./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/signedintegeroverflow-regression/PrefixIncrement.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version 9bd2c7ff
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_06a0b71f-a67a-4d1b-97bd-f8643736dc8e/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a0b71f-a67a-4d1b-97bd-f8643736dc8e/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a0b71f-a67a-4d1b-97bd-f8643736dc8e/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a0b71f-a67a-4d1b-97bd-f8643736dc8e/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/signedintegeroverflow-regression/PrefixIncrement.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a0b71f-a67a-4d1b-97bd-f8643736dc8e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a0b71f-a67a-4d1b-97bd-f8643736dc8e/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bc949f01d3072f8d5a3b015a375618b4a9741f7ee0cd702369b7f784be11a819
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 08:02:59,224 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 08:02:59,353 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a0b71f-a67a-4d1b-97bd-f8643736dc8e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf
[2023-11-19 08:02:59,363 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 08:02:59,364 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 08:02:59,402 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 08:02:59,404 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 08:02:59,405 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 08:02:59,406 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 08:02:59,411 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 08:02:59,412 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 08:02:59,413 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 08:02:59,414 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 08:02:59,416 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 08:02:59,416 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 08:02:59,417 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 08:02:59,417 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 08:02:59,417 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 08:02:59,418 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 08:02:59,418 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 08:02:59,419 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true
[2023-11-19 08:02:59,419 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 08:02:59,420 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 08:02:59,420 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 08:02:59,421 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 08:02:59,422 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 08:02:59,422 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 08:02:59,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 08:02:59,423 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 08:02:59,424 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 08:02:59,425 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 08:02:59,425 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 08:02:59,426 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 08:02:59,426 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 08:02:59,426 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 08:02:59,426 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 08:02:59,427 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 08:02:59,427 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 08:02:59,427 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
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_06a0b71f-a67a-4d1b-97bd-f8643736dc8e/bin/uautomizer-verify-uCwYo4JHxu/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a0b71f-a67a-4d1b-97bd-f8643736dc8e/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc949f01d3072f8d5a3b015a375618b4a9741f7ee0cd702369b7f784be11a819
[2023-11-19 08:02:59,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 08:02:59,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 08:02:59,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 08:02:59,780 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 08:02:59,781 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 08:02:59,783 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a0b71f-a67a-4d1b-97bd-f8643736dc8e/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/signedintegeroverflow-regression/PrefixIncrement.i
[2023-11-19 08:03:02,866 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 08:03:03,188 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 08:03:03,189 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a0b71f-a67a-4d1b-97bd-f8643736dc8e/sv-benchmarks/c/signedintegeroverflow-regression/PrefixIncrement.i
[2023-11-19 08:03:03,203 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a0b71f-a67a-4d1b-97bd-f8643736dc8e/bin/uautomizer-verify-uCwYo4JHxu/data/8ec076f84/0bcd1b0ed3e84bc389759e5af4f56ce0/FLAG0d58f260f
[2023-11-19 08:03:03,217 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a0b71f-a67a-4d1b-97bd-f8643736dc8e/bin/uautomizer-verify-uCwYo4JHxu/data/8ec076f84/0bcd1b0ed3e84bc389759e5af4f56ce0
[2023-11-19 08:03:03,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 08:03:03,221 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 08:03:03,223 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 08:03:03,223 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 08:03:03,232 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 08:03:03,233 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:03" (1/1) ...
[2023-11-19 08:03:03,237 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fc90332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:03, skipping insertion in model container
[2023-11-19 08:03:03,237 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:03" (1/1) ...
[2023-11-19 08:03:03,283 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 08:03:03,586 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 08:03:03,592 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 08:03:03,623 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 08:03:03,651 INFO L206 MainTranslator]: Completed translation
[2023-11-19 08:03:03,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:03 WrapperNode
[2023-11-19 08:03:03,651 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 08:03:03,653 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 08:03:03,653 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 08:03:03,653 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 08:03:03,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:03" (1/1) ...
[2023-11-19 08:03:03,673 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:03" (1/1) ...
[2023-11-19 08:03:03,694 INFO L138 Inliner]: procedures = 104, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11
[2023-11-19 08:03:03,695 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 08:03:03,696 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 08:03:03,696 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 08:03:03,696 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 08:03:03,705 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:03" (1/1) ...
[2023-11-19 08:03:03,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:03" (1/1) ...
[2023-11-19 08:03:03,713 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:03" (1/1) ...
[2023-11-19 08:03:03,713 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:03" (1/1) ...
[2023-11-19 08:03:03,716 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:03" (1/1) ...
[2023-11-19 08:03:03,717 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:03" (1/1) ...
[2023-11-19 08:03:03,718 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:03" (1/1) ...
[2023-11-19 08:03:03,719 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:03" (1/1) ...
[2023-11-19 08:03:03,720 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 08:03:03,721 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 08:03:03,722 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 08:03:03,722 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 08:03:03,723 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:03" (1/1) ...
[2023-11-19 08:03:03,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 08:03:03,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a0b71f-a67a-4d1b-97bd-f8643736dc8e/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:03:03,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a0b71f-a67a-4d1b-97bd-f8643736dc8e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 08:03:03,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a0b71f-a67a-4d1b-97bd-f8643736dc8e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 08:03:03,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 08:03:03,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 08:03:03,884 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 08:03:03,886 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 08:03:03,938 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 08:03:03,947 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 08:03:03,947 INFO L302 CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-19 08:03:03,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:03 BoogieIcfgContainer
[2023-11-19 08:03:03,951 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 08:03:03,953 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 08:03:03,954 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 08:03:03,957 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 08:03:03,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:03:03" (1/3) ...
[2023-11-19 08:03:03,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4324a777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:03:03, skipping insertion in model container
[2023-11-19 08:03:03,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:03" (2/3) ...
[2023-11-19 08:03:03,959 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4324a777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:03:03, skipping insertion in model container
[2023-11-19 08:03:03,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:03" (3/3) ...
[2023-11-19 08:03:03,960 INFO L112 eAbstractionObserver]: Analyzing ICFG PrefixIncrement.i
[2023-11-19 08:03:03,982 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 08:03:03,982 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2023-11-19 08:03:04,030 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 08:03:04,037 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3a617e9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 08:03:04,037 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2023-11-19 08:03:04,041 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 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)
[2023-11-19 08:03:04,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2023-11-19 08:03:04,047 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 08:03:04,048 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1]
[2023-11-19 08:03:04,049 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2023-11-19 08:03:04,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:03:04,058 INFO L85 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times
[2023-11-19 08:03:04,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:03:04,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978834288]
[2023-11-19 08:03:04,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:03:04,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:03:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:03:04,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 08:03:04,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 08:03:04,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978834288]
[2023-11-19 08:03:04,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978834288] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:03:04,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 08:03:04,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 08:03:04,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849980727]
[2023-11-19 08:03:04,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:03:04,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 08:03:04,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 08:03:04,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 08:03:04,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 08:03:04,269 INFO L87 Difference]: Start difference. First operand has 9 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 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 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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)
[2023-11-19 08:03:04,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 08:03:04,288 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions.
[2023-11-19 08:03:04,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 08:03:04,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3
[2023-11-19 08:03:04,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 08:03:04,299 INFO L225 Difference]: With dead ends: 9
[2023-11-19 08:03:04,299 INFO L226 Difference]: Without dead ends: 5
[2023-11-19 08:03:04,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 08:03:04,306 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-19 08:03:04,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 08:03:04,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states.
[2023-11-19 08:03:04,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5.
[2023-11-19 08:03:04,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 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)
[2023-11-19 08:03:04,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4 transitions.
[2023-11-19 08:03:04,334 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 4 transitions. Word has length 3
[2023-11-19 08:03:04,334 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-19 08:03:04,334 INFO L495 AbstractCegarLoop]: Abstraction has 5 states and 4 transitions.
[2023-11-19 08:03:04,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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)
[2023-11-19 08:03:04,335 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 4 transitions.
[2023-11-19 08:03:04,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2023-11-19 08:03:04,336 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-19 08:03:04,336 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2023-11-19 08:03:04,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-19 08:03:04,336 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2023-11-19 08:03:04,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:03:04,338 INFO L85 PathProgramCache]: Analyzing trace with hash 925572, now seen corresponding path program 1 times
[2023-11-19 08:03:04,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:03:04,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733302148]
[2023-11-19 08:03:04,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:03:04,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:03:04,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:03:04,347 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:03:04,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:03:04,368 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 08:03:04,368 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-19 08:03:04,370 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2023-11-19 08:03:04,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2023-11-19 08:03:04,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-19 08:03:04,377 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1]
[2023-11-19 08:03:04,382 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-19 08:03:04,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:03:04 BoogieIcfgContainer
[2023-11-19 08:03:04,400 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-19 08:03:04,400 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 08:03:04,400 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-19 08:03:04,401 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-19 08:03:04,401 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:03" (3/4) ...
[2023-11-19 08:03:04,403 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample
[2023-11-19 08:03:04,456 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a0b71f-a67a-4d1b-97bd-f8643736dc8e/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml
[2023-11-19 08:03:04,456 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 08:03:04,457 INFO L158 Benchmark]: Toolchain (without parser) took 1235.67ms. Allocated memory is still 134.2MB. Free memory was 101.9MB in the beginning and 104.2MB in the end (delta: -2.3MB). Peak memory consumption was 55.0MB. Max. memory is 16.1GB.
[2023-11-19 08:03:04,458 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 100.7MB. Free memory is still 47.8MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 08:03:04,458 INFO L158 Benchmark]: CACSL2BoogieTranslator took 428.93ms. Allocated memory is still 134.2MB. Free memory was 101.4MB in the beginning and 87.3MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2023-11-19 08:03:04,459 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.50ms. Allocated memory is still 134.2MB. Free memory was 87.3MB in the beginning and 85.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 08:03:04,459 INFO L158 Benchmark]: Boogie Preprocessor took 25.03ms. Allocated memory is still 134.2MB. Free memory was 85.7MB in the beginning and 84.7MB in the end (delta: 950.5kB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 08:03:04,460 INFO L158 Benchmark]: RCFGBuilder took 229.80ms. Allocated memory is still 134.2MB. Free memory was 84.7MB in the beginning and 76.3MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2023-11-19 08:03:04,460 INFO L158 Benchmark]: TraceAbstraction took 446.16ms. Allocated memory is still 134.2MB. Free memory was 75.7MB in the beginning and 53.7MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB.
[2023-11-19 08:03:04,461 INFO L158 Benchmark]: Witness Printer took 56.15ms. Allocated memory is still 134.2MB. Free memory was 53.7MB in the beginning and 104.2MB in the end (delta: -50.4MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB.
[2023-11-19 08:03:04,464 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.38ms. Allocated memory is still 100.7MB. Free memory is still 47.8MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 428.93ms. Allocated memory is still 134.2MB. Free memory was 101.4MB in the beginning and 87.3MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 42.50ms. Allocated memory is still 134.2MB. Free memory was 87.3MB in the beginning and 85.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 25.03ms. Allocated memory is still 134.2MB. Free memory was 85.7MB in the beginning and 84.7MB in the end (delta: 950.5kB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 229.80ms. Allocated memory is still 134.2MB. Free memory was 84.7MB in the beginning and 76.3MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 446.16ms. Allocated memory is still 134.2MB. Free memory was 75.7MB in the beginning and 53.7MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB.
* Witness Printer took 56.15ms. Allocated memory is still 134.2MB. Free memory was 53.7MB in the beginning and 104.2MB in the end (delta: -50.4MB). Peak memory consumption was 6.8MB. 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: 333]: integer overflow possible
integer overflow possible
We found a FailurePath:
[L332] int x = 2147483647;
VAL [x=2147483647]
[L333] ++x
VAL [x=2147483647]
- UnprovableResult [Line: 333]: 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, 9 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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!
[2023-11-19 08:03:04,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a0b71f-a67a-4d1b-97bd-f8643736dc8e/bin/uautomizer-verify-uCwYo4JHxu/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)