./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_66_good.i --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_c388d858-6992-429e-880f-38a05cd6e28c/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c388d858-6992-429e-880f-38a05cd6e28c/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c388d858-6992-429e-880f-38a05cd6e28c/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c388d858-6992-429e-880f-38a05cd6e28c/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_66_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c388d858-6992-429e-880f-38a05cd6e28c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c388d858-6992-429e-880f-38a05cd6e28c/bin/uautomizer-verify-aQ6SnzHsRB --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 025b08e9c231f37bed4b6238b54bc194d9224d167fc6df5ac1fe71bf334dad72 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:31:42,119 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:31:42,260 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c388d858-6992-429e-880f-38a05cd6e28c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-27 23:31:42,273 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:31:42,274 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:31:42,319 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:31:42,319 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:31:42,319 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:31:42,321 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:31:42,322 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:31:42,323 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:31:42,323 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:31:42,324 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:31:42,324 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:31:42,325 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:31:42,326 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:31:42,326 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:31:42,326 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:31:42,326 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:31:42,327 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:31:42,327 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:31:42,327 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:31:42,327 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 23:31:42,327 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:31:42,327 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:31:42,327 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:31:42,328 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:31:42,328 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:31:42,328 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:31:42,328 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:31:42,328 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:31:42,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:31:42,329 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:31:42,329 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:31:42,329 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:31:42,329 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:31:42,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:31:42,329 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:31:42,329 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:31:42,329 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:31:42,329 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:31:42,329 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:31:42,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:31:42,330 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:31:42,330 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:31:42,330 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:31:42,330 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:31:42,330 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_c388d858-6992-429e-880f-38a05cd6e28c/bin/uautomizer-verify-aQ6SnzHsRB 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 -> Automizer 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 -> 025b08e9c231f37bed4b6238b54bc194d9224d167fc6df5ac1fe71bf334dad72 [2024-11-27 23:31:42,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:31:42,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:31:42,796 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:31:42,799 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:31:42,800 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:31:42,801 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c388d858-6992-429e-880f-38a05cd6e28c/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_66_good.i [2024-11-27 23:31:46,271 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c388d858-6992-429e-880f-38a05cd6e28c/bin/uautomizer-verify-aQ6SnzHsRB/data/6e8a6a770/8e3d9da5e942418587b9a2b64c9d16d7/FLAG766ed3bd8 [2024-11-27 23:31:46,811 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:31:46,812 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c388d858-6992-429e-880f-38a05cd6e28c/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_66_good.i [2024-11-27 23:31:46,839 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c388d858-6992-429e-880f-38a05cd6e28c/bin/uautomizer-verify-aQ6SnzHsRB/data/6e8a6a770/8e3d9da5e942418587b9a2b64c9d16d7/FLAG766ed3bd8 [2024-11-27 23:31:46,857 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c388d858-6992-429e-880f-38a05cd6e28c/bin/uautomizer-verify-aQ6SnzHsRB/data/6e8a6a770/8e3d9da5e942418587b9a2b64c9d16d7 [2024-11-27 23:31:46,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:31:46,862 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:31:46,864 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:31:46,864 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:31:46,870 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:31:46,871 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:31:46" (1/1) ... [2024-11-27 23:31:46,873 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fef4a0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:46, skipping insertion in model container [2024-11-27 23:31:46,873 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:31:46" (1/1) ... [2024-11-27 23:31:46,942 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:31:48,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:31:48,101 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:31:48,253 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:31:48,428 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:31:48,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48 WrapperNode [2024-11-27 23:31:48,429 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:31:48,430 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:31:48,431 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:31:48,431 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:31:48,439 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48" (1/1) ... [2024-11-27 23:31:48,473 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48" (1/1) ... [2024-11-27 23:31:48,511 INFO L138 Inliner]: procedures = 502, calls = 42, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 92 [2024-11-27 23:31:48,511 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:31:48,514 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:31:48,514 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:31:48,514 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:31:48,526 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48" (1/1) ... [2024-11-27 23:31:48,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48" (1/1) ... [2024-11-27 23:31:48,532 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48" (1/1) ... [2024-11-27 23:31:48,565 INFO L175 MemorySlicer]: Split 5 memory accesses to 3 slices as follows [1, 2, 2]. 40 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-11-27 23:31:48,566 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48" (1/1) ... [2024-11-27 23:31:48,566 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48" (1/1) ... [2024-11-27 23:31:48,579 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48" (1/1) ... [2024-11-27 23:31:48,585 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48" (1/1) ... [2024-11-27 23:31:48,587 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48" (1/1) ... [2024-11-27 23:31:48,589 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48" (1/1) ... [2024-11-27 23:31:48,591 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48" (1/1) ... [2024-11-27 23:31:48,594 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:31:48,595 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:31:48,595 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:31:48,595 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:31:48,597 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48" (1/1) ... [2024-11-27 23:31:48,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:31:48,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c388d858-6992-429e-880f-38a05cd6e28c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:48,676 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c388d858-6992-429e-880f-38a05cd6e28c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:31:48,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c388d858-6992-429e-880f-38a05cd6e28c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:31:48,727 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2024-11-27 23:31:48,727 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2024-11-27 23:31:48,727 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-27 23:31:48,728 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-27 23:31:48,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 23:31:48,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 23:31:48,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 23:31:48,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-27 23:31:48,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:31:48,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:31:48,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:31:48,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 23:31:48,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 23:31:48,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 23:31:48,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-27 23:31:48,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:31:48,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 23:31:48,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-27 23:31:48,965 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:31:48,967 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:31:49,239 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-11-27 23:31:49,239 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:31:49,252 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:31:49,252 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-27 23:31:49,253 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:31:49 BoogieIcfgContainer [2024-11-27 23:31:49,254 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:31:49,257 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:31:49,258 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:31:49,264 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:31:49,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:31:46" (1/3) ... [2024-11-27 23:31:49,266 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@122cdab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:31:49, skipping insertion in model container [2024-11-27 23:31:49,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:48" (2/3) ... [2024-11-27 23:31:49,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@122cdab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:31:49, skipping insertion in model container [2024-11-27 23:31:49,270 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:31:49" (3/3) ... [2024-11-27 23:31:49,272 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_66_good.i [2024-11-27 23:31:49,293 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:31:49,295 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_predec_66_good.i that has 3 procedures, 38 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2024-11-27 23:31:49,389 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:31:49,410 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6235459e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:31:49,411 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-27 23:31:49,416 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 25 states have (on average 1.28) internal successors, (32), 31 states have internal predecessors, (32), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 23:31:49,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-27 23:31:49,426 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:49,427 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:49,428 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-27 23:31:49,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:49,436 INFO L85 PathProgramCache]: Analyzing trace with hash 806298795, now seen corresponding path program 1 times [2024-11-27 23:31:49,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:49,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388055886] [2024-11-27 23:31:49,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:49,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:49,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:50,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:50,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:50,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388055886] [2024-11-27 23:31:50,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388055886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:50,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:50,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:31:50,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087447525] [2024-11-27 23:31:50,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:50,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:31:50,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:50,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:31:50,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:31:50,237 INFO L87 Difference]: Start difference. First operand has 38 states, 25 states have (on average 1.28) internal successors, (32), 31 states have internal predecessors, (32), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:31:50,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:50,275 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2024-11-27 23:31:50,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:31:50,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2024-11-27 23:31:50,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:50,285 INFO L225 Difference]: With dead ends: 38 [2024-11-27 23:31:50,285 INFO L226 Difference]: Without dead ends: 26 [2024-11-27 23:31:50,289 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:31:50,293 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 1 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:50,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 78 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:31:50,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-27 23:31:50,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-27 23:31:50,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 21 states have internal predecessors, (22), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 23:31:50,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2024-11-27 23:31:50,332 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 9 [2024-11-27 23:31:50,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:50,337 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2024-11-27 23:31:50,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:31:50,337 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2024-11-27 23:31:50,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-27 23:31:50,338 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:50,338 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:50,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:31:50,339 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-27 23:31:50,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:50,340 INFO L85 PathProgramCache]: Analyzing trace with hash -774541083, now seen corresponding path program 1 times [2024-11-27 23:31:50,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:50,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822275267] [2024-11-27 23:31:50,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:50,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:50,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:50,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:50,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822275267] [2024-11-27 23:31:50,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822275267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:50,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:50,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:31:50,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670257935] [2024-11-27 23:31:50,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:50,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:31:50,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:50,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:31:50,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:31:50,655 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:31:50,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:50,666 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2024-11-27 23:31:50,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:31:50,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2024-11-27 23:31:50,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:50,667 INFO L225 Difference]: With dead ends: 26 [2024-11-27 23:31:50,667 INFO L226 Difference]: Without dead ends: 25 [2024-11-27 23:31:50,668 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:31:50,668 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:50,669 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:31:50,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-27 23:31:50,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-27 23:31:50,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 20 states have internal predecessors, (21), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 23:31:50,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2024-11-27 23:31:50,673 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 10 [2024-11-27 23:31:50,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:50,673 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2024-11-27 23:31:50,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:31:50,674 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2024-11-27 23:31:50,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-27 23:31:50,674 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:50,674 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:50,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:31:50,675 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-27 23:31:50,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:50,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1756454954, now seen corresponding path program 1 times [2024-11-27 23:31:50,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:50,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878106649] [2024-11-27 23:31:50,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:50,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:50,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:50,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:50,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878106649] [2024-11-27 23:31:50,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878106649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:50,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:50,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:31:50,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738336099] [2024-11-27 23:31:50,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:50,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:31:50,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:50,806 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:31:50,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:31:50,808 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:31:50,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:50,827 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2024-11-27 23:31:50,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:31:50,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-11-27 23:31:50,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:50,828 INFO L225 Difference]: With dead ends: 25 [2024-11-27 23:31:50,828 INFO L226 Difference]: Without dead ends: 24 [2024-11-27 23:31:50,829 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:31:50,830 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 1 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:50,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 46 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:31:50,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-27 23:31:50,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-11-27 23:31:50,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 23:31:50,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2024-11-27 23:31:50,840 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 21 [2024-11-27 23:31:50,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:50,840 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2024-11-27 23:31:50,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:31:50,841 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2024-11-27 23:31:50,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-27 23:31:50,842 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:50,842 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:50,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:31:50,842 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-27 23:31:50,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:50,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1384471343, now seen corresponding path program 1 times [2024-11-27 23:31:50,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:50,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492069036] [2024-11-27 23:31:50,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:50,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:50,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:51,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:51,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:51,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492069036] [2024-11-27 23:31:51,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492069036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:51,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:51,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:31:51,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923737751] [2024-11-27 23:31:51,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:51,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:31:51,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:51,725 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:31:51,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:31:51,727 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:31:51,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:51,770 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2024-11-27 23:31:51,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:31:51,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2024-11-27 23:31:51,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:51,772 INFO L225 Difference]: With dead ends: 24 [2024-11-27 23:31:51,772 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 23:31:51,773 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:31:51,774 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:51,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 62 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:31:51,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 23:31:51,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 23:31:51,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:51,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 23:31:51,778 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2024-11-27 23:31:51,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:51,779 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 23:31:51,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:31:51,779 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 23:31:51,779 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 23:31:51,783 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-11-27 23:31:51,784 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-11-27 23:31:51,784 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-11-27 23:31:51,785 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-11-27 23:31:51,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:31:51,790 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-27 23:31:51,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 23:31:51,832 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 23:31:51,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:31:51 BoogieIcfgContainer [2024-11-27 23:31:51,844 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 23:31:51,845 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:31:51,845 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:31:51,845 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:31:51,847 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:31:49" (3/4) ... [2024-11-27 23:31:51,852 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 23:31:51,858 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2024-11-27 23:31:51,858 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2024-11-27 23:31:51,866 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-27 23:31:51,867 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-27 23:31:51,867 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-27 23:31:51,867 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 23:31:51,980 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c388d858-6992-429e-880f-38a05cd6e28c/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 23:31:51,981 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c388d858-6992-429e-880f-38a05cd6e28c/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 23:31:51,981 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:31:51,983 INFO L158 Benchmark]: Toolchain (without parser) took 5119.65ms. Allocated memory is still 142.6MB. Free memory was 113.9MB in the beginning and 68.6MB in the end (delta: 45.3MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. [2024-11-27 23:31:51,984 INFO L158 Benchmark]: CDTParser took 1.17ms. Allocated memory is still 117.4MB. Free memory was 74.6MB in the beginning and 74.4MB in the end (delta: 195.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:31:51,985 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1565.39ms. Allocated memory is still 142.6MB. Free memory was 113.9MB in the beginning and 52.4MB in the end (delta: 61.5MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2024-11-27 23:31:51,986 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.26ms. Allocated memory is still 142.6MB. Free memory was 52.1MB in the beginning and 49.6MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:31:51,986 INFO L158 Benchmark]: Boogie Preprocessor took 80.13ms. Allocated memory is still 142.6MB. Free memory was 49.6MB in the beginning and 47.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:31:51,986 INFO L158 Benchmark]: RCFGBuilder took 659.08ms. Allocated memory is still 142.6MB. Free memory was 47.6MB in the beginning and 102.3MB in the end (delta: -54.7MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2024-11-27 23:31:51,986 INFO L158 Benchmark]: TraceAbstraction took 2586.86ms. Allocated memory is still 142.6MB. Free memory was 102.3MB in the beginning and 74.6MB in the end (delta: 27.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-27 23:31:51,987 INFO L158 Benchmark]: Witness Printer took 136.35ms. Allocated memory is still 142.6MB. Free memory was 73.4MB in the beginning and 68.6MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:31:51,992 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.17ms. Allocated memory is still 117.4MB. Free memory was 74.6MB in the beginning and 74.4MB in the end (delta: 195.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1565.39ms. Allocated memory is still 142.6MB. Free memory was 113.9MB in the beginning and 52.4MB in the end (delta: 61.5MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.26ms. Allocated memory is still 142.6MB. Free memory was 52.1MB in the beginning and 49.6MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 80.13ms. Allocated memory is still 142.6MB. Free memory was 49.6MB in the beginning and 47.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 659.08ms. Allocated memory is still 142.6MB. Free memory was 47.6MB in the beginning and 102.3MB in the end (delta: -54.7MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2586.86ms. Allocated memory is still 142.6MB. Free memory was 102.3MB in the beginning and 74.6MB in the end (delta: 27.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 136.35ms. Allocated memory is still 142.6MB. Free memory was 73.4MB in the beginning and 68.6MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1595]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1595]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1605]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1605]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 38 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 234 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 123 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 111 mSDtfsCounter, 20 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 88 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-27 23:31:52,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c388d858-6992-429e-880f-38a05cd6e28c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE