./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbff4055-a7a4-42b4-b56a-6ed8ca453796/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbff4055-a7a4-42b4-b56a-6ed8ca453796/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbff4055-a7a4-42b4-b56a-6ed8ca453796/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbff4055-a7a4-42b4-b56a-6ed8ca453796/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbff4055-a7a4-42b4-b56a-6ed8ca453796/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbff4055-a7a4-42b4-b56a-6ed8ca453796/bin/utaipan-verify-sOmjnqqW8E --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash db1e722f73dbd7795cdbaca4c816f6c8a0f90138145d9f90bf0f222b7dd371eb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:55:57,566 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:55:57,626 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbff4055-a7a4-42b4-b56a-6ed8ca453796/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 03:55:57,631 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:55:57,631 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:55:57,661 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:55:57,661 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:55:57,661 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:55:57,662 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:55:57,662 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:55:57,662 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:55:57,662 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:55:57,662 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:55:57,662 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:55:57,662 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:55:57,662 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:55:57,663 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:55:57,663 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:55:57,663 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:55:57,663 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:55:57,663 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:55:57,663 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:55:57,664 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:55:57,664 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:55:57,664 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:55:57,664 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:55:57,664 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:55:57,664 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:55:57,664 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:55:57,664 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:55:57,664 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:55:57,664 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:55:57,665 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 03:55:57,665 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:55:57,665 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:55:57,665 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:55:57,665 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:55:57,665 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:55:57,665 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:55:57,665 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:55:57,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:55:57,665 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:55:57,665 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:55:57,666 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:55:57,666 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:55:57,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:55:57,666 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:55:57,666 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:55:57,666 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:55:57,666 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_fbff4055-a7a4-42b4-b56a-6ed8ca453796/bin/utaipan-verify-sOmjnqqW8E 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 -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db1e722f73dbd7795cdbaca4c816f6c8a0f90138145d9f90bf0f222b7dd371eb [2024-11-14 03:55:57,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:55:57,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:55:57,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:55:57,999 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:55:57,999 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:55:58,001 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbff4055-a7a4-42b4-b56a-6ed8ca453796/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c Unable to find full path for "g++" [2024-11-14 03:56:00,078 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:56:00,337 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:56:00,338 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbff4055-a7a4-42b4-b56a-6ed8ca453796/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2024-11-14 03:56:00,348 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbff4055-a7a4-42b4-b56a-6ed8ca453796/bin/utaipan-verify-sOmjnqqW8E/data/41987e5dd/1cd7b0a9d3164047b9276683d68a23bd/FLAGb7a8e25c9 [2024-11-14 03:56:00,362 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbff4055-a7a4-42b4-b56a-6ed8ca453796/bin/utaipan-verify-sOmjnqqW8E/data/41987e5dd/1cd7b0a9d3164047b9276683d68a23bd [2024-11-14 03:56:00,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:56:00,365 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:56:00,367 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:56:00,367 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:56:00,371 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:56:00,372 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:56:00" (1/1) ... [2024-11-14 03:56:00,373 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78841e8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:00, skipping insertion in model container [2024-11-14 03:56:00,373 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:56:00" (1/1) ... [2024-11-14 03:56:00,398 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:56:00,678 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:56:00,690 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:56:00,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:56:00,791 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:56:00,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:00 WrapperNode [2024-11-14 03:56:00,792 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:56:00,793 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:56:00,793 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:56:00,794 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:56:00,800 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:00" (1/1) ... [2024-11-14 03:56:00,813 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:00" (1/1) ... [2024-11-14 03:56:00,866 INFO L138 Inliner]: procedures = 24, calls = 30, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 462 [2024-11-14 03:56:00,866 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:56:00,867 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:56:00,867 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:56:00,867 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:56:00,877 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:00" (1/1) ... [2024-11-14 03:56:00,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:00" (1/1) ... [2024-11-14 03:56:00,881 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:00" (1/1) ... [2024-11-14 03:56:00,885 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:00" (1/1) ... [2024-11-14 03:56:00,895 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:00" (1/1) ... [2024-11-14 03:56:00,899 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:00" (1/1) ... [2024-11-14 03:56:00,901 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:00" (1/1) ... [2024-11-14 03:56:00,902 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:00" (1/1) ... [2024-11-14 03:56:00,905 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:56:00,906 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:56:00,906 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:56:00,907 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:56:00,908 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:00" (1/1) ... [2024-11-14 03:56:00,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:56:00,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbff4055-a7a4-42b4-b56a-6ed8ca453796/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:56:00,953 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbff4055-a7a4-42b4-b56a-6ed8ca453796/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:56:00,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbff4055-a7a4-42b4-b56a-6ed8ca453796/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:56:00,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:56:00,989 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2024-11-14 03:56:00,989 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2024-11-14 03:56:00,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:56:00,989 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2024-11-14 03:56:00,989 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2024-11-14 03:56:00,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:56:00,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:56:01,141 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:56:01,143 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:56:01,179 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-14 03:56:01,183 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-14 03:56:01,188 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-14 03:56:01,569 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##82: assume !false;havoc KeWaitForSingleObject_~tmp_ndt_4~0#1; [2024-11-14 03:56:01,569 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##81: assume false; [2024-11-14 03:56:01,570 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##58: assume !false; [2024-11-14 03:56:01,570 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##57: assume false; [2024-11-14 03:56:01,570 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume !false; [2024-11-14 03:56:01,570 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##13: assume false; [2024-11-14 03:56:01,572 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-14 03:56:01,643 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2024-11-14 03:56:01,643 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2024-11-14 03:56:01,689 INFO L? ?]: Removed 134 outVars from TransFormulas that were not future-live. [2024-11-14 03:56:01,690 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:56:01,979 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:56:01,979 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 03:56:01,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:56:01 BoogieIcfgContainer [2024-11-14 03:56:01,980 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:56:01,983 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:56:01,983 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:56:01,989 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:56:01,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:56:00" (1/3) ... [2024-11-14 03:56:01,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f6a1f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:56:01, skipping insertion in model container [2024-11-14 03:56:01,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:00" (2/3) ... [2024-11-14 03:56:01,991 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f6a1f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:56:01, skipping insertion in model container [2024-11-14 03:56:01,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:56:01" (3/3) ... [2024-11-14 03:56:01,993 INFO L112 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl1.cil.c [2024-11-14 03:56:02,010 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:56:02,011 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG kbfiltr_simpl1.cil.c that has 3 procedures, 101 locations, 1 initial locations, 0 loop locations, and 16 error locations. [2024-11-14 03:56:02,084 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:56:02,097 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=FINITE_AUTOMATA, 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;@f4b6983, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:56:02,098 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-14 03:56:02,101 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 68 states have (on average 1.7205882352941178) internal successors, (117), 94 states have internal predecessors, (117), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 03:56:02,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-14 03:56:02,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:56:02,107 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-14 03:56:02,107 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 03:56:02,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:56:02,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1324367422, now seen corresponding path program 1 times [2024-11-14 03:56:02,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:56:02,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179724505] [2024-11-14 03:56:02,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:02,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:56:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:56:02,223 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 03:56:02,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:56:02,281 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 03:56:02,283 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 03:56:02,285 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2024-11-14 03:56:02,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2024-11-14 03:56:02,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2024-11-14 03:56:02,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2024-11-14 03:56:02,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2024-11-14 03:56:02,291 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2024-11-14 03:56:02,291 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2024-11-14 03:56:02,291 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2024-11-14 03:56:02,291 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2024-11-14 03:56:02,291 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2024-11-14 03:56:02,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2024-11-14 03:56:02,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2024-11-14 03:56:02,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2024-11-14 03:56:02,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2024-11-14 03:56:02,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2024-11-14 03:56:02,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2024-11-14 03:56:02,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:56:02,299 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 03:56:02,340 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:56:02,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:56:02 BoogieIcfgContainer [2024-11-14 03:56:02,347 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:56:02,347 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:56:02,347 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:56:02,347 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:56:02,349 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:56:01" (3/4) ... [2024-11-14 03:56:02,350 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-14 03:56:02,417 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbff4055-a7a4-42b4-b56a-6ed8ca453796/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 03:56:02,418 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:56:02,419 INFO L158 Benchmark]: Toolchain (without parser) took 2053.66ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 52.7MB in the end (delta: 39.8MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. [2024-11-14 03:56:02,419 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 117.4MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:56:02,419 INFO L158 Benchmark]: CACSL2BoogieTranslator took 425.72ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 77.4MB in the end (delta: 14.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:56:02,420 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.67ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 74.9MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:56:02,420 INFO L158 Benchmark]: Boogie Preprocessor took 38.69ms. Allocated memory is still 117.4MB. Free memory was 74.9MB in the beginning and 73.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:56:02,420 INFO L158 Benchmark]: RCFGBuilder took 1073.38ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 73.8MB in the end (delta: -368.1kB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. [2024-11-14 03:56:02,420 INFO L158 Benchmark]: TraceAbstraction took 363.31ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 56.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:56:02,421 INFO L158 Benchmark]: Witness Printer took 70.58ms. Allocated memory is still 117.4MB. Free memory was 56.5MB in the beginning and 52.7MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:56:02,423 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64ms. Allocated memory is still 117.4MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 425.72ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 77.4MB in the end (delta: 14.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.67ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 74.9MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.69ms. Allocated memory is still 117.4MB. Free memory was 74.9MB in the beginning and 73.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1073.38ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 73.8MB in the end (delta: -368.1kB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. * TraceAbstraction took 363.31ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 56.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 70.58ms. Allocated memory is still 117.4MB. Free memory was 56.5MB in the beginning and 52.7MB in the end (delta: 3.8MB). There was no memory consumed. 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 - CounterExampleResult [Line: 169]: integer overflow possible integer overflow possible We found a FailurePath: [L18] int KernelMode ; [L19] int Executive ; [L20] int s ; [L21] int UNLOADED ; [L22] int NP ; [L23] int DC ; [L24] int SKIP1 ; [L25] int SKIP2 ; [L26] int MPR1 ; [L27] int MPR3 ; [L28] int IPC ; [L29] int pended ; [L30] int compFptr ; [L31] int compRegistered ; [L32] int lowerDriverReturn ; [L33] int setEventCalled ; [L34] int customIrp ; [L35] int myStatus ; [L289] int status ; [L290] int irp = __VERIFIER_nondet_int() ; [L291] int pirp ; [L292] int pirp__IoStatus__Status ; [L293] int irp_choice = __VERIFIER_nondet_int() ; [L294] int devobj = __VERIFIER_nondet_int() ; [L295] int __cil_tmp8 ; [L300] KernelMode = 0 [L301] Executive = 0 [L302] s = 0 [L303] UNLOADED = 0 [L304] NP = 0 [L305] DC = 0 [L306] SKIP1 = 0 [L307] SKIP2 = 0 [L308] MPR1 = 0 [L309] MPR3 = 0 [L310] IPC = 0 [L311] pended = 0 [L312] compFptr = 0 [L313] compRegistered = 0 [L314] lowerDriverReturn = 0 [L315] setEventCalled = 0 [L316] customIrp = 0 [L317] myStatus = 0 [L319] status = 0 [L320] pirp = irp [L321] CALL _BLAST_init() [L55] UNLOADED = 0 [L56] NP = 1 [L57] DC = 2 [L58] SKIP1 = 3 [L59] SKIP2 = 4 [L60] MPR1 = 5 [L61] MPR3 = 6 [L62] IPC = 7 [L63] s = UNLOADED [L64] pended = 0 [L65] compFptr = 0 [L66] compRegistered = 0 [L67] lowerDriverReturn = 0 [L68] setEventCalled = 0 [L69] customIrp = 0 [L321] RET _BLAST_init() [L323] COND TRUE status >= 0 [L324] s = NP [L325] customIrp = 0 [L326] setEventCalled = customIrp [L327] lowerDriverReturn = setEventCalled [L328] compRegistered = lowerDriverReturn [L329] pended = compRegistered [L330] pirp__IoStatus__Status = 0 [L331] myStatus = 0 [L332] COND TRUE irp_choice == 0 [L333] pirp__IoStatus__Status = -1073741637 [L334] myStatus = -1073741637 [L337] CALL stub_driver_init() [L41] s = NP [L42] pended = 0 [L43] compFptr = 0 [L44] compRegistered = 0 [L45] lowerDriverReturn = 0 [L46] setEventCalled = 0 [L47] customIrp = 0 [L337] RET stub_driver_init() [L340] COND TRUE status >= 0 [L341] __cil_tmp8 = 1 VAL [DC=2, Executive=0, IPC=7, KernelMode=0, MPR1=5, MPR3=6, NP=1, SKIP1=3, SKIP2=4, UNLOADED=0, __cil_tmp8=1, compFptr=0, compRegistered=0, customIrp=0, devobj=0, lowerDriverReturn=0, myStatus=-1073741637, pended=0, pirp=0, s=1, setEventCalled=0] [L346] COND FALSE !(! __cil_tmp8) [L350] int tmp_ndt_1; [L351] tmp_ndt_1 = __VERIFIER_nondet_int() [L352] COND TRUE tmp_ndt_1 == 3 [L359] CALL KbFilter_PnP(devobj, pirp) [L76] int devExt ; [L77] int irpStack ; [L78] int status ; [L79] int event = __VERIFIER_nondet_int() ; [L80] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L81] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L82] int irpStack__MinorFunction = __VERIFIER_nondet_int() ; [L83] int devExt__TopOfStack = __VERIFIER_nondet_int() ; [L84] int devExt__Started ; [L85] int devExt__Removed ; [L86] int devExt__SurpriseRemoved ; [L87] int Irp__IoStatus__Status ; [L88] int Irp__IoStatus__Information ; [L89] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L90] int irpSp ; [L91] int nextIrpSp ; [L92] int nextIrpSp__Control ; [L93] int irpSp___0 ; [L94] int irpSp__Context ; [L95] int irpSp__Control ; [L96] long __cil_tmp23 ; [L99] status = 0 [L100] devExt = DeviceObject__DeviceExtension [L101] irpStack = Irp__Tail__Overlay__CurrentStackLocation VAL [DC=2, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=-2147483648, KernelMode=0, MPR1=5, MPR3=6, NP=1, SKIP1=3, SKIP2=4, UNLOADED=0, compFptr=0, compRegistered=0, customIrp=0, devExt__TopOfStack=0, event=0, irpStack__MinorFunction=0, lowerDriverReturn=0, myStatus=-1073741637, pended=0, s=1, setEventCalled=0] [L102] COND TRUE irpStack__MinorFunction == 0 [L168] irpSp = Irp__Tail__Overlay__CurrentStackLocation VAL [DC=2, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=-2147483648, KernelMode=0, MPR1=5, MPR3=6, NP=1, SKIP1=3, SKIP2=4, UNLOADED=0, compFptr=0, compRegistered=0, customIrp=0, devExt__TopOfStack=0, event=0, lowerDriverReturn=0, myStatus=-1073741637, pended=0, s=1, setEventCalled=0] [L169] Irp__Tail__Overlay__CurrentStackLocation - 1 VAL [DC=2, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=0, KernelMode=0, MPR1=5, MPR3=6, NP=1, SKIP1=3, SKIP2=4, UNLOADED=0, compFptr=0, compRegistered=0, customIrp=0, devExt__TopOfStack=0, event=0, lowerDriverReturn=0, myStatus=-1073741637, pended=0, s=1, setEventCalled=0] - UnprovableResult [Line: 169]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 185]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 185]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 224]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 224]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 225]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 225]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 240]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 240]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 241]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 241]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 255]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 255]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 256]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 256]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 101 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=101occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 RESULT: Ultimate proved your program to be incorrect! [2024-11-14 03:56:02,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbff4055-a7a4-42b4-b56a-6ed8ca453796/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)