./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-dietlibc/strdup.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_b2edbb05-490b-4365-acfa-cba2213b5953/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2edbb05-490b-4365-acfa-cba2213b5953/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_b2edbb05-490b-4365-acfa-cba2213b5953/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2edbb05-490b-4365-acfa-cba2213b5953/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-dietlibc/strdup.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2edbb05-490b-4365-acfa-cba2213b5953/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_b2edbb05-490b-4365-acfa-cba2213b5953/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 f841d4506b3d54a4be8e374f288503808db05c122988e690b43155c57f381496 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:28:25,062 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:28:25,191 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2edbb05-490b-4365-acfa-cba2213b5953/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:28:25,202 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:28:25,203 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:28:25,252 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:28:25,253 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:28:25,254 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:28:25,255 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:28:25,260 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:28:25,261 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:28:25,261 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:28:25,262 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:28:25,264 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:28:25,264 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:28:25,265 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:28:25,265 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:28:25,266 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:28:25,266 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:28:25,267 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:28:25,267 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:28:25,268 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:28:25,269 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:28:25,269 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:28:25,270 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:28:25,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:28:25,272 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:28:25,272 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:28:25,273 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:28:25,273 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:28:25,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:28:25,275 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:28:25,275 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_b2edbb05-490b-4365-acfa-cba2213b5953/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2edbb05-490b-4365-acfa-cba2213b5953/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f841d4506b3d54a4be8e374f288503808db05c122988e690b43155c57f381496 [2023-11-21 18:28:25,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:28:25,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:28:25,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:28:25,712 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:28:25,713 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:28:25,714 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2edbb05-490b-4365-acfa-cba2213b5953/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/termination-dietlibc/strdup.i [2023-11-21 18:28:28,906 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:28:29,187 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:28:29,190 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2edbb05-490b-4365-acfa-cba2213b5953/sv-benchmarks/c/termination-dietlibc/strdup.i [2023-11-21 18:28:29,209 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2edbb05-490b-4365-acfa-cba2213b5953/bin/ukojak-verify-i0I2FZA1j2/data/980c6b477/ad6ed85c4af644baa23893c3c695f421/FLAG515847922 [2023-11-21 18:28:29,225 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2edbb05-490b-4365-acfa-cba2213b5953/bin/ukojak-verify-i0I2FZA1j2/data/980c6b477/ad6ed85c4af644baa23893c3c695f421 [2023-11-21 18:28:29,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:28:29,229 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:28:29,256 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:28:29,257 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:28:29,260 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:28:29,261 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:28:29" (1/1) ... [2023-11-21 18:28:29,262 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30375b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:28:29, skipping insertion in model container [2023-11-21 18:28:29,262 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:28:29" (1/1) ... [2023-11-21 18:28:29,313 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:28:29,627 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:28:29,641 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:28:29,716 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:28:29,760 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:28:29,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:28:29 WrapperNode [2023-11-21 18:28:29,760 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:28:29,762 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:28:29,762 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:28:29,762 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:28:29,770 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:28:29" (1/1) ... [2023-11-21 18:28:29,788 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:28:29" (1/1) ... [2023-11-21 18:28:29,822 INFO L138 Inliner]: procedures = 116, calls = 13, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 86 [2023-11-21 18:28:29,822 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:28:29,823 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:28:29,823 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:28:29,824 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:28:29,834 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:28:29" (1/1) ... [2023-11-21 18:28:29,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:28:29" (1/1) ... [2023-11-21 18:28:29,850 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:28:29" (1/1) ... [2023-11-21 18:28:29,863 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:28:29" (1/1) ... [2023-11-21 18:28:29,870 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:28:29" (1/1) ... [2023-11-21 18:28:29,873 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:28:29" (1/1) ... [2023-11-21 18:28:29,890 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:28:29" (1/1) ... [2023-11-21 18:28:29,892 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:28:29" (1/1) ... [2023-11-21 18:28:29,895 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:28:29,896 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:28:29,896 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:28:29,896 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:28:29,897 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:28:29" (1/1) ... [2023-11-21 18:28:29,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:28:29,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2edbb05-490b-4365-acfa-cba2213b5953/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:28:29,932 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2edbb05-490b-4365-acfa-cba2213b5953/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:28:29,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2edbb05-490b-4365-acfa-cba2213b5953/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:28:29,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 18:28:29,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 18:28:29,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 18:28:29,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:28:29,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:28:29,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:28:29,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:28:30,065 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:28:30,066 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:28:30,323 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:28:30,344 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:28:30,344 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 18:28:30,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:28:30 BoogieIcfgContainer [2023-11-21 18:28:30,346 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:28:30,347 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:28:30,347 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:28:30,355 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:28:30,356 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:28:30" (1/1) ... [2023-11-21 18:28:30,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:28:30,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:28:30,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2023-11-21 18:28:30,424 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2023-11-21 18:28:30,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 18:28:30,426 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:28:30,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:28:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:28:30,596 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 18:28:30,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:28:30,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 17 states and 23 transitions. [2023-11-21 18:28:30,625 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2023-11-21 18:28:30,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 18:28:30,625 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:28:30,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:28:30,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:28:30,675 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 18:28:30,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:28:30,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2023-11-21 18:28:30,747 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2023-11-21 18:28:30,748 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 18:28:30,748 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2023-11-21 18:28:30,761 INFO L751 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2023-11-21 18:28:30,788 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:28:30,793 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:28:30,794 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:28:30,794 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:28:30,795 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:28:30,795 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:28:30,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:28:30 ImpRootNode [2023-11-21 18:28:30,795 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:28:30,796 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:28:30,797 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:28:30,797 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:28:30,797 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:28:30" (3/4) ... [2023-11-21 18:28:30,802 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 18:28:30,813 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-21 18:28:30,814 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-21 18:28:30,814 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-21 18:28:30,814 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 18:28:30,938 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2edbb05-490b-4365-acfa-cba2213b5953/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:28:30,938 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2edbb05-490b-4365-acfa-cba2213b5953/bin/ukojak-verify-i0I2FZA1j2/witness.yml [2023-11-21 18:28:30,938 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:28:30,939 INFO L158 Benchmark]: Toolchain (without parser) took 1710.26ms. Allocated memory was 132.1MB in the beginning and 169.9MB in the end (delta: 37.7MB). Free memory was 64.7MB in the beginning and 109.9MB in the end (delta: -45.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:28:30,940 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 132.1MB. Free memory is still 105.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:28:30,940 INFO L158 Benchmark]: CACSL2BoogieTranslator took 504.53ms. Allocated memory is still 169.9MB. Free memory was 140.7MB in the beginning and 126.0MB in the end (delta: 14.7MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2023-11-21 18:28:30,940 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.76ms. Allocated memory is still 169.9MB. Free memory was 126.0MB in the beginning and 123.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:28:30,941 INFO L158 Benchmark]: Boogie Preprocessor took 71.97ms. Allocated memory is still 169.9MB. Free memory was 123.9MB in the beginning and 122.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:28:30,941 INFO L158 Benchmark]: RCFGBuilder took 450.37ms. Allocated memory is still 169.9MB. Free memory was 122.3MB in the beginning and 133.9MB in the end (delta: -11.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 18:28:30,942 INFO L158 Benchmark]: CodeCheck took 448.35ms. Allocated memory is still 169.9MB. Free memory was 133.9MB in the beginning and 115.9MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-21 18:28:30,942 INFO L158 Benchmark]: Witness Printer took 141.91ms. Allocated memory is still 169.9MB. Free memory was 115.0MB in the beginning and 109.9MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:28:30,945 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 1 procedures, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24 IncrementalHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 4 mSDtfsCounter, 24 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - PositiveResult [Line: 530]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 530]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 514]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 511]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 520]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 511]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 526]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 517]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 132.1MB. Free memory is still 105.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 504.53ms. Allocated memory is still 169.9MB. Free memory was 140.7MB in the beginning and 126.0MB in the end (delta: 14.7MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.76ms. Allocated memory is still 169.9MB. Free memory was 126.0MB in the beginning and 123.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.97ms. Allocated memory is still 169.9MB. Free memory was 123.9MB in the beginning and 122.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 450.37ms. Allocated memory is still 169.9MB. Free memory was 122.3MB in the beginning and 133.9MB in the end (delta: -11.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 448.35ms. Allocated memory is still 169.9MB. Free memory was 133.9MB in the beginning and 115.9MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 141.91ms. Allocated memory is still 169.9MB. Free memory was 115.0MB in the beginning and 109.9MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-21 18:28:30,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2edbb05-490b-4365-acfa-cba2213b5953/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE