./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_409174c7-3b3e-449b-99d7-a93132fadca8/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409174c7-3b3e-449b-99d7-a93132fadca8/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409174c7-3b3e-449b-99d7-a93132fadca8/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409174c7-3b3e-449b-99d7-a93132fadca8/bin/ukojak-verify-ENZ3QT5qd3/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_409174c7-3b3e-449b-99d7-a93132fadca8/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409174c7-3b3e-449b-99d7-a93132fadca8/bin/ukojak-verify-ENZ3QT5qd3 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 68a9d192571af20a9caff88653fa376c42853b2f0586dd5e85037ba45183dc65 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 03:47:42,888 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 03:47:42,952 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409174c7-3b3e-449b-99d7-a93132fadca8/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-25 03:47:42,959 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 03:47:42,959 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 03:47:43,000 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 03:47:43,001 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 03:47:43,001 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 03:47:43,002 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 03:47:43,002 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 03:47:43,002 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 03:47:43,002 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 03:47:43,002 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 03:47:43,002 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 03:47:43,002 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 03:47:43,002 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 03:47:43,004 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 03:47:43,004 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 03:47:43,005 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 03:47:43,005 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 03:47:43,005 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 03:47:43,005 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 03:47:43,006 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 03:47:43,006 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 03:47:43,006 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 03:47:43,006 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 03:47:43,006 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:47:43,006 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 03:47:43,007 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 03:47:43,007 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 03:47:43,007 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 03:47:43,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 03:47:43,007 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_409174c7-3b3e-449b-99d7-a93132fadca8/bin/ukojak-verify-ENZ3QT5qd3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68a9d192571af20a9caff88653fa376c42853b2f0586dd5e85037ba45183dc65 [2024-11-25 03:47:43,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 03:47:43,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 03:47:43,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 03:47:43,360 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 03:47:43,360 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 03:47:43,361 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409174c7-3b3e-449b-99d7-a93132fadca8/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1b.c [2024-11-25 03:47:46,508 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409174c7-3b3e-449b-99d7-a93132fadca8/bin/ukojak-verify-ENZ3QT5qd3/data/b6afba765/b1074b0242ec4fc280fcf784f1faa213/FLAGf93a6827d [2024-11-25 03:47:46,786 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 03:47:46,787 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409174c7-3b3e-449b-99d7-a93132fadca8/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1b.c [2024-11-25 03:47:46,803 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409174c7-3b3e-449b-99d7-a93132fadca8/bin/ukojak-verify-ENZ3QT5qd3/data/b6afba765/b1074b0242ec4fc280fcf784f1faa213/FLAGf93a6827d [2024-11-25 03:47:46,833 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409174c7-3b3e-449b-99d7-a93132fadca8/bin/ukojak-verify-ENZ3QT5qd3/data/b6afba765/b1074b0242ec4fc280fcf784f1faa213 [2024-11-25 03:47:46,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 03:47:46,845 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 03:47:46,846 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 03:47:46,846 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 03:47:46,851 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 03:47:46,852 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:47:46" (1/1) ... [2024-11-25 03:47:46,853 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f7b6d34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:46, skipping insertion in model container [2024-11-25 03:47:46,853 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:47:46" (1/1) ... [2024-11-25 03:47:46,867 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 03:47:47,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:47:47,049 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 03:47:47,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:47:47,078 INFO L204 MainTranslator]: Completed translation [2024-11-25 03:47:47,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:47 WrapperNode [2024-11-25 03:47:47,078 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 03:47:47,079 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 03:47:47,079 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 03:47:47,079 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 03:47:47,086 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:47" (1/1) ... [2024-11-25 03:47:47,090 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:47" (1/1) ... [2024-11-25 03:47:47,106 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2024-11-25 03:47:47,106 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 03:47:47,107 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 03:47:47,107 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 03:47:47,107 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 03:47:47,114 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:47" (1/1) ... [2024-11-25 03:47:47,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:47" (1/1) ... [2024-11-25 03:47:47,114 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:47" (1/1) ... [2024-11-25 03:47:47,115 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:47" (1/1) ... [2024-11-25 03:47:47,116 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:47" (1/1) ... [2024-11-25 03:47:47,117 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:47" (1/1) ... [2024-11-25 03:47:47,122 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:47" (1/1) ... [2024-11-25 03:47:47,123 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:47" (1/1) ... [2024-11-25 03:47:47,123 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:47" (1/1) ... [2024-11-25 03:47:47,124 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 03:47:47,125 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 03:47:47,125 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 03:47:47,125 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 03:47:47,126 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:47:47" (1/1) ... [2024-11-25 03:47:47,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:47:47,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409174c7-3b3e-449b-99d7-a93132fadca8/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 03:47:47,161 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409174c7-3b3e-449b-99d7-a93132fadca8/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 03:47:47,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409174c7-3b3e-449b-99d7-a93132fadca8/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 03:47:47,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 03:47:47,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 03:47:47,282 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 03:47:47,284 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 03:47:47,458 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-25 03:47:47,458 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 03:47:47,518 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 03:47:47,519 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-25 03:47:47,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:47:47 BoogieIcfgContainer [2024-11-25 03:47:47,521 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 03:47:47,522 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 03:47:47,523 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 03:47:47,532 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 03:47:47,533 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:47:47" (1/1) ... [2024-11-25 03:47:47,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 03:47:47,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:47:47,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2024-11-25 03:47:47,606 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-11-25 03:47:47,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-25 03:47:47,608 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:47:47,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:47:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:47:47,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:47:47,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:47:47,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 19 states and 21 transitions. [2024-11-25 03:47:47,743 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2024-11-25 03:47:47,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-25 03:47:47,744 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:47:47,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:47:47,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:47:47,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:47:47,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:47:47,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2024-11-25 03:47:47,963 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2024-11-25 03:47:47,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-25 03:47:47,963 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:47:47,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:47:47,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:47:48,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:47:48,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:47:48,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2024-11-25 03:47:48,179 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2024-11-25 03:47:48,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-25 03:47:48,179 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:47:48,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:47:48,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:47:48,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:47:48,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:47:48,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 26 states and 35 transitions. [2024-11-25 03:47:48,586 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2024-11-25 03:47:48,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-25 03:47:48,586 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:47:48,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:47:48,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:47:48,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:47:49,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:47:49,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 31 states and 45 transitions. [2024-11-25 03:47:49,114 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2024-11-25 03:47:49,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-25 03:47:49,118 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:47:49,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:47:49,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:47:49,192 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 03:47:49,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:47:49,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 33 states and 46 transitions. [2024-11-25 03:47:49,411 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2024-11-25 03:47:49,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-25 03:47:49,411 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:47:49,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:47:49,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:47:49,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:47:50,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:47:50,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 41 states and 61 transitions. [2024-11-25 03:47:50,141 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 61 transitions. [2024-11-25 03:47:50,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-25 03:47:50,142 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:47:50,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:47:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:47:50,170 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 03:47:50,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:47:50,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 43 states and 62 transitions. [2024-11-25 03:47:50,375 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 62 transitions. [2024-11-25 03:47:50,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-25 03:47:50,376 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:47:50,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:47:50,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:47:50,386 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 03:47:50,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:47:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:47:50,419 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 03:47:50,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:47:50,433 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 9 iterations. [2024-11-25 03:47:50,457 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 03:47:50 ImpRootNode [2024-11-25 03:47:50,457 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 03:47:50,457 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 03:47:50,457 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 03:47:50,458 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 03:47:50,458 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:47:47" (3/4) ... [2024-11-25 03:47:50,459 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-25 03:47:50,498 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 4. [2024-11-25 03:47:50,546 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409174c7-3b3e-449b-99d7-a93132fadca8/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-25 03:47:50,546 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409174c7-3b3e-449b-99d7-a93132fadca8/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-25 03:47:50,547 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 03:47:50,548 INFO L158 Benchmark]: Toolchain (without parser) took 3703.48ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 97.5MB in the end (delta: 9.2MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2024-11-25 03:47:50,548 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 167.8MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:47:50,549 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.82ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 96.5MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 03:47:50,549 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.95ms. Allocated memory is still 142.6MB. Free memory was 96.2MB in the beginning and 95.4MB in the end (delta: 764.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:47:50,549 INFO L158 Benchmark]: Boogie Preprocessor took 18.02ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 94.5MB in the end (delta: 990.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:47:50,550 INFO L158 Benchmark]: RCFGBuilder took 395.88ms. Allocated memory is still 142.6MB. Free memory was 94.5MB in the beginning and 82.4MB in the end (delta: 12.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 03:47:50,550 INFO L158 Benchmark]: CodeCheck took 2935.06ms. Allocated memory is still 142.6MB. Free memory was 82.4MB in the beginning and 101.5MB in the end (delta: -19.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:47:50,551 INFO L158 Benchmark]: Witness Printer took 89.37ms. Allocated memory is still 142.6MB. Free memory was 101.5MB in the beginning and 97.5MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:47:50,553 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: 2.9s, 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, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 172 mSDsluCounter, 125 SdHoareTripleChecker+Invalid, 1.1s 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, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s 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 0.38ms. Allocated memory is still 167.8MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.82ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 96.5MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.95ms. Allocated memory is still 142.6MB. Free memory was 96.2MB in the beginning and 95.4MB in the end (delta: 764.5kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.02ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 94.5MB in the end (delta: 990.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 395.88ms. Allocated memory is still 142.6MB. Free memory was 94.5MB in the beginning and 82.4MB in the end (delta: 12.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 2935.06ms. Allocated memory is still 142.6MB. Free memory was 82.4MB in the beginning and 101.5MB in the end (delta: -19.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 89.37ms. Allocated memory is still 142.6MB. Free memory was 101.5MB in the beginning and 97.5MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-25 03:47:50,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409174c7-3b3e-449b-99d7-a93132fadca8/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)