./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1e5c85-dff9-4fbc-80bd-d626f7b33d2f/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1e5c85-dff9-4fbc-80bd-d626f7b33d2f/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1e5c85-dff9-4fbc-80bd-d626f7b33d2f/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1e5c85-dff9-4fbc-80bd-d626f7b33d2f/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1e5c85-dff9-4fbc-80bd-d626f7b33d2f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1e5c85-dff9-4fbc-80bd-d626f7b33d2f/bin/utaipan-verify-YMUCfTKeje --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 64bit --witnessprinter.graph.data.programhash b7646a22882710466ec3244f9455a19a1dbe784d959581f36adf578939304de7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:53:53,854 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:53:53,970 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1e5c85-dff9-4fbc-80bd-d626f7b33d2f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-09 05:53:53,981 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:53:53,981 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:53:54,010 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:53:54,011 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:53:54,012 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:53:54,012 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:53:54,013 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:53:54,013 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:53:54,014 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:53:54,015 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:53:54,015 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:53:54,016 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:53:54,016 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:53:54,017 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:53:54,017 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:53:54,017 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:53:54,018 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:53:54,018 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:53:54,025 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:53:54,026 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:53:54,026 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:53:54,027 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:53:54,027 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:53:54,027 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:53:54,028 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:53:54,028 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:53:54,028 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:53:54,029 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 05:53:54,029 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:53:54,034 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:53:54,034 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:53:54,034 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:53:54,035 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:53:54,035 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:53:54,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:53:54,036 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:53:54,036 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:53:54,036 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:53:54,037 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:53:54,037 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:53:54,038 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:53:54,038 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:53:54,040 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:53:54,041 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1e5c85-dff9-4fbc-80bd-d626f7b33d2f/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1e5c85-dff9-4fbc-80bd-d626f7b33d2f/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7646a22882710466ec3244f9455a19a1dbe784d959581f36adf578939304de7 [2024-11-09 05:53:54,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:53:54,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:53:54,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:53:54,463 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:53:54,465 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:53:54,466 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1e5c85-dff9-4fbc-80bd-d626f7b33d2f/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c Unable to find full path for "g++" [2024-11-09 05:53:56,834 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:53:57,118 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:53:57,119 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1e5c85-dff9-4fbc-80bd-d626f7b33d2f/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c [2024-11-09 05:53:57,129 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1e5c85-dff9-4fbc-80bd-d626f7b33d2f/bin/utaipan-verify-YMUCfTKeje/data/597a20d7f/2dbcbe30b21447588f1217a098318612/FLAG93162545a [2024-11-09 05:53:57,152 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1e5c85-dff9-4fbc-80bd-d626f7b33d2f/bin/utaipan-verify-YMUCfTKeje/data/597a20d7f/2dbcbe30b21447588f1217a098318612 [2024-11-09 05:53:57,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:53:57,157 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:53:57,158 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:53:57,160 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:53:57,167 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:53:57,168 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:53:57" (1/1) ... [2024-11-09 05:53:57,169 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7473477d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:57, skipping insertion in model container [2024-11-09 05:53:57,173 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:53:57" (1/1) ... [2024-11-09 05:53:57,199 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:53:57,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:53:57,438 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:53:57,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:53:57,473 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:53:57,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:57 WrapperNode [2024-11-09 05:53:57,474 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:53:57,475 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:53:57,475 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:53:57,475 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:53:57,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:57" (1/1) ... [2024-11-09 05:53:57,486 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:57" (1/1) ... [2024-11-09 05:53:57,508 INFO L138 Inliner]: procedures = 6, calls = 5, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 19 [2024-11-09 05:53:57,508 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:53:57,509 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:53:57,510 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:53:57,510 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:53:57,519 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:57" (1/1) ... [2024-11-09 05:53:57,520 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:57" (1/1) ... [2024-11-09 05:53:57,520 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:57" (1/1) ... [2024-11-09 05:53:57,521 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:57" (1/1) ... [2024-11-09 05:53:57,523 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:57" (1/1) ... [2024-11-09 05:53:57,526 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:57" (1/1) ... [2024-11-09 05:53:57,528 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:57" (1/1) ... [2024-11-09 05:53:57,530 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:57" (1/1) ... [2024-11-09 05:53:57,532 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:53:57,533 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:53:57,533 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:53:57,533 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:53:57,535 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:57" (1/1) ... [2024-11-09 05:53:57,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:53:57,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1e5c85-dff9-4fbc-80bd-d626f7b33d2f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:53:57,576 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1e5c85-dff9-4fbc-80bd-d626f7b33d2f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:53:57,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1e5c85-dff9-4fbc-80bd-d626f7b33d2f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:53:57,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:53:57,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:53:57,617 INFO L130 BoogieDeclarations]: Found specification of procedure r1 [2024-11-09 05:53:57,617 INFO L138 BoogieDeclarations]: Found implementation of procedure r1 [2024-11-09 05:53:57,704 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:53:57,707 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:53:57,923 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-09 05:53:57,923 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:53:57,952 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:53:57,952 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 05:53:57,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:53:57 BoogieIcfgContainer [2024-11-09 05:53:57,953 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:53:57,955 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:53:57,955 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:53:57,962 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:53:57,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:53:57" (1/3) ... [2024-11-09 05:53:57,963 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@223352e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:53:57, skipping insertion in model container [2024-11-09 05:53:57,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:53:57" (2/3) ... [2024-11-09 05:53:57,965 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@223352e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:53:57, skipping insertion in model container [2024-11-09 05:53:57,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:53:57" (3/3) ... [2024-11-09 05:53:57,968 INFO L112 eAbstractionObserver]: Analyzing ICFG LeeJonesBen-Amram-POPL2001-Ex1.c [2024-11-09 05:53:57,991 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:53:57,991 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-09 05:53:58,090 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:53:58,101 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;@602a272e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:53:58,101 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-09 05:53:58,108 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 20 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:53:58,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 05:53:58,118 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:53:58,119 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 05:53:58,120 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting r1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [r1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-11-09 05:53:58,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:53:58,129 INFO L85 PathProgramCache]: Analyzing trace with hash 2067035754, now seen corresponding path program 1 times [2024-11-09 05:53:58,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:53:58,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516230750] [2024-11-09 05:53:58,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:53:58,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:53:58,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:53:58,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:53:58,499 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:53:58,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516230750] [2024-11-09 05:53:58,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516230750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:53:58,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:53:58,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:53:58,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456980266] [2024-11-09 05:53:58,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:53:58,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:53:58,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:53:58,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:53:58,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:53:58,546 INFO L87 Difference]: Start difference. First operand has 24 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 20 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:53:58,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:53:58,731 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2024-11-09 05:53:58,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:53:58,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-09 05:53:58,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:53:58,744 INFO L225 Difference]: With dead ends: 44 [2024-11-09 05:53:58,744 INFO L226 Difference]: Without dead ends: 31 [2024-11-09 05:53:58,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:53:58,751 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 23 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:53:58,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 43 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:53:58,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-09 05:53:58,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 23. [2024-11-09 05:53:58,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 20 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:53:58,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2024-11-09 05:53:58,813 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 6 [2024-11-09 05:53:58,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:53:58,814 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2024-11-09 05:53:58,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:53:58,814 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2024-11-09 05:53:58,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 05:53:58,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:53:58,815 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:53:58,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:53:58,816 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting r1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [r1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-11-09 05:53:58,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:53:58,817 INFO L85 PathProgramCache]: Analyzing trace with hash -346401011, now seen corresponding path program 1 times [2024-11-09 05:53:58,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:53:58,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333084872] [2024-11-09 05:53:58,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:53:58,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:53:58,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:53:58,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:53:58,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:53:58,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333084872] [2024-11-09 05:53:58,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333084872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:53:58,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:53:58,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:53:58,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644164212] [2024-11-09 05:53:58,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:53:58,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:53:58,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:53:58,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:53:58,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:53:58,978 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:53:59,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:53:59,121 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2024-11-09 05:53:59,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:53:59,123 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-09 05:53:59,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:53:59,123 INFO L225 Difference]: With dead ends: 23 [2024-11-09 05:53:59,124 INFO L226 Difference]: Without dead ends: 22 [2024-11-09 05:53:59,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:53:59,125 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 18 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:53:59,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 5 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:53:59,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-09 05:53:59,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-11-09 05:53:59,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 19 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:53:59,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2024-11-09 05:53:59,146 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 7 [2024-11-09 05:53:59,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:53:59,151 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2024-11-09 05:53:59,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:53:59,152 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2024-11-09 05:53:59,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 05:53:59,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:53:59,152 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:53:59,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:53:59,154 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting r1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [r1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-11-09 05:53:59,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:53:59,159 INFO L85 PathProgramCache]: Analyzing trace with hash 2116079343, now seen corresponding path program 1 times [2024-11-09 05:53:59,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:53:59,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522286122] [2024-11-09 05:53:59,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:53:59,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:53:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:53:59,181 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:53:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:53:59,225 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 05:53:59,225 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:53:59,228 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location r1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2024-11-09 05:53:59,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location r1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-11-09 05:53:59,237 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location r1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-11-09 05:53:59,237 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location r1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-11-09 05:53:59,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location r1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-11-09 05:53:59,240 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location r1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2024-11-09 05:53:59,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:53:59,247 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-09 05:53:59,290 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:53:59,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:53:59 BoogieIcfgContainer [2024-11-09 05:53:59,299 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:53:59,301 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:53:59,302 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:53:59,302 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:53:59,306 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:53:57" (3/4) ... [2024-11-09 05:53:59,311 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 05:53:59,368 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1e5c85-dff9-4fbc-80bd-d626f7b33d2f/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 05:53:59,369 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:53:59,370 INFO L158 Benchmark]: Toolchain (without parser) took 2212.84ms. Allocated memory was 153.1MB in the beginning and 197.1MB in the end (delta: 44.0MB). Free memory was 119.7MB in the beginning and 161.2MB in the end (delta: -41.5MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2024-11-09 05:53:59,371 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 153.1MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:53:59,371 INFO L158 Benchmark]: CACSL2BoogieTranslator took 315.80ms. Allocated memory is still 153.1MB. Free memory was 119.7MB in the beginning and 108.4MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 05:53:59,372 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.88ms. Allocated memory is still 153.1MB. Free memory was 108.4MB in the beginning and 107.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:53:59,372 INFO L158 Benchmark]: Boogie Preprocessor took 22.73ms. Allocated memory is still 153.1MB. Free memory was 107.2MB in the beginning and 106.2MB in the end (delta: 961.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:53:59,373 INFO L158 Benchmark]: RCFGBuilder took 420.24ms. Allocated memory is still 153.1MB. Free memory was 106.2MB in the beginning and 95.3MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 05:53:59,374 INFO L158 Benchmark]: TraceAbstraction took 1345.20ms. Allocated memory was 153.1MB in the beginning and 197.1MB in the end (delta: 44.0MB). Free memory was 94.6MB in the beginning and 163.3MB in the end (delta: -68.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:53:59,374 INFO L158 Benchmark]: Witness Printer took 67.78ms. Allocated memory is still 197.1MB. Free memory was 163.3MB in the beginning and 161.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:53:59,377 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 153.1MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 315.80ms. Allocated memory is still 153.1MB. Free memory was 119.7MB in the beginning and 108.4MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.88ms. Allocated memory is still 153.1MB. Free memory was 108.4MB in the beginning and 107.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.73ms. Allocated memory is still 153.1MB. Free memory was 107.2MB in the beginning and 106.2MB in the end (delta: 961.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 420.24ms. Allocated memory is still 153.1MB. Free memory was 106.2MB in the beginning and 95.3MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1345.20ms. Allocated memory was 153.1MB in the beginning and 197.1MB in the end (delta: 44.0MB). Free memory was 94.6MB in the beginning and 163.3MB in the end (delta: -68.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 67.78ms. Allocated memory is still 197.1MB. Free memory was 163.3MB in the beginning and 161.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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: 17]: integer overflow possible integer overflow possible We found a FailurePath: [L26] int ls = __VERIFIER_nondet_int(); [L27] COND TRUE ls >= 0 [L28] CALL rev(ls) [L22] CALL r1(ls,0) VAL [\old(a)=0, \old(ls)=2147483647] [L14] COND FALSE !(ls == 0) VAL [\old(a)=0, \old(ls)=2147483647, a=0, ls=2147483647] [L17] ls-1 VAL [\old(a)=0, \old(ls)=2147483647, a=0, ls=2147483647] [L17] ls+1 VAL [\old(a)=0, \old(ls)=2147483647, a=0] - UnprovableResult [Line: 17]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 17]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 17]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 17]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 17]: 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 2 procedures, 24 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 118 IncrementalHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 12 mSDtfsCounter, 118 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 11, 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, 2 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 31 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2024-11-09 05:53:59,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1e5c85-dff9-4fbc-80bd-d626f7b33d2f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)