./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/bitvector-regression/signextension-2.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 678e0110
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/bitvector-regression/signextension-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 ! call(__VERIFIER_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f4433bb60ef050acea7db74543af3a05ddf5a434
...........................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE
--- Real Ultimate output ---
This is Ultimate 0.1.24-678e011
[2019-11-19 20:51:28,947 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2019-11-19 20:51:28,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2019-11-19 20:51:28,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-11-19 20:51:28,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-11-19 20:51:28,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-11-19 20:51:28,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-11-19 20:51:28,983 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2019-11-19 20:51:28,989 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-11-19 20:51:28,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-11-19 20:51:28,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2019-11-19 20:51:28,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-11-19 20:51:28,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-11-19 20:51:28,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-11-19 20:51:29,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-11-19 20:51:29,003 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-11-19 20:51:29,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-11-19 20:51:29,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-11-19 20:51:29,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-11-19 20:51:29,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2019-11-19 20:51:29,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-11-19 20:51:29,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-11-19 20:51:29,023 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2019-11-19 20:51:29,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-11-19 20:51:29,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-11-19 20:51:29,029 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-11-19 20:51:29,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-11-19 20:51:29,031 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-11-19 20:51:29,032 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-11-19 20:51:29,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-11-19 20:51:29,033 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-11-19 20:51:29,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2019-11-19 20:51:29,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-11-19 20:51:29,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2019-11-19 20:51:29,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-11-19 20:51:29,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2019-11-19 20:51:29,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-11-19 20:51:29,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-11-19 20:51:29,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2019-11-19 20:51:29,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2019-11-19 20:51:29,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2019-11-19 20:51:29,042 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2019-11-19 20:51:29,074 INFO L113 SettingsManager]: Loading preferences was successful
[2019-11-19 20:51:29,077 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2019-11-19 20:51:29,081 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-11-19 20:51:29,081 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2019-11-19 20:51:29,081 INFO L138 SettingsManager]: * Use SBE=true
[2019-11-19 20:51:29,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-11-19 20:51:29,082 INFO L138 SettingsManager]: * sizeof long=4
[2019-11-19 20:51:29,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2019-11-19 20:51:29,083 INFO L138 SettingsManager]: * sizeof POINTER=4
[2019-11-19 20:51:29,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2019-11-19 20:51:29,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2019-11-19 20:51:29,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-11-19 20:51:29,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2019-11-19 20:51:29,084 INFO L138 SettingsManager]: * sizeof long double=12
[2019-11-19 20:51:29,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2019-11-19 20:51:29,084 INFO L138 SettingsManager]: * Use constant arrays=true
[2019-11-19 20:51:29,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2019-11-19 20:51:29,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-11-19 20:51:29,085 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2019-11-19 20:51:29,086 INFO L138 SettingsManager]: * To the following directory=./dump/
[2019-11-19 20:51:29,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2019-11-19 20:51:29,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-11-19 20:51:29,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-11-19 20:51:29,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2019-11-19 20:51:29,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-11-19 20:51:29,087 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2019-11-19 20:51:29,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-11-19 20:51:29,088 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-11-19 20:51:29,088 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
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 ! call(__VERIFIER_error())) )
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 -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4433bb60ef050acea7db74543af3a05ddf5a434
[2019-11-19 20:51:29,366 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2019-11-19 20:51:29,384 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-11-19 20:51:29,388 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-11-19 20:51:29,389 INFO L271 PluginConnector]: Initializing CDTParser...
[2019-11-19 20:51:29,390 INFO L275 PluginConnector]: CDTParser initialized
[2019-11-19 20:51:29,391 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector-regression/signextension-2.c
[2019-11-19 20:51:29,463 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffdd8e14b/c45ec87551464fbb802af77009ae66c9/FLAG9a36ff34e
[2019-11-19 20:51:29,946 INFO L306 CDTParser]: Found 1 translation units.
[2019-11-19 20:51:29,947 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector-regression/signextension-2.c
[2019-11-19 20:51:29,954 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffdd8e14b/c45ec87551464fbb802af77009ae66c9/FLAG9a36ff34e
[2019-11-19 20:51:30,294 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffdd8e14b/c45ec87551464fbb802af77009ae66c9
[2019-11-19 20:51:30,297 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-11-19 20:51:30,298 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2019-11-19 20:51:30,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-11-19 20:51:30,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-11-19 20:51:30,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2019-11-19 20:51:30,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:51:30" (1/1) ...
[2019-11-19 20:51:30,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c4af720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:51:30, skipping insertion in model container
[2019-11-19 20:51:30,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:51:30" (1/1) ...
[2019-11-19 20:51:30,313 INFO L142 MainTranslator]: Starting translation in SV-COMP mode
[2019-11-19 20:51:30,329 INFO L173 MainTranslator]: Built tables and reachable declarations
[2019-11-19 20:51:30,478 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-11-19 20:51:30,485 INFO L188 MainTranslator]: Completed pre-run
[2019-11-19 20:51:30,506 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-11-19 20:51:30,521 INFO L192 MainTranslator]: Completed translation
[2019-11-19 20:51:30,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:51:30 WrapperNode
[2019-11-19 20:51:30,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-11-19 20:51:30,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2019-11-19 20:51:30,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2019-11-19 20:51:30,523 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2019-11-19 20:51:30,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:51:30" (1/1) ...
[2019-11-19 20:51:30,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:51:30" (1/1) ...
[2019-11-19 20:51:30,554 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2019-11-19 20:51:30,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-11-19 20:51:30,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2019-11-19 20:51:30,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2019-11-19 20:51:30,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:51:30" (1/1) ...
[2019-11-19 20:51:30,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:51:30" (1/1) ...
[2019-11-19 20:51:30,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:51:30" (1/1) ...
[2019-11-19 20:51:30,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:51:30" (1/1) ...
[2019-11-19 20:51:30,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:51:30" (1/1) ...
[2019-11-19 20:51:30,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:51:30" (1/1) ...
[2019-11-19 20:51:30,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:51:30" (1/1) ...
[2019-11-19 20:51:30,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-11-19 20:51:30,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-11-19 20:51:30,630 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2019-11-19 20:51:30,630 INFO L275 PluginConnector]: RCFGBuilder initialized
[2019-11-19 20:51:30,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:51:30" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-11-19 20:51:30,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-11-19 20:51:30,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-11-19 20:51:30,858 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-11-19 20:51:30,859 INFO L285 CfgBuilder]: Removed 4 assume(true) statements.
[2019-11-19 20:51:30,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:51:30 BoogieIcfgContainer
[2019-11-19 20:51:30,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-11-19 20:51:30,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-11-19 20:51:30,862 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2019-11-19 20:51:30,865 INFO L275 PluginConnector]: TraceAbstraction initialized
[2019-11-19 20:51:30,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:51:30" (1/3) ...
[2019-11-19 20:51:30,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@436246ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:51:30, skipping insertion in model container
[2019-11-19 20:51:30,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:51:30" (2/3) ...
[2019-11-19 20:51:30,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@436246ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:51:30, skipping insertion in model container
[2019-11-19 20:51:30,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:51:30" (3/3) ...
[2019-11-19 20:51:30,870 INFO L109 eAbstractionObserver]: Analyzing ICFG signextension-2.c
[2019-11-19 20:51:30,878 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-11-19 20:51:30,884 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-11-19 20:51:30,892 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-11-19 20:51:30,916 INFO L373 AbstractCegarLoop]: Interprodecural is true
[2019-11-19 20:51:30,916 INFO L374 AbstractCegarLoop]: Hoare is true
[2019-11-19 20:51:30,917 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-11-19 20:51:30,917 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-11-19 20:51:30,917 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-11-19 20:51:30,917 INFO L378 AbstractCegarLoop]: Difference is false
[2019-11-19 20:51:30,917 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-11-19 20:51:30,918 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-11-19 20:51:30,932 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states.
[2019-11-19 20:51:30,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2019-11-19 20:51:30,938 INFO L402 BasicCegarLoop]: Found error trace
[2019-11-19 20:51:30,938 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1]
[2019-11-19 20:51:30,939 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-19 20:51:30,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-11-19 20:51:30,944 INFO L82 PathProgramCache]: Analyzing trace with hash 30884, now seen corresponding path program 1 times
[2019-11-19 20:51:30,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-19 20:51:30,952 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808814777]
[2019-11-19 20:51:30,952 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-19 20:51:31,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-19 20:51:31,392 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 25
[2019-11-19 20:51:31,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-19 20:51:31,396 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808814777]
[2019-11-19 20:51:31,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-19 20:51:31,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2019-11-19 20:51:31,401 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736787767]
[2019-11-19 20:51:31,406 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-11-19 20:51:31,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-11-19 20:51:31,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-11-19 20:51:31,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-11-19 20:51:31,422 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states.
[2019-11-19 20:51:31,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-19 20:51:31,441 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions.
[2019-11-19 20:51:31,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2019-11-19 20:51:31,443 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3
[2019-11-19 20:51:31,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-19 20:51:31,451 INFO L225 Difference]: With dead ends: 10
[2019-11-19 20:51:31,452 INFO L226 Difference]: Without dead ends: 0
[2019-11-19 20:51:31,456 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-11-19 20:51:31,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2019-11-19 20:51:31,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2019-11-19 20:51:31,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2019-11-19 20:51:31,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2019-11-19 20:51:31,477 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3
[2019-11-19 20:51:31,477 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-11-19 20:51:31,477 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2019-11-19 20:51:31,478 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-11-19 20:51:31,478 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2019-11-19 20:51:31,478 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2019-11-19 20:51:31,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2019-11-19 20:51:31,529 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2019-11-19 20:51:31,529 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed.
[2019-11-19 20:51:31,530 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2019-11-19 20:51:31,530 INFO L440 ceAbstractionStarter]: At program point L26(lines 3 27) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div ULTIMATE.start_main_~unsignedtounsigned~0 4294967296)))) (and (<= ULTIMATE.start_main_~unsignedtosigned~0 65535) (<= ULTIMATE.start_main_~unsignedtounsigned~0 (+ .cse0 65535)) (= 0 (+ ULTIMATE.start_main_~signedtosigned~0 1)) (< (+ (* 4294967296 (div ULTIMATE.start_main_~signedtounsigned~0 4294967296)) 4294967294) ULTIMATE.start_main_~signedtounsigned~0) (< (+ .cse0 65534) ULTIMATE.start_main_~unsignedtounsigned~0) (<= 65535 ULTIMATE.start_main_~unsignedtosigned~0)))
[2019-11-19 20:51:31,531 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 25) no Hoare annotation was computed.
[2019-11-19 20:51:31,531 INFO L440 ceAbstractionStarter]: At program point L21(lines 3 27) the Hoare annotation is: false
[2019-11-19 20:51:31,531 INFO L444 ceAbstractionStarter]: For program point L19(lines 19 22) no Hoare annotation was computed.
[2019-11-19 20:51:31,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:51:31 BoogieIcfgContainer
[2019-11-19 20:51:31,555 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2019-11-19 20:51:31,556 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2019-11-19 20:51:31,557 INFO L271 PluginConnector]: Initializing Witness Printer...
[2019-11-19 20:51:31,557 INFO L275 PluginConnector]: Witness Printer initialized
[2019-11-19 20:51:31,558 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:51:30" (3/4) ...
[2019-11-19 20:51:31,563 INFO L137 WitnessPrinter]: Generating witness for correct program
[2019-11-19 20:51:31,578 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2019-11-19 20:51:31,578 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2019-11-19 20:51:31,631 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2019-11-19 20:51:31,632 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2019-11-19 20:51:31,634 INFO L168 Benchmark]: Toolchain (without parser) took 1335.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -152.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 11.5 GB.
[2019-11-19 20:51:31,635 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 976.5 MB. There was no memory consumed. Max. memory is 11.5 GB.
[2019-11-19 20:51:31,636 INFO L168 Benchmark]: CACSL2BoogieTranslator took 223.27 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 938.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB.
[2019-11-19 20:51:31,636 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.55 ms. Allocated memory is still 1.0 GB. Free memory is still 938.9 MB. There was no memory consumed. Max. memory is 11.5 GB.
[2019-11-19 20:51:31,638 INFO L168 Benchmark]: Boogie Preprocessor took 74.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 938.9 MB in the beginning and 1.2 GB in the end (delta: -215.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB.
[2019-11-19 20:51:31,639 INFO L168 Benchmark]: RCFGBuilder took 231.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB.
[2019-11-19 20:51:31,639 INFO L168 Benchmark]: TraceAbstraction took 693.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB.
[2019-11-19 20:51:31,640 INFO L168 Benchmark]: Witness Printer took 76.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB.
[2019-11-19 20:51:31,644 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 976.5 MB. There was no memory consumed. Max. memory is 11.5 GB.
* CACSL2BoogieTranslator took 223.27 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 938.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB.
* Boogie Procedure Inliner took 31.55 ms. Allocated memory is still 1.0 GB. Free memory is still 938.9 MB. There was no memory consumed. Max. memory is 11.5 GB.
* Boogie Preprocessor took 74.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 938.9 MB in the beginning and 1.2 GB in the end (delta: -215.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB.
* RCFGBuilder took 231.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB.
* TraceAbstraction took 693.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB.
* Witness Printer took 76.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 25]: call of __VERIFIER_error() unreachable
For all program executions holds that call of __VERIFIER_error() unreachable at this location
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 3]: Loop Invariant
Derived loop invariant: ((((unsignedtosigned <= 65535 && unsignedtounsigned <= 4294967296 * (unsignedtounsigned / 4294967296) + 65535) && 0 == signedtosigned + 1) && 4294967296 * (signedtounsigned / 4294967296) + 4294967294 < signedtounsigned) && 4294967296 * (unsignedtounsigned / 4294967296) + 65534 < unsignedtounsigned) && 65535 <= unsignedtosigned
- InvariantResult [Line: 3]: Loop Invariant
Derived loop invariant: 0
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 7 locations, 1 error locations. Result: SAFE, OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 3 SDtfs, 3 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, 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: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 40 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 80 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, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...