./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/float-benchs/interpolation2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b58310-9834-4196-b477-e1d53549fe56/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b58310-9834-4196-b477-e1d53549fe56/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b58310-9834-4196-b477-e1d53549fe56/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b58310-9834-4196-b477-e1d53549fe56/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b58310-9834-4196-b477-e1d53549fe56/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b58310-9834-4196-b477-e1d53549fe56/bin/ukojak-verify-ENZ3QT5qd3 --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 5f3bcf3c30f63fe0ad0702712c01ba8d1145d6fb2558cd3e5ee3c870476dc3b1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 04:05:19,234 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 04:05:19,301 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b58310-9834-4196-b477-e1d53549fe56/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-11-25 04:05:19,306 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 04:05:19,306 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 04:05:19,330 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 04:05:19,330 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 04:05:19,330 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 04:05:19,331 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 04:05:19,331 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 04:05:19,331 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 04:05:19,331 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 04:05:19,331 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 04:05:19,331 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 04:05:19,332 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 04:05:19,332 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 04:05:19,332 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 04:05:19,332 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 04:05:19,332 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 04:05:19,332 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 04:05:19,332 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 04:05:19,332 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 04:05:19,332 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 04:05:19,333 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 04:05:19,333 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 04:05:19,333 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 04:05:19,333 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 04:05:19,333 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 04:05:19,333 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 04:05:19,333 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:05:19,333 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 04:05:19,334 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 04:05:19,334 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 04:05:19,334 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 04:05:19,334 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 04:05:19,334 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_63b58310-9834-4196-b477-e1d53549fe56/bin/ukojak-verify-ENZ3QT5qd3 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 -> 5f3bcf3c30f63fe0ad0702712c01ba8d1145d6fb2558cd3e5ee3c870476dc3b1 [2024-11-25 04:05:19,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 04:05:19,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 04:05:19,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 04:05:19,667 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 04:05:19,667 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 04:05:19,669 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b58310-9834-4196-b477-e1d53549fe56/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/float-benchs/interpolation2.c [2024-11-25 04:05:22,640 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b58310-9834-4196-b477-e1d53549fe56/bin/ukojak-verify-ENZ3QT5qd3/data/50d810718/e1377c98560e424da37cdf2cf89a052b/FLAG98fd7557d [2024-11-25 04:05:22,924 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 04:05:22,924 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b58310-9834-4196-b477-e1d53549fe56/sv-benchmarks/c/float-benchs/interpolation2.c [2024-11-25 04:05:22,931 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b58310-9834-4196-b477-e1d53549fe56/bin/ukojak-verify-ENZ3QT5qd3/data/50d810718/e1377c98560e424da37cdf2cf89a052b/FLAG98fd7557d [2024-11-25 04:05:22,946 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b58310-9834-4196-b477-e1d53549fe56/bin/ukojak-verify-ENZ3QT5qd3/data/50d810718/e1377c98560e424da37cdf2cf89a052b [2024-11-25 04:05:22,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 04:05:22,950 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 04:05:22,952 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 04:05:22,952 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 04:05:22,958 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 04:05:22,959 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:05:22" (1/1) ... [2024-11-25 04:05:22,960 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ed38602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:05:22, skipping insertion in model container [2024-11-25 04:05:22,962 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:05:22" (1/1) ... [2024-11-25 04:05:22,980 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 04:05:23,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:05:23,185 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 04:05:23,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:05:23,238 INFO L204 MainTranslator]: Completed translation [2024-11-25 04:05:23,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:05:23 WrapperNode [2024-11-25 04:05:23,239 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 04:05:23,241 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 04:05:23,241 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 04:05:23,241 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 04:05:23,250 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:05:23" (1/1) ... [2024-11-25 04:05:23,259 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:05:23" (1/1) ... [2024-11-25 04:05:23,285 INFO L138 Inliner]: procedures = 18, calls = 50, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 102 [2024-11-25 04:05:23,288 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 04:05:23,289 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 04:05:23,289 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 04:05:23,290 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 04:05:23,297 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:05:23" (1/1) ... [2024-11-25 04:05:23,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:05:23" (1/1) ... [2024-11-25 04:05:23,300 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:05:23" (1/1) ... [2024-11-25 04:05:23,304 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:05:23" (1/1) ... [2024-11-25 04:05:23,314 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:05:23" (1/1) ... [2024-11-25 04:05:23,317 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:05:23" (1/1) ... [2024-11-25 04:05:23,324 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:05:23" (1/1) ... [2024-11-25 04:05:23,325 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:05:23" (1/1) ... [2024-11-25 04:05:23,329 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:05:23" (1/1) ... [2024-11-25 04:05:23,331 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 04:05:23,332 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 04:05:23,335 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 04:05:23,335 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 04:05:23,336 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:05:23" (1/1) ... [2024-11-25 04:05:23,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:05:23,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b58310-9834-4196-b477-e1d53549fe56/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 04:05:23,373 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b58310-9834-4196-b477-e1d53549fe56/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 04:05:23,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b58310-9834-4196-b477-e1d53549fe56/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 04:05:23,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 04:05:23,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 04:05:23,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-25 04:05:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-25 04:05:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 04:05:23,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 04:05:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-25 04:05:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 04:05:23,493 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 04:05:23,495 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 04:05:23,649 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-25 04:05:23,649 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 04:05:23,772 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 04:05:23,773 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-25 04:05:23,773 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:05:23 BoogieIcfgContainer [2024-11-25 04:05:23,773 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 04:05:23,774 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 04:05:23,774 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 04:05:23,785 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 04:05:23,785 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:05:23" (1/1) ... [2024-11-25 04:05:23,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 04:05:23,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:05:23,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2024-11-25 04:05:23,849 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2024-11-25 04:05:23,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-25 04:05:23,852 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:05:23,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:05:23,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:05:24,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:05:24,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:05:24,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2024-11-25 04:05:24,242 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2024-11-25 04:05:24,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-25 04:05:24,242 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:05:24,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:05:24,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:05:24,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:05:24,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:05:24,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2024-11-25 04:05:24,547 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2024-11-25 04:05:24,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 04:05:24,547 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:05:24,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:05:24,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:05:24,663 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:05:24,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:05:24,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2024-11-25 04:05:24,694 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2024-11-25 04:05:24,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-25 04:05:24,694 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:05:24,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:05:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:05:24,891 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:05:25,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:05:25,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2024-11-25 04:05:25,064 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2024-11-25 04:05:25,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-25 04:05:25,064 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:05:25,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:05:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:05:25,224 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:05:25,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:05:25,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2024-11-25 04:05:25,407 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2024-11-25 04:05:25,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-25 04:05:25,407 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:05:25,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:05:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:05:25,642 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:05:25,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:05:25,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 24 states and 29 transitions. [2024-11-25 04:05:25,861 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2024-11-25 04:05:25,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-25 04:05:25,861 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:05:25,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:05:25,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:05:26,131 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:05:26,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:05:26,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 28 states and 34 transitions. [2024-11-25 04:05:26,386 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2024-11-25 04:05:26,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-25 04:05:26,387 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:05:26,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:05:26,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:05:26,638 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 04:05:26,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:05:26,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2024-11-25 04:05:26,881 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2024-11-25 04:05:26,882 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-25 04:05:26,882 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2024-11-25 04:05:26,893 INFO L726 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2024-11-25 04:05:27,236 INFO L77 FloydHoareUtils]: At program point L23-3(line 23) the Hoare annotation is: (or (and (< 2 |ULTIMATE.start_main_#t~post9#1|) (<= |ULTIMATE.start_main_#t~post9#1| 3)) (and (< 0 |ULTIMATE.start_main_#t~post9#1|) (<= |ULTIMATE.start_main_#t~post9#1| 1)) (and (<= 0 |ULTIMATE.start_main_#t~post9#1|) (<= |ULTIMATE.start_main_#t~post9#1| 0)) (and (< 1 |ULTIMATE.start_main_#t~post9#1|) (<= |ULTIMATE.start_main_#t~post9#1| 2)) (and (<= |ULTIMATE.start_main_#t~post9#1| 4) (< 3 |ULTIMATE.start_main_#t~post9#1|))) [2024-11-25 04:05:27,238 INFO L77 FloydHoareUtils]: At program point L23-4(line 23) the Hoare annotation is: (or (and (< 2 |ULTIMATE.start_main_#t~post9#1|) (<= |ULTIMATE.start_main_#t~post9#1| 3)) (and (< 0 |ULTIMATE.start_main_#t~post9#1|) (<= |ULTIMATE.start_main_#t~post9#1| 1)) (and (<= 0 |ULTIMATE.start_main_#t~post9#1|) (<= |ULTIMATE.start_main_#t~post9#1| 0)) (and (< 1 |ULTIMATE.start_main_#t~post9#1|) (<= |ULTIMATE.start_main_#t~post9#1| 2)) (and (<= |ULTIMATE.start_main_#t~post9#1| 4) (< 3 |ULTIMATE.start_main_#t~post9#1|))) [2024-11-25 04:05:27,238 INFO L77 FloydHoareUtils]: At program point L23-5(lines 23 25) the Hoare annotation is: (or (and (<= |ULTIMATE.start_main_~i~0#1| 3) (< 2 |ULTIMATE.start_main_~i~0#1|)) (and (< 3 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 4)) (and (< 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1)) (and (< 4 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 5)) (and (<= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|)) (and (< 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2))) [2024-11-25 04:05:27,238 INFO L77 FloydHoareUtils]: At program point L23-6(lines 23 25) the Hoare annotation is: true [2024-11-25 04:05:27,239 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2024-11-25 04:05:27,239 INFO L77 FloydHoareUtils]: At program point L24(line 24) the Hoare annotation is: (or (and (<= |ULTIMATE.start_main_~i~0#1| 3) (< 2 |ULTIMATE.start_main_~i~0#1|)) (and (< 3 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 4)) (and (< 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1)) (and (<= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|)) (and (< 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2))) [2024-11-25 04:05:27,242 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2024-11-25 04:05:27,242 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-25 04:05:27,243 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-25 04:05:27,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 04:05:27 ImpRootNode [2024-11-25 04:05:27,260 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 04:05:27,261 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 04:05:27,261 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 04:05:27,261 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 04:05:27,262 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:05:23" (3/4) ... [2024-11-25 04:05:27,264 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-25 04:05:27,273 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-25 04:05:27,274 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-25 04:05:27,274 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-25 04:05:27,275 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-25 04:05:27,370 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b58310-9834-4196-b477-e1d53549fe56/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-25 04:05:27,371 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b58310-9834-4196-b477-e1d53549fe56/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-25 04:05:27,371 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 04:05:27,374 INFO L158 Benchmark]: Toolchain (without parser) took 4421.75ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 93.7MB in the beginning and 211.9MB in the end (delta: -118.2MB). Peak memory consumption was 114.3MB. Max. memory is 16.1GB. [2024-11-25 04:05:27,375 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 167.8MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:05:27,375 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.17ms. Allocated memory is still 117.4MB. Free memory was 93.7MB in the beginning and 82.4MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 04:05:27,376 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.87ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 80.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:05:27,376 INFO L158 Benchmark]: Boogie Preprocessor took 42.17ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:05:27,377 INFO L158 Benchmark]: RCFGBuilder took 441.62ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 62.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 04:05:27,378 INFO L158 Benchmark]: CodeCheck took 3486.16ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 62.8MB in the beginning and 216.6MB in the end (delta: -153.8MB). Peak memory consumption was 80.7MB. Max. memory is 16.1GB. [2024-11-25 04:05:27,379 INFO L158 Benchmark]: Witness Printer took 110.47ms. Allocated memory is still 352.3MB. Free memory was 216.6MB in the beginning and 211.9MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:05:27,380 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, 9 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 134 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 122 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 189 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 581 IncrementalHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 189 mSolverCounterUnsat, 60 mSDtfsCounter, 581 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 764 GetRequests, 644 SyntacticMatches, 68 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 952 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 282 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 3/143 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, ConComCheckerStatistics: No data available - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: 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: 23]: Loop Invariant Derived loop invariant: (((((((i <= 3) && (2 < i)) || ((3 < i) && (i <= 4))) || ((0 < i) && (i <= 1))) || ((4 < i) && (i <= 5))) || ((i <= 0) && (0 <= i))) || ((1 < i) && (i <= 2))) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 167.8MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.17ms. Allocated memory is still 117.4MB. Free memory was 93.7MB in the beginning and 82.4MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.87ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 80.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.17ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 441.62ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 62.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 3486.16ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 62.8MB in the beginning and 216.6MB in the end (delta: -153.8MB). Peak memory consumption was 80.7MB. Max. memory is 16.1GB. * Witness Printer took 110.47ms. Allocated memory is still 352.3MB. Free memory was 216.6MB in the beginning and 211.9MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-25 04:05:27,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b58310-9834-4196-b477-e1d53549fe56/bin/ukojak-verify-ENZ3QT5qd3/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