./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 cad46833
Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ccb6a55c-6a50-4088-97bd-08251618b8d1/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ccb6a55c-6a50-4088-97bd-08251618b8d1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ccb6a55c-6a50-4088-97bd-08251618b8d1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ccb6a55c-6a50-4088-97bd-08251618b8d1/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-acceleration/phases_2-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ccb6a55c-6a50-4088-97bd-08251618b8d1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ccb6a55c-6a50-4088-97bd-08251618b8d1/bin/uautomizer --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 3cd199824dccc6e7aa84d2a9a82b4dda750590d9
.....................................................................................................................................................................................................................................................................................
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 0.1.24-cad4683
[2019-11-16 00:00:56,670 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-11-16 00:00:56,672 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-11-16 00:00:56,682 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-11-16 00:00:56,682 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-11-16 00:00:56,683 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-11-16 00:00:56,685 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-11-16 00:00:56,687 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2019-11-16 00:00:56,689 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-11-16 00:00:56,689 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-11-16 00:00:56,690 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2019-11-16 00:00:56,692 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-11-16 00:00:56,692 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-11-16 00:00:56,693 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-11-16 00:00:56,694 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-11-16 00:00:56,695 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-11-16 00:00:56,695 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-11-16 00:00:56,696 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-11-16 00:00:56,698 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-11-16 00:00:56,700 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-11-16 00:00:56,702 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-11-16 00:00:56,703 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-11-16 00:00:56,704 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-11-16 00:00:56,705 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-11-16 00:00:56,707 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-11-16 00:00:56,708 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-11-16 00:00:56,708 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-11-16 00:00:56,709 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-11-16 00:00:56,709 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-11-16 00:00:56,710 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-11-16 00:00:56,710 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-11-16 00:00:56,711 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2019-11-16 00:00:56,711 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-11-16 00:00:56,712 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-11-16 00:00:56,713 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-11-16 00:00:56,713 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2019-11-16 00:00:56,714 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-11-16 00:00:56,714 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-11-16 00:00:56,714 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2019-11-16 00:00:56,715 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2019-11-16 00:00:56,716 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-11-16 00:00:56,716 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ccb6a55c-6a50-4088-97bd-08251618b8d1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf
[2019-11-16 00:00:56,733 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-11-16 00:00:56,733 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-11-16 00:00:56,734 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-11-16 00:00:56,734 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-11-16 00:00:56,734 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-11-16 00:00:56,735 INFO  L136        SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2019-11-16 00:00:56,735 INFO  L138        SettingsManager]:  * NCSB implementation=INTSET_LAZY3
[2019-11-16 00:00:56,735 INFO  L138        SettingsManager]:  * Use old map elimination=false
[2019-11-16 00:00:56,735 INFO  L138        SettingsManager]:  * Use external solver (rank synthesis)=false
[2019-11-16 00:00:56,735 INFO  L138        SettingsManager]:  * Use only trivial implications for array writes=true
[2019-11-16 00:00:56,736 INFO  L138        SettingsManager]:  * Rank analysis=LINEAR_WITH_GUESSES
[2019-11-16 00:00:56,736 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-11-16 00:00:56,736 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-11-16 00:00:56,736 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2019-11-16 00:00:56,736 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-11-16 00:00:56,737 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-11-16 00:00:56,737 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-11-16 00:00:56,737 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=ASSUME
[2019-11-16 00:00:56,737 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=ASSUME
[2019-11-16 00:00:56,737 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=ASSUME
[2019-11-16 00:00:56,738 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-11-16 00:00:56,738 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-11-16 00:00:56,738 INFO  L138        SettingsManager]:  * Assume nondeterminstic values are in range=false
[2019-11-16 00:00:56,738 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-11-16 00:00:56,738 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=ASSUME
[2019-11-16 00:00:56,739 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-11-16 00:00:56,739 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-11-16 00:00:56,739 INFO  L138        SettingsManager]:  * To the following directory=/home/matthias/ultimate/dump
[2019-11-16 00:00:56,739 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-11-16 00:00:56,740 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-11-16 00:00:56,740 INFO  L138        SettingsManager]:  * Dump automata to the following directory=/home/matthias/ultimate/dump/auto
[2019-11-16 00:00:56,741 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2019-11-16 00:00:56,741 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_ccb6a55c-6a50-4088-97bd-08251618b8d1/bin/uautomizer
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 -> 3cd199824dccc6e7aa84d2a9a82b4dda750590d9
[2019-11-16 00:00:56,766 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-11-16 00:00:56,775 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-11-16 00:00:56,778 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-11-16 00:00:56,779 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-11-16 00:00:56,780 INFO  L275        PluginConnector]: CDTParser initialized
[2019-11-16 00:00:56,780 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ccb6a55c-6a50-4088-97bd-08251618b8d1/bin/uautomizer/../../sv-benchmarks/c/loop-acceleration/phases_2-1.c
[2019-11-16 00:00:56,830 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ccb6a55c-6a50-4088-97bd-08251618b8d1/bin/uautomizer/data/3211b9bd8/71079f8cbb2b49c68433de321aca338f/FLAGc3fe51590
[2019-11-16 00:00:57,250 INFO  L306              CDTParser]: Found 1 translation units.
[2019-11-16 00:00:57,251 INFO  L160              CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ccb6a55c-6a50-4088-97bd-08251618b8d1/sv-benchmarks/c/loop-acceleration/phases_2-1.c
[2019-11-16 00:00:57,258 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ccb6a55c-6a50-4088-97bd-08251618b8d1/bin/uautomizer/data/3211b9bd8/71079f8cbb2b49c68433de321aca338f/FLAGc3fe51590
[2019-11-16 00:00:57,274 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ccb6a55c-6a50-4088-97bd-08251618b8d1/bin/uautomizer/data/3211b9bd8/71079f8cbb2b49c68433de321aca338f
[2019-11-16 00:00:57,277 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-11-16 00:00:57,279 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2019-11-16 00:00:57,282 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-11-16 00:00:57,282 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-11-16 00:00:57,285 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-11-16 00:00:57,286 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:00:57" (1/1) ...
[2019-11-16 00:00:57,289 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d01eb1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:57, skipping insertion in model container
[2019-11-16 00:00:57,290 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:00:57" (1/1) ...
[2019-11-16 00:00:57,297 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-11-16 00:00:57,314 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-11-16 00:00:57,540 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-11-16 00:00:57,543 INFO  L188         MainTranslator]: Completed pre-run
[2019-11-16 00:00:57,559 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-11-16 00:00:57,571 INFO  L192         MainTranslator]: Completed translation
[2019-11-16 00:00:57,571 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:57 WrapperNode
[2019-11-16 00:00:57,571 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-11-16 00:00:57,572 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2019-11-16 00:00:57,572 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2019-11-16 00:00:57,572 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2019-11-16 00:00:57,578 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:57" (1/1) ...
[2019-11-16 00:00:57,583 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:57" (1/1) ...
[2019-11-16 00:00:57,599 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2019-11-16 00:00:57,600 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-11-16 00:00:57,600 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-11-16 00:00:57,600 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-11-16 00:00:57,606 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:57" (1/1) ...
[2019-11-16 00:00:57,607 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:57" (1/1) ...
[2019-11-16 00:00:57,608 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:57" (1/1) ...
[2019-11-16 00:00:57,608 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:57" (1/1) ...
[2019-11-16 00:00:57,615 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:57" (1/1) ...
[2019-11-16 00:00:57,619 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:57" (1/1) ...
[2019-11-16 00:00:57,620 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:57" (1/1) ...
[2019-11-16 00:00:57,623 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-11-16 00:00:57,624 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-11-16 00:00:57,624 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-11-16 00:00:57,624 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-11-16 00:00:57,625 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:57" (1/1) ...
No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccb6a55c-6a50-4088-97bd-08251618b8d1/bin/uautomizer/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
[2019-11-16 00:00:57,674 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-11-16 00:00:57,674 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-11-16 00:00:57,839 INFO  L279             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-11-16 00:00:57,840 INFO  L284             CfgBuilder]: Removed 7 assume(true) statements.
[2019-11-16 00:00:57,841 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:00:57 BoogieIcfgContainer
[2019-11-16 00:00:57,841 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-11-16 00:00:57,841 INFO  L113        PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2019-11-16 00:00:57,841 INFO  L271        PluginConnector]: Initializing BuchiAutomizer...
[2019-11-16 00:00:57,845 INFO  L275        PluginConnector]: BuchiAutomizer initialized
[2019-11-16 00:00:57,845 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2019-11-16 00:00:57,846 INFO  L185        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 12:00:57" (1/3) ...
[2019-11-16 00:00:57,846 INFO  L205        PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46b899da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:00:57, skipping insertion in model container
[2019-11-16 00:00:57,847 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2019-11-16 00:00:57,847 INFO  L185        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:57" (2/3) ...
[2019-11-16 00:00:57,847 INFO  L205        PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46b899da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:00:57, skipping insertion in model container
[2019-11-16 00:00:57,847 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2019-11-16 00:00:57,848 INFO  L185        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:00:57" (3/3) ...
[2019-11-16 00:00:57,849 INFO  L371   chiAutomizerObserver]: Analyzing ICFG phases_2-1.c
[2019-11-16 00:00:57,905 INFO  L356         BuchiCegarLoop]: Interprodecural is true
[2019-11-16 00:00:57,905 INFO  L357         BuchiCegarLoop]: Hoare is false
[2019-11-16 00:00:57,905 INFO  L358         BuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2019-11-16 00:00:57,906 INFO  L359         BuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2019-11-16 00:00:57,906 INFO  L360         BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-11-16 00:00:57,906 INFO  L361         BuchiCegarLoop]: Difference is false
[2019-11-16 00:00:57,906 INFO  L362         BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-11-16 00:00:57,906 INFO  L365         BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop========
[2019-11-16 00:00:57,920 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states.
[2019-11-16 00:00:57,935 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 2
[2019-11-16 00:00:57,936 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2019-11-16 00:00:57,936 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2019-11-16 00:00:57,940 INFO  L849         BuchiCegarLoop]: Counterexample stem histogram [1, 1]
[2019-11-16 00:00:57,940 INFO  L850         BuchiCegarLoop]: Counterexample loop histogram [1, 1]
[2019-11-16 00:00:57,941 INFO  L424         BuchiCegarLoop]: ======== Iteration 1============
[2019-11-16 00:00:57,941 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states.
[2019-11-16 00:00:57,942 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 2
[2019-11-16 00:00:57,942 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2019-11-16 00:00:57,942 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2019-11-16 00:00:57,942 INFO  L849         BuchiCegarLoop]: Counterexample stem histogram [1, 1]
[2019-11-16 00:00:57,942 INFO  L850         BuchiCegarLoop]: Counterexample loop histogram [1, 1]
[2019-11-16 00:00:57,947 INFO  L791   eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_~x~0, main_~y~0;main_~x~0 := 1;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 4#L16true assume !!(main_~y~0 % 4294967296 > 0); 7#L19-2true 
[2019-11-16 00:00:57,948 INFO  L793   eck$LassoCheckResult]: Loop: 7#L19-2true assume !!(main_~x~0 % 4294967296 < main_~y~0 % 4294967296); 11#L19true 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; 7#L19-2true 
[2019-11-16 00:00:57,952 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-16 00:00:57,953 INFO  L82        PathProgramCache]: Analyzing trace with hash 998, now seen corresponding path program 1 times
[2019-11-16 00:00:57,958 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-16 00:00:57,959 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282416036]
[2019-11-16 00:00:57,959 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-11-16 00:00:57,959 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-11-16 00:00:57,959 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-16 00:00:58,014 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2019-11-16 00:00:58,018 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2019-11-16 00:00:58,032 INFO  L168   tionRefinementEngine]: Strategy CAMEL found a feasible trace
[2019-11-16 00:00:58,033 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-16 00:00:58,033 INFO  L82        PathProgramCache]: Analyzing trace with hash 1444, now seen corresponding path program 1 times
[2019-11-16 00:00:58,033 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-16 00:00:58,033 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362109897]
[2019-11-16 00:00:58,033 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-11-16 00:00:58,034 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-11-16 00:00:58,034 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-16 00:00:58,040 ERROR L273   tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2019-11-16 00:00:58,040 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [691061841]
[2019-11-16 00:00:58,040 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccb6a55c-6a50-4088-97bd-08251618b8d1/bin/uautomizer/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
[2019-11-16 00:00:58,103 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2019-11-16 00:00:58,104 WARN  L162   tionRefinementEngine]: Strategy CAMEL was unsuccessful and could not determine trace feasibility
[2019-11-16 00:00:58,105 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-16 00:00:58,105 INFO  L82        PathProgramCache]: Analyzing trace with hash 959561, now seen corresponding path program 1 times
[2019-11-16 00:00:58,105 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-16 00:00:58,106 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880284247]
[2019-11-16 00:00:58,106 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-11-16 00:00:58,106 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-11-16 00:00:58,106 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-16 00:00:58,112 ERROR L273   tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2019-11-16 00:00:58,112 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2102658956]
[2019-11-16 00:00:58,112 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccb6a55c-6a50-4088-97bd-08251618b8d1/bin/uautomizer/z3
Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2019-11-16 00:00:58,142 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-11-16 00:00:58,148 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2019-11-16 00:00:58,151 INFO  L168   tionRefinementEngine]: Strategy CAMEL found a feasible trace
[2019-11-16 00:00:58,297 WARN  L191               SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 26
[2019-11-16 00:00:58,419 WARN  L191               SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 26
[2019-11-16 00:00:58,464 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 12:00:58 BoogieIcfgContainer
[2019-11-16 00:00:58,465 INFO  L132        PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2019-11-16 00:00:58,465 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2019-11-16 00:00:58,465 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2019-11-16 00:00:58,465 INFO  L275        PluginConnector]: Witness Printer initialized
[2019-11-16 00:00:58,466 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:00:57" (3/4) ...
[2019-11-16 00:00:58,469 INFO  L134         WitnessPrinter]: Generating witness for non-termination counterexample
[2019-11-16 00:00:58,500 INFO  L141         WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ccb6a55c-6a50-4088-97bd-08251618b8d1/bin/uautomizer/witness.graphml
[2019-11-16 00:00:58,500 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2019-11-16 00:00:58,502 INFO  L168              Benchmark]: Toolchain (without parser) took 1223.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 939.7 MB in the beginning and 1.1 GB in the end (delta: -146.4 MB). There was no memory consumed. Max. memory is 11.5 GB.
[2019-11-16 00:00:58,502 INFO  L168              Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB.
[2019-11-16 00:00:58,503 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 289.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 939.7 MB in the beginning and 1.1 GB in the end (delta: -198.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB.
[2019-11-16 00:00:58,503 INFO  L168              Benchmark]: Boogie Procedure Inliner took 27.55 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.
[2019-11-16 00:00:58,504 INFO  L168              Benchmark]: Boogie Preprocessor took 23.42 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.
[2019-11-16 00:00:58,504 INFO  L168              Benchmark]: RCFGBuilder took 217.34 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB.
[2019-11-16 00:00:58,505 INFO  L168              Benchmark]: BuchiAutomizer took 623.32 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: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 11.5 GB.
[2019-11-16 00:00:58,505 INFO  L168              Benchmark]: Witness Printer took 35.54 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.
[2019-11-16 00:00:58,508 INFO  L335   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB.
 * CACSL2BoogieTranslator took 289.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 939.7 MB in the beginning and 1.1 GB in the end (delta: -198.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB.
 * Boogie Procedure Inliner took 27.55 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.
 * Boogie Preprocessor took 23.42 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.
 * RCFGBuilder took 217.34 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB.
 * BuchiAutomizer took 623.32 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: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 11.5 GB.
 * Witness Printer took 35.54 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:
  - StatisticsResult: Constructed decomposition of program
    Trivial decomposition into one nonterminating module.
  - StatisticsResult: Timing statistics
    BüchiAutomizer plugin needed 0.5s and 1 iterations.  TraceHistogramMax:1. Analysis of lassos took 0.5s. 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: 18]: Nontermination argument in form of an infinite program execution.
    Nontermination argument in form of an infinite execution
State at position 0 is
{}
State at position 1 is
{\result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6cae90e0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@42d2f14a=0, x=1, y=2}
  - StatisticsResult: NonterminationArgumentStatistics
    Fixpoint
  - NonterminatingLassoResult [Line: 18]: Nonterminating execution
    Found a nonterminating execution for the following lasso shaped sequence of statements.
Stem:
[L13]              unsigned int x = 1;
[L14]              unsigned int y = __VERIFIER_nondet_uint();
[L16]  COND FALSE  !(!(y > 0))
Loop:
[L18]  COND TRUE  x < y
[L19]  COND TRUE  x < y / x
[L20]             x *= x
End of lasso representation.
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...