1) ... [2024-11-08 19:45:50,056 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:45:49" (1/1) ... [2024-11-08 19:45:50,057 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:45:49" (1/1) ... [2024-11-08 19:45:50,059 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:45:49" (1/1) ... [2024-11-08 19:45:50,061 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:45:50,062 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:45:50,063 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:45:50,063 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:45:50,064 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:45:49" (1/1) ... [2024-11-08 19:45:50,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:45:50,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464720bb-9b61-43e2-8ffc-942abc4903bb/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 19:45:50,104 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464720bb-9b61-43e2-8ffc-942abc4903bb/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 19:45:50,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464720bb-9b61-43e2-8ffc-942abc4903bb/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 19:45:50,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 19:45:50,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:45:50,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 19:45:50,156 INFO L130 BoogieDeclarations]: Found specification of procedure l_free [2024-11-08 19:45:50,156 INFO L138 BoogieDeclarations]: Found implementation of procedure l_free [2024-11-08 19:45:50,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 19:45:50,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:45:50,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:45:50,286 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:45:50,288 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:45:50,437 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-08 19:45:50,437 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:45:50,520 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:45:50,521 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:45:50,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:45:50 BoogieIcfgContainer [2024-11-08 19:45:50,521 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:45:50,523 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 19:45:50,523 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 19:45:50,536 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 19:45:50,537 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:45:50" (1/1) ... [2024-11-08 19:45:50,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:45:50,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:45:50,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2024-11-08 19:45:50,621 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2024-11-08 19:45:50,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-08 19:45:50,627 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:45:50,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:45:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:45:50,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:45:51,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:45:51,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 17 transitions. [2024-11-08 19:45:51,061 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-08 19:45:51,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 19:45:51,062 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:45:51,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:45:51,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:45:51,257 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:45:51,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:45:51,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 21 transitions. [2024-11-08 19:45:51,654 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2024-11-08 19:45:51,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 19:45:51,655 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:45:51,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:45:51,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:45:51,693 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:45:51,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:45:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:45:51,822 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:45:51,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:45:51,864 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2024-11-08 19:45:51,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 07:45:51 ImpRootNode [2024-11-08 19:45:51,914 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 19:45:51,915 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:45:51,915 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:45:51,916 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:45:51,917 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:45:50" (3/4) ... [2024-11-08 19:45:51,918 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-08 19:45:51,997 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464720bb-9b61-43e2-8ffc-942abc4903bb/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-08 19:45:51,997 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:45:51,998 INFO L158 Benchmark]: Toolchain (without parser) took 2731.39ms. Allocated memory is still 178.3MB. Free memory was 143.0MB in the beginning and 145.5MB in the end (delta: -2.5MB). Peak memory consumption was 68.4MB. Max. memory is 16.1GB. [2024-11-08 19:45:51,998 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 119.5MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:45:51,999 INFO L158 Benchmark]: CACSL2BoogieTranslator took 695.96ms. Allocated memory is still 178.3MB. Free memory was 143.0MB in the beginning and 134.7MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-08 19:45:52,000 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.64ms. Allocated memory is still 178.3MB. Free memory was 134.7MB in the beginning and 132.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:45:52,000 INFO L158 Benchmark]: Boogie Preprocessor took 34.91ms. Allocated memory is still 178.3MB. Free memory was 132.6MB in the beginning and 131.8MB in the end (delta: 792.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:45:52,001 INFO L158 Benchmark]: RCFGBuilder took 459.36ms. Allocated memory is still 178.3MB. Free memory was 131.8MB in the beginning and 117.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 19:45:52,002 INFO L158 Benchmark]: CodeCheck took 1391.93ms. Allocated memory is still 178.3MB. Free memory was 117.1MB in the beginning and 78.9MB in the end (delta: 38.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-11-08 19:45:52,002 INFO L158 Benchmark]: Witness Printer took 81.91ms. Allocated memory is still 178.3MB. Free memory was 78.9MB in the beginning and 145.5MB in the end (delta: -66.6MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2024-11-08 19:45:52,010 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 38 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 24 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 516]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L518] int globalState = 0; [L523] CALL, EXPR l_malloc(sizeof(int)) [L529] void *retVal = malloc(size); [L530] COND TRUE retVal != ((void *)0) [L531] globalState=1 [L532] return retVal; [L523] RET, EXPR l_malloc(sizeof(int)) [L523] int *a = (int*) l_malloc(sizeof(int)); [L524] CALL l_free(a) VAL [\old(globalState)=1, globalState=1] [L535] COND TRUE ptr!=((void *)0) VAL [\old(globalState)=1, \old(ptr)={-1:0}, globalState=1] [L535] (globalState == 1) ? (0) : __blast_assert () VAL [\old(globalState)=1, \old(ptr)={-1:0}, globalState=1] [L536] globalState = 0 [L524] RET l_free(a) VAL [a={-1:0}, globalState=0] [L525] CALL l_free(a) VAL [\old(globalState)=0, globalState=0] [L535] COND TRUE ptr!=((void *)0) VAL [\old(globalState)=0, \old(ptr)={-1:0}, globalState=0] [L535] (globalState == 1) ? (0) : __blast_assert () [L535] CALL __blast_assert () [L516] reach_error() VAL [\old(globalState)=0, globalState=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 119.5MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 695.96ms. Allocated memory is still 178.3MB. Free memory was 143.0MB in the beginning and 134.7MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.64ms. Allocated memory is still 178.3MB. Free memory was 134.7MB in the beginning and 132.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.91ms. Allocated memory is still 178.3MB. Free memory was 132.6MB in the beginning and 131.8MB in the end (delta: 792.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 459.36ms. Allocated memory is still 178.3MB. Free memory was 131.8MB in the beginning and 117.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 1391.93ms. Allocated memory is still 178.3MB. Free memory was 117.1MB in the beginning and 78.9MB in the end (delta: 38.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 81.91ms. Allocated memory is still 178.3MB. Free memory was 78.9MB in the beginning and 145.5MB in the end (delta: -66.6MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-08 19:45:52,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_464720bb-9b61-43e2-8ffc-942abc4903bb/bin/ukojak-verify-ImItNfHLgk/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