./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-nla/freire1-both-t.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_798c66e4-cee6-4224-af4a-24002ca28814/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c66e4-cee6-4224-af4a-24002ca28814/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_798c66e4-cee6-4224-af4a-24002ca28814/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c66e4-cee6-4224-af4a-24002ca28814/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-nla/freire1-both-t.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c66e4-cee6-4224-af4a-24002ca28814/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c66e4-cee6-4224-af4a-24002ca28814/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 32bit --witnessprinter.graph.data.programhash dd092a6766612bbc84c4d30e8cb08b7ea7e92d604046ccadae0abd9f6c96c3d7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 03:58:17,797 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 03:58:17,845 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c66e4-cee6-4224-af4a-24002ca28814/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-12-06 03:58:17,849 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 03:58:17,850 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 03:58:17,868 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 03:58:17,869 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 03:58:17,869 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 03:58:17,869 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 03:58:17,869 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 03:58:17,869 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 03:58:17,870 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 03:58:17,870 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 03:58:17,870 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 03:58:17,870 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 03:58:17,870 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 03:58:17,870 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 03:58:17,870 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 03:58:17,870 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 03:58:17,870 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 03:58:17,870 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 03:58:17,870 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 03:58:17,871 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 03:58:17,871 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 03:58:17,871 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 03:58:17,871 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 03:58:17,871 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 03:58:17,871 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 03:58:17,871 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 03:58:17,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:58:17,871 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 03:58:17,872 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 03:58:17,872 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 03:58:17,872 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 03:58:17,872 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 03:58:17,872 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_798c66e4-cee6-4224-af4a-24002ca28814/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dd092a6766612bbc84c4d30e8cb08b7ea7e92d604046ccadae0abd9f6c96c3d7 [2024-12-06 03:58:18,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 03:58:18,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 03:58:18,070 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 03:58:18,071 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 03:58:18,071 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 03:58:18,072 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c66e4-cee6-4224-af4a-24002ca28814/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/termination-nla/freire1-both-t.c [2024-12-06 03:58:20,657 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c66e4-cee6-4224-af4a-24002ca28814/bin/ukojak-verify-CZk0znPC7b/data/0846ef481/e8ebc4cd70b64c9ca4ce77f8a3e62853/FLAGb792a19c5 [2024-12-06 03:58:20,833 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 03:58:20,833 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c66e4-cee6-4224-af4a-24002ca28814/sv-benchmarks/c/termination-nla/freire1-both-t.c [2024-12-06 03:58:20,838 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c66e4-cee6-4224-af4a-24002ca28814/bin/ukojak-verify-CZk0znPC7b/data/0846ef481/e8ebc4cd70b64c9ca4ce77f8a3e62853/FLAGb792a19c5 [2024-12-06 03:58:20,850 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c66e4-cee6-4224-af4a-24002ca28814/bin/ukojak-verify-CZk0znPC7b/data/0846ef481/e8ebc4cd70b64c9ca4ce77f8a3e62853 [2024-12-06 03:58:20,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 03:58:20,854 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 03:58:20,855 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 03:58:20,855 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 03:58:20,858 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 03:58:20,859 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:58:20" (1/1) ... [2024-12-06 03:58:20,859 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41454b13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:58:20, skipping insertion in model container [2024-12-06 03:58:20,860 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:58:20" (1/1) ... [2024-12-06 03:58:20,869 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 03:58:20,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:58:20,976 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 03:58:20,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:58:20,995 INFO L204 MainTranslator]: Completed translation [2024-12-06 03:58:20,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:58:20 WrapperNode [2024-12-06 03:58:20,996 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 03:58:20,996 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 03:58:20,996 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 03:58:20,997 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 03:58:21,001 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:58:20" (1/1) ... [2024-12-06 03:58:21,004 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:58:20" (1/1) ... [2024-12-06 03:58:21,015 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 40 [2024-12-06 03:58:21,016 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 03:58:21,016 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 03:58:21,016 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 03:58:21,016 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 03:58:21,021 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:58:20" (1/1) ... [2024-12-06 03:58:21,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:58:20" (1/1) ... [2024-12-06 03:58:21,022 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:58:20" (1/1) ... [2024-12-06 03:58:21,023 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:58:20" (1/1) ... [2024-12-06 03:58:21,024 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:58:20" (1/1) ... [2024-12-06 03:58:21,025 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:58:20" (1/1) ... [2024-12-06 03:58:21,029 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:58:20" (1/1) ... [2024-12-06 03:58:21,030 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:58:20" (1/1) ... [2024-12-06 03:58:21,030 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:58:20" (1/1) ... [2024-12-06 03:58:21,031 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 03:58:21,032 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 03:58:21,032 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 03:58:21,032 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 03:58:21,033 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:58:20" (1/1) ... [2024-12-06 03:58:21,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:58:21,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c66e4-cee6-4224-af4a-24002ca28814/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 03:58:21,058 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c66e4-cee6-4224-af4a-24002ca28814/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 03:58:21,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c66e4-cee6-4224-af4a-24002ca28814/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 03:58:21,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 03:58:21,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 03:58:21,118 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 03:58:21,119 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 03:58:21,284 INFO L? ?]: Removed 40 outVars from TransFormulas that were not future-live. [2024-12-06 03:58:21,284 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 03:58:21,301 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 03:58:21,301 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 03:58:21,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:58:21 BoogieIcfgContainer [2024-12-06 03:58:21,302 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 03:58:21,302 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 03:58:21,302 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 03:58:21,312 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 03:58:21,312 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:58:21" (1/1) ... [2024-12-06 03:58:21,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 03:58:21,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:58:21,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 40 states and 41 transitions. [2024-12-06 03:58:21,367 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2024-12-06 03:58:21,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-12-06 03:58:21,369 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:58:21,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:58:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:58:21,504 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 03:58:21,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:58:21,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 39 states and 40 transitions. [2024-12-06 03:58:21,545 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2024-12-06 03:58:21,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-12-06 03:58:21,545 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:58:21,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:58:21,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:58:21,638 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 03:58:21,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:58:21,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 38 states and 39 transitions. [2024-12-06 03:58:21,713 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2024-12-06 03:58:21,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 03:58:21,713 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:58:21,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:58:21,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:58:21,735 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 03:58:21,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:58:21,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2024-12-06 03:58:21,740 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2024-12-06 03:58:21,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 03:58:21,740 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:58:21,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:58:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 03:58:21,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:58:21,763 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-06 03:58:21,765 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 03:58:21,783 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 03:58:21,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:58:21,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 39 states and 40 transitions. [2024-12-06 03:58:21,818 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2024-12-06 03:58:21,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 03:58:21,818 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:58:21,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:58:21,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 03:58:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:58:21,836 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-06 03:58:21,837 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 03:58:21,877 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 03:58:22,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:58:22,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 42 states and 44 transitions. [2024-12-06 03:58:22,012 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2024-12-06 03:58:22,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 03:58:22,013 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:58:22,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:58:22,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 03:58:22,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:58:22,032 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 03:58:22,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:58:22,046 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2024-12-06 03:58:22,061 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 03:58:22 ImpRootNode [2024-12-06 03:58:22,061 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 03:58:22,062 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 03:58:22,062 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 03:58:22,062 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 03:58:22,063 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:58:21" (3/4) ... [2024-12-06 03:58:22,063 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 03:58:22,088 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 1. [2024-12-06 03:58:22,117 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c66e4-cee6-4224-af4a-24002ca28814/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 03:58:22,117 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c66e4-cee6-4224-af4a-24002ca28814/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 03:58:22,117 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 03:58:22,118 INFO L158 Benchmark]: Toolchain (without parser) took 1263.90ms. Allocated memory is still 117.4MB. Free memory was 93.3MB in the beginning and 83.0MB in the end (delta: 10.2MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2024-12-06 03:58:22,118 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:58:22,118 INFO L158 Benchmark]: CACSL2BoogieTranslator took 141.39ms. Allocated memory is still 117.4MB. Free memory was 93.3MB in the beginning and 83.3MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:58:22,118 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.48ms. Allocated memory is still 117.4MB. Free memory was 83.3MB in the beginning and 81.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:58:22,119 INFO L158 Benchmark]: Boogie Preprocessor took 15.18ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 81.4MB in the end (delta: 532.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:58:22,119 INFO L158 Benchmark]: RCFGBuilder took 269.97ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 69.1MB in the end (delta: 12.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 03:58:22,119 INFO L158 Benchmark]: CodeCheck took 759.08ms. Allocated memory is still 117.4MB. Free memory was 69.1MB in the beginning and 86.9MB in the end (delta: -17.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:58:22,120 INFO L158 Benchmark]: Witness Printer took 55.25ms. Allocated memory is still 117.4MB. Free memory was 86.9MB in the beginning and 83.0MB in the end (delta: 3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:58:22,121 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, 40 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 50 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 104 IncrementalHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 6 mSDtfsCounter, 104 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 126 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 51 SizeOfPredicates, 0 NumberOfNonLiveVariables, 33 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - CounterExampleResult [Line: 33]: integer overflow possible integer overflow possible We found a FailurePath: [L25] int r; [L27] int x; [L28] int a = __VERIFIER_nondet_int(); [L29] EXPR a / 2 [L29] x = a / 2 [L30] r = 0 [L31] int c = 0; [L31] int k = __VERIFIER_nondet_int(); [L33] EXPR r*r VAL [a=-2147483648, c=0, k=0, r=0, x=-1073741824] [L33] r*r - a VAL [c=0, k=0, x=-1073741824] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 141.39ms. Allocated memory is still 117.4MB. Free memory was 93.3MB in the beginning and 83.3MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.48ms. Allocated memory is still 117.4MB. Free memory was 83.3MB in the beginning and 81.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.18ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 81.4MB in the end (delta: 532.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 269.97ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 69.1MB in the end (delta: 12.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 759.08ms. Allocated memory is still 117.4MB. Free memory was 69.1MB in the beginning and 86.9MB in the end (delta: -17.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 55.25ms. Allocated memory is still 117.4MB. Free memory was 86.9MB in the beginning and 83.0MB in the end (delta: 3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 03:58:22,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_798c66e4-cee6-4224-af4a-24002ca28814/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)