./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-acceleration/phases_2-1.c --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for termination
Using default analysis
Version 906a4fb5
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/AutomizerTermination.xml -i ../sv-benchmarks/c/loop-acceleration/phases_2-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-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(F end) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 62c8372256c861b4f8257978673ab17e2a1f1b99
..........................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE(TERM)
--- Real Ultimate output ---
This is Ultimate 0.1.25-906a4fb
[2020-10-19 19:12:24,976 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-10-19 19:12:24,979 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-19 19:12:25,004 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-19 19:12:25,005 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-19 19:12:25,006 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-19 19:12:25,007 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-19 19:12:25,009 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-19 19:12:25,011 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-19 19:12:25,012 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-10-19 19:12:25,013 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-10-19 19:12:25,014 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-19 19:12:25,015 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-19 19:12:25,016 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-19 19:12:25,017 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-19 19:12:25,018 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-19 19:12:25,019 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-19 19:12:25,020 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-19 19:12:25,022 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-19 19:12:25,024 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-19 19:12:25,026 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-19 19:12:25,027 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-19 19:12:25,029 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-10-19 19:12:25,030 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-19 19:12:25,033 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-19 19:12:25,033 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-19 19:12:25,033 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-19 19:12:25,035 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-19 19:12:25,035 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-19 19:12:25,036 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-19 19:12:25,036 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-19 19:12:25,037 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-19 19:12:25,038 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-10-19 19:12:25,039 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-10-19 19:12:25,042 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-19 19:12:25,042 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-10-19 19:12:25,043 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-10-19 19:12:25,043 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-10-19 19:12:25,046 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-10-19 19:12:25,047 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-10-19 19:12:25,048 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-10-19 19:12:25,049 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf
[2020-10-19 19:12:25,104 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-10-19 19:12:25,104 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-19 19:12:25,106 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-19 19:12:25,106 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-10-19 19:12:25,106 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-10-19 19:12:25,107 INFO  L136        SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2020-10-19 19:12:25,107 INFO  L138        SettingsManager]:  * NCSB implementation=INTSET_LAZY3
[2020-10-19 19:12:25,107 INFO  L138        SettingsManager]:  * Use old map elimination=false
[2020-10-19 19:12:25,108 INFO  L138        SettingsManager]:  * Use external solver (rank synthesis)=false
[2020-10-19 19:12:25,108 INFO  L138        SettingsManager]:  * Use only trivial implications for array writes=true
[2020-10-19 19:12:25,109 INFO  L138        SettingsManager]:  * Rank analysis=LINEAR_WITH_GUESSES
[2020-10-19 19:12:25,109 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-19 19:12:25,110 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-10-19 19:12:25,110 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2020-10-19 19:12:25,110 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-10-19 19:12:25,111 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-10-19 19:12:25,111 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-10-19 19:12:25,111 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=ASSUME
[2020-10-19 19:12:25,111 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=ASSUME
[2020-10-19 19:12:25,112 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=ASSUME
[2020-10-19 19:12:25,112 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-10-19 19:12:25,112 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-10-19 19:12:25,112 INFO  L138        SettingsManager]:  * Assume nondeterminstic values are in range=false
[2020-10-19 19:12:25,113 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-10-19 19:12:25,113 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=ASSUME
[2020-10-19 19:12:25,113 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-19 19:12:25,113 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-10-19 19:12:25,114 INFO  L138        SettingsManager]:  * To the following directory=/home/matthias/ultimate/dump
[2020-10-19 19:12:25,114 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-19 19:12:25,114 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-10-19 19:12:25,115 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-10-19 19:12:25,115 INFO  L138        SettingsManager]:  * Dump automata to the following directory=/home/matthias/ultimate/dump/auto
[2020-10-19 19:12:25,117 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2020-10-19 19:12:25,117 INFO  L138        SettingsManager]:  * TransformationType=MODULO_NEIGHBOR
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(F end) )


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 -> 62c8372256c861b4f8257978673ab17e2a1f1b99
[2020-10-19 19:12:25,463 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-19 19:12:25,476 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-19 19:12:25,482 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-19 19:12:25,484 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-10-19 19:12:25,489 INFO  L275        PluginConnector]: CDTParser initialized
[2020-10-19 19:12:25,490 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-acceleration/phases_2-1.c
[2020-10-19 19:12:25,551 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fff977ce/cae5ceae95c5419b9943857e1e69eb11/FLAG824466902
[2020-10-19 19:12:26,001 INFO  L306              CDTParser]: Found 1 translation units.
[2020-10-19 19:12:26,002 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/phases_2-1.c
[2020-10-19 19:12:26,009 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fff977ce/cae5ceae95c5419b9943857e1e69eb11/FLAG824466902
[2020-10-19 19:12:26,418 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fff977ce/cae5ceae95c5419b9943857e1e69eb11
[2020-10-19 19:12:26,422 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-19 19:12:26,428 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2020-10-19 19:12:26,429 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-19 19:12:26,429 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-19 19:12:26,432 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-19 19:12:26,433 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 07:12:26" (1/1) ...
[2020-10-19 19:12:26,436 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d09d3be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:12:26, skipping insertion in model container
[2020-10-19 19:12:26,436 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 07:12:26" (1/1) ...
[2020-10-19 19:12:26,444 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-10-19 19:12:26,462 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-10-19 19:12:26,705 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-19 19:12:26,717 INFO  L203         MainTranslator]: Completed pre-run
[2020-10-19 19:12:26,734 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-19 19:12:26,756 INFO  L208         MainTranslator]: Completed translation
[2020-10-19 19:12:26,756 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:12:26 WrapperNode
[2020-10-19 19:12:26,756 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-19 19:12:26,757 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-10-19 19:12:26,757 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-10-19 19:12:26,758 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2020-10-19 19:12:26,829 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:12:26" (1/1) ...
[2020-10-19 19:12:26,838 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:12:26" (1/1) ...
[2020-10-19 19:12:26,860 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-10-19 19:12:26,861 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-19 19:12:26,861 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-19 19:12:26,861 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-10-19 19:12:26,871 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:12:26" (1/1) ...
[2020-10-19 19:12:26,872 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:12:26" (1/1) ...
[2020-10-19 19:12:26,884 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:12:26" (1/1) ...
[2020-10-19 19:12:26,884 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:12:26" (1/1) ...
[2020-10-19 19:12:26,887 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:12:26" (1/1) ...
[2020-10-19 19:12:26,894 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:12:26" (1/1) ...
[2020-10-19 19:12:26,900 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:12:26" (1/1) ...
[2020-10-19 19:12:26,903 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-19 19:12:26,904 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-19 19:12:26,904 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-10-19 19:12:26,904 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-10-19 19:12:26,905 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:12:26" (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:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2020-10-19 19:12:26,971 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-10-19 19:12:26,971 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-19 19:12:26,972 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-19 19:12:26,972 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-19 19:12:27,181 INFO  L293             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-19 19:12:27,182 INFO  L298             CfgBuilder]: Removed 9 assume(true) statements.
[2020-10-19 19:12:27,183 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:12:27 BoogieIcfgContainer
[2020-10-19 19:12:27,183 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-19 19:12:27,184 INFO  L113        PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2020-10-19 19:12:27,184 INFO  L271        PluginConnector]: Initializing BuchiAutomizer...
[2020-10-19 19:12:27,188 INFO  L275        PluginConnector]: BuchiAutomizer initialized
[2020-10-19 19:12:27,189 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2020-10-19 19:12:27,189 INFO  L185        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 07:12:26" (1/3) ...
[2020-10-19 19:12:27,190 INFO  L205        PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ffa08ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 07:12:27, skipping insertion in model container
[2020-10-19 19:12:27,190 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2020-10-19 19:12:27,190 INFO  L185        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:12:26" (2/3) ...
[2020-10-19 19:12:27,191 INFO  L205        PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ffa08ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 07:12:27, skipping insertion in model container
[2020-10-19 19:12:27,191 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2020-10-19 19:12:27,191 INFO  L185        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:12:27" (3/3) ...
[2020-10-19 19:12:27,193 INFO  L373   chiAutomizerObserver]: Analyzing ICFG phases_2-1.c
[2020-10-19 19:12:27,250 INFO  L359         BuchiCegarLoop]: Interprodecural is true
[2020-10-19 19:12:27,250 INFO  L360         BuchiCegarLoop]: Hoare is false
[2020-10-19 19:12:27,250 INFO  L361         BuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2020-10-19 19:12:27,250 INFO  L362         BuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-19 19:12:27,250 INFO  L363         BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-19 19:12:27,250 INFO  L364         BuchiCegarLoop]: Difference is false
[2020-10-19 19:12:27,251 INFO  L365         BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-19 19:12:27,251 INFO  L368         BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop========
[2020-10-19 19:12:27,265 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states.
[2020-10-19 19:12:27,284 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 2
[2020-10-19 19:12:27,285 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2020-10-19 19:12:27,285 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2020-10-19 19:12:27,290 INFO  L852         BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1]
[2020-10-19 19:12:27,291 INFO  L853         BuchiCegarLoop]: Counterexample loop histogram [1, 1]
[2020-10-19 19:12:27,291 INFO  L427         BuchiCegarLoop]: ======== Iteration 1============
[2020-10-19 19:12:27,291 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states.
[2020-10-19 19:12:27,292 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 2
[2020-10-19 19:12:27,293 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2020-10-19 19:12:27,293 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2020-10-19 19:12:27,293 INFO  L852         BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1]
[2020-10-19 19:12:27,293 INFO  L853         BuchiCegarLoop]: Counterexample loop histogram [1, 1]
[2020-10-19 19:12:27,299 INFO  L794   eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 3#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~post8, main_~x~0, main_~y~0;main_~x~0 := 1;main_~y~0 := main_#t~nondet7;havoc main_#t~nondet7; 4#L21true assume !!(main_~y~0 % 4294967296 > 0); 8#L24-2true 
[2020-10-19 19:12:27,300 INFO  L796   eck$LassoCheckResult]: Loop: 8#L24-2true assume !!(main_~x~0 % 4294967296 < main_~y~0 % 4294967296); 11#L24true assume main_~x~0 % 4294967296 < (if main_~y~0 % 4294967296 < 0 && 0 != main_~y~0 % 4294967296 % (main_~x~0 % 4294967296) then (if main_~x~0 % 4294967296 < 0 then main_~y~0 % 4294967296 / (main_~x~0 % 4294967296) - 1 else 1 + main_~y~0 % 4294967296 / (main_~x~0 % 4294967296)) else main_~y~0 % 4294967296 / (main_~x~0 % 4294967296)) % 4294967296;main_~x~0 := main_~x~0 * main_~x~0; 8#L24-2true 
[2020-10-19 19:12:27,305 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-19 19:12:27,305 INFO  L82        PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times
[2020-10-19 19:12:27,313 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-19 19:12:27,313 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288166400]
[2020-10-19 19:12:27,313 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-19 19:12:27,406 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-19 19:12:27,407 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-10-19 19:12:27,428 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-19 19:12:27,428 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-10-19 19:12:27,449 INFO  L173   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-10-19 19:12:27,451 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-19 19:12:27,451 INFO  L82        PathProgramCache]: Analyzing trace with hash 1476, now seen corresponding path program 1 times
[2020-10-19 19:12:27,451 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-19 19:12:27,452 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136910626]
[2020-10-19 19:12:27,452 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-19 19:12:27,459 ERROR L270   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2020-10-19 19:12:27,460 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2022355210]
[2020-10-19 19:12:27,460 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-10-19 19:12:27,505 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-19 19:12:27,505 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-10-19 19:12:27,516 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-19 19:12:27,517 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-10-19 19:12:27,525 INFO  L173   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-10-19 19:12:27,527 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-19 19:12:27,527 INFO  L82        PathProgramCache]: Analyzing trace with hash 28695975, now seen corresponding path program 1 times
[2020-10-19 19:12:27,528 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-19 19:12:27,528 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216598527]
[2020-10-19 19:12:27,529 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-19 19:12:27,543 ERROR L270   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2020-10-19 19:12:27,544 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [195780627]
[2020-10-19 19:12:27,544 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-10-19 19:12:27,634 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-19 19:12:27,635 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-10-19 19:12:27,652 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-19 19:12:27,653 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-10-19 19:12:27,662 INFO  L173   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-10-19 19:12:27,778 WARN  L193               SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 13
[2020-10-19 19:12:28,062 WARN  L193               SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59
[2020-10-19 19:12:28,202 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 07:12:28 BoogieIcfgContainer
[2020-10-19 19:12:28,202 INFO  L132        PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2020-10-19 19:12:28,203 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2020-10-19 19:12:28,203 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2020-10-19 19:12:28,203 INFO  L275        PluginConnector]: Witness Printer initialized
[2020-10-19 19:12:28,204 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:12:27" (3/4) ...
[2020-10-19 19:12:28,207 INFO  L134         WitnessPrinter]: Generating witness for non-termination counterexample
[2020-10-19 19:12:28,244 INFO  L141         WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2020-10-19 19:12:28,244 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2020-10-19 19:12:28,247 INFO  L168              Benchmark]: Toolchain (without parser) took 1823.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 955.9 MB in the beginning and 1.0 GB in the end (delta: -66.2 MB). Peak memory consumption was 54.9 MB. Max. memory is 11.5 GB.
[2020-10-19 19:12:28,247 INFO  L168              Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB.
[2020-10-19 19:12:28,248 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 328.07 ms. Allocated memory is still 1.0 GB. Free memory was 955.9 MB in the beginning and 945.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB.
[2020-10-19 19:12:28,249 INFO  L168              Benchmark]: Boogie Procedure Inliner took 102.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB.
[2020-10-19 19:12:28,250 INFO  L168              Benchmark]: Boogie Preprocessor took 42.41 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB.
[2020-10-19 19:12:28,250 INFO  L168              Benchmark]: RCFGBuilder took 279.82 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: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB.
[2020-10-19 19:12:28,251 INFO  L168              Benchmark]: BuchiAutomizer took 1018.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 62.3 MB). Peak memory consumption was 62.3 MB. Max. memory is 11.5 GB.
[2020-10-19 19:12:28,252 INFO  L168              Benchmark]: Witness Printer took 41.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB.
[2020-10-19 19:12:28,256 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB.
 * CACSL2BoogieTranslator took 328.07 ms. Allocated memory is still 1.0 GB. Free memory was 955.9 MB in the beginning and 945.2 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 102.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB.
 * Boogie Preprocessor took 42.41 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB.
 * RCFGBuilder took 279.82 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: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB.
 * BuchiAutomizer took 1018.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 62.3 MB). Peak memory consumption was 62.3 MB. Max. memory is 11.5 GB.
 * Witness Printer took 41.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: Constructed decomposition of program
    Trivial decomposition into one nonterminating module.
  - StatisticsResult: Timing statistics
    BüchiAutomizer plugin needed 0.9s and 1 iterations.  TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1.	Nontrivial modules had stage [0, 0, 0, 0, 0].	InterpolantCoveringCapabilityFinite: 0/0	InterpolantCoveringCapabilityBuchi: 0/0	HoareTripleCheckerStatistics: No data available	LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0	LassoNonterminationAnalysisSatUnbounded: 0	LassoNonterminationAnalysisUnsat: 0	LassoNonterminationAnalysisUnknown: 0	LassoNonterminationAnalysisTime: 0.0s	
  - TerminationAnalysisResult: Nontermination possible
    Buchi Automizer proved that your program is nonterminating for some inputs
  - FixpointNonTerminationResult [Line: 23]: Nontermination argument in form of an infinite program execution.
    Nontermination argument in form of an infinite execution
State at position 0 is
{NULL=1}
State at position 1 is
{NULL=0, NULL=0, NULL=0, NULL=4, NULL=0, \result=0, NULL=2, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e882ce4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@5177280d=0, NULL=0, x=1, y=4294967298, NULL=3}
  - StatisticsResult: NonterminationArgumentStatistics
    Fixpoint
  - NonterminatingLassoResult [Line: 23]: Nonterminating execution
    Found a nonterminating execution for the following lasso shaped sequence of statements.
Stem:
[L18]              unsigned int x = 1;
[L19]              unsigned int y = __VERIFIER_nondet_uint();
[L21]  COND FALSE  !(!(y > 0))
Loop:
[L23]  COND TRUE  x < y
[L24]  COND TRUE  x < y / x
[L25]             x *= x
End of lasso representation.
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...