./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.09.c --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version 4f9af400
extending candidate: java
['java']
extending candidate: /usr/bin/java
['java', '/usr/bin/java']
extending candidate: /opt/oracle-jdk-bin-*/bin/java
['java', '/usr/bin/java']
extending candidate: /opt/openjdk-*/bin/java
['java', '/usr/bin/java']
extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java
['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java']
['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.09.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! overflow) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '64bit', '--witnessprinter.graph.data.programhash', '7a853b3510c5613f54b8d6b23d474c4e32a31e8aca13042a511ee4a733a5c07a']
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.09.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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 7a853b3510c5613f54b8d6b23d474c4e32a31e8aca13042a511ee4a733a5c07a
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-07 19:54:43,971 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-07 19:54:44,061 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf
[2024-11-07 19:54:44,066 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-07 19:54:44,066 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-07 19:54:44,091 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-07 19:54:44,093 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-07 19:54:44,093 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-07 19:54:44,094 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-07 19:54:44,094 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-07 19:54:44,094 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-07 19:54:44,094 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-07 19:54:44,095 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-07 19:54:44,095 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-07 19:54:44,095 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-07 19:54:44,096 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-07 19:54:44,096 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-07 19:54:44,096 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-07 19:54:44,096 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-07 19:54:44,096 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-07 19:54:44,096 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-07 19:54:44,096 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-07 19:54:44,096 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-07 19:54:44,096 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-11-07 19:54:44,096 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-07 19:54:44,096 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-07 19:54:44,096 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-07 19:54:44,096 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-07 19:54:44,096 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-07 19:54:44,096 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-07 19:54:44,097 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-07 19:54:44,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 19:54:44,097 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-07 19:54:44,097 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-07 19:54:44,097 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-07 19:54:44,097 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-07 19:54:44,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-07 19:54:44,097 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-07 19:54:44,097 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-07 19:54:44,097 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-07 19:54:44,097 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-07 19:54:44,097 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux
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 -> 7a853b3510c5613f54b8d6b23d474c4e32a31e8aca13042a511ee4a733a5c07a
[2024-11-07 19:54:44,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-07 19:54:44,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-07 19:54:44,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-07 19:54:44,406 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-07 19:54:44,406 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-07 19:54:44,407 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.09.c
[2024-11-07 19:54:45,736 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-07 19:54:45,927 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-07 19:54:45,928 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.09.c
[2024-11-07 19:54:45,936 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4523fd9ab/d667560ba5a04efeaaeed61f9986421b/FLAG37e7b3055
[2024-11-07 19:54:46,296 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4523fd9ab/d667560ba5a04efeaaeed61f9986421b
[2024-11-07 19:54:46,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-07 19:54:46,298 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-07 19:54:46,299 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-07 19:54:46,299 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-07 19:54:46,302 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-07 19:54:46,303 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:54:46" (1/1) ...
[2024-11-07 19:54:46,303 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d6cc3a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:54:46, skipping insertion in model container
[2024-11-07 19:54:46,303 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:54:46" (1/1) ...
[2024-11-07 19:54:46,312 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-07 19:54:46,419 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 19:54:46,424 INFO L200 MainTranslator]: Completed pre-run
[2024-11-07 19:54:46,435 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 19:54:46,447 INFO L204 MainTranslator]: Completed translation
[2024-11-07 19:54:46,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:54:46 WrapperNode
[2024-11-07 19:54:46,448 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-07 19:54:46,450 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-07 19:54:46,450 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-07 19:54:46,450 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-07 19:54:46,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:54:46" (1/1) ...
[2024-11-07 19:54:46,459 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:54:46" (1/1) ...
[2024-11-07 19:54:46,471 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41
[2024-11-07 19:54:46,471 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-07 19:54:46,472 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-07 19:54:46,472 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-07 19:54:46,472 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-07 19:54:46,478 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:54:46" (1/1) ...
[2024-11-07 19:54:46,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:54:46" (1/1) ...
[2024-11-07 19:54:46,479 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:54:46" (1/1) ...
[2024-11-07 19:54:46,488 INFO L175 MemorySlicer]: No memory access in input program.
[2024-11-07 19:54:46,488 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:54:46" (1/1) ...
[2024-11-07 19:54:46,488 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:54:46" (1/1) ...
[2024-11-07 19:54:46,489 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:54:46" (1/1) ...
[2024-11-07 19:54:46,493 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:54:46" (1/1) ...
[2024-11-07 19:54:46,494 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:54:46" (1/1) ...
[2024-11-07 19:54:46,494 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:54:46" (1/1) ...
[2024-11-07 19:54:46,495 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-07 19:54:46,496 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-07 19:54:46,496 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-07 19:54:46,496 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-07 19:54:46,497 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:54:46" (1/1) ...
[2024-11-07 19:54:46,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 19:54:46,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 19:54:46,526 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-07 19:54:46,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-07 19:54:46,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-07 19:54:46,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-07 19:54:46,616 INFO L238 CfgBuilder]: Building ICFG
[2024-11-07 19:54:46,618 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-07 19:54:46,702 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live.
[2024-11-07 19:54:46,702 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-07 19:54:46,711 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-07 19:54:46,711 INFO L316 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-07 19:54:46,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:54:46 BoogieIcfgContainer
[2024-11-07 19:54:46,712 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-07 19:54:46,714 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-07 19:54:46,714 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-07 19:54:46,719 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-07 19:54:46,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:54:46" (1/3) ...
[2024-11-07 19:54:46,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e067696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:54:46, skipping insertion in model container
[2024-11-07 19:54:46,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:54:46" (2/3) ...
[2024-11-07 19:54:46,721 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e067696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:54:46, skipping insertion in model container
[2024-11-07 19:54:46,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:54:46" (3/3) ...
[2024-11-07 19:54:46,722 INFO L112 eAbstractionObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex3.09.c
[2024-11-07 19:54:46,736 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-07 19:54:46,736 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2024-11-07 19:54:46,785 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-07 19:54:46,799 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@24be439e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-07 19:54:46,799 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-11-07 19:54:46,804 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 10 states have (on average 1.5) internal successors, (15), 12 states have internal predecessors, (15), 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)
[2024-11-07 19:54:46,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2024-11-07 19:54:46,809 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-07 19:54:46,810 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2024-11-07 19:54:46,811 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-11-07 19:54:46,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 19:54:46,816 INFO L85 PathProgramCache]: Analyzing trace with hash 28695781, now seen corresponding path program 1 times
[2024-11-07 19:54:46,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 19:54:46,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652358826]
[2024-11-07 19:54:46,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 19:54:46,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 19:54:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-07 19:54:46,899 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-07 19:54:46,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-07 19:54:46,923 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-07 19:54:46,924 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-07 19:54:46,926 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2024-11-07 19:54:46,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2024-11-07 19:54:46,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-07 19:54:46,933 INFO L407 BasicCegarLoop]: Path program histogram: [1]
[2024-11-07 19:54:46,949 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-07 19:54:46,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 07:54:46 BoogieIcfgContainer
[2024-11-07 19:54:46,954 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-07 19:54:46,955 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-07 19:54:46,955 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-07 19:54:46,956 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-07 19:54:46,957 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:54:46" (3/4) ...
[2024-11-07 19:54:46,958 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample
[2024-11-07 19:54:46,986 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml
[2024-11-07 19:54:46,987 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-07 19:54:46,988 INFO L158 Benchmark]: Toolchain (without parser) took 689.01ms. Allocated memory is still 100.7MB. Free memory was 77.4MB in the beginning and 42.6MB in the end (delta: 34.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB.
[2024-11-07 19:54:46,989 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 19:54:46,989 INFO L158 Benchmark]: CACSL2BoogieTranslator took 149.33ms. Allocated memory is still 100.7MB. Free memory was 77.3MB in the beginning and 67.5MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-07 19:54:46,989 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.33ms. Allocated memory is still 100.7MB. Free memory was 67.4MB in the beginning and 66.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 19:54:46,989 INFO L158 Benchmark]: Boogie Preprocessor took 23.24ms. Allocated memory is still 100.7MB. Free memory was 66.4MB in the beginning and 65.5MB in the end (delta: 844.6kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 19:54:46,990 INFO L158 Benchmark]: RCFGBuilder took 216.24ms. Allocated memory is still 100.7MB. Free memory was 65.4MB in the beginning and 56.6MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-07 19:54:46,990 INFO L158 Benchmark]: TraceAbstraction took 240.32ms. Allocated memory is still 100.7MB. Free memory was 56.0MB in the beginning and 44.4MB in the end (delta: 11.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-07 19:54:46,990 INFO L158 Benchmark]: Witness Printer took 31.56ms. Allocated memory is still 100.7MB. Free memory was 44.3MB in the beginning and 42.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 19:54:46,992 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 149.33ms. Allocated memory is still 100.7MB. Free memory was 77.3MB in the beginning and 67.5MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 21.33ms. Allocated memory is still 100.7MB. Free memory was 67.4MB in the beginning and 66.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 23.24ms. Allocated memory is still 100.7MB. Free memory was 66.4MB in the beginning and 65.5MB in the end (delta: 844.6kB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 216.24ms. Allocated memory is still 100.7MB. Free memory was 65.4MB in the beginning and 56.6MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 240.32ms. Allocated memory is still 100.7MB. Free memory was 56.0MB in the beginning and 44.4MB in the end (delta: 11.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Witness Printer took 31.56ms. Allocated memory is still 100.7MB. Free memory was 44.3MB in the beginning and 42.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- CounterExampleResult [Line: 28]: integer overflow possible
integer overflow possible
We found a FailurePath:
[L23] int x, y, z, oldx;
[L24] x = __VERIFIER_nondet_int()
[L25] y = __VERIFIER_nondet_int()
[L26] z = __VERIFIER_nondet_int()
[L27] oldx = __VERIFIER_nondet_int()
[L28] x > 0 && x < y && x > 2*oldx
VAL [oldx=-1073741825, x=1, z=0]
[L28] 2*oldx
VAL [x=1, z=0]
- UnprovableResult [Line: 28]: 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, 13 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
[2024-11-07 19:54:47,017 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE(OVERFLOW)