./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1b.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_6afcebea-9243-4b26-b0ce-ea28616acca3/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afcebea-9243-4b26-b0ce-ea28616acca3/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_6afcebea-9243-4b26-b0ce-ea28616acca3/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afcebea-9243-4b26-b0ce-ea28616acca3/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afcebea-9243-4b26-b0ce-ea28616acca3/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_6afcebea-9243-4b26-b0ce-ea28616acca3/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 68a9d192571af20a9caff88653fa376c42853b2f0586dd5e85037ba45183dc65 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 03:30:42,806 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 03:30:42,863 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afcebea-9243-4b26-b0ce-ea28616acca3/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 03:30:42,868 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 03:30:42,868 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 03:30:42,888 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 03:30:42,889 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 03:30:42,889 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 03:30:42,889 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 03:30:42,889 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 03:30:42,889 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 03:30:42,890 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 03:30:42,890 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 03:30:42,890 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 03:30:42,890 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 03:30:42,890 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 03:30:42,890 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 03:30:42,890 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 03:30:42,890 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 03:30:42,890 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 03:30:42,890 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 03:30:42,890 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 03:30:42,891 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 03:30:42,891 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 03:30:42,891 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 03:30:42,891 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 03:30:42,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:30:42,891 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 03:30:42,891 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 03:30:42,891 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 03:30:42,891 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 03:30:42,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 03:30:42,891 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_6afcebea-9243-4b26-b0ce-ea28616acca3/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 -> 68a9d192571af20a9caff88653fa376c42853b2f0586dd5e85037ba45183dc65 [2024-12-06 03:30:43,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 03:30:43,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 03:30:43,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 03:30:43,139 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 03:30:43,140 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 03:30:43,141 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afcebea-9243-4b26-b0ce-ea28616acca3/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1b.c [2024-12-06 03:30:45,759 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afcebea-9243-4b26-b0ce-ea28616acca3/bin/ukojak-verify-CZk0znPC7b/data/38a27eb18/ae31d0ff7d4849ebae517e80da98c3c8/FLAGfc5b5430c [2024-12-06 03:30:45,960 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 03:30:45,961 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afcebea-9243-4b26-b0ce-ea28616acca3/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1b.c [2024-12-06 03:30:45,968 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afcebea-9243-4b26-b0ce-ea28616acca3/bin/ukojak-verify-CZk0znPC7b/data/38a27eb18/ae31d0ff7d4849ebae517e80da98c3c8/FLAGfc5b5430c [2024-12-06 03:30:45,983 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afcebea-9243-4b26-b0ce-ea28616acca3/bin/ukojak-verify-CZk0znPC7b/data/38a27eb18/ae31d0ff7d4849ebae517e80da98c3c8 [2024-12-06 03:30:45,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 03:30:45,986 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 03:30:45,987 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 03:30:45,987 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 03:30:45,990 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 03:30:45,991 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:30:45" (1/1) ... [2024-12-06 03:30:45,992 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b35eb60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:30:45, skipping insertion in model container [2024-12-06 03:30:45,992 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:30:45" (1/1) ... [2024-12-06 03:30:46,001 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 03:30:46,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:30:46,112 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 03:30:46,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:30:46,132 INFO L204 MainTranslator]: Completed translation [2024-12-06 03:30:46,132 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:30:46 WrapperNode [2024-12-06 03:30:46,132 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 03:30:46,133 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 03:30:46,133 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 03:30:46,133 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 03:30:46,138 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:30:46" (1/1) ... [2024-12-06 03:30:46,141 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:30:46" (1/1) ... [2024-12-06 03:30:46,152 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2024-12-06 03:30:46,152 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 03:30:46,153 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 03:30:46,153 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 03:30:46,153 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 03:30:46,157 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:30:46" (1/1) ... [2024-12-06 03:30:46,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:30:46" (1/1) ... [2024-12-06 03:30:46,158 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:30:46" (1/1) ... [2024-12-06 03:30:46,158 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:30:46" (1/1) ... [2024-12-06 03:30:46,160 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:30:46" (1/1) ... [2024-12-06 03:30:46,161 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:30:46" (1/1) ... [2024-12-06 03:30:46,164 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:30:46" (1/1) ... [2024-12-06 03:30:46,165 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:30:46" (1/1) ... [2024-12-06 03:30:46,166 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:30:46" (1/1) ... [2024-12-06 03:30:46,167 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 03:30:46,168 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 03:30:46,168 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 03:30:46,168 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 03:30:46,169 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:30:46" (1/1) ... [2024-12-06 03:30:46,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:30:46,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afcebea-9243-4b26-b0ce-ea28616acca3/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 03:30:46,194 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afcebea-9243-4b26-b0ce-ea28616acca3/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 03:30:46,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afcebea-9243-4b26-b0ce-ea28616acca3/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 03:30:46,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 03:30:46,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 03:30:46,272 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 03:30:46,273 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 03:30:46,374 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-12-06 03:30:46,374 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 03:30:46,411 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 03:30:46,411 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-06 03:30:46,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:30:46 BoogieIcfgContainer [2024-12-06 03:30:46,412 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 03:30:46,412 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 03:30:46,413 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 03:30:46,422 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 03:30:46,422 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:30:46" (1/1) ... [2024-12-06 03:30:46,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 03:30:46,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:30:46,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2024-12-06 03:30:46,477 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-12-06 03:30:46,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 03:30:46,479 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:30:46,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:30:46,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:30:46,583 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 03:30:46,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:30:46,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 19 states and 21 transitions. [2024-12-06 03:30:46,603 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2024-12-06 03:30:46,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 03:30:46,603 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:30:46,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:30:46,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:30:46,704 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 03:30:46,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:30:46,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2024-12-06 03:30:46,744 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2024-12-06 03:30:46,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 03:30:46,744 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:30:46,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:30:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:30:46,782 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 03:30:46,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:30:46,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2024-12-06 03:30:46,891 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2024-12-06 03:30:46,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 03:30:46,892 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:30:46,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:30:46,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:30:46,936 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 03:30:47,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:30:47,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 26 states and 35 transitions. [2024-12-06 03:30:47,126 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2024-12-06 03:30:47,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 03:30:47,127 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:30:47,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:30:47,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:30:47,166 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 03:30:47,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:30:47,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 31 states and 45 transitions. [2024-12-06 03:30:47,499 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2024-12-06 03:30:47,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 03:30:47,501 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:30:47,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:30:47,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:30:47,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 03:30:47,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:30:47,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 33 states and 46 transitions. [2024-12-06 03:30:47,678 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2024-12-06 03:30:47,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 03:30:47,679 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:30:47,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:30:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:30:47,735 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 03:30:48,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:30:48,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 41 states and 61 transitions. [2024-12-06 03:30:48,190 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 61 transitions. [2024-12-06 03:30:48,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 03:30:48,190 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:30:48,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:30:48,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:30:48,216 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 03:30:48,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:30:48,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 43 states and 62 transitions. [2024-12-06 03:30:48,343 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 62 transitions. [2024-12-06 03:30:48,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 03:30:48,343 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:30:48,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:30:48,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:30:48,354 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 03:30:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:30:48,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:30:48,382 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 03:30:48,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:30:48,397 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 9 iterations. [2024-12-06 03:30:48,426 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 03:30:48 ImpRootNode [2024-12-06 03:30:48,426 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 03:30:48,427 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 03:30:48,427 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 03:30:48,427 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 03:30:48,427 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:30:46" (3/4) ... [2024-12-06 03:30:48,428 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 03:30:48,460 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 4. [2024-12-06 03:30:48,499 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afcebea-9243-4b26-b0ce-ea28616acca3/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 03:30:48,500 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afcebea-9243-4b26-b0ce-ea28616acca3/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 03:30:48,500 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 03:30:48,500 INFO L158 Benchmark]: Toolchain (without parser) took 2514.38ms. Allocated memory is still 142.6MB. Free memory was 118.1MB in the beginning and 97.1MB in the end (delta: 21.0MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2024-12-06 03:30:48,501 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:30:48,501 INFO L158 Benchmark]: CACSL2BoogieTranslator took 145.52ms. Allocated memory is still 142.6MB. Free memory was 117.9MB in the beginning and 108.0MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:30:48,501 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.33ms. Allocated memory is still 142.6MB. Free memory was 108.0MB in the beginning and 106.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:30:48,501 INFO L158 Benchmark]: Boogie Preprocessor took 14.72ms. Allocated memory is still 142.6MB. Free memory was 106.9MB in the beginning and 106.0MB in the end (delta: 864.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:30:48,502 INFO L158 Benchmark]: RCFGBuilder took 243.59ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 94.0MB in the end (delta: 12.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 03:30:48,502 INFO L158 Benchmark]: CodeCheck took 2013.57ms. Allocated memory is still 142.6MB. Free memory was 94.0MB in the beginning and 101.5MB in the end (delta: -7.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:30:48,502 INFO L158 Benchmark]: Witness Printer took 73.12ms. Allocated memory is still 142.6MB. Free memory was 101.5MB in the beginning and 97.1MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:30:48,504 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, 19 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 268 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 172 mSDsluCounter, 125 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 73 mSDsCounter, 82 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 545 IncrementalHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 82 mSolverCounterUnsat, 52 mSDtfsCounter, 545 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 477 GetRequests, 400 SyntacticMatches, 15 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1370 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 145 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 4/4 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: 24]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int x, y, n; [L15] n = __VERIFIER_nondet_int() [L16] x = __VERIFIER_nondet_int() [L17] y = __VERIFIER_nondet_int() [L18] COND TRUE x >= 0 VAL [n=2147483647, x=1, y=2147483647] [L19] y >= 0 && __VERIFIER_nondet_int() != 0 [L19] y >= 0 && __VERIFIER_nondet_int() != 0 VAL [n=2147483647, x=1, y=2147483647] [L19] COND FALSE !(y >= 0 && __VERIFIER_nondet_int() != 0) [L22] EXPR x - 1 [L22] x = x - 1 VAL [n=2147483647, x=0, y=2147483647] [L23] y <= n && __VERIFIER_nondet_int() != 0 [L23] y <= n && __VERIFIER_nondet_int() != 0 VAL [n=2147483647, x=0, y=2147483647] [L23] COND TRUE y <= n && __VERIFIER_nondet_int() != 0 [L24] y + 1 VAL [n=2147483647, x=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 145.52ms. Allocated memory is still 142.6MB. Free memory was 117.9MB in the beginning and 108.0MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.33ms. Allocated memory is still 142.6MB. Free memory was 108.0MB in the beginning and 106.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.72ms. Allocated memory is still 142.6MB. Free memory was 106.9MB in the beginning and 106.0MB in the end (delta: 864.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 243.59ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 94.0MB in the end (delta: 12.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 2013.57ms. Allocated memory is still 142.6MB. Free memory was 94.0MB in the beginning and 101.5MB in the end (delta: -7.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 73.12ms. Allocated memory is still 142.6MB. Free memory was 101.5MB in the beginning and 97.1MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 03:30:48,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afcebea-9243-4b26-b0ce-ea28616acca3/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)