./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Nyala-2lex-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_f896dcac-4743-4bf3-8fa3-04e620875d56/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f896dcac-4743-4bf3-8fa3-04e620875d56/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f896dcac-4743-4bf3-8fa3-04e620875d56/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f896dcac-4743-4bf3-8fa3-04e620875d56/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Nyala-2lex-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f896dcac-4743-4bf3-8fa3-04e620875d56/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f896dcac-4743-4bf3-8fa3-04e620875d56/bin/ukojak-verify-CZk0znPC7b --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 c7af6276f284150d727ce6751d1ad224555978772fc00866b2076f280ebd27cb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 05:11:59,039 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:11:59,094 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f896dcac-4743-4bf3-8fa3-04e620875d56/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 05:11:59,098 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 05:11:59,099 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 05:11:59,118 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:11:59,119 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 05:11:59,119 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 05:11:59,120 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:11:59,120 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:11:59,120 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:11:59,120 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 05:11:59,120 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 05:11:59,120 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:11:59,120 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 05:11:59,120 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:11:59,120 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 05:11:59,121 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 05:11:59,121 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 05:11:59,121 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 05:11:59,121 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:11:59,121 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:11:59,121 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:11:59,121 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:11:59,121 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:11:59,121 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:11:59,121 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:11:59,121 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:11:59,122 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:11:59,122 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 05:11:59,122 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 05:11:59,122 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 05:11:59,122 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_f896dcac-4743-4bf3-8fa3-04e620875d56/bin/ukojak-verify-CZk0znPC7b 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 -> c7af6276f284150d727ce6751d1ad224555978772fc00866b2076f280ebd27cb [2024-12-06 05:11:59,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:11:59,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:11:59,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:11:59,369 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:11:59,370 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:11:59,371 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f896dcac-4743-4bf3-8fa3-04e620875d56/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/termination-crafted/Nyala-2lex-2.c [2024-12-06 05:12:01,994 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f896dcac-4743-4bf3-8fa3-04e620875d56/bin/ukojak-verify-CZk0znPC7b/data/a11f1651a/0d5880917b014efbbd12eca7e695c9fa/FLAG479a65943 [2024-12-06 05:12:02,198 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:12:02,199 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f896dcac-4743-4bf3-8fa3-04e620875d56/sv-benchmarks/c/termination-crafted/Nyala-2lex-2.c [2024-12-06 05:12:02,214 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f896dcac-4743-4bf3-8fa3-04e620875d56/bin/ukojak-verify-CZk0znPC7b/data/a11f1651a/0d5880917b014efbbd12eca7e695c9fa/FLAG479a65943 [2024-12-06 05:12:02,560 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f896dcac-4743-4bf3-8fa3-04e620875d56/bin/ukojak-verify-CZk0znPC7b/data/a11f1651a/0d5880917b014efbbd12eca7e695c9fa [2024-12-06 05:12:02,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:12:02,563 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:12:02,564 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:12:02,564 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:12:02,568 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:12:02,568 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:12:02" (1/1) ... [2024-12-06 05:12:02,569 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4db255d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:12:02, skipping insertion in model container [2024-12-06 05:12:02,569 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:12:02" (1/1) ... [2024-12-06 05:12:02,579 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:12:02,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:12:02,677 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:12:02,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:12:02,695 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:12:02,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:12:02 WrapperNode [2024-12-06 05:12:02,695 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:12:02,696 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:12:02,696 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:12:02,696 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:12:02,700 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:12:02" (1/1) ... [2024-12-06 05:12:02,702 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:12:02" (1/1) ... [2024-12-06 05:12:02,711 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2024-12-06 05:12:02,711 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:12:02,712 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:12:02,712 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:12:02,712 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:12:02,718 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:12:02" (1/1) ... [2024-12-06 05:12:02,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:12:02" (1/1) ... [2024-12-06 05:12:02,719 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:12:02" (1/1) ... [2024-12-06 05:12:02,719 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:12:02" (1/1) ... [2024-12-06 05:12:02,720 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:12:02" (1/1) ... [2024-12-06 05:12:02,721 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:12:02" (1/1) ... [2024-12-06 05:12:02,723 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:12:02" (1/1) ... [2024-12-06 05:12:02,724 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:12:02" (1/1) ... [2024-12-06 05:12:02,724 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:12:02" (1/1) ... [2024-12-06 05:12:02,725 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:12:02,725 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:12:02,725 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:12:02,726 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:12:02,726 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:12:02" (1/1) ... [2024-12-06 05:12:02,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:12:02,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f896dcac-4743-4bf3-8fa3-04e620875d56/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:12:02,751 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f896dcac-4743-4bf3-8fa3-04e620875d56/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:12:02,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f896dcac-4743-4bf3-8fa3-04e620875d56/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:12:02,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:12:02,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:12:02,818 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:12:02,819 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:12:02,874 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-12-06 05:12:02,874 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:12:02,891 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:12:02,891 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 05:12:02,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:12:02 BoogieIcfgContainer [2024-12-06 05:12:02,891 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:12:02,892 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:12:02,892 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:12:02,898 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:12:02,899 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:12:02" (1/1) ... [2024-12-06 05:12:02,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:12:02,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:12:02,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2024-12-06 05:12:02,942 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2024-12-06 05:12:02,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-12-06 05:12:02,944 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:12:02,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:12:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:12:03,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:12:03,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:12:03,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2024-12-06 05:12:03,071 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2024-12-06 05:12:03,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 05:12:03,071 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:12:03,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:12:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:12:03,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:12:03,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:12:03,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2024-12-06 05:12:03,167 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2024-12-06 05:12:03,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 05:12:03,167 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:12:03,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:12:03,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:12:03,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:12:03,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:12:03,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2024-12-06 05:12:03,385 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2024-12-06 05:12:03,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 05:12:03,385 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:12:03,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:12:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:12:03,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:12:03,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:12:03,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2024-12-06 05:12:03,702 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2024-12-06 05:12:03,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 05:12:03,703 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:12:03,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:12:03,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:12:03,752 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:12:03,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:12:03,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2024-12-06 05:12:03,855 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2024-12-06 05:12:03,855 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-06 05:12:03,855 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2024-12-06 05:12:03,862 INFO L726 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2024-12-06 05:12:03,891 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2024-12-06 05:12:03,891 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-12-06 05:12:03,891 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2024-12-06 05:12:03,892 INFO L77 FloydHoareUtils]: At program point L21(lines 21 24) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483646)) [2024-12-06 05:12:03,892 INFO L77 FloydHoareUtils]: At program point L21-2(lines 19 25) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) [2024-12-06 05:12:03,892 INFO L77 FloydHoareUtils]: At program point L19-1(lines 19 25) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) [2024-12-06 05:12:03,892 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-12-06 05:12:03,892 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2024-12-06 05:12:03,892 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2024-12-06 05:12:03,893 INFO L77 FloydHoareUtils]: At program point L22(line 22) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647)) [2024-12-06 05:12:03,893 INFO L77 FloydHoareUtils]: At program point L22-1(line 22) the Hoare annotation is: (<= |ULTIMATE.start_main_~x~0#1| 2147483647) [2024-12-06 05:12:03,893 INFO L77 FloydHoareUtils]: At program point L20(line 20) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) [2024-12-06 05:12:03,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 05:12:03 ImpRootNode [2024-12-06 05:12:03,901 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 05:12:03,902 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 05:12:03,902 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 05:12:03,902 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 05:12:03,902 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:12:02" (3/4) ... [2024-12-06 05:12:03,904 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-06 05:12:03,909 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-12-06 05:12:03,909 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-06 05:12:03,909 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-12-06 05:12:03,960 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f896dcac-4743-4bf3-8fa3-04e620875d56/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 05:12:03,960 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f896dcac-4743-4bf3-8fa3-04e620875d56/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 05:12:03,960 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 05:12:03,961 INFO L158 Benchmark]: Toolchain (without parser) took 1397.87ms. Allocated memory is still 142.6MB. Free memory was 119.3MB in the beginning and 96.6MB in the end (delta: 22.6MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2024-12-06 05:12:03,961 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory was 83.6MB in the beginning and 83.5MB in the end (delta: 31.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:12:03,961 INFO L158 Benchmark]: CACSL2BoogieTranslator took 131.90ms. Allocated memory is still 142.6MB. Free memory was 119.1MB in the beginning and 109.2MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 05:12:03,962 INFO L158 Benchmark]: Boogie Procedure Inliner took 15.64ms. Allocated memory is still 142.6MB. Free memory was 109.2MB in the beginning and 108.2MB in the end (delta: 992.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:12:03,962 INFO L158 Benchmark]: Boogie Preprocessor took 12.92ms. Allocated memory is still 142.6MB. Free memory was 108.2MB in the beginning and 107.7MB in the end (delta: 531.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:12:03,962 INFO L158 Benchmark]: RCFGBuilder took 165.93ms. Allocated memory is still 142.6MB. Free memory was 107.5MB in the beginning and 97.7MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 05:12:03,962 INFO L158 Benchmark]: CodeCheck took 1009.66ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 101.3MB in the end (delta: -3.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:12:03,963 INFO L158 Benchmark]: Witness Printer took 58.27ms. Allocated memory is still 142.6MB. Free memory was 100.8MB in the beginning and 96.6MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:12:03,964 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, 12 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 92 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 67 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 238 IncrementalHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 21 mSDtfsCounter, 238 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 250 GetRequests, 207 SyntacticMatches, 7 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 65 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 3/3 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: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ((x <= 2147483647) && (y <= 2147483647)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory was 83.6MB in the beginning and 83.5MB in the end (delta: 31.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 131.90ms. Allocated memory is still 142.6MB. Free memory was 119.1MB in the beginning and 109.2MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 15.64ms. Allocated memory is still 142.6MB. Free memory was 109.2MB in the beginning and 108.2MB in the end (delta: 992.3kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.92ms. Allocated memory is still 142.6MB. Free memory was 108.2MB in the beginning and 107.7MB in the end (delta: 531.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 165.93ms. Allocated memory is still 142.6MB. Free memory was 107.5MB in the beginning and 97.7MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1009.66ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 101.3MB in the end (delta: -3.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 58.27ms. Allocated memory is still 142.6MB. Free memory was 100.8MB in the beginning and 96.6MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-12-06 05:12:03,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f896dcac-4743-4bf3-8fa3-04e620875d56/bin/ukojak-verify-CZk0znPC7b/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