./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-nla/lcm2-both-t.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bac2940-7a72-402d-ad76-56921d3138dc/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bac2940-7a72-402d-ad76-56921d3138dc/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_9bac2940-7a72-402d-ad76-56921d3138dc/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bac2940-7a72-402d-ad76-56921d3138dc/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-nla/lcm2-both-t.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bac2940-7a72-402d-ad76-56921d3138dc/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bac2940-7a72-402d-ad76-56921d3138dc/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 32bit --witnessprinter.graph.data.programhash f81466ea17a904c8a7b5431bbb2313b9daa463d0ce481677fed2bc40d841f956 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:10:52,718 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:10:52,813 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bac2940-7a72-402d-ad76-56921d3138dc/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 05:10:52,819 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:10:52,820 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:10:52,873 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:10:52,874 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:10:52,874 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:10:52,875 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:10:52,876 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:10:52,876 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:10:52,877 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:10:52,877 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:10:52,878 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:10:52,878 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:10:52,879 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:10:52,879 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:10:52,880 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:10:52,880 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:10:52,881 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:10:52,881 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:10:52,882 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:10:52,883 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:10:52,883 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:10:52,884 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:10:52,884 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:10:52,899 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:10:52,899 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:10:52,900 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:10:52,900 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:10:52,900 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:10:52,901 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:10:52,901 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 05:10:52,901 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:10:52,902 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:10:52,902 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:10:52,903 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:10:52,903 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:10:52,904 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:10:52,904 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:10:52,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:10:52,907 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:10:52,907 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:10:52,908 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:10:52,908 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:10:52,908 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:10:52,908 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:10:52,909 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:10:52,909 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:10:52,909 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_9bac2940-7a72-402d-ad76-56921d3138dc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bac2940-7a72-402d-ad76-56921d3138dc/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f81466ea17a904c8a7b5431bbb2313b9daa463d0ce481677fed2bc40d841f956 [2024-11-09 05:10:53,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:10:53,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:10:53,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:10:53,406 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:10:53,413 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:10:53,414 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bac2940-7a72-402d-ad76-56921d3138dc/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/termination-nla/lcm2-both-t.c Unable to find full path for "g++" [2024-11-09 05:10:55,876 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:10:56,126 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:10:56,127 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bac2940-7a72-402d-ad76-56921d3138dc/sv-benchmarks/c/termination-nla/lcm2-both-t.c [2024-11-09 05:10:56,139 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bac2940-7a72-402d-ad76-56921d3138dc/bin/utaipan-verify-YMUCfTKeje/data/f6ff804ae/8bf2f482f47d488291a1b25f1bb27478/FLAGe67374d86 [2024-11-09 05:10:56,168 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bac2940-7a72-402d-ad76-56921d3138dc/bin/utaipan-verify-YMUCfTKeje/data/f6ff804ae/8bf2f482f47d488291a1b25f1bb27478 [2024-11-09 05:10:56,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:10:56,173 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:10:56,175 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:10:56,175 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:10:56,183 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:10:56,187 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:10:56" (1/1) ... [2024-11-09 05:10:56,188 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41f458d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:56, skipping insertion in model container [2024-11-09 05:10:56,189 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:10:56" (1/1) ... [2024-11-09 05:10:56,221 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:10:56,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:10:56,582 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:10:56,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:10:56,618 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:10:56,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:56 WrapperNode [2024-11-09 05:10:56,619 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:10:56,620 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:10:56,620 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:10:56,621 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:10:56,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:56" (1/1) ... [2024-11-09 05:10:56,635 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:56" (1/1) ... [2024-11-09 05:10:56,657 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2024-11-09 05:10:56,658 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:10:56,659 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:10:56,659 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:10:56,660 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:10:56,673 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:56" (1/1) ... [2024-11-09 05:10:56,673 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:56" (1/1) ... [2024-11-09 05:10:56,674 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:56" (1/1) ... [2024-11-09 05:10:56,675 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:56" (1/1) ... [2024-11-09 05:10:56,678 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:56" (1/1) ... [2024-11-09 05:10:56,685 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:56" (1/1) ... [2024-11-09 05:10:56,686 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:56" (1/1) ... [2024-11-09 05:10:56,687 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:56" (1/1) ... [2024-11-09 05:10:56,689 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:10:56,691 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:10:56,691 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:10:56,691 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:10:56,692 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:56" (1/1) ... [2024-11-09 05:10:56,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:10:56,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bac2940-7a72-402d-ad76-56921d3138dc/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:10:56,736 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bac2940-7a72-402d-ad76-56921d3138dc/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:10:56,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bac2940-7a72-402d-ad76-56921d3138dc/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:10:56,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:10:56,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:10:56,874 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:10:56,877 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:10:57,307 INFO L? ?]: Removed 66 outVars from TransFormulas that were not future-live. [2024-11-09 05:10:57,307 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:10:57,365 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:10:57,369 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:10:57,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:10:57 BoogieIcfgContainer [2024-11-09 05:10:57,370 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:10:57,374 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:10:57,375 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:10:57,379 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:10:57,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:10:56" (1/3) ... [2024-11-09 05:10:57,381 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d8ef8e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:10:57, skipping insertion in model container [2024-11-09 05:10:57,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:56" (2/3) ... [2024-11-09 05:10:57,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d8ef8e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:10:57, skipping insertion in model container [2024-11-09 05:10:57,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:10:57" (3/3) ... [2024-11-09 05:10:57,384 INFO L112 eAbstractionObserver]: Analyzing ICFG lcm2-both-t.c [2024-11-09 05:10:57,415 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:10:57,416 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-11-09 05:10:57,504 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:10:57,512 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;@7a09361b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:10:57,512 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-09 05:10:57,517 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 29 states have (on average 1.896551724137931) internal successors, (55), 51 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:10:57,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 05:10:57,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:10:57,526 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 05:10:57,527 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 05:10:57,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:10:57,537 INFO L85 PathProgramCache]: Analyzing trace with hash 3254427, now seen corresponding path program 1 times [2024-11-09 05:10:57,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:10:57,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220007727] [2024-11-09 05:10:57,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:57,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:10:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:10:57,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1419122621] [2024-11-09 05:10:57,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:57,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:10:57,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bac2940-7a72-402d-ad76-56921d3138dc/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:10:57,697 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bac2940-7a72-402d-ad76-56921d3138dc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:10:57,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bac2940-7a72-402d-ad76-56921d3138dc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:10:57,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:57,765 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:10:57,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:10:57,894 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 05:10:57,894 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:10:57,895 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:10:57,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220007727] [2024-11-09 05:10:57,896 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:10:57,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419122621] [2024-11-09 05:10:57,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419122621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:10:57,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:10:57,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:10:57,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006955917] [2024-11-09 05:10:57,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:10:57,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:10:57,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:10:57,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:10:57,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:10:57,952 INFO L87 Difference]: Start difference. First operand has 52 states, 29 states have (on average 1.896551724137931) internal successors, (55), 51 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:10:58,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:10:58,239 INFO L93 Difference]: Finished difference Result 85 states and 103 transitions. [2024-11-09 05:10:58,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:10:58,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-09 05:10:58,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:10:58,253 INFO L225 Difference]: With dead ends: 85 [2024-11-09 05:10:58,254 INFO L226 Difference]: Without dead ends: 78 [2024-11-09 05:10:58,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:10:58,262 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 27 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:10:58,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 36 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:10:58,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-09 05:10:58,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 51. [2024-11-09 05:10:58,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 29 states have (on average 1.793103448275862) internal successors, (52), 50 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:10:58,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2024-11-09 05:10:58,324 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 4 [2024-11-09 05:10:58,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:10:58,325 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2024-11-09 05:10:58,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:10:58,326 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2024-11-09 05:10:58,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 05:10:58,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:10:58,327 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 05:10:58,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bac2940-7a72-402d-ad76-56921d3138dc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:10:58,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bac2940-7a72-402d-ad76-56921d3138dc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-09 05:10:58,529 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-09 05:10:58,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:10:58,530 INFO L85 PathProgramCache]: Analyzing trace with hash 100887286, now seen corresponding path program 1 times [2024-11-09 05:10:58,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:10:58,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984329197] [2024-11-09 05:10:58,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:58,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:10:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:10:58,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [817255802] [2024-11-09 05:10:58,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:58,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:10:58,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bac2940-7a72-402d-ad76-56921d3138dc/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:10:58,571 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bac2940-7a72-402d-ad76-56921d3138dc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:10:58,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bac2940-7a72-402d-ad76-56921d3138dc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:10:58,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:10:58,634 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:10:58,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:10:58,664 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 05:10:58,665 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:10:58,667 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2024-11-09 05:10:58,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2024-11-09 05:10:58,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2024-11-09 05:10:58,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2024-11-09 05:10:58,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2024-11-09 05:10:58,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2024-11-09 05:10:58,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2024-11-09 05:10:58,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2024-11-09 05:10:58,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2024-11-09 05:10:58,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2024-11-09 05:10:58,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2024-11-09 05:10:58,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2024-11-09 05:10:58,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2024-11-09 05:10:58,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2024-11-09 05:10:58,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2024-11-09 05:10:58,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2024-11-09 05:10:58,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2024-11-09 05:10:58,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2024-11-09 05:10:58,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2024-11-09 05:10:58,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2024-11-09 05:10:58,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2024-11-09 05:10:58,683 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2024-11-09 05:10:58,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bac2940-7a72-402d-ad76-56921d3138dc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:10:58,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bac2940-7a72-402d-ad76-56921d3138dc/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:10:58,887 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 05:10:58,904 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:10:58,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:10:58 BoogieIcfgContainer [2024-11-09 05:10:58,908 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:10:58,909 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:10:58,909 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:10:58,909 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:10:58,910 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:10:57" (3/4) ... [2024-11-09 05:10:58,911 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 05:10:58,959 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bac2940-7a72-402d-ad76-56921d3138dc/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 05:10:58,959 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:10:58,960 INFO L158 Benchmark]: Toolchain (without parser) took 2787.63ms. Allocated memory was 134.2MB in the beginning and 182.5MB in the end (delta: 48.2MB). Free memory was 72.6MB in the beginning and 93.1MB in the end (delta: -20.5MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2024-11-09 05:10:58,961 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 134.2MB. Free memory was 108.6MB in the beginning and 108.4MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:10:58,962 INFO L158 Benchmark]: CACSL2BoogieTranslator took 445.01ms. Allocated memory was 134.2MB in the beginning and 182.5MB in the end (delta: 48.2MB). Free memory was 72.4MB in the beginning and 148.9MB in the end (delta: -76.5MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2024-11-09 05:10:58,962 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.11ms. Allocated memory is still 182.5MB. Free memory was 148.9MB in the beginning and 147.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:10:58,963 INFO L158 Benchmark]: Boogie Preprocessor took 30.66ms. Allocated memory is still 182.5MB. Free memory was 147.6MB in the beginning and 146.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:10:58,964 INFO L158 Benchmark]: RCFGBuilder took 679.57ms. Allocated memory is still 182.5MB. Free memory was 146.2MB in the beginning and 131.5MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 05:10:58,964 INFO L158 Benchmark]: TraceAbstraction took 1534.06ms. Allocated memory is still 182.5MB. Free memory was 130.8MB in the beginning and 95.2MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-11-09 05:10:58,965 INFO L158 Benchmark]: Witness Printer took 50.74ms. Allocated memory is still 182.5MB. Free memory was 95.2MB in the beginning and 93.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:10:58,968 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 134.2MB. Free memory was 108.6MB in the beginning and 108.4MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 445.01ms. Allocated memory was 134.2MB in the beginning and 182.5MB in the end (delta: 48.2MB). Free memory was 72.4MB in the beginning and 148.9MB in the end (delta: -76.5MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.11ms. Allocated memory is still 182.5MB. Free memory was 148.9MB in the beginning and 147.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.66ms. Allocated memory is still 182.5MB. Free memory was 147.6MB in the beginning and 146.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 679.57ms. Allocated memory is still 182.5MB. Free memory was 146.2MB in the beginning and 131.5MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1534.06ms. Allocated memory is still 182.5MB. Free memory was 130.8MB in the beginning and 95.2MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 50.74ms. Allocated memory is still 182.5MB. Free memory was 95.2MB in the beginning and 93.1MB 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: 42]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int a, b; [L21] int x, y, u, v; [L22] a = __VERIFIER_nondet_unsigned_int() [L23] b = __VERIFIER_nondet_unsigned_int() [L30] COND FALSE !(a < 1 || b < 1 || a > 65535 || b > 65535) [L34] x = a [L35] y = b [L36] u = b [L37] v = a VAL [a=65535, b=32769, u=32769, v=65535, x=65535, y=32769] [L39] COND TRUE 1 VAL [a=65535, b=32769, u=32769, v=65535, x=65535, y=32769] [L42] x*u VAL [a=65535, b=32769, v=65535, y=32769] - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 49]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 49]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 50]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 50]: 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 1 procedures, 52 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 71 IncrementalHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 21 mSDtfsCounter, 71 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 1 MinimizatonAttempts, 27 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 2 NumberOfNonLiveVariables, 20 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 05:10:59,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bac2940-7a72-402d-ad76-56921d3138dc/bin/utaipan-verify-YMUCfTKeje/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)