./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/float-benchs/interpolation2.c.p+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_66788344-7308-4f6f-9aa8-bcb99a103bee/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66788344-7308-4f6f-9aa8-bcb99a103bee/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_66788344-7308-4f6f-9aa8-bcb99a103bee/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66788344-7308-4f6f-9aa8-bcb99a103bee/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation2.c.p+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66788344-7308-4f6f-9aa8-bcb99a103bee/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66788344-7308-4f6f-9aa8-bcb99a103bee/bin/ukojak-verify-ImItNfHLgk --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 32bit --witnessprinter.graph.data.programhash 5c5b05c4ae88eb6dc9b39e487669b31df0ffdcd18c2998e1a9c5cebc84002587 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:50:42,506 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:50:42,583 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66788344-7308-4f6f-9aa8-bcb99a103bee/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-11-08 22:50:42,590 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:50:42,591 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 22:50:42,614 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:50:42,615 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:50:42,615 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:50:42,616 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:50:42,617 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:50:42,617 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:50:42,618 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:50:42,618 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 22:50:42,618 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:50:42,619 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 22:50:42,619 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:50:42,620 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:50:42,620 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:50:42,620 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:50:42,621 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:50:42,621 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 22:50:42,622 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 22:50:42,622 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 22:50:42,623 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:50:42,623 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:50:42,624 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:50:42,624 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:50:42,624 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:50:42,625 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:50:42,625 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:50:42,626 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:50:42,626 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:50:42,626 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:50:42,626 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 22:50:42,627 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:50:42,627 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_66788344-7308-4f6f-9aa8-bcb99a103bee/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66788344-7308-4f6f-9aa8-bcb99a103bee/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c5b05c4ae88eb6dc9b39e487669b31df0ffdcd18c2998e1a9c5cebc84002587 [2024-11-08 22:50:42,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:50:42,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:50:42,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:50:42,954 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:50:42,955 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:50:42,957 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66788344-7308-4f6f-9aa8-bcb99a103bee/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/float-benchs/interpolation2.c.p+cfa-reducer.c Unable to find full path for "g++" [2024-11-08 22:50:45,037 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:50:45,268 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:50:45,269 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66788344-7308-4f6f-9aa8-bcb99a103bee/sv-benchmarks/c/float-benchs/interpolation2.c.p+cfa-reducer.c [2024-11-08 22:50:45,280 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66788344-7308-4f6f-9aa8-bcb99a103bee/bin/ukojak-verify-ImItNfHLgk/data/e9d7a45f1/960e7239aef84c99ba15bf55e8e6187f/FLAGc78fc5e7d [2024-11-08 22:50:45,301 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66788344-7308-4f6f-9aa8-bcb99a103bee/bin/ukojak-verify-ImItNfHLgk/data/e9d7a45f1/960e7239aef84c99ba15bf55e8e6187f [2024-11-08 22:50:45,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:50:45,306 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:50:45,307 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:50:45,307 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:50:45,315 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:50:45,315 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:50:45" (1/1) ... [2024-11-08 22:50:45,317 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3419f7f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:45, skipping insertion in model container [2024-11-08 22:50:45,317 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:50:45" (1/1) ... [2024-11-08 22:50:45,346 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:50:45,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:50:45,591 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:50:45,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:50:45,634 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:50:45,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:45 WrapperNode [2024-11-08 22:50:45,635 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:50:45,636 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:50:45,636 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:50:45,636 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:50:45,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:45" (1/1) ... [2024-11-08 22:50:45,652 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:45" (1/1) ... [2024-11-08 22:50:45,676 INFO L138 Inliner]: procedures = 18, calls = 56, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 136 [2024-11-08 22:50:45,677 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:50:45,677 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:50:45,677 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:50:45,678 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:50:45,687 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:45" (1/1) ... [2024-11-08 22:50:45,687 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:45" (1/1) ... [2024-11-08 22:50:45,690 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:45" (1/1) ... [2024-11-08 22:50:45,690 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:45" (1/1) ... [2024-11-08 22:50:45,697 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:45" (1/1) ... [2024-11-08 22:50:45,700 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:45" (1/1) ... [2024-11-08 22:50:45,701 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:45" (1/1) ... [2024-11-08 22:50:45,702 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:45" (1/1) ... [2024-11-08 22:50:45,705 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:50:45,706 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:50:45,706 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:50:45,706 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:50:45,707 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:50:45" (1/1) ... [2024-11-08 22:50:45,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:50:45,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66788344-7308-4f6f-9aa8-bcb99a103bee/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:50:45,744 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66788344-7308-4f6f-9aa8-bcb99a103bee/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:50:45,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66788344-7308-4f6f-9aa8-bcb99a103bee/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:50:45,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:50:45,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 22:50:45,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 22:50:45,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-08 22:50:45,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:50:45,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:50:45,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-08 22:50:45,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 22:50:45,854 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:50:45,856 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:50:46,043 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-08 22:50:46,043 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:50:46,088 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:50:46,088 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 22:50:46,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:50:46 BoogieIcfgContainer [2024-11-08 22:50:46,089 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:50:46,089 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:50:46,090 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:50:46,099 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:50:46,100 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:50:46" (1/1) ... [2024-11-08 22:50:46,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:50:46,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:50:46,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2024-11-08 22:50:46,158 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2024-11-08 22:50:46,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 22:50:46,160 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:50:46,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:50:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:50:46,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:50:46,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:50:46,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2024-11-08 22:50:46,551 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2024-11-08 22:50:46,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 22:50:46,552 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:50:46,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:50:46,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:50:46,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:50:46,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:50:46,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2024-11-08 22:50:46,715 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2024-11-08 22:50:46,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 22:50:46,715 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:50:46,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:50:46,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:50:46,885 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:50:46,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:50:46,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 25 states and 36 transitions. [2024-11-08 22:50:46,980 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2024-11-08 22:50:46,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 22:50:46,983 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:50:46,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:50:47,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:50:47,104 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:50:47,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:50:47,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 29 states and 41 transitions. [2024-11-08 22:50:47,220 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 41 transitions. [2024-11-08 22:50:47,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 22:50:47,221 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:50:47,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:50:47,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:50:47,338 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 22:50:47,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:50:47,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2024-11-08 22:50:47,521 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2024-11-08 22:50:47,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-08 22:50:47,521 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:50:47,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:50:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:50:47,616 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:50:47,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:50:47,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 30 states and 41 transitions. [2024-11-08 22:50:47,698 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2024-11-08 22:50:47,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-08 22:50:47,699 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:50:47,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:50:47,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:50:47,793 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:50:47,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:50:47,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 34 states and 46 transitions. [2024-11-08 22:50:47,880 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2024-11-08 22:50:47,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-08 22:50:47,881 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:50:47,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:50:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:50:48,016 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:50:48,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:50:48,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 38 states and 51 transitions. [2024-11-08 22:50:48,117 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 51 transitions. [2024-11-08 22:50:48,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-08 22:50:48,118 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:50:48,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:50:48,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:50:48,264 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:50:48,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:50:48,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 34 states and 45 transitions. [2024-11-08 22:50:48,373 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2024-11-08 22:50:48,373 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 22:50:48,373 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2024-11-08 22:50:48,382 INFO L729 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2024-11-08 22:50:48,739 INFO L77 FloydHoareUtils]: At program point L64(lines 40 72) the Hoare annotation is: true [2024-11-08 22:50:48,740 INFO L77 FloydHoareUtils]: At program point L23(lines 23 100) the Hoare annotation is: true [2024-11-08 22:50:48,740 INFO L77 FloydHoareUtils]: At program point main_returnLabel#1(lines 12 101) the Hoare annotation is: true [2024-11-08 22:50:48,741 INFO L77 FloydHoareUtils]: At program point L40(lines 40 72) the Hoare annotation is: true [2024-11-08 22:50:48,742 INFO L77 FloydHoareUtils]: At program point $Ultimate##8(lines 33 83) the Hoare annotation is: (or (and (< 3 |ULTIMATE.start_main_~main__i~0#1|) (<= |ULTIMATE.start_main_~main__i~0#1| 4)) (and (<= |ULTIMATE.start_main_~main__i~0#1| 1) (<= 1 |ULTIMATE.start_main_~main__i~0#1|)) (and (<= |ULTIMATE.start_main_~main__i~0#1| 3) (< 2 |ULTIMATE.start_main_~main__i~0#1|)) (and (< 1 |ULTIMATE.start_main_~main__i~0#1|) (<= |ULTIMATE.start_main_~main__i~0#1| 2)) (and (<= |ULTIMATE.start_main_~main__i~0#1| 5) (< 4 |ULTIMATE.start_main_~main__i~0#1|)) (and (< |ULTIMATE.start_main_~main__i~0#1| 1) (<= 0 (+ |ULTIMATE.start_main_~main__i~0#1| 2147483648)))) [2024-11-08 22:50:48,742 INFO L77 FloydHoareUtils]: At program point $Ultimate##6(lines 29 88) the Hoare annotation is: true [2024-11-08 22:50:48,743 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 76) no Hoare annotation was computed. [2024-11-08 22:50:48,743 INFO L77 FloydHoareUtils]: At program point L45(lines 42 67) the Hoare annotation is: true [2024-11-08 22:50:48,743 INFO L77 FloydHoareUtils]: At program point L37(lines 33 83) the Hoare annotation is: true [2024-11-08 22:50:48,744 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 76) no Hoare annotation was computed. [2024-11-08 22:50:48,744 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-08 22:50:48,744 INFO L77 FloydHoareUtils]: At program point L25(lines 25 95) the Hoare annotation is: true [2024-11-08 22:50:48,744 INFO L77 FloydHoareUtils]: At program point L42(lines 42 67) the Hoare annotation is: true [2024-11-08 22:50:48,744 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-08 22:50:48,744 INFO L77 FloydHoareUtils]: At program point L92(lines 23 100) the Hoare annotation is: true [2024-11-08 22:50:48,745 INFO L77 FloydHoareUtils]: At program point L76(line 76) the Hoare annotation is: (or (and (< 3 |ULTIMATE.start_main_~main__i~0#1|) (<= |ULTIMATE.start_main_~main__i~0#1| 4)) (and (<= |ULTIMATE.start_main_~main__i~0#1| 1) (<= 1 |ULTIMATE.start_main_~main__i~0#1|)) (= |ULTIMATE.start_main_~main__i~0#1| 0) (and (<= |ULTIMATE.start_main_~main__i~0#1| 3) (< 2 |ULTIMATE.start_main_~main__i~0#1|)) (and (< 1 |ULTIMATE.start_main_~main__i~0#1|) (<= |ULTIMATE.start_main_~main__i~0#1| 2))) [2024-11-08 22:50:48,745 INFO L77 FloydHoareUtils]: At program point L76-1(line 76) the Hoare annotation is: (or (and (< 3 |ULTIMATE.start_main_~main__i~0#1|) (<= |ULTIMATE.start_main_~main__i~0#1| 4)) (and (<= |ULTIMATE.start_main_~main__i~0#1| 3) (< 2 |ULTIMATE.start_main_~main__i~0#1|)) (and (<= |ULTIMATE.start_main_~main__i~0#1| 1) (<= 0 (+ 2147483649 |ULTIMATE.start_main_~main__i~0#1|))) (and (< 1 |ULTIMATE.start_main_~main__i~0#1|) (<= |ULTIMATE.start_main_~main__i~0#1| 2))) [2024-11-08 22:50:48,745 INFO L77 FloydHoareUtils]: At program point L35(lines 35 78) the Hoare annotation is: (or (and (< 3 |ULTIMATE.start_main_~main__i~0#1|) (<= |ULTIMATE.start_main_~main__i~0#1| 4)) (and (<= |ULTIMATE.start_main_~main__i~0#1| 1) (<= 1 |ULTIMATE.start_main_~main__i~0#1|)) (= |ULTIMATE.start_main_~main__i~0#1| 0) (and (<= |ULTIMATE.start_main_~main__i~0#1| 3) (< 2 |ULTIMATE.start_main_~main__i~0#1|)) (and (< 1 |ULTIMATE.start_main_~main__i~0#1|) (<= |ULTIMATE.start_main_~main__i~0#1| 2))) [2024-11-08 22:50:48,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:50:48 ImpRootNode [2024-11-08 22:50:48,766 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:50:48,766 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:50:48,766 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:50:48,767 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:50:48,768 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:50:46" (3/4) ... [2024-11-08 22:50:48,771 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 22:50:48,783 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-08 22:50:48,783 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-08 22:50:48,783 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 22:50:48,784 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 22:50:48,891 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66788344-7308-4f6f-9aa8-bcb99a103bee/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-08 22:50:48,892 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66788344-7308-4f6f-9aa8-bcb99a103bee/bin/ukojak-verify-ImItNfHLgk/witness.yml [2024-11-08 22:50:48,892 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:50:48,893 INFO L158 Benchmark]: Toolchain (without parser) took 3587.42ms. Allocated memory was 142.6MB in the beginning and 180.4MB in the end (delta: 37.7MB). Free memory was 111.2MB in the beginning and 79.4MB in the end (delta: 31.8MB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. [2024-11-08 22:50:48,893 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 142.6MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:50:48,894 INFO L158 Benchmark]: CACSL2BoogieTranslator took 328.21ms. Allocated memory is still 142.6MB. Free memory was 110.8MB in the beginning and 97.8MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 22:50:48,894 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.88ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 96.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:50:48,894 INFO L158 Benchmark]: Boogie Preprocessor took 27.74ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 94.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:50:48,895 INFO L158 Benchmark]: RCFGBuilder took 383.25ms. Allocated memory is still 142.6MB. Free memory was 94.5MB in the beginning and 79.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 22:50:48,895 INFO L158 Benchmark]: CodeCheck took 2676.31ms. Allocated memory was 142.6MB in the beginning and 180.4MB in the end (delta: 37.7MB). Free memory was 79.8MB in the beginning and 84.7MB in the end (delta: -4.9MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. [2024-11-08 22:50:48,896 INFO L158 Benchmark]: Witness Printer took 126.00ms. Allocated memory is still 180.4MB. Free memory was 84.7MB in the beginning and 79.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 22:50:48,898 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: 2.3s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 322 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 201 mSDsluCounter, 285 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 130 mSDsCounter, 168 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 556 IncrementalHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 168 mSolverCounterUnsat, 155 mSDtfsCounter, 556 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1067 GetRequests, 991 SyntacticMatches, 40 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 336 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 10/153 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: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: 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: 33]: Location Invariant Derived location invariant: (((((((3 < main__i) && (main__i <= 4)) || ((main__i <= 1) && (1 <= main__i))) || ((main__i <= 3) && (2 < main__i))) || ((1 < main__i) && (main__i <= 2))) || ((main__i <= 5) && (4 < main__i))) || ((main__i < 1) && (0 <= (main__i + 2147483648)))) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 142.6MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 328.21ms. Allocated memory is still 142.6MB. Free memory was 110.8MB in the beginning and 97.8MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.88ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 96.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.74ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 94.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 383.25ms. Allocated memory is still 142.6MB. Free memory was 94.5MB in the beginning and 79.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 2676.31ms. Allocated memory was 142.6MB in the beginning and 180.4MB in the end (delta: 37.7MB). Free memory was 79.8MB in the beginning and 84.7MB in the end (delta: -4.9MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. * Witness Printer took 126.00ms. Allocated memory is still 180.4MB. Free memory was 84.7MB in the beginning and 79.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-08 22:50:48,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66788344-7308-4f6f-9aa8-bcb99a103bee/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE