./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/joey.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e059f3b-44a3-4116-a25b-96874477ea88/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e059f3b-44a3-4116-a25b-96874477ea88/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e059f3b-44a3-4116-a25b-96874477ea88/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e059f3b-44a3-4116-a25b-96874477ea88/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/joey.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e059f3b-44a3-4116-a25b-96874477ea88/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e059f3b-44a3-4116-a25b-96874477ea88/bin/ukojak-verify-i0I2FZA1j2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b8eecb1f582817a24edea1132ecb15ddc358f67da7ed612a076c099e943ee704 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:30:34,135 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:30:34,229 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e059f3b-44a3-4116-a25b-96874477ea88/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:30:34,236 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:30:34,237 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:30:34,285 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:30:34,286 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:30:34,287 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:30:34,288 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:30:34,289 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:30:34,290 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:30:34,290 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:30:34,291 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:30:34,292 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:30:34,292 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:30:34,293 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:30:34,294 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:30:34,294 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:30:34,295 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:30:34,295 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:30:34,296 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:30:34,297 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:30:34,298 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:30:34,298 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:30:34,299 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:30:34,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:30:34,300 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:30:34,300 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:30:34,301 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:30:34,301 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:30:34,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:30:34,302 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:30:34,303 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_2e059f3b-44a3-4116-a25b-96874477ea88/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e059f3b-44a3-4116-a25b-96874477ea88/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8eecb1f582817a24edea1132ecb15ddc358f67da7ed612a076c099e943ee704 [2023-11-21 18:30:34,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:30:34,721 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:30:34,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:30:34,727 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:30:34,727 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:30:34,729 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e059f3b-44a3-4116-a25b-96874477ea88/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/termination-crafted-lit/joey.c [2023-11-21 18:30:38,266 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:30:38,475 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:30:38,476 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e059f3b-44a3-4116-a25b-96874477ea88/sv-benchmarks/c/termination-crafted-lit/joey.c [2023-11-21 18:30:38,486 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e059f3b-44a3-4116-a25b-96874477ea88/bin/ukojak-verify-i0I2FZA1j2/data/ab232f2b3/32fbf575bfc1468e8b16357da59d1b56/FLAGe5ba2d0c9 [2023-11-21 18:30:38,505 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e059f3b-44a3-4116-a25b-96874477ea88/bin/ukojak-verify-i0I2FZA1j2/data/ab232f2b3/32fbf575bfc1468e8b16357da59d1b56 [2023-11-21 18:30:38,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:30:38,510 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:30:38,512 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:30:38,513 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:30:38,526 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:30:38,531 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:30:38" (1/1) ... [2023-11-21 18:30:38,532 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40371b72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:38, skipping insertion in model container [2023-11-21 18:30:38,534 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:30:38" (1/1) ... [2023-11-21 18:30:38,567 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:30:38,828 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:30:38,835 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:30:38,855 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:30:38,875 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:30:38,876 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:38 WrapperNode [2023-11-21 18:30:38,876 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:30:38,878 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:30:38,878 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:30:38,878 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:30:38,889 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:38" (1/1) ... [2023-11-21 18:30:38,894 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:38" (1/1) ... [2023-11-21 18:30:38,915 INFO L138 Inliner]: procedures = 5, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11 [2023-11-21 18:30:38,916 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:30:38,917 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:30:38,917 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:30:38,918 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:30:38,930 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:38" (1/1) ... [2023-11-21 18:30:38,930 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:38" (1/1) ... [2023-11-21 18:30:38,943 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:38" (1/1) ... [2023-11-21 18:30:38,962 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:38" (1/1) ... [2023-11-21 18:30:38,968 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:38" (1/1) ... [2023-11-21 18:30:38,970 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:38" (1/1) ... [2023-11-21 18:30:38,972 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:38" (1/1) ... [2023-11-21 18:30:38,972 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:38" (1/1) ... [2023-11-21 18:30:38,974 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:30:38,975 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:30:38,975 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:30:38,976 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:30:38,977 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:38" (1/1) ... [2023-11-21 18:30:38,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:30:38,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e059f3b-44a3-4116-a25b-96874477ea88/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:30:39,014 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e059f3b-44a3-4116-a25b-96874477ea88/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:30:39,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e059f3b-44a3-4116-a25b-96874477ea88/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:30:39,067 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2023-11-21 18:30:39,067 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2023-11-21 18:30:39,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:30:39,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:30:39,135 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:30:39,137 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:30:39,326 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:30:39,350 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:30:39,350 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:30:39,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:30:39 BoogieIcfgContainer [2023-11-21 18:30:39,352 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:30:39,354 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:30:39,354 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:30:39,367 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:30:39,367 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:30:39" (1/1) ... [2023-11-21 18:30:39,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:30:39,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:30:39,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 31 states and 35 transitions. [2023-11-21 18:30:39,445 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2023-11-21 18:30:39,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:30:39,450 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:30:39,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:30:39,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:30:39,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:30:39,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:30:39,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 30 states and 34 transitions. [2023-11-21 18:30:39,848 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2023-11-21 18:30:39,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:30:39,849 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:30:39,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:30:39,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:30:39,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:30:39,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:30:39,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 29 states and 33 transitions. [2023-11-21 18:30:39,914 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2023-11-21 18:30:39,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:30:39,915 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:30:39,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:30:39,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:30:40,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:30:40,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:30:40,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 34 states and 42 transitions. [2023-11-21 18:30:40,501 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2023-11-21 18:30:40,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:30:40,502 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:30:40,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:30:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:30:40,514 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:30:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:30:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:30:40,582 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:30:40,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:30:40,606 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2023-11-21 18:30:40,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:30:40 ImpRootNode [2023-11-21 18:30:40,640 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:30:40,644 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:30:40,644 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:30:40,645 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:30:40,645 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:30:39" (3/4) ... [2023-11-21 18:30:40,649 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-21 18:30:40,796 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e059f3b-44a3-4116-a25b-96874477ea88/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:30:40,796 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:30:40,798 INFO L158 Benchmark]: Toolchain (without parser) took 2287.58ms. Allocated memory is still 167.8MB. Free memory was 106.7MB in the beginning and 137.0MB in the end (delta: -30.3MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2023-11-21 18:30:40,799 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 125.8MB. Free memory was 96.0MB in the beginning and 96.0MB in the end (delta: 16.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:30:40,799 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.23ms. Allocated memory is still 167.8MB. Free memory was 106.5MB in the beginning and 97.1MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 18:30:40,800 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.62ms. Allocated memory is still 167.8MB. Free memory was 97.1MB in the beginning and 95.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:30:40,801 INFO L158 Benchmark]: Boogie Preprocessor took 57.19ms. Allocated memory is still 167.8MB. Free memory was 95.8MB in the beginning and 139.4MB in the end (delta: -43.6MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2023-11-21 18:30:40,801 INFO L158 Benchmark]: RCFGBuilder took 377.56ms. Allocated memory is still 167.8MB. Free memory was 139.4MB in the beginning and 128.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 18:30:40,802 INFO L158 Benchmark]: CodeCheck took 1286.61ms. Allocated memory is still 167.8MB. Free memory was 128.2MB in the beginning and 87.2MB in the end (delta: 41.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-21 18:30:40,803 INFO L158 Benchmark]: Witness Printer took 152.23ms. Allocated memory is still 167.8MB. Free memory was 87.2MB in the beginning and 137.0MB in the end (delta: -49.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:30:40,813 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, 31 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 49 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 75 IncrementalHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 28 mSDtfsCounter, 75 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 153 GetRequests, 134 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 46 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int x = __VERIFIER_nondet_int(); [L21] int y; VAL [x=2147483647] [L22] CALL rec(x) VAL [\old(x)=2147483647] [L10] COND FALSE !(x <= 0) VAL [\old(x)=2147483647, x=2147483647] [L12] COND FALSE !(x%2 == 0) VAL [\old(x)=2147483647, x=2147483647] [L15] ++x VAL [\old(x)=2147483647, x=2147483647] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 125.8MB. Free memory was 96.0MB in the beginning and 96.0MB in the end (delta: 16.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 364.23ms. Allocated memory is still 167.8MB. Free memory was 106.5MB in the beginning and 97.1MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.62ms. Allocated memory is still 167.8MB. Free memory was 97.1MB in the beginning and 95.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.19ms. Allocated memory is still 167.8MB. Free memory was 95.8MB in the beginning and 139.4MB in the end (delta: -43.6MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * RCFGBuilder took 377.56ms. Allocated memory is still 167.8MB. Free memory was 139.4MB in the beginning and 128.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1286.61ms. Allocated memory is still 167.8MB. Free memory was 128.2MB in the beginning and 87.2MB in the end (delta: 41.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 152.23ms. Allocated memory is still 167.8MB. Free memory was 87.2MB in the beginning and 137.0MB in the end (delta: -49.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-21 18:30:40,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e059f3b-44a3-4116-a25b-96874477ea88/bin/ukojak-verify-i0I2FZA1j2/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(OVERFLOW)