./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_42_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_7131381f-0c45-4e09-bf26-4b78f23ca899/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7131381f-0c45-4e09-bf26-4b78f23ca899/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_7131381f-0c45-4e09-bf26-4b78f23ca899/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7131381f-0c45-4e09-bf26-4b78f23ca899/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_42_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7131381f-0c45-4e09-bf26-4b78f23ca899/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_7131381f-0c45-4e09-bf26-4b78f23ca899/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 27e3d4fd15638d70353082831a8193dd8bbd63a4b0c60bd2a9eb75e2f57652b0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:50:56,218 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:50:56,282 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7131381f-0c45-4e09-bf26-4b78f23ca899/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-28 03:50:56,288 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:50:56,291 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:50:56,332 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:50:56,333 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:50:56,334 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:50:56,334 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:50:56,334 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:50:56,335 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:50:56,335 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:50:56,336 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:50:56,336 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:50:56,337 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:50:56,337 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:50:56,337 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:50:56,337 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:50:56,337 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:50:56,338 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:50:56,338 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:50:56,338 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:50:56,338 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 03:50:56,338 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:50:56,338 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:50:56,338 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:50:56,338 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:50:56,339 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:50:56,339 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:50:56,339 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:50:56,339 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:50:56,339 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:50:56,340 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:50:56,340 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:50:56,340 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:50:56,340 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:50:56,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:50:56,340 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:50:56,340 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:50:56,340 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:50:56,340 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:50:56,341 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:50:56,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:50:56,341 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:50:56,341 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:50:56,341 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:50:56,341 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:50:56,341 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_7131381f-0c45-4e09-bf26-4b78f23ca899/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 -> 27e3d4fd15638d70353082831a8193dd8bbd63a4b0c60bd2a9eb75e2f57652b0 [2024-11-28 03:50:56,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:50:56,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:50:56,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:50:56,674 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:50:56,674 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:50:56,676 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7131381f-0c45-4e09-bf26-4b78f23ca899/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_42_good.i [2024-11-28 03:50:59,583 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7131381f-0c45-4e09-bf26-4b78f23ca899/bin/uautomizer-verify-aQ6SnzHsRB/data/d9ddbb5dd/3328a5ca3a8f46f49c23dc34b90adada/FLAGe064ce683 [2024-11-28 03:51:00,018 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:51:00,019 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7131381f-0c45-4e09-bf26-4b78f23ca899/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_42_good.i [2024-11-28 03:51:00,053 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7131381f-0c45-4e09-bf26-4b78f23ca899/bin/uautomizer-verify-aQ6SnzHsRB/data/d9ddbb5dd/3328a5ca3a8f46f49c23dc34b90adada/FLAGe064ce683 [2024-11-28 03:51:00,159 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7131381f-0c45-4e09-bf26-4b78f23ca899/bin/uautomizer-verify-aQ6SnzHsRB/data/d9ddbb5dd/3328a5ca3a8f46f49c23dc34b90adada [2024-11-28 03:51:00,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:51:00,162 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:51:00,164 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:51:00,164 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:51:00,168 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:51:00,169 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:51:00" (1/1) ... [2024-11-28 03:51:00,172 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66777090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:00, skipping insertion in model container [2024-11-28 03:51:00,172 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:51:00" (1/1) ... [2024-11-28 03:51:00,233 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:51:01,086 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:51:01,096 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:51:01,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:51:01,365 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:51:01,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:01 WrapperNode [2024-11-28 03:51:01,367 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:51:01,368 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:51:01,368 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:51:01,369 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:51:01,379 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:01" (1/1) ... [2024-11-28 03:51:01,410 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:01" (1/1) ... [2024-11-28 03:51:01,442 INFO L138 Inliner]: procedures = 501, calls = 30, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 68 [2024-11-28 03:51:01,443 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:51:01,443 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:51:01,443 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:51:01,443 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:51:01,455 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:01" (1/1) ... [2024-11-28 03:51:01,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:01" (1/1) ... [2024-11-28 03:51:01,459 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:01" (1/1) ... [2024-11-28 03:51:01,476 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-28 03:51:01,476 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:01" (1/1) ... [2024-11-28 03:51:01,476 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:01" (1/1) ... [2024-11-28 03:51:01,480 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:01" (1/1) ... [2024-11-28 03:51:01,481 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:01" (1/1) ... [2024-11-28 03:51:01,482 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:01" (1/1) ... [2024-11-28 03:51:01,484 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:01" (1/1) ... [2024-11-28 03:51:01,484 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:01" (1/1) ... [2024-11-28 03:51:01,486 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:51:01,487 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:51:01,487 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:51:01,487 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:51:01,488 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:01" (1/1) ... [2024-11-28 03:51:01,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:51:01,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7131381f-0c45-4e09-bf26-4b78f23ca899/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:51:01,533 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7131381f-0c45-4e09-bf26-4b78f23ca899/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:51:01,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7131381f-0c45-4e09-bf26-4b78f23ca899/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:51:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2024-11-28 03:51:01,562 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2024-11-28 03:51:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-28 03:51:01,562 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-28 03:51:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:51:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:51:01,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:51:01,708 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:51:01,710 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:51:01,880 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-11-28 03:51:01,880 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:51:01,891 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:51:01,891 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 03:51:01,892 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:51:01 BoogieIcfgContainer [2024-11-28 03:51:01,892 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:51:01,894 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:51:01,894 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:51:01,899 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:51:01,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:51:00" (1/3) ... [2024-11-28 03:51:01,900 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a7b2212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:51:01, skipping insertion in model container [2024-11-28 03:51:01,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:01" (2/3) ... [2024-11-28 03:51:01,901 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a7b2212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:51:01, skipping insertion in model container [2024-11-28 03:51:01,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:51:01" (3/3) ... [2024-11-28 03:51:01,902 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_predec_42_good.i [2024-11-28 03:51:01,918 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:51:01,919 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fscanf_predec_42_good.i that has 3 procedures, 35 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2024-11-28 03:51:01,972 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:51:01,985 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;@2e7d3825, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:51:01,985 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-28 03:51:01,989 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 28 states have internal predecessors, (29), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 03:51:01,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-28 03:51:01,995 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:51:01,996 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:51:01,996 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)] === [2024-11-28 03:51:02,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:51:02,002 INFO L85 PathProgramCache]: Analyzing trace with hash -968591363, now seen corresponding path program 1 times [2024-11-28 03:51:02,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:51:02,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302404925] [2024-11-28 03:51:02,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:51:02,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:51:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:51:02,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:51:02,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:51:02,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302404925] [2024-11-28 03:51:02,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302404925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:51:02,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:51:02,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:51:02,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342330141] [2024-11-28 03:51:02,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:51:02,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:51:02,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:51:02,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:51:02,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:51:02,275 INFO L87 Difference]: Start difference. First operand has 35 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 28 states have internal predecessors, (29), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-11-28 03:51:02,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:51:02,322 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2024-11-28 03:51:02,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:51:02,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 11 [2024-11-28 03:51:02,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:51:02,331 INFO L225 Difference]: With dead ends: 35 [2024-11-28 03:51:02,331 INFO L226 Difference]: Without dead ends: 25 [2024-11-28 03:51:02,338 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 [2024-11-28 03:51:02,341 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 1 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:51:02,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 66 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:51:02,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-28 03:51:02,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-28 03:51:02,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.2352941176470589) 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) [2024-11-28 03:51:02,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2024-11-28 03:51:02,384 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 11 [2024-11-28 03:51:02,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:51:02,386 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2024-11-28 03:51:02,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-11-28 03:51:02,387 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2024-11-28 03:51:02,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-28 03:51:02,389 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:51:02,389 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:51:02,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:51:02,390 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)] === [2024-11-28 03:51:02,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:51:02,390 INFO L85 PathProgramCache]: Analyzing trace with hash 38438872, now seen corresponding path program 1 times [2024-11-28 03:51:02,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:51:02,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642788796] [2024-11-28 03:51:02,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:51:02,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:51:02,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:51:02,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:51:02,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:51:02,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642788796] [2024-11-28 03:51:02,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642788796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:51:02,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:51:02,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:51:02,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834274679] [2024-11-28 03:51:02,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:51:02,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:51:02,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:51:02,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:51:02,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:51:02,577 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-11-28 03:51:02,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:51:02,593 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2024-11-28 03:51:02,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:51:02,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 12 [2024-11-28 03:51:02,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:51:02,595 INFO L225 Difference]: With dead ends: 25 [2024-11-28 03:51:02,596 INFO L226 Difference]: Without dead ends: 24 [2024-11-28 03:51:02,596 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 [2024-11-28 03:51:02,597 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:51:02,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:51:02,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-28 03:51:02,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-11-28 03:51:02,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.1764705882352942) 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) [2024-11-28 03:51:02,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2024-11-28 03:51:02,605 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 12 [2024-11-28 03:51:02,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:51:02,607 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2024-11-28 03:51:02,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-11-28 03:51:02,608 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2024-11-28 03:51:02,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-28 03:51:02,609 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:51:02,609 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:51:02,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:51:02,609 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)] === [2024-11-28 03:51:02,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:51:02,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1585696761, now seen corresponding path program 1 times [2024-11-28 03:51:02,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:51:02,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877997583] [2024-11-28 03:51:02,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:51:02,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:51:02,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:51:02,812 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:51:02,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:51:02,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877997583] [2024-11-28 03:51:02,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877997583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:51:02,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:51:02,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:51:02,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782414110] [2024-11-28 03:51:02,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:51:02,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:51:02,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:51:02,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:51:02,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:51:02,814 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-11-28 03:51:02,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:51:02,829 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2024-11-28 03:51:02,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:51:02,832 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 18 [2024-11-28 03:51:02,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:51:02,833 INFO L225 Difference]: With dead ends: 24 [2024-11-28 03:51:02,833 INFO L226 Difference]: Without dead ends: 23 [2024-11-28 03:51:02,833 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:51:02,834 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 1 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:51:02,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 65 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:51:02,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-11-28 03:51:02,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-11-28 03:51:02,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 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) [2024-11-28 03:51:02,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2024-11-28 03:51:02,842 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 18 [2024-11-28 03:51:02,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:51:02,842 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2024-11-28 03:51:02,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-11-28 03:51:02,842 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2024-11-28 03:51:02,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-28 03:51:02,843 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:51:02,843 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:51:02,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:51:02,843 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)] === [2024-11-28 03:51:02,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:51:02,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1911959401, now seen corresponding path program 1 times [2024-11-28 03:51:02,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:51:02,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511718152] [2024-11-28 03:51:02,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:51:02,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:51:02,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:51:02,945 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:51:02,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:51:02,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511718152] [2024-11-28 03:51:02,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511718152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:51:02,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:51:02,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:51:02,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036817404] [2024-11-28 03:51:02,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:51:02,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:51:02,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:51:02,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:51:02,948 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:51:02,948 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-28 03:51:02,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:51:02,956 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2024-11-28 03:51:02,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:51:02,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 19 [2024-11-28 03:51:02,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:51:02,957 INFO L225 Difference]: With dead ends: 23 [2024-11-28 03:51:02,957 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 03:51:02,957 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 [2024-11-28 03:51:02,958 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:51:02,958 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:51:02,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 03:51:02,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 03:51:02,959 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) [2024-11-28 03:51:02,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 03:51:02,959 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2024-11-28 03:51:02,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:51:02,960 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 03:51:02,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-28 03:51:02,960 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 03:51:02,960 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 03:51:02,964 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-11-28 03:51:02,965 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-11-28 03:51:02,965 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-11-28 03:51:02,965 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-11-28 03:51:02,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:51:02,968 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:51:02,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 03:51:02,995 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:51:03,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:51:03 BoogieIcfgContainer [2024-11-28 03:51:03,000 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:51:03,001 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:51:03,001 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:51:03,001 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:51:03,002 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:51:01" (3/4) ... [2024-11-28 03:51:03,004 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 03:51:03,007 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2024-11-28 03:51:03,007 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2024-11-28 03:51:03,011 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-28 03:51:03,011 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-28 03:51:03,011 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 03:51:03,089 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7131381f-0c45-4e09-bf26-4b78f23ca899/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:51:03,089 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7131381f-0c45-4e09-bf26-4b78f23ca899/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:51:03,089 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:51:03,090 INFO L158 Benchmark]: Toolchain (without parser) took 2927.67ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 60.3MB in the end (delta: 28.9MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2024-11-28 03:51:03,090 INFO L158 Benchmark]: CDTParser took 0.81ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:51:03,091 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1204.12ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 79.4MB in the end (delta: 9.7MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2024-11-28 03:51:03,091 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.47ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 76.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:51:03,091 INFO L158 Benchmark]: Boogie Preprocessor took 43.14ms. Allocated memory is still 117.4MB. Free memory was 76.7MB in the beginning and 75.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:51:03,091 INFO L158 Benchmark]: RCFGBuilder took 404.77ms. Allocated memory is still 117.4MB. Free memory was 75.1MB in the beginning and 62.7MB in the end (delta: 12.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:51:03,092 INFO L158 Benchmark]: TraceAbstraction took 1106.88ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 65.4MB in the end (delta: -3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:51:03,092 INFO L158 Benchmark]: Witness Printer took 88.25ms. Allocated memory is still 117.4MB. Free memory was 65.4MB in the beginning and 60.3MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:51:03,094 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1204.12ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 79.4MB in the end (delta: 9.7MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.47ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 76.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.14ms. Allocated memory is still 117.4MB. Free memory was 76.7MB in the beginning and 75.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 404.77ms. Allocated memory is still 117.4MB. Free memory was 75.1MB in the beginning and 62.7MB in the end (delta: 12.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1106.88ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 65.4MB in the end (delta: -3.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 88.25ms. Allocated memory is still 117.4MB. Free memory was 65.4MB in the beginning and 60.3MB in the end (delta: 5.2MB). 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: 1576]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1576]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1559]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1559]: 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, 35 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 218 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 116 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 102 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred 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, 0.5s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 78 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 8/8 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! [2024-11-28 03:51:03,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7131381f-0c45-4e09-bf26-4b78f23ca899/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE