./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_b5_o10-2.c --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_833f3204-3287-4283-a2b3-d6f6037d0557/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_833f3204-3287-4283-a2b3-d6f6037d0557/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_833f3204-3287-4283-a2b3-d6f6037d0557/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_833f3204-3287-4283-a2b3-d6f6037d0557/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_b5_o10-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_833f3204-3287-4283-a2b3-d6f6037d0557/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_833f3204-3287-4283-a2b3-d6f6037d0557/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 ec6cabd8118457b9c0b0fa0634e1000a9ed6e94f430780d1729f9bc16e854f85 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:00:19,815 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:00:19,916 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_833f3204-3287-4283-a2b3-d6f6037d0557/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-09 00:00:19,923 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:00:19,925 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:00:19,957 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:00:19,960 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:00:19,960 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:00:19,961 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:00:19,963 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:00:19,964 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:00:19,964 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:00:19,964 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:00:19,965 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:00:19,965 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:00:19,966 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:00:19,968 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:00:19,969 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:00:19,969 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:00:19,969 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:00:19,970 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:00:19,970 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:00:19,970 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:00:19,971 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:00:19,971 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:00:19,971 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:00:19,972 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:00:19,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:00:19,972 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:00:19,972 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:00:19,973 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:00:19,976 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:00:19,976 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:00:19,977 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_833f3204-3287-4283-a2b3-d6f6037d0557/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_833f3204-3287-4283-a2b3-d6f6037d0557/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec6cabd8118457b9c0b0fa0634e1000a9ed6e94f430780d1729f9bc16e854f85 [2024-11-09 00:00:20,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:00:20,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:00:20,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:00:20,347 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:00:20,347 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:00:20,350 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_833f3204-3287-4283-a2b3-d6f6037d0557/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/recursive-simple/id_b5_o10-2.c Unable to find full path for "g++" [2024-11-09 00:00:22,411 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:00:22,665 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:00:22,667 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_833f3204-3287-4283-a2b3-d6f6037d0557/sv-benchmarks/c/recursive-simple/id_b5_o10-2.c [2024-11-09 00:00:22,678 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_833f3204-3287-4283-a2b3-d6f6037d0557/bin/ukojak-verify-ImItNfHLgk/data/95e79655b/1f4bee893af94166a98a9cc2d3fbe591/FLAGc4ee8a659 [2024-11-09 00:00:22,705 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_833f3204-3287-4283-a2b3-d6f6037d0557/bin/ukojak-verify-ImItNfHLgk/data/95e79655b/1f4bee893af94166a98a9cc2d3fbe591 [2024-11-09 00:00:22,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:00:22,714 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:00:22,716 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:00:22,716 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:00:22,726 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:00:22,727 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:00:22" (1/1) ... [2024-11-09 00:00:22,728 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61679310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:00:22, skipping insertion in model container [2024-11-09 00:00:22,732 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:00:22" (1/1) ... [2024-11-09 00:00:22,765 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:00:23,032 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_833f3204-3287-4283-a2b3-d6f6037d0557/sv-benchmarks/c/recursive-simple/id_b5_o10-2.c[530,543] [2024-11-09 00:00:23,037 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:00:23,054 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:00:23,076 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_833f3204-3287-4283-a2b3-d6f6037d0557/sv-benchmarks/c/recursive-simple/id_b5_o10-2.c[530,543] [2024-11-09 00:00:23,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:00:23,112 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:00:23,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:00:23 WrapperNode [2024-11-09 00:00:23,113 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:00:23,114 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:00:23,114 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:00:23,115 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:00:23,124 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:00:23" (1/1) ... [2024-11-09 00:00:23,136 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:00:23" (1/1) ... [2024-11-09 00:00:23,175 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2024-11-09 00:00:23,179 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:00:23,180 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:00:23,180 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:00:23,180 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:00:23,190 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:00:23" (1/1) ... [2024-11-09 00:00:23,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:00:23" (1/1) ... [2024-11-09 00:00:23,192 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:00:23" (1/1) ... [2024-11-09 00:00:23,192 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:00:23" (1/1) ... [2024-11-09 00:00:23,220 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:00:23" (1/1) ... [2024-11-09 00:00:23,227 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:00:23" (1/1) ... [2024-11-09 00:00:23,228 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:00:23" (1/1) ... [2024-11-09 00:00:23,229 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:00:23" (1/1) ... [2024-11-09 00:00:23,239 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:00:23,240 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:00:23,240 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:00:23,241 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:00:23,242 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:00:23" (1/1) ... [2024-11-09 00:00:23,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:00:23,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_833f3204-3287-4283-a2b3-d6f6037d0557/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:00:23,295 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_833f3204-3287-4283-a2b3-d6f6037d0557/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:00:23,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_833f3204-3287-4283-a2b3-d6f6037d0557/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:00:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:00:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:00:23,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:00:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:00:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure id [2024-11-09 00:00:23,349 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2024-11-09 00:00:23,424 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:00:23,426 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:00:23,594 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-09 00:00:23,595 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:00:23,634 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:00:23,634 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:00:23,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:00:23 BoogieIcfgContainer [2024-11-09 00:00:23,635 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:00:23,636 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:00:23,636 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:00:23,650 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:00:23,650 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:00:23" (1/1) ... [2024-11-09 00:00:23,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:00:23,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:00:23,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2024-11-09 00:00:23,732 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-11-09 00:00:23,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 00:00:23,737 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:00:23,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:00:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:00:24,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:00:24,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:00:24,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-11-09 00:00:24,150 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-11-09 00:00:24,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 00:00:24,152 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:00:24,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:00:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:00:24,439 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 00:00:24,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:00:24,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2024-11-09 00:00:24,750 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2024-11-09 00:00:24,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 00:00:24,751 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:00:24,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:00:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:00:25,115 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 00:00:25,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:00:25,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 28 states and 34 transitions. [2024-11-09 00:00:25,583 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2024-11-09 00:00:25,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 00:00:25,584 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:00:25,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:00:25,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:00:25,849 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 00:00:26,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:00:26,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 26 states and 32 transitions. [2024-11-09 00:00:26,212 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2024-11-09 00:00:26,212 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 00:00:26,213 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2024-11-09 00:00:26,222 INFO L729 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-11-09 00:00:26,334 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-09 00:00:26,334 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2024-11-09 00:00:26,334 INFO L75 FloydHoareUtils]: For program point L17(line 17) no Hoare annotation was computed. [2024-11-09 00:00:26,334 INFO L77 FloydHoareUtils]: At program point L16(lines 16 18) the Hoare annotation is: (<= |ULTIMATE.start_main_~result~0#1| 5) [2024-11-09 00:00:26,335 INFO L77 FloydHoareUtils]: At program point L15(line 15) the Hoare annotation is: true [2024-11-09 00:00:26,335 INFO L77 FloydHoareUtils]: At program point L15-1(line 15) the Hoare annotation is: (<= |ULTIMATE.start_main_#t~ret6#1| 5) [2024-11-09 00:00:26,335 INFO L77 FloydHoareUtils]: At program point L13(lines 13 19) the Hoare annotation is: true [2024-11-09 00:00:26,335 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-09 00:00:26,335 INFO L77 FloydHoareUtils]: At program point idFINAL(lines 6 11) the Hoare annotation is: (<= |id_#res| 5) [2024-11-09 00:00:26,336 INFO L77 FloydHoareUtils]: At program point idEXIT(lines 6 11) the Hoare annotation is: (<= |id_#res| 5) [2024-11-09 00:00:26,336 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 6 11) the Hoare annotation is: true [2024-11-09 00:00:26,336 INFO L77 FloydHoareUtils]: At program point L8(line 8) the Hoare annotation is: true [2024-11-09 00:00:26,337 INFO L77 FloydHoareUtils]: At program point L7(line 7) the Hoare annotation is: true [2024-11-09 00:00:26,337 INFO L77 FloydHoareUtils]: At program point L8-1(line 8) the Hoare annotation is: true [2024-11-09 00:00:26,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:00:26 ImpRootNode [2024-11-09 00:00:26,355 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:00:26,356 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:00:26,356 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:00:26,357 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:00:26,357 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:00:23" (3/4) ... [2024-11-09 00:00:26,360 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 00:00:26,364 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2024-11-09 00:00:26,368 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-09 00:00:26,370 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 00:00:26,371 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 00:00:26,371 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 00:00:26,476 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_833f3204-3287-4283-a2b3-d6f6037d0557/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-09 00:00:26,476 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_833f3204-3287-4283-a2b3-d6f6037d0557/bin/ukojak-verify-ImItNfHLgk/witness.yml [2024-11-09 00:00:26,476 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:00:26,482 INFO L158 Benchmark]: Toolchain (without parser) took 3763.55ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 106.2MB in the beginning and 81.9MB in the end (delta: 24.3MB). Peak memory consumption was 53.7MB. Max. memory is 16.1GB. [2024-11-09 00:00:26,483 INFO L158 Benchmark]: CDTParser took 2.06ms. Allocated memory is still 111.1MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:00:26,483 INFO L158 Benchmark]: CACSL2BoogieTranslator took 397.79ms. Allocated memory is still 138.4MB. Free memory was 105.4MB in the beginning and 111.1MB in the end (delta: -5.7MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2024-11-09 00:00:26,483 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.24ms. Allocated memory is still 138.4MB. Free memory was 111.1MB in the beginning and 109.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:00:26,484 INFO L158 Benchmark]: Boogie Preprocessor took 59.28ms. Allocated memory is still 138.4MB. Free memory was 109.8MB in the beginning and 108.7MB in the end (delta: 1.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 00:00:26,484 INFO L158 Benchmark]: RCFGBuilder took 395.06ms. Allocated memory is still 138.4MB. Free memory was 108.7MB in the beginning and 97.6MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-09 00:00:26,485 INFO L158 Benchmark]: CodeCheck took 2719.57ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 97.6MB in the beginning and 86.1MB in the end (delta: 11.6MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. [2024-11-09 00:00:26,485 INFO L158 Benchmark]: Witness Printer took 120.27ms. Allocated memory is still 167.8MB. Free memory was 86.1MB in the beginning and 81.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 00:00:26,491 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 92 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 84 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 79 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 171 IncrementalHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 79 mSolverCounterUnsat, 52 mSDtfsCounter, 171 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 466 GetRequests, 416 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 652 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 118 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 39/48 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 - PositiveResult [Line: 17]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ProcedureContractResult [Line: 6]: Procedure Contract for id Derived contract for procedure id. Ensures: (\result <= 5) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.06ms. Allocated memory is still 111.1MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 397.79ms. Allocated memory is still 138.4MB. Free memory was 105.4MB in the beginning and 111.1MB in the end (delta: -5.7MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.24ms. Allocated memory is still 138.4MB. Free memory was 111.1MB in the beginning and 109.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 59.28ms. Allocated memory is still 138.4MB. Free memory was 109.8MB in the beginning and 108.7MB in the end (delta: 1.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 395.06ms. Allocated memory is still 138.4MB. Free memory was 108.7MB in the beginning and 97.6MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 2719.57ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 97.6MB in the beginning and 86.1MB in the end (delta: 11.6MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. * Witness Printer took 120.27ms. Allocated memory is still 167.8MB. Free memory was 86.1MB in the beginning and 81.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-09 00:00:26,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_833f3204-3287-4283-a2b3-d6f6037d0557/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 Result: TRUE