./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id2_b5_o10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_1e291fd8-6c84-4a70-8d55-5b4c13980f64/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e291fd8-6c84-4a70-8d55-5b4c13980f64/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e291fd8-6c84-4a70-8d55-5b4c13980f64/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e291fd8-6c84-4a70-8d55-5b4c13980f64/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id2_b5_o10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e291fd8-6c84-4a70-8d55-5b4c13980f64/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e291fd8-6c84-4a70-8d55-5b4c13980f64/bin/ukojak-verify-1t5iHCbJaC --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 8c08a983a7c0b08f878bb6cfb5a8d37d856d7302f69f84382c3f724537bcbd1e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:28:51,144 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:28:51,270 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e291fd8-6c84-4a70-8d55-5b4c13980f64/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-23 20:28:51,281 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:28:51,282 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:28:51,320 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:28:51,322 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:28:51,323 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:28:51,324 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:28:51,330 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:28:51,331 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:28:51,332 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:28:51,332 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:28:51,334 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:28:51,335 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:28:51,335 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:28:51,336 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:28:51,336 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:28:51,337 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:28:51,337 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:28:51,338 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:28:51,338 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:28:51,339 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:28:51,340 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:28:51,340 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:28:51,341 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:28:51,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:28:51,342 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:28:51,342 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:28:51,343 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:28:51,344 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:28:51,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:28:51,345 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:28:51,345 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_1e291fd8-6c84-4a70-8d55-5b4c13980f64/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e291fd8-6c84-4a70-8d55-5b4c13980f64/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c08a983a7c0b08f878bb6cfb5a8d37d856d7302f69f84382c3f724537bcbd1e [2023-11-23 20:28:51,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:28:51,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:28:51,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:28:51,743 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:28:51,744 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:28:51,745 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e291fd8-6c84-4a70-8d55-5b4c13980f64/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/recursive-simple/id2_b5_o10.c [2023-11-23 20:28:54,839 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:28:55,121 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:28:55,121 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e291fd8-6c84-4a70-8d55-5b4c13980f64/sv-benchmarks/c/recursive-simple/id2_b5_o10.c [2023-11-23 20:28:55,129 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e291fd8-6c84-4a70-8d55-5b4c13980f64/bin/ukojak-verify-1t5iHCbJaC/data/fc0edef4f/d34bf48a32b64c098a86f4149dbd1766/FLAG5bc9b882e [2023-11-23 20:28:55,145 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e291fd8-6c84-4a70-8d55-5b4c13980f64/bin/ukojak-verify-1t5iHCbJaC/data/fc0edef4f/d34bf48a32b64c098a86f4149dbd1766 [2023-11-23 20:28:55,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:28:55,149 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:28:55,151 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:28:55,151 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:28:55,157 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:28:55,158 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:28:55" (1/1) ... [2023-11-23 20:28:55,159 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e4bdf0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:55, skipping insertion in model container [2023-11-23 20:28:55,159 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:28:55" (1/1) ... [2023-11-23 20:28:55,180 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:28:55,376 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e291fd8-6c84-4a70-8d55-5b4c13980f64/sv-benchmarks/c/recursive-simple/id2_b5_o10.c[773,786] [2023-11-23 20:28:55,381 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:28:55,393 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:28:55,407 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e291fd8-6c84-4a70-8d55-5b4c13980f64/sv-benchmarks/c/recursive-simple/id2_b5_o10.c[773,786] [2023-11-23 20:28:55,408 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:28:55,423 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:28:55,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:55 WrapperNode [2023-11-23 20:28:55,424 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:28:55,425 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:28:55,425 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:28:55,425 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:28:55,433 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:55" (1/1) ... [2023-11-23 20:28:55,440 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:55" (1/1) ... [2023-11-23 20:28:55,457 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2023-11-23 20:28:55,457 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:28:55,458 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:28:55,458 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:28:55,458 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:28:55,468 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:55" (1/1) ... [2023-11-23 20:28:55,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:55" (1/1) ... [2023-11-23 20:28:55,469 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:55" (1/1) ... [2023-11-23 20:28:55,469 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:55" (1/1) ... [2023-11-23 20:28:55,472 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:55" (1/1) ... [2023-11-23 20:28:55,474 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:55" (1/1) ... [2023-11-23 20:28:55,475 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:55" (1/1) ... [2023-11-23 20:28:55,476 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:55" (1/1) ... [2023-11-23 20:28:55,478 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:28:55,479 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:28:55,479 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:28:55,479 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:28:55,480 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:55" (1/1) ... [2023-11-23 20:28:55,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:28:55,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e291fd8-6c84-4a70-8d55-5b4c13980f64/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:28:55,511 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e291fd8-6c84-4a70-8d55-5b4c13980f64/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:28:55,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e291fd8-6c84-4a70-8d55-5b4c13980f64/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:28:55,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:28:55,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:28:55,542 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2023-11-23 20:28:55,543 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2023-11-23 20:28:55,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:28:55,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:28:55,544 INFO L130 BoogieDeclarations]: Found specification of procedure id [2023-11-23 20:28:55,544 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2023-11-23 20:28:55,659 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:28:55,664 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:28:55,808 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:28:55,851 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:28:55,851 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:28:55,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:28:55 BoogieIcfgContainer [2023-11-23 20:28:55,853 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:28:55,854 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:28:55,854 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:28:55,864 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:28:55,865 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:28:55" (1/1) ... [2023-11-23 20:28:55,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:28:55,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:55,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2023-11-23 20:28:55,929 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2023-11-23 20:28:55,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 20:28:55,935 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:55,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:56,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:56,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:28:56,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:56,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2023-11-23 20:28:56,280 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2023-11-23 20:28:56,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 20:28:56,281 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:56,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:56,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:56,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:28:57,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:57,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 37 transitions. [2023-11-23 20:28:57,067 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2023-11-23 20:28:57,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-23 20:28:57,070 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:57,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:57,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:57,598 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:28:58,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:58,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 39 states and 48 transitions. [2023-11-23 20:28:58,243 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2023-11-23 20:28:58,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-23 20:28:58,245 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:58,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:58,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:58,799 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 20:28:59,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:59,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 46 states and 56 transitions. [2023-11-23 20:28:59,536 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2023-11-23 20:28:59,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-23 20:28:59,538 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:59,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:59,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:29:00,226 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-23 20:29:01,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:29:01,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 55 states and 66 transitions. [2023-11-23 20:29:01,240 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 66 transitions. [2023-11-23 20:29:01,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-23 20:29:01,242 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:29:01,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:29:01,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:29:01,858 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-23 20:29:02,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:29:02,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 59 states and 70 transitions. [2023-11-23 20:29:02,535 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2023-11-23 20:29:02,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-23 20:29:02,537 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:29:02,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:29:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:29:03,814 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-23 20:29:06,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:29:06,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 53 states and 60 transitions. [2023-11-23 20:29:06,129 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2023-11-23 20:29:06,130 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:29:06,131 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2023-11-23 20:29:06,140 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-23 20:29:06,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:29:06 ImpRootNode [2023-11-23 20:29:06,249 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:29:06,250 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:29:06,250 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:29:06,250 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:29:06,251 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:28:55" (3/4) ... [2023-11-23 20:29:06,253 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:29:06,257 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id2 [2023-11-23 20:29:06,257 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2023-11-23 20:29:06,264 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-23 20:29:06,265 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-23 20:29:06,265 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 20:29:06,265 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:29:06,373 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e291fd8-6c84-4a70-8d55-5b4c13980f64/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:29:06,373 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e291fd8-6c84-4a70-8d55-5b4c13980f64/bin/ukojak-verify-1t5iHCbJaC/witness.yml [2023-11-23 20:29:06,374 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:29:06,375 INFO L158 Benchmark]: Toolchain (without parser) took 11225.34ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 142.3MB in the beginning and 160.1MB in the end (delta: -17.8MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2023-11-23 20:29:06,375 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 134.2MB. Free memory is still 106.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:29:06,376 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.39ms. Allocated memory is still 172.0MB. Free memory was 142.1MB in the beginning and 136.7MB in the end (delta: 5.4MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2023-11-23 20:29:06,376 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.42ms. Allocated memory is still 172.0MB. Free memory was 136.7MB in the beginning and 135.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:29:06,377 INFO L158 Benchmark]: Boogie Preprocessor took 19.94ms. Allocated memory is still 172.0MB. Free memory was 135.1MB in the beginning and 134.6MB in the end (delta: 459.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:29:06,377 INFO L158 Benchmark]: RCFGBuilder took 374.37ms. Allocated memory is still 172.0MB. Free memory was 134.6MB in the beginning and 137.0MB in the end (delta: -2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 20:29:06,378 INFO L158 Benchmark]: CodeCheck took 10395.41ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 137.0MB in the beginning and 165.3MB in the end (delta: -28.2MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2023-11-23 20:29:06,378 INFO L158 Benchmark]: Witness Printer took 123.82ms. Allocated memory is still 207.6MB. Free memory was 165.3MB in the beginning and 160.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:29:06,385 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, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.2s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 273 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 100 mSDsluCounter, 331 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 174 mSDsCounter, 332 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 651 IncrementalHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 332 mSolverCounterUnsat, 157 mSDtfsCounter, 651 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1305 GetRequests, 1147 SyntacticMatches, 14 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7765 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 189 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 182 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 57/114 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: 27]: 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 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 134.2MB. Free memory is still 106.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.39ms. Allocated memory is still 172.0MB. Free memory was 142.1MB in the beginning and 136.7MB in the end (delta: 5.4MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.42ms. Allocated memory is still 172.0MB. Free memory was 136.7MB in the beginning and 135.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.94ms. Allocated memory is still 172.0MB. Free memory was 135.1MB in the beginning and 134.6MB in the end (delta: 459.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 374.37ms. Allocated memory is still 172.0MB. Free memory was 134.6MB in the beginning and 137.0MB in the end (delta: -2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 10395.41ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 137.0MB in the beginning and 165.3MB in the end (delta: -28.2MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. * Witness Printer took 123.82ms. Allocated memory is still 207.6MB. Free memory was 165.3MB in the beginning and 160.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-23 20:29:06,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e291fd8-6c84-4a70-8d55-5b4c13980f64/bin/ukojak-verify-1t5iHCbJaC/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