./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.14.c --full-output -ea --architecture 64bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version 03d7b7b3
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.14.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --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 b0bbc3acecaa791dd53bbaa4d2825502155fb802997ecb3651df900910512ee0
--- Real Ultimate output ---
This is Ultimate 0.2.2-dev-03d7b7b
[2022-02-21 03:05:05,457 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-02-21 03:05:05,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-02-21 03:05:05,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-02-21 03:05:05,491 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-02-21 03:05:05,493 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-02-21 03:05:05,494 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-02-21 03:05:05,496 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-02-21 03:05:05,498 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-02-21 03:05:05,501 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-02-21 03:05:05,501 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-02-21 03:05:05,502 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-02-21 03:05:05,502 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-02-21 03:05:05,504 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-02-21 03:05:05,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-02-21 03:05:05,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-02-21 03:05:05,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-02-21 03:05:05,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-02-21 03:05:05,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-02-21 03:05:05,514 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-02-21 03:05:05,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-02-21 03:05:05,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-02-21 03:05:05,517 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-02-21 03:05:05,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-02-21 03:05:05,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-02-21 03:05:05,522 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-02-21 03:05:05,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-02-21 03:05:05,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-02-21 03:05:05,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-02-21 03:05:05,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-02-21 03:05:05,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-02-21 03:05:05,526 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-02-21 03:05:05,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-02-21 03:05:05,527 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-02-21 03:05:05,528 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-02-21 03:05:05,528 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-02-21 03:05:05,529 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-02-21 03:05:05,529 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-02-21 03:05:05,530 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-02-21 03:05:05,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-02-21 03:05:05,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-02-21 03:05:05,531 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf
[2022-02-21 03:05:05,554 INFO L113 SettingsManager]: Loading preferences was successful
[2022-02-21 03:05:05,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-21 03:05:05,555 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-02-21 03:05:05,555 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-02-21 03:05:05,556 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-02-21 03:05:05,556 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-02-21 03:05:05,556 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-02-21 03:05:05,556 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-02-21 03:05:05,556 INFO L138 SettingsManager]: * Use SBE=true
[2022-02-21 03:05:05,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-21 03:05:05,557 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2022-02-21 03:05:05,557 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-02-21 03:05:05,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-02-21 03:05:05,558 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-02-21 03:05:05,558 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-21 03:05:05,558 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-02-21 03:05:05,558 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true
[2022-02-21 03:05:05,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-02-21 03:05:05,558 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-02-21 03:05:05,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-02-21 03:05:05,560 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-21 03:05:05,563 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-02-21 03:05:05,563 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-02-21 03:05:05,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-21 03:05:05,564 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-21 03:05:05,564 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-02-21 03:05:05,564 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-02-21 03:05:05,564 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-02-21 03:05:05,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-02-21 03:05:05,565 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-02-21 03:05:05,565 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0bbc3acecaa791dd53bbaa4d2825502155fb802997ecb3651df900910512ee0
[2022-02-21 03:05:05,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-21 03:05:05,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-21 03:05:05,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-21 03:05:05,764 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-02-21 03:05:05,765 INFO L275 PluginConnector]: CDTParser initialized
[2022-02-21 03:05:05,766 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.14.c
[2022-02-21 03:05:05,832 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2250ae48c/e2e2c91409464edbafa15ca1f4c006d5/FLAG23e3fd995
[2022-02-21 03:05:06,191 INFO L306 CDTParser]: Found 1 translation units.
[2022-02-21 03:05:06,191 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.14.c
[2022-02-21 03:05:06,195 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2250ae48c/e2e2c91409464edbafa15ca1f4c006d5/FLAG23e3fd995
[2022-02-21 03:05:06,204 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2250ae48c/e2e2c91409464edbafa15ca1f4c006d5
[2022-02-21 03:05:06,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-21 03:05:06,207 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-02-21 03:05:06,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-02-21 03:05:06,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-02-21 03:05:06,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-02-21 03:05:06,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:05:06" (1/1) ...
[2022-02-21 03:05:06,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a6e0fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:05:06, skipping insertion in model container
[2022-02-21 03:05:06,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:05:06" (1/1) ...
[2022-02-21 03:05:06,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-02-21 03:05:06,229 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-02-21 03:05:06,356 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-21 03:05:06,360 INFO L203 MainTranslator]: Completed pre-run
[2022-02-21 03:05:06,378 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-21 03:05:06,387 INFO L208 MainTranslator]: Completed translation
[2022-02-21 03:05:06,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:05:06 WrapperNode
[2022-02-21 03:05:06,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-02-21 03:05:06,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-02-21 03:05:06,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-02-21 03:05:06,389 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-02-21 03:05:06,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:05:06" (1/1) ...
[2022-02-21 03:05:06,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:05:06" (1/1) ...
[2022-02-21 03:05:06,416 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23
[2022-02-21 03:05:06,416 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-02-21 03:05:06,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-21 03:05:06,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-21 03:05:06,417 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-02-21 03:05:06,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:05:06" (1/1) ...
[2022-02-21 03:05:06,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:05:06" (1/1) ...
[2022-02-21 03:05:06,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:05:06" (1/1) ...
[2022-02-21 03:05:06,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:05:06" (1/1) ...
[2022-02-21 03:05:06,431 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:05:06" (1/1) ...
[2022-02-21 03:05:06,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:05:06" (1/1) ...
[2022-02-21 03:05:06,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:05:06" (1/1) ...
[2022-02-21 03:05:06,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-21 03:05:06,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-21 03:05:06,440 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-02-21 03:05:06,440 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-02-21 03:05:06,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:05:06" (1/1) ...
[2022-02-21 03:05:06,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-21 03:05:06,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-21 03:05:06,471 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-02-21 03:05:06,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-02-21 03:05:06,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-21 03:05:06,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-21 03:05:06,541 INFO L234 CfgBuilder]: Building ICFG
[2022-02-21 03:05:06,543 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-21 03:05:06,701 INFO L275 CfgBuilder]: Performing block encoding
[2022-02-21 03:05:06,705 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-21 03:05:06,706 INFO L299 CfgBuilder]: Removed 1 assume(true) statements.
[2022-02-21 03:05:06,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:05:06 BoogieIcfgContainer
[2022-02-21 03:05:06,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-21 03:05:06,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-21 03:05:06,735 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-02-21 03:05:06,738 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-02-21 03:05:06,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 03:05:06" (1/3) ...
[2022-02-21 03:05:06,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330af8e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:05:06, skipping insertion in model container
[2022-02-21 03:05:06,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:05:06" (2/3) ...
[2022-02-21 03:05:06,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330af8e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:05:06, skipping insertion in model container
[2022-02-21 03:05:06,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:05:06" (3/3) ...
[2022-02-21 03:05:06,740 INFO L111 eAbstractionObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex2.14.c
[2022-02-21 03:05:06,743 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-02-21 03:05:06,743 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations.
[2022-02-21 03:05:06,787 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-21 03:05:06,791 INFO L339 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR
[2022-02-21 03:05:06,792 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2022-02-21 03:05:06,802 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 states have internal predecessors, (20), 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)
[2022-02-21 03:05:06,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2022-02-21 03:05:06,805 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-21 03:05:06,806 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1]
[2022-02-21 03:05:06,806 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] ===
[2022-02-21 03:05:06,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-21 03:05:06,813 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times
[2022-02-21 03:05:06,820 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-21 03:05:06,821 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709077103]
[2022-02-21 03:05:06,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-21 03:05:06,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-21 03:05:06,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-02-21 03:05:06,901 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-02-21 03:05:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-02-21 03:05:06,922 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-02-21 03:05:06,925 INFO L628 BasicCegarLoop]: Counterexample is feasible
[2022-02-21 03:05:06,926 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining)
[2022-02-21 03:05:06,927 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining)
[2022-02-21 03:05:06,928 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining)
[2022-02-21 03:05:06,928 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining)
[2022-02-21 03:05:06,928 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining)
[2022-02-21 03:05:06,929 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining)
[2022-02-21 03:05:06,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-02-21 03:05:06,932 INFO L732 BasicCegarLoop]: Path program histogram: [1]
[2022-02-21 03:05:06,935 INFO L180 ceAbstractionStarter]: Computing trace abstraction results
[2022-02-21 03:05:06,954 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation
[2022-02-21 03:05:06,954 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation
[2022-02-21 03:05:06,954 WARN L170 areAnnotationChecker]: L26-2 has no Hoare annotation
[2022-02-21 03:05:06,954 WARN L170 areAnnotationChecker]: L26-2 has no Hoare annotation
[2022-02-21 03:05:06,955 WARN L170 areAnnotationChecker]: L26-2 has no Hoare annotation
[2022-02-21 03:05:06,955 WARN L170 areAnnotationChecker]: L26-3 has no Hoare annotation
[2022-02-21 03:05:06,955 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation
[2022-02-21 03:05:06,955 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation
[2022-02-21 03:05:06,955 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation
[2022-02-21 03:05:06,955 WARN L170 areAnnotationChecker]: L27-1 has no Hoare annotation
[2022-02-21 03:05:06,955 WARN L170 areAnnotationChecker]: L27-1 has no Hoare annotation
[2022-02-21 03:05:06,956 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation
[2022-02-21 03:05:06,956 WARN L170 areAnnotationChecker]: L27-2 has no Hoare annotation
[2022-02-21 03:05:06,956 WARN L170 areAnnotationChecker]: L27-2 has no Hoare annotation
[2022-02-21 03:05:06,956 WARN L170 areAnnotationChecker]: L27-3 has no Hoare annotation
[2022-02-21 03:05:06,957 WARN L170 areAnnotationChecker]: L27-3 has no Hoare annotation
[2022-02-21 03:05:06,957 WARN L170 areAnnotationChecker]: L27-4 has no Hoare annotation
[2022-02-21 03:05:06,957 WARN L170 areAnnotationChecker]: L27-4 has no Hoare annotation
[2022-02-21 03:05:06,957 WARN L170 areAnnotationChecker]: L27-5 has no Hoare annotation
[2022-02-21 03:05:06,957 WARN L170 areAnnotationChecker]: L27-5 has no Hoare annotation
[2022-02-21 03:05:06,957 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing.
[2022-02-21 03:05:06,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 03:05:06 BoogieIcfgContainer
[2022-02-21 03:05:06,958 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-02-21 03:05:06,961 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2022-02-21 03:05:06,961 INFO L271 PluginConnector]: Initializing Witness Printer...
[2022-02-21 03:05:06,961 INFO L275 PluginConnector]: Witness Printer initialized
[2022-02-21 03:05:06,961 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:05:06" (3/4) ...
[2022-02-21 03:05:06,963 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample
[2022-02-21 03:05:06,991 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2022-02-21 03:05:06,991 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-02-21 03:05:06,993 INFO L158 Benchmark]: Toolchain (without parser) took 785.32ms. Allocated memory is still 102.8MB. Free memory was 69.5MB in the beginning and 51.1MB in the end (delta: 18.4MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB.
[2022-02-21 03:05:06,993 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 73.4MB. Free memory is still 35.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-02-21 03:05:06,995 INFO L158 Benchmark]: CACSL2BoogieTranslator took 174.63ms. Allocated memory is still 102.8MB. Free memory was 69.3MB in the beginning and 79.4MB in the end (delta: -10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2022-02-21 03:05:06,995 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.00ms. Allocated memory is still 102.8MB. Free memory was 79.4MB in the beginning and 77.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-02-21 03:05:06,997 INFO L158 Benchmark]: Boogie Preprocessor took 21.35ms. Allocated memory is still 102.8MB. Free memory was 77.9MB in the beginning and 77.2MB in the end (delta: 773.1kB). There was no memory consumed. Max. memory is 16.1GB.
[2022-02-21 03:05:06,998 INFO L158 Benchmark]: RCFGBuilder took 270.69ms. Allocated memory is still 102.8MB. Free memory was 77.2MB in the beginning and 66.8MB in the end (delta: 10.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2022-02-21 03:05:06,998 INFO L158 Benchmark]: TraceAbstraction took 238.17ms. Allocated memory is still 102.8MB. Free memory was 66.1MB in the beginning and 52.9MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2022-02-21 03:05:06,998 INFO L158 Benchmark]: Witness Printer took 30.84ms. Allocated memory is still 102.8MB. Free memory was 52.8MB in the beginning and 51.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-02-21 03:05:07,002 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- AssertionsEnabledResult: Assertions are enabled
Assertions are enabled
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.10ms. Allocated memory is still 73.4MB. Free memory is still 35.2MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 174.63ms. Allocated memory is still 102.8MB. Free memory was 69.3MB in the beginning and 79.4MB in the end (delta: -10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 28.00ms. Allocated memory is still 102.8MB. Free memory was 79.4MB in the beginning and 77.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 21.35ms. Allocated memory is still 102.8MB. Free memory was 77.9MB in the beginning and 77.2MB in the end (delta: 773.1kB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 270.69ms. Allocated memory is still 102.8MB. Free memory was 77.2MB in the beginning and 66.8MB in the end (delta: 10.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 238.17ms. Allocated memory is still 102.8MB. Free memory was 66.1MB in the beginning and 52.9MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* Witness Printer took 30.84ms. Allocated memory is still 102.8MB. Free memory was 52.8MB in the beginning and 51.1MB in the end (delta: 1.7MB). 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: 27]: integer overflow possible
integer overflow possible
We found a FailurePath:
[L23] int x, y;
[L24] x = __VERIFIER_nondet_int()
[L25] y = __VERIFIER_nondet_int()
[L26] COND TRUE x > 0 && y > 0
VAL [x=1, y=214748365]
[L27] 10*y
VAL [x=1, y=214748365]
- UnprovableResult [Line: 27]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: Not analyzed.
- UnprovableResult [Line: 27]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: Not analyzed.
- UnprovableResult [Line: 27]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: Not analyzed.
- UnprovableResult [Line: 27]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: Not analyzed.
- UnprovableResult [Line: 27]: 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, 19 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 4 NumberOfCodeBlocks, 4 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!
[2022-02-21 03:05:07,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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)