./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_i15_o15-2.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_311d7d2d-d3c1-4368-9fff-cd020d956227/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_311d7d2d-d3c1-4368-9fff-cd020d956227/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_311d7d2d-d3c1-4368-9fff-cd020d956227/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_311d7d2d-d3c1-4368-9fff-cd020d956227/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i15_o15-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_311d7d2d-d3c1-4368-9fff-cd020d956227/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_311d7d2d-d3c1-4368-9fff-cd020d956227/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 109f1b0f7b496206cc9c53b0a3b6a7c393044a874053b245259453c5fb39b930 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:38:52,207 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:38:52,298 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_311d7d2d-d3c1-4368-9fff-cd020d956227/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-09 00:38:52,303 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:38:52,304 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:38:52,338 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:38:52,339 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:38:52,339 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:38:52,343 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:38:52,343 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:38:52,343 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:38:52,344 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:38:52,344 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:38:52,345 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:38:52,345 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:38:52,345 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:38:52,348 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:38:52,351 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:38:52,352 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:38:52,352 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:38:52,352 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:38:52,353 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:38:52,353 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:38:52,353 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:38:52,354 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:38:52,354 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:38:52,354 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:38:52,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:38:52,355 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:38:52,355 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:38:52,355 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:38:52,356 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:38:52,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:38:52,356 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_311d7d2d-d3c1-4368-9fff-cd020d956227/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_311d7d2d-d3c1-4368-9fff-cd020d956227/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 109f1b0f7b496206cc9c53b0a3b6a7c393044a874053b245259453c5fb39b930 [2024-11-09 00:38:52,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:38:52,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:38:52,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:38:52,685 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:38:52,686 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:38:52,687 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_311d7d2d-d3c1-4368-9fff-cd020d956227/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/recursive-simple/id_i15_o15-2.c Unable to find full path for "g++" [2024-11-09 00:38:54,968 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:38:55,205 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:38:55,205 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_311d7d2d-d3c1-4368-9fff-cd020d956227/sv-benchmarks/c/recursive-simple/id_i15_o15-2.c [2024-11-09 00:38:55,213 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_311d7d2d-d3c1-4368-9fff-cd020d956227/bin/ukojak-verify-ImItNfHLgk/data/681967072/08a3872bda9b44459ca5f71c33ec3710/FLAG8735e33dd [2024-11-09 00:38:55,546 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_311d7d2d-d3c1-4368-9fff-cd020d956227/bin/ukojak-verify-ImItNfHLgk/data/681967072/08a3872bda9b44459ca5f71c33ec3710 [2024-11-09 00:38:55,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:38:55,550 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:38:55,552 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:38:55,552 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:38:55,558 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:38:55,559 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:38:55" (1/1) ... [2024-11-09 00:38:55,561 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@106348e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:38:55, skipping insertion in model container [2024-11-09 00:38:55,561 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:38:55" (1/1) ... [2024-11-09 00:38:55,583 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:38:55,775 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_311d7d2d-d3c1-4368-9fff-cd020d956227/sv-benchmarks/c/recursive-simple/id_i15_o15-2.c[454,467] [2024-11-09 00:38:55,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:38:55,792 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:38:55,805 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_311d7d2d-d3c1-4368-9fff-cd020d956227/sv-benchmarks/c/recursive-simple/id_i15_o15-2.c[454,467] [2024-11-09 00:38:55,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:38:55,826 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:38:55,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:38:55 WrapperNode [2024-11-09 00:38:55,827 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:38:55,828 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:38:55,829 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:38:55,829 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:38:55,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:38:55" (1/1) ... [2024-11-09 00:38:55,845 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:38:55" (1/1) ... [2024-11-09 00:38:55,865 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2024-11-09 00:38:55,866 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:38:55,867 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:38:55,867 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:38:55,867 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:38:55,878 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:38:55" (1/1) ... [2024-11-09 00:38:55,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:38:55" (1/1) ... [2024-11-09 00:38:55,880 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:38:55" (1/1) ... [2024-11-09 00:38:55,880 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:38:55" (1/1) ... [2024-11-09 00:38:55,883 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:38:55" (1/1) ... [2024-11-09 00:38:55,885 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:38:55" (1/1) ... [2024-11-09 00:38:55,886 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:38:55" (1/1) ... [2024-11-09 00:38:55,887 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:38:55" (1/1) ... [2024-11-09 00:38:55,888 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:38:55,889 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:38:55,890 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:38:55,890 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:38:55,891 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:38:55" (1/1) ... [2024-11-09 00:38:55,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:38:55,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_311d7d2d-d3c1-4368-9fff-cd020d956227/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:38:55,928 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_311d7d2d-d3c1-4368-9fff-cd020d956227/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:38:55,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_311d7d2d-d3c1-4368-9fff-cd020d956227/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:38:55,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:38:55,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:38:55,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:38:55,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:38:55,960 INFO L130 BoogieDeclarations]: Found specification of procedure id [2024-11-09 00:38:55,960 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2024-11-09 00:38:56,019 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:38:56,021 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:38:56,126 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-09 00:38:56,126 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:38:56,168 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:38:56,168 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:38:56,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:38:56 BoogieIcfgContainer [2024-11-09 00:38:56,169 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:38:56,170 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:38:56,171 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:38:56,182 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:38:56,182 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:38:56" (1/1) ... [2024-11-09 00:38:56,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:38:56,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:38:56,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2024-11-09 00:38:56,259 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-11-09 00:38:56,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 00:38:56,264 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:38:56,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:38:56,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:38:56,655 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 00:38:56,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:38:56,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 18 transitions. [2024-11-09 00:38:56,802 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-09 00:38:56,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 00:38:56,802 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:38:56,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:38:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:38:57,042 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 00:38:57,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:38:57,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 22 transitions. [2024-11-09 00:38:57,235 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2024-11-09 00:38:57,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 00:38:57,239 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:38:57,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:38:57,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:38:57,568 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 00:38:57,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:38:57,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 22 states and 25 transitions. [2024-11-09 00:38:57,829 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2024-11-09 00:38:57,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 00:38:57,830 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:38:57,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:38:57,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:38:58,086 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 20 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 00:38:58,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:38:58,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 25 states and 29 transitions. [2024-11-09 00:38:58,367 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2024-11-09 00:38:58,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 00:38:58,368 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:38:58,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:38:58,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:38:58,627 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 5 proven. 33 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 00:38:58,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:38:58,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 28 states and 32 transitions. [2024-11-09 00:38:58,906 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2024-11-09 00:38:58,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 00:38:58,908 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:38:58,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:38:58,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:38:59,208 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 7 proven. 49 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 00:38:59,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:38:59,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 31 states and 35 transitions. [2024-11-09 00:38:59,511 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2024-11-09 00:38:59,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-09 00:38:59,512 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:38:59,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:38:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:38:59,760 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 9 proven. 68 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-09 00:39:00,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:39:00,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 34 states and 38 transitions. [2024-11-09 00:39:00,052 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2024-11-09 00:39:00,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-09 00:39:00,053 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:39:00,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:39:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:39:00,291 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 11 proven. 90 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-09 00:39:00,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:39:00,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 37 states and 41 transitions. [2024-11-09 00:39:00,579 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2024-11-09 00:39:00,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-09 00:39:00,581 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:39:00,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:39:00,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:39:00,828 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 13 proven. 115 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-09 00:39:01,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:39:01,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 40 states and 44 transitions. [2024-11-09 00:39:01,148 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2024-11-09 00:39:01,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 00:39:01,149 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:39:01,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:39:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:39:01,422 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 15 proven. 143 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-09 00:39:01,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:39:01,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 43 states and 47 transitions. [2024-11-09 00:39:01,749 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2024-11-09 00:39:01,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 00:39:01,750 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:39:01,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:39:01,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:39:02,048 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 17 proven. 174 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-11-09 00:39:02,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:39:02,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 46 states and 50 transitions. [2024-11-09 00:39:02,457 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2024-11-09 00:39:02,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 00:39:02,458 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:39:02,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:39:02,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:39:02,808 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 19 proven. 208 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2024-11-09 00:39:03,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:39:03,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 49 states and 53 transitions. [2024-11-09 00:39:03,179 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2024-11-09 00:39:03,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 00:39:03,183 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:39:03,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:39:03,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:39:03,529 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 21 proven. 245 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-11-09 00:39:03,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:39:03,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 52 states and 56 transitions. [2024-11-09 00:39:03,929 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2024-11-09 00:39:03,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-09 00:39:03,930 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:39:03,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:39:03,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:39:04,280 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 23 proven. 285 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-11-09 00:39:04,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:39:04,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 55 states and 59 transitions. [2024-11-09 00:39:04,710 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2024-11-09 00:39:04,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-09 00:39:04,711 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:39:04,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:39:04,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:39:05,097 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 25 proven. 328 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2024-11-09 00:39:05,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:39:05,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 58 states and 62 transitions. [2024-11-09 00:39:05,568 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2024-11-09 00:39:05,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-09 00:39:05,570 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:39:05,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:39:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:39:05,617 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:39:05,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:39:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:39:05,742 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:39:05,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:39:05,812 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 16 iterations. [2024-11-09 00:39:05,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:39:05 ImpRootNode [2024-11-09 00:39:05,864 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:39:05,865 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:39:05,865 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:39:05,865 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:39:05,867 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:38:56" (3/4) ... [2024-11-09 00:39:05,868 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 00:39:05,954 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_311d7d2d-d3c1-4368-9fff-cd020d956227/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-09 00:39:05,955 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:39:05,955 INFO L158 Benchmark]: Toolchain (without parser) took 10405.18ms. Allocated memory was 144.7MB in the beginning and 262.1MB in the end (delta: 117.4MB). Free memory was 114.0MB in the beginning and 115.9MB in the end (delta: -1.9MB). Peak memory consumption was 117.9MB. Max. memory is 16.1GB. [2024-11-09 00:39:05,956 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 113.2MB. Free memory is still 68.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:39:05,956 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.95ms. Allocated memory is still 144.7MB. Free memory was 113.7MB in the beginning and 101.8MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 00:39:05,957 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.49ms. Allocated memory is still 144.7MB. Free memory was 101.8MB in the beginning and 100.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:39:05,957 INFO L158 Benchmark]: Boogie Preprocessor took 21.84ms. Allocated memory is still 144.7MB. Free memory was 100.3MB in the beginning and 99.4MB in the end (delta: 951.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:39:05,957 INFO L158 Benchmark]: RCFGBuilder took 280.21ms. Allocated memory is still 144.7MB. Free memory was 99.4MB in the beginning and 89.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 00:39:05,960 INFO L158 Benchmark]: CodeCheck took 9694.16ms. Allocated memory was 144.7MB in the beginning and 262.1MB in the end (delta: 117.4MB). Free memory was 89.4MB in the beginning and 119.0MB in the end (delta: -29.6MB). Peak memory consumption was 88.5MB. Max. memory is 16.1GB. [2024-11-09 00:39:05,961 INFO L158 Benchmark]: Witness Printer took 89.88ms. Allocated memory is still 262.1MB. Free memory was 119.0MB in the beginning and 115.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 00:39:05,962 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: 9.6s, OverallIterations: 16, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 944 SdHoareTripleChecker+Valid, 8.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 517 mSDsluCounter, 1147 SdHoareTripleChecker+Invalid, 6.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 939 mSDsCounter, 576 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3958 IncrementalHoareTripleChecker+Invalid, 4534 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 576 mSolverCounterUnsat, 208 mSDtfsCounter, 3958 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9233 GetRequests, 8715 SyntacticMatches, 424 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3050 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 864 NumberOfCodeBlocks, 864 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 750 ConstructedInterpolants, 0 QuantifiedInterpolants, 2138 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 1 PerfectInterpolantSequences, 1379/3150 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: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L12] int input = 15; VAL [input=15] [L13] CALL, EXPR id(input) VAL [\old(x)=15] [L7] COND FALSE !(x==0) VAL [\old(x)=15, x=15] [L8] CALL, EXPR id(x-1) VAL [\old(x)=14] [L7] COND FALSE !(x==0) VAL [\old(x)=14, x=14] [L8] CALL, EXPR id(x-1) VAL [\old(x)=13] [L7] COND FALSE !(x==0) VAL [\old(x)=13, x=13] [L8] CALL, EXPR id(x-1) VAL [\old(x)=12] [L7] COND FALSE !(x==0) VAL [\old(x)=12, x=12] [L8] CALL, EXPR id(x-1) VAL [\old(x)=11] [L7] COND FALSE !(x==0) VAL [\old(x)=11, x=11] [L8] CALL, EXPR id(x-1) VAL [\old(x)=10] [L7] COND FALSE !(x==0) VAL [\old(x)=10, x=10] [L8] CALL, EXPR id(x-1) VAL [\old(x)=9] [L7] COND FALSE !(x==0) VAL [\old(x)=9, x=9] [L8] CALL, EXPR id(x-1) VAL [\old(x)=8] [L7] COND FALSE !(x==0) VAL [\old(x)=8, x=8] [L8] CALL, EXPR id(x-1) VAL [\old(x)=7] [L7] COND FALSE !(x==0) VAL [\old(x)=7, x=7] [L8] CALL, EXPR id(x-1) VAL [\old(x)=6] [L7] COND FALSE !(x==0) VAL [\old(x)=6, x=6] [L8] CALL, EXPR id(x-1) VAL [\old(x)=5] [L7] COND FALSE !(x==0) VAL [\old(x)=5, x=5] [L8] CALL, EXPR id(x-1) VAL [\old(x)=4] [L7] COND FALSE !(x==0) VAL [\old(x)=4, x=4] [L8] CALL, EXPR id(x-1) VAL [\old(x)=3] [L7] COND FALSE !(x==0) VAL [\old(x)=3, x=3] [L8] CALL, EXPR id(x-1) VAL [\old(x)=2] [L7] COND FALSE !(x==0) VAL [\old(x)=2, x=2] [L8] CALL, EXPR id(x-1) VAL [\old(x)=1] [L7] COND FALSE !(x==0) VAL [\old(x)=1, x=1] [L8] CALL, EXPR id(x-1) VAL [\old(x)=0] [L7] COND TRUE x==0 [L7] return 0; VAL [\old(x)=0, \result=0] [L8] RET, EXPR id(x-1) VAL [\old(x)=1, x=1] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=2, x=2] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=3, x=3] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=4, x=4] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=5, x=5] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=6, x=6] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=7, x=7] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=8, x=8] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=9, x=9] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=10, x=10] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=11, x=11] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=12, x=12] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=13, x=13] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=14, x=14] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=15, x=15] [L8] return id(x-1) + 1; [L13] RET, EXPR id(input) VAL [input=15] [L13] int result = id(input); [L14] COND TRUE result == 15 VAL [input=15] [L15] reach_error() VAL [input=15] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 113.2MB. Free memory is still 68.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.95ms. Allocated memory is still 144.7MB. Free memory was 113.7MB in the beginning and 101.8MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.49ms. Allocated memory is still 144.7MB. Free memory was 101.8MB in the beginning and 100.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.84ms. Allocated memory is still 144.7MB. Free memory was 100.3MB in the beginning and 99.4MB in the end (delta: 951.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 280.21ms. Allocated memory is still 144.7MB. Free memory was 99.4MB in the beginning and 89.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 9694.16ms. Allocated memory was 144.7MB in the beginning and 262.1MB in the end (delta: 117.4MB). Free memory was 89.4MB in the beginning and 119.0MB in the end (delta: -29.6MB). Peak memory consumption was 88.5MB. Max. memory is 16.1GB. * Witness Printer took 89.88ms. Allocated memory is still 262.1MB. Free memory was 119.0MB in the beginning and 115.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-09 00:39:05,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_311d7d2d-d3c1-4368-9fff-cd020d956227/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