./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/bubblesort-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/bubblesort-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/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 a2eb39e0d0d0fa911fcf8a16c5f9511be1d37325 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: MapEliminator tries to combine Int and (Array Int Int) --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 08:12:56,018 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 08:12:56,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 08:12:56,032 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 08:12:56,033 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 08:12:56,034 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 08:12:56,036 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 08:12:56,038 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 08:12:56,040 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 08:12:56,041 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 08:12:56,042 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 08:12:56,044 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 08:12:56,044 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 08:12:56,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 08:12:56,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 08:12:56,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 08:12:56,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 08:12:56,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 08:12:56,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 08:12:56,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 08:12:56,056 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 08:12:56,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 08:12:56,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 08:12:56,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 08:12:56,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 08:12:56,070 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 08:12:56,070 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 08:12:56,071 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 08:12:56,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 08:12:56,078 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 08:12:56,078 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 08:12:56,079 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 08:12:56,079 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 08:12:56,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 08:12:56,081 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 08:12:56,081 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 08:12:56,082 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 08:12:56,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 08:12:56,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 08:12:56,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 08:12:56,084 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 08:12:56,085 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-20 08:12:56,114 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 08:12:56,114 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 08:12:56,116 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 08:12:56,117 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 08:12:56,117 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 08:12:56,117 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 08:12:56,117 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 08:12:56,117 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 08:12:56,118 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 08:12:56,118 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 08:12:56,119 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 08:12:56,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 08:12:56,119 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 08:12:56,120 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 08:12:56,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 08:12:56,120 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 08:12:56,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 08:12:56,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 08:12:56,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 08:12:56,121 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 08:12:56,121 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 08:12:56,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 08:12:56,121 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 08:12:56,122 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 08:12:56,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 08:12:56,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 08:12:56,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 08:12:56,122 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 08:12:56,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 08:12:56,123 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 08:12:56,123 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 08:12:56,124 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 08:12:56,125 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_8020ecc9-b332-4bf1-a515-ba44852fbeb0/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 -> a2eb39e0d0d0fa911fcf8a16c5f9511be1d37325 [2019-11-20 08:12:56,321 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 08:12:56,333 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 08:12:56,336 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 08:12:56,337 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 08:12:56,338 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 08:12:56,338 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/bubblesort-alloca-2.i [2019-11-20 08:12:56,392 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/data/3e2374b19/d8e2111e7ecd4be28a247c8827c4e14c/FLAGd25112863 [2019-11-20 08:12:56,803 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 08:12:56,804 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/sv-benchmarks/c/array-memsafety/bubblesort-alloca-2.i [2019-11-20 08:12:56,819 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/data/3e2374b19/d8e2111e7ecd4be28a247c8827c4e14c/FLAGd25112863 [2019-11-20 08:12:57,158 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/data/3e2374b19/d8e2111e7ecd4be28a247c8827c4e14c [2019-11-20 08:12:57,160 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 08:12:57,162 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 08:12:57,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 08:12:57,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 08:12:57,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 08:12:57,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:12:57" (1/1) ... [2019-11-20 08:12:57,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4369cc89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:12:57, skipping insertion in model container [2019-11-20 08:12:57,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:12:57" (1/1) ... [2019-11-20 08:12:57,179 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 08:12:57,217 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 08:12:57,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 08:12:57,659 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 08:12:57,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 08:12:57,785 INFO L192 MainTranslator]: Completed translation [2019-11-20 08:12:57,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:12:57 WrapperNode [2019-11-20 08:12:57,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 08:12:57,788 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 08:12:57,788 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 08:12:57,788 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 08:12:57,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:12:57" (1/1) ... [2019-11-20 08:12:57,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:12:57" (1/1) ... [2019-11-20 08:12:57,834 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 08:12:57,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 08:12:57,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 08:12:57,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 08:12:57,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:12:57" (1/1) ... [2019-11-20 08:12:57,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:12:57" (1/1) ... [2019-11-20 08:12:57,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:12:57" (1/1) ... [2019-11-20 08:12:57,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:12:57" (1/1) ... [2019-11-20 08:12:57,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:12:57" (1/1) ... [2019-11-20 08:12:57,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:12:57" (1/1) ... [2019-11-20 08:12:57,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:12:57" (1/1) ... [2019-11-20 08:12:57,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 08:12:57,864 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 08:12:57,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 08:12:57,865 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 08:12:57,866 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:12:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/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 [2019-11-20 08:12:57,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 08:12:57,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 08:12:57,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 08:12:57,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 08:12:57,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 08:12:57,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 08:12:58,331 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 08:12:58,332 INFO L285 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-20 08:12:58,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:12:58 BoogieIcfgContainer [2019-11-20 08:12:58,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 08:12:58,334 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 08:12:58,336 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 08:12:58,341 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 08:12:58,342 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 08:12:58,342 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 08:12:57" (1/3) ... [2019-11-20 08:12:58,344 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d3de585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 08:12:58, skipping insertion in model container [2019-11-20 08:12:58,344 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 08:12:58,344 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:12:57" (2/3) ... [2019-11-20 08:12:58,345 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d3de585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 08:12:58, skipping insertion in model container [2019-11-20 08:12:58,345 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 08:12:58,346 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:12:58" (3/3) ... [2019-11-20 08:12:58,348 INFO L371 chiAutomizerObserver]: Analyzing ICFG bubblesort-alloca-2.i [2019-11-20 08:12:58,410 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 08:12:58,410 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 08:12:58,410 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 08:12:58,410 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 08:12:58,410 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 08:12:58,411 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 08:12:58,411 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 08:12:58,411 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 08:12:58,430 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2019-11-20 08:12:58,459 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2019-11-20 08:12:58,459 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 08:12:58,459 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 08:12:58,466 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-20 08:12:58,467 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 08:12:58,467 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 08:12:58,467 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2019-11-20 08:12:58,469 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2019-11-20 08:12:58,469 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 08:12:58,469 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 08:12:58,470 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-20 08:12:58,470 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 08:12:58,478 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~k~0, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 18#L527true assume !(main_~array_size~0 < 1 || main_~array_size~0 >= 536870911); 3#L527-2true call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~k~0 := 0; 13#L532-3true [2019-11-20 08:12:58,479 INFO L796 eck$LassoCheckResult]: Loop: 13#L532-3true assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet11; 11#L532-2true main_#t~post10 := main_~k~0;main_~k~0 := 1 + main_#t~post10;havoc main_#t~post10; 13#L532-3true [2019-11-20 08:12:58,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:12:58,486 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2019-11-20 08:12:58,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:12:58,495 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976319776] [2019-11-20 08:12:58,496 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:12:58,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:12:58,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:12:58,662 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:12:58,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:12:58,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1507, now seen corresponding path program 1 times [2019-11-20 08:12:58,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:12:58,664 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606749229] [2019-11-20 08:12:58,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:12:58,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:12:58,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:12:58,681 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:12:58,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:12:58,683 INFO L82 PathProgramCache]: Analyzing trace with hash 889568455, now seen corresponding path program 1 times [2019-11-20 08:12:58,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:12:58,683 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781392771] [2019-11-20 08:12:58,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:12:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:12:58,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:12:58,719 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:12:59,042 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2019-11-20 08:12:59,118 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 08:12:59,119 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 08:12:59,119 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 08:12:59,119 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 08:12:59,119 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 08:12:59,120 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:12:59,120 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 08:12:59,120 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 08:12:59,120 INFO L133 ssoRankerPreferences]: Filename of dumped script: bubblesort-alloca-2.i_Iteration1_Lasso [2019-11-20 08:12:59,120 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 08:12:59,121 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 08:12:59,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:12:59,284 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2019-11-20 08:12:59,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:12:59,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:12:59,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:12:59,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:12:59,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:12:59,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:12:59,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:12:59,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:12:59,660 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 08:12:59,667 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 08:12:59,683 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:12:59,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:12:59,686 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:12:59,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:12:59,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:12:59,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:12:59,690 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:12:59,690 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:12:59,695 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 08:12:59,713 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 08:12:59,715 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:12:59,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:12:59,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:12:59,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:12:59,725 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 08:12:59,725 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:12:59,733 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 08:12:59,750 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 08:12:59,752 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:12:59,752 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:12:59,753 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:12:59,753 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:12:59,758 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 08:12:59,758 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:12:59,764 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 08:12:59,783 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 08:12:59,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:12:59,787 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:12:59,787 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:12:59,787 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:12:59,799 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 08:12:59,799 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:12:59,810 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 08:12:59,826 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 08:12:59,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:12:59,828 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:12:59,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:12:59,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:12:59,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:12:59,831 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:12:59,831 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:12:59,835 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 08:12:59,853 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 08:12:59,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:12:59,856 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:12:59,856 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:12:59,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:12:59,874 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 08:12:59,874 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:12:59,891 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 08:12:59,957 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2019-11-20 08:12:59,958 INFO L444 ModelExtractionUtils]: 7 out of 22 variables were initially zero. Simplification set additionally 11 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 08:12:59,978 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:12:59,982 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-20 08:12:59,983 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 08:12:59,984 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0, v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_1) = -4*ULTIMATE.start_main_~k~0 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_1 Supporting invariants [1*ULTIMATE.start_main_~numbers~0.offset >= 0] [2019-11-20 08:13:00,007 INFO L297 tatePredicateManager]: 2 out of 4 supporting invariants were superfluous and have been removed [2019-11-20 08:13:00,029 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-20 08:13:00,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:13:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:13:00,095 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 08:13:00,096 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:13:00,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:13:00,110 WARN L253 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 08:13:00,110 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:13:00,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:13:00,150 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-20 08:13:00,152 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 3 states. [2019-11-20 08:13:00,293 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 3 states. Result 35 states and 53 transitions. Complement of second has 8 states. [2019-11-20 08:13:00,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 08:13:00,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 08:13:00,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2019-11-20 08:13:00,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-20 08:13:00,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 08:13:00,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 6 letters. Loop has 2 letters. [2019-11-20 08:13:00,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 08:13:00,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 4 letters. Loop has 4 letters. [2019-11-20 08:13:00,307 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 08:13:00,308 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 53 transitions. [2019-11-20 08:13:00,315 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 08:13:00,320 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 13 states and 18 transitions. [2019-11-20 08:13:00,321 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-20 08:13:00,321 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-20 08:13:00,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2019-11-20 08:13:00,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 08:13:00,323 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2019-11-20 08:13:00,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2019-11-20 08:13:00,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-11-20 08:13:00,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-20 08:13:00,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2019-11-20 08:13:00,354 INFO L711 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2019-11-20 08:13:00,354 INFO L591 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2019-11-20 08:13:00,354 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 08:13:00,354 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2019-11-20 08:13:00,357 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 08:13:00,358 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 08:13:00,358 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 08:13:00,358 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 08:13:00,358 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 08:13:00,359 INFO L794 eck$LassoCheckResult]: Stem: 120#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 118#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~k~0, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 119#L527 assume !(main_~array_size~0 < 1 || main_~array_size~0 >= 536870911); 121#L527-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~k~0 := 0; 122#L532-3 assume !(main_~k~0 < main_~array_size~0); 130#L532-4 bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset, bubbleSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc bubbleSort_#t~mem4, bubbleSort_#t~mem5, bubbleSort_#t~mem6, bubbleSort_#t~mem7, bubbleSort_#t~post3, bubbleSort_#t~post2, bubbleSort_~numbers.base, bubbleSort_~numbers.offset, bubbleSort_~array_size, bubbleSort_~i~0, bubbleSort_~j~0, bubbleSort_~temp~0;bubbleSort_~numbers.base, bubbleSort_~numbers.offset := bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset;bubbleSort_~array_size := bubbleSort_#in~array_size;havoc bubbleSort_~i~0;havoc bubbleSort_~j~0;havoc bubbleSort_~temp~0;bubbleSort_~i~0 := bubbleSort_~array_size - 1; 129#L515-3 [2019-11-20 08:13:00,359 INFO L796 eck$LassoCheckResult]: Loop: 129#L515-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 126#L516-3 assume !(bubbleSort_~j~0 <= bubbleSort_~i~0); 127#L515-2 bubbleSort_#t~post2 := bubbleSort_~i~0;bubbleSort_~i~0 := bubbleSort_#t~post2 - 1;havoc bubbleSort_#t~post2; 129#L515-3 [2019-11-20 08:13:00,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:13:00,360 INFO L82 PathProgramCache]: Analyzing trace with hash 889568397, now seen corresponding path program 1 times [2019-11-20 08:13:00,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:13:00,360 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376544721] [2019-11-20 08:13:00,361 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:13:00,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:13:00,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:13:00,473 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376544721] [2019-11-20 08:13:00,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 08:13:00,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 08:13:00,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707105786] [2019-11-20 08:13:00,477 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 08:13:00,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:13:00,478 INFO L82 PathProgramCache]: Analyzing trace with hash 60779, now seen corresponding path program 1 times [2019-11-20 08:13:00,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:13:00,478 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053567486] [2019-11-20 08:13:00,478 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:13:00,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:00,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:00,487 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:13:00,513 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 08:13:00,513 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 08:13:00,513 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 08:13:00,513 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 08:13:00,513 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 08:13:00,514 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:13:00,514 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 08:13:00,514 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 08:13:00,514 INFO L133 ssoRankerPreferences]: Filename of dumped script: bubblesort-alloca-2.i_Iteration2_Loop [2019-11-20 08:13:00,514 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 08:13:00,514 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 08:13:00,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:00,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:00,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:00,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:00,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:00,651 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 08:13:00,652 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 08:13:00,673 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 08:13:00,673 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:13:00,680 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 08:13:00,680 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_bubbleSort_#t~post2=0} Honda state: {ULTIMATE.start_bubbleSort_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 08:13:00,698 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 08:13:00,698 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:13:00,704 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 08:13:00,704 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~P_PID_2=1} Honda state: {v_rep~unnamed0~0~P_PID_2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 08:13:00,720 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 08:13:00,720 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:13:00,727 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 08:13:00,727 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~P_PGID_2=2} Honda state: {v_rep~unnamed0~0~P_PGID_2=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 08:13:00,825 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 08:13:00,825 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:13:00,847 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 08:13:00,847 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 08:13:00,859 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 08:13:00,862 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 08:13:00,862 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 08:13:00,863 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 08:13:00,863 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 08:13:00,863 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 08:13:00,863 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:13:00,864 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 08:13:00,864 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 08:13:00,864 INFO L133 ssoRankerPreferences]: Filename of dumped script: bubblesort-alloca-2.i_Iteration2_Loop [2019-11-20 08:13:00,864 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 08:13:00,864 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 08:13:00,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:00,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:00,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:00,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:00,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:01,006 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 08:13:01,006 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:13:01,017 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 08:13:01,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:13:01,021 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:13:01,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:13:01,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:13:01,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:13:01,023 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:13:01,023 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:13:01,026 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:13:01,041 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 08:13:01,043 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:13:01,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:13:01,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:13:01,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:13:01,046 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 08:13:01,046 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 08:13:01,053 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:13:01,068 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 08:13:01,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:13:01,072 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:13:01,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:13:01,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:13:01,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:13:01,074 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:13:01,074 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:13:01,077 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 08:13:01,082 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 08:13:01,082 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:13:01,089 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 08:13:01,089 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 08:13:01,090 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 08:13:01,090 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_bubbleSort_~i~0) = 2*ULTIMATE.start_bubbleSort_~i~0 + 1 Supporting invariants [] [2019-11-20 08:13:01,093 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 08:13:01,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:13:01,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:13:01,124 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 08:13:01,125 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:13:01,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:13:01,131 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 08:13:01,131 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:13:01,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:13:01,150 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-20 08:13:01,150 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-11-20 08:13:01,167 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 19 states and 28 transitions. Complement of second has 4 states. [2019-11-20 08:13:01,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 08:13:01,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 08:13:01,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2019-11-20 08:13:01,169 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-20 08:13:01,169 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 08:13:01,169 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-20 08:13:01,170 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 08:13:01,170 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 6 letters. Loop has 6 letters. [2019-11-20 08:13:01,170 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 08:13:01,170 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 28 transitions. [2019-11-20 08:13:01,171 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 08:13:01,172 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 18 states and 26 transitions. [2019-11-20 08:13:01,172 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-20 08:13:01,172 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-20 08:13:01,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 26 transitions. [2019-11-20 08:13:01,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 08:13:01,173 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2019-11-20 08:13:01,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 26 transitions. [2019-11-20 08:13:01,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2019-11-20 08:13:01,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-20 08:13:01,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 25 transitions. [2019-11-20 08:13:01,175 INFO L711 BuchiCegarLoop]: Abstraction has 17 states and 25 transitions. [2019-11-20 08:13:01,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 08:13:01,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 08:13:01,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 08:13:01,180 INFO L87 Difference]: Start difference. First operand 17 states and 25 transitions. Second operand 4 states. [2019-11-20 08:13:01,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 08:13:01,207 INFO L93 Difference]: Finished difference Result 18 states and 25 transitions. [2019-11-20 08:13:01,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 08:13:01,208 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 25 transitions. [2019-11-20 08:13:01,209 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 08:13:01,209 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 25 transitions. [2019-11-20 08:13:01,209 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-20 08:13:01,209 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-20 08:13:01,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2019-11-20 08:13:01,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 08:13:01,210 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2019-11-20 08:13:01,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2019-11-20 08:13:01,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2019-11-20 08:13:01,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-20 08:13:01,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 24 transitions. [2019-11-20 08:13:01,211 INFO L711 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2019-11-20 08:13:01,211 INFO L591 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2019-11-20 08:13:01,212 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 08:13:01,212 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 24 transitions. [2019-11-20 08:13:01,212 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 08:13:01,213 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 08:13:01,213 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 08:13:01,214 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 08:13:01,214 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 08:13:01,214 INFO L794 eck$LassoCheckResult]: Stem: 234#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 232#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~k~0, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 233#L527 assume !(main_~array_size~0 < 1 || main_~array_size~0 >= 536870911); 235#L527-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~k~0 := 0; 236#L532-3 assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet11; 241#L532-2 main_#t~post10 := main_~k~0;main_~k~0 := 1 + main_#t~post10;havoc main_#t~post10; 242#L532-3 assume !(main_~k~0 < main_~array_size~0); 247#L532-4 bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset, bubbleSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc bubbleSort_#t~mem4, bubbleSort_#t~mem5, bubbleSort_#t~mem6, bubbleSort_#t~mem7, bubbleSort_#t~post3, bubbleSort_#t~post2, bubbleSort_~numbers.base, bubbleSort_~numbers.offset, bubbleSort_~array_size, bubbleSort_~i~0, bubbleSort_~j~0, bubbleSort_~temp~0;bubbleSort_~numbers.base, bubbleSort_~numbers.offset := bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset;bubbleSort_~array_size := bubbleSort_#in~array_size;havoc bubbleSort_~i~0;havoc bubbleSort_~j~0;havoc bubbleSort_~temp~0;bubbleSort_~i~0 := bubbleSort_~array_size - 1; 248#L515-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 238#L516-3 [2019-11-20 08:13:01,214 INFO L796 eck$LassoCheckResult]: Loop: 238#L516-3 assume !!(bubbleSort_~j~0 <= bubbleSort_~i~0);call bubbleSort_#t~mem4 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);call bubbleSort_#t~mem5 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 243#L517 assume bubbleSort_#t~mem4 > bubbleSort_#t~mem5;havoc bubbleSort_#t~mem5;havoc bubbleSort_#t~mem4;call bubbleSort_#t~mem6 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);bubbleSort_~temp~0 := bubbleSort_#t~mem6;havoc bubbleSort_#t~mem6;call bubbleSort_#t~mem7 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4);call write~int(bubbleSort_#t~mem7, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);havoc bubbleSort_#t~mem7;call write~int(bubbleSort_~temp~0, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 237#L516-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 238#L516-3 [2019-11-20 08:13:01,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:13:01,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1185641744, now seen corresponding path program 1 times [2019-11-20 08:13:01,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:13:01,215 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658851170] [2019-11-20 08:13:01,215 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:13:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:01,248 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:13:01,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:13:01,248 INFO L82 PathProgramCache]: Analyzing trace with hash 68618, now seen corresponding path program 1 times [2019-11-20 08:13:01,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:13:01,249 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961056334] [2019-11-20 08:13:01,249 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:13:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:01,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:01,265 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:13:01,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:13:01,265 INFO L82 PathProgramCache]: Analyzing trace with hash -357807973, now seen corresponding path program 1 times [2019-11-20 08:13:01,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:13:01,266 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500078290] [2019-11-20 08:13:01,266 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:13:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:13:01,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:13:01,383 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500078290] [2019-11-20 08:13:01,383 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365142412] [2019-11-20 08:13:01,383 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 08:13:01,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:13:01,445 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 08:13:01,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:13:01,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:13:01,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 08:13:01,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2019-11-20 08:13:01,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101436994] [2019-11-20 08:13:01,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 08:13:01,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-20 08:13:01,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-11-20 08:13:01,709 INFO L87 Difference]: Start difference. First operand 17 states and 24 transitions. cyclomatic complexity: 10 Second operand 11 states. [2019-11-20 08:13:01,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 08:13:01,887 INFO L93 Difference]: Finished difference Result 30 states and 40 transitions. [2019-11-20 08:13:01,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 08:13:01,888 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 40 transitions. [2019-11-20 08:13:01,889 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 08:13:01,890 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 20 states and 26 transitions. [2019-11-20 08:13:01,890 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-20 08:13:01,890 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-20 08:13:01,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 26 transitions. [2019-11-20 08:13:01,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 08:13:01,891 INFO L688 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2019-11-20 08:13:01,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 26 transitions. [2019-11-20 08:13:01,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-11-20 08:13:01,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-20 08:13:01,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2019-11-20 08:13:01,895 INFO L711 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2019-11-20 08:13:01,895 INFO L591 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2019-11-20 08:13:01,895 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 08:13:01,895 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 25 transitions. [2019-11-20 08:13:01,896 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 08:13:01,896 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 08:13:01,896 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 08:13:01,897 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 08:13:01,897 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 08:13:01,897 INFO L794 eck$LassoCheckResult]: Stem: 338#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 336#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~k~0, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 337#L527 assume !(main_~array_size~0 < 1 || main_~array_size~0 >= 536870911); 339#L527-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~k~0 := 0; 340#L532-3 assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet11; 341#L532-2 main_#t~post10 := main_~k~0;main_~k~0 := 1 + main_#t~post10;havoc main_#t~post10; 342#L532-3 assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet11; 351#L532-2 main_#t~post10 := main_~k~0;main_~k~0 := 1 + main_#t~post10;havoc main_#t~post10; 354#L532-3 assume !(main_~k~0 < main_~array_size~0); 352#L532-4 bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset, bubbleSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc bubbleSort_#t~mem4, bubbleSort_#t~mem5, bubbleSort_#t~mem6, bubbleSort_#t~mem7, bubbleSort_#t~post3, bubbleSort_#t~post2, bubbleSort_~numbers.base, bubbleSort_~numbers.offset, bubbleSort_~array_size, bubbleSort_~i~0, bubbleSort_~j~0, bubbleSort_~temp~0;bubbleSort_~numbers.base, bubbleSort_~numbers.offset := bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset;bubbleSort_~array_size := bubbleSort_#in~array_size;havoc bubbleSort_~i~0;havoc bubbleSort_~j~0;havoc bubbleSort_~temp~0;bubbleSort_~i~0 := bubbleSort_~array_size - 1; 353#L515-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 344#L516-3 [2019-11-20 08:13:01,897 INFO L796 eck$LassoCheckResult]: Loop: 344#L516-3 assume !!(bubbleSort_~j~0 <= bubbleSort_~i~0);call bubbleSort_#t~mem4 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);call bubbleSort_#t~mem5 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 347#L517 assume bubbleSort_#t~mem4 > bubbleSort_#t~mem5;havoc bubbleSort_#t~mem5;havoc bubbleSort_#t~mem4;call bubbleSort_#t~mem6 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);bubbleSort_~temp~0 := bubbleSort_#t~mem6;havoc bubbleSort_#t~mem6;call bubbleSort_#t~mem7 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4);call write~int(bubbleSort_#t~mem7, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);havoc bubbleSort_#t~mem7;call write~int(bubbleSort_~temp~0, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 343#L516-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 344#L516-3 [2019-11-20 08:13:01,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:13:01,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1237095790, now seen corresponding path program 2 times [2019-11-20 08:13:01,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:13:01,898 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772286845] [2019-11-20 08:13:01,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:13:01,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:01,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:01,930 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:13:01,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:13:01,931 INFO L82 PathProgramCache]: Analyzing trace with hash 68618, now seen corresponding path program 2 times [2019-11-20 08:13:01,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:13:01,931 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368774885] [2019-11-20 08:13:01,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:13:01,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:01,945 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:13:01,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:13:01,945 INFO L82 PathProgramCache]: Analyzing trace with hash -793648259, now seen corresponding path program 2 times [2019-11-20 08:13:01,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:13:01,946 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139848950] [2019-11-20 08:13:01,946 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:13:01,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:01,989 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:13:02,377 WARN L191 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 81 [2019-11-20 08:13:02,475 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 08:13:02,476 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 08:13:02,476 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 08:13:02,476 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 08:13:02,476 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 08:13:02,476 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:13:02,476 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 08:13:02,476 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 08:13:02,477 INFO L133 ssoRankerPreferences]: Filename of dumped script: bubblesort-alloca-2.i_Iteration4_Lasso [2019-11-20 08:13:02,477 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 08:13:02,477 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 08:13:02,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:02,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:02,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:02,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:02,653 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-11-20 08:13:02,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:02,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:02,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:02,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:02,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:02,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:02,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:02,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:02,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:02,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:02,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:02,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:03,173 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 08:13:03,174 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:13:03,193 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 08:13:03,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:13:03,195 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:13:03,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:13:03,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:13:03,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:13:03,197 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:13:03,197 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:13:03,199 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:13:03,217 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 08:13:03,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:13:03,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:13:03,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:13:03,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:13:03,224 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 08:13:03,224 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 08:13:03,229 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 08:13:03,247 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 08:13:03,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:13:03,259 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:13:03,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:13:03,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:13:03,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:13:03,260 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:13:03,260 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:13:03,262 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:13:03,269 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 08:13:03,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:13:03,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:13:03,272 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:13:03,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:13:03,283 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 08:13:03,283 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 08:13:03,304 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 08:13:03,371 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2019-11-20 08:13:03,371 INFO L444 ModelExtractionUtils]: 10 out of 40 variables were initially zero. Simplification set additionally 26 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 08:13:03,375 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:13:03,378 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 08:13:03,378 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 08:13:03,378 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_bubbleSort_~numbers.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_2, ULTIMATE.start_bubbleSort_~j~0) = -1*ULTIMATE.start_bubbleSort_~numbers.offset + 2*v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_2 - 4*ULTIMATE.start_bubbleSort_~j~0 Supporting invariants [] [2019-11-20 08:13:03,401 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2019-11-20 08:13:03,404 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-20 08:13:03,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:13:03,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:13:03,445 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 08:13:03,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:13:03,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:13:03,466 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 08:13:03,467 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:13:03,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:13:03,485 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2019-11-20 08:13:03,485 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 25 transitions. cyclomatic complexity: 9 Second operand 5 states. [2019-11-20 08:13:03,550 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 25 transitions. cyclomatic complexity: 9. Second operand 5 states. Result 34 states and 47 transitions. Complement of second has 9 states. [2019-11-20 08:13:03,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 3 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 08:13:03,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-20 08:13:03,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 15 transitions. [2019-11-20 08:13:03,552 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 15 transitions. Stem has 11 letters. Loop has 3 letters. [2019-11-20 08:13:03,552 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 08:13:03,552 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 15 transitions. Stem has 14 letters. Loop has 3 letters. [2019-11-20 08:13:03,552 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 08:13:03,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 15 transitions. Stem has 11 letters. Loop has 6 letters. [2019-11-20 08:13:03,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 08:13:03,553 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 47 transitions. [2019-11-20 08:13:03,556 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 08:13:03,557 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 24 states and 32 transitions. [2019-11-20 08:13:03,557 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-20 08:13:03,557 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-20 08:13:03,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 32 transitions. [2019-11-20 08:13:03,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 08:13:03,557 INFO L688 BuchiCegarLoop]: Abstraction has 24 states and 32 transitions. [2019-11-20 08:13:03,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 32 transitions. [2019-11-20 08:13:03,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 19. [2019-11-20 08:13:03,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-20 08:13:03,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2019-11-20 08:13:03,560 INFO L711 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2019-11-20 08:13:03,560 INFO L591 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2019-11-20 08:13:03,561 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-20 08:13:03,561 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2019-11-20 08:13:03,561 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 08:13:03,561 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 08:13:03,562 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 08:13:03,562 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 08:13:03,562 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 08:13:03,563 INFO L794 eck$LassoCheckResult]: Stem: 484#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 482#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~k~0, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 483#L527 assume !(main_~array_size~0 < 1 || main_~array_size~0 >= 536870911); 485#L527-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~k~0 := 0; 486#L532-3 assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet11; 491#L532-2 main_#t~post10 := main_~k~0;main_~k~0 := 1 + main_#t~post10;havoc main_#t~post10; 492#L532-3 assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet11; 497#L532-2 main_#t~post10 := main_~k~0;main_~k~0 := 1 + main_#t~post10;havoc main_#t~post10; 500#L532-3 assume !(main_~k~0 < main_~array_size~0); 499#L532-4 bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset, bubbleSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc bubbleSort_#t~mem4, bubbleSort_#t~mem5, bubbleSort_#t~mem6, bubbleSort_#t~mem7, bubbleSort_#t~post3, bubbleSort_#t~post2, bubbleSort_~numbers.base, bubbleSort_~numbers.offset, bubbleSort_~array_size, bubbleSort_~i~0, bubbleSort_~j~0, bubbleSort_~temp~0;bubbleSort_~numbers.base, bubbleSort_~numbers.offset := bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset;bubbleSort_~array_size := bubbleSort_#in~array_size;havoc bubbleSort_~i~0;havoc bubbleSort_~j~0;havoc bubbleSort_~temp~0;bubbleSort_~i~0 := bubbleSort_~array_size - 1; 498#L515-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 490#L516-3 assume !(bubbleSort_~j~0 <= bubbleSort_~i~0); 494#L515-2 bubbleSort_#t~post2 := bubbleSort_~i~0;bubbleSort_~i~0 := bubbleSort_#t~post2 - 1;havoc bubbleSort_#t~post2; 496#L515-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 488#L516-3 [2019-11-20 08:13:03,563 INFO L796 eck$LassoCheckResult]: Loop: 488#L516-3 assume !!(bubbleSort_~j~0 <= bubbleSort_~i~0);call bubbleSort_#t~mem4 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);call bubbleSort_#t~mem5 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 493#L517 assume bubbleSort_#t~mem4 > bubbleSort_#t~mem5;havoc bubbleSort_#t~mem5;havoc bubbleSort_#t~mem4;call bubbleSort_#t~mem6 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);bubbleSort_~temp~0 := bubbleSort_#t~mem6;havoc bubbleSort_#t~mem6;call bubbleSort_#t~mem7 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4);call write~int(bubbleSort_#t~mem7, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);havoc bubbleSort_#t~mem7;call write~int(bubbleSort_~temp~0, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 487#L516-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 488#L516-3 [2019-11-20 08:13:03,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:13:03,563 INFO L82 PathProgramCache]: Analyzing trace with hash -793649948, now seen corresponding path program 1 times [2019-11-20 08:13:03,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:13:03,564 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697013583] [2019-11-20 08:13:03,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:13:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:13:03,681 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:13:03,681 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697013583] [2019-11-20 08:13:03,681 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558142319] [2019-11-20 08:13:03,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 08:13:03,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:13:03,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 08:13:03,730 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:13:03,786 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:13:03,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 08:13:03,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2019-11-20 08:13:03,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501385498] [2019-11-20 08:13:03,787 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 08:13:03,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:13:03,787 INFO L82 PathProgramCache]: Analyzing trace with hash 68618, now seen corresponding path program 3 times [2019-11-20 08:13:03,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:13:03,788 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005857919] [2019-11-20 08:13:03,788 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:13:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:03,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:03,798 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:13:03,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 08:13:03,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-20 08:13:03,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-11-20 08:13:03,887 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. cyclomatic complexity: 8 Second operand 12 states. [2019-11-20 08:13:03,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 08:13:03,980 INFO L93 Difference]: Finished difference Result 26 states and 34 transitions. [2019-11-20 08:13:03,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 08:13:03,980 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 34 transitions. [2019-11-20 08:13:03,981 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 08:13:03,982 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 26 states and 34 transitions. [2019-11-20 08:13:03,982 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-20 08:13:03,982 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-20 08:13:03,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 34 transitions. [2019-11-20 08:13:03,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 08:13:03,982 INFO L688 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-20 08:13:03,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 34 transitions. [2019-11-20 08:13:03,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 20. [2019-11-20 08:13:03,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-20 08:13:03,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2019-11-20 08:13:03,985 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2019-11-20 08:13:03,985 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2019-11-20 08:13:03,985 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-20 08:13:03,985 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 25 transitions. [2019-11-20 08:13:03,985 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 08:13:03,985 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 08:13:03,986 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 08:13:03,986 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 08:13:03,986 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 08:13:03,987 INFO L794 eck$LassoCheckResult]: Stem: 589#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 587#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~k~0, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 588#L527 assume !(main_~array_size~0 < 1 || main_~array_size~0 >= 536870911); 590#L527-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~k~0 := 0; 591#L532-3 assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet11; 603#L532-2 main_#t~post10 := main_~k~0;main_~k~0 := 1 + main_#t~post10;havoc main_#t~post10; 604#L532-3 assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet11; 596#L532-2 main_#t~post10 := main_~k~0;main_~k~0 := 1 + main_#t~post10;havoc main_#t~post10; 597#L532-3 assume !(main_~k~0 < main_~array_size~0); 606#L532-4 bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset, bubbleSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc bubbleSort_#t~mem4, bubbleSort_#t~mem5, bubbleSort_#t~mem6, bubbleSort_#t~mem7, bubbleSort_#t~post3, bubbleSort_#t~post2, bubbleSort_~numbers.base, bubbleSort_~numbers.offset, bubbleSort_~array_size, bubbleSort_~i~0, bubbleSort_~j~0, bubbleSort_~temp~0;bubbleSort_~numbers.base, bubbleSort_~numbers.offset := bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset;bubbleSort_~array_size := bubbleSort_#in~array_size;havoc bubbleSort_~i~0;havoc bubbleSort_~j~0;havoc bubbleSort_~temp~0;bubbleSort_~i~0 := bubbleSort_~array_size - 1; 605#L515-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 601#L516-3 assume !!(bubbleSort_~j~0 <= bubbleSort_~i~0);call bubbleSort_#t~mem4 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);call bubbleSort_#t~mem5 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 602#L517 assume !(bubbleSort_#t~mem4 > bubbleSort_#t~mem5);havoc bubbleSort_#t~mem5;havoc bubbleSort_#t~mem4; 594#L516-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 595#L516-3 assume !(bubbleSort_~j~0 <= bubbleSort_~i~0); 598#L515-2 bubbleSort_#t~post2 := bubbleSort_~i~0;bubbleSort_~i~0 := bubbleSort_#t~post2 - 1;havoc bubbleSort_#t~post2; 599#L515-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 593#L516-3 [2019-11-20 08:13:03,987 INFO L796 eck$LassoCheckResult]: Loop: 593#L516-3 assume !!(bubbleSort_~j~0 <= bubbleSort_~i~0);call bubbleSort_#t~mem4 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);call bubbleSort_#t~mem5 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 600#L517 assume bubbleSort_#t~mem4 > bubbleSort_#t~mem5;havoc bubbleSort_#t~mem5;havoc bubbleSort_#t~mem4;call bubbleSort_#t~mem6 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);bubbleSort_~temp~0 := bubbleSort_#t~mem6;havoc bubbleSort_#t~mem6;call bubbleSort_#t~mem7 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4);call write~int(bubbleSort_#t~mem7, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);havoc bubbleSort_#t~mem7;call write~int(bubbleSort_~temp~0, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 592#L516-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 593#L516-3 [2019-11-20 08:13:03,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:13:03,987 INFO L82 PathProgramCache]: Analyzing trace with hash 221564791, now seen corresponding path program 1 times [2019-11-20 08:13:03,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:13:03,987 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997037979] [2019-11-20 08:13:03,987 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:13:04,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:04,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:04,022 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:13:04,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:13:04,022 INFO L82 PathProgramCache]: Analyzing trace with hash 68618, now seen corresponding path program 4 times [2019-11-20 08:13:04,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:13:04,023 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494694313] [2019-11-20 08:13:04,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:13:04,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:04,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:04,032 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:13:04,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:13:04,033 INFO L82 PathProgramCache]: Analyzing trace with hash -728006444, now seen corresponding path program 1 times [2019-11-20 08:13:04,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:13:04,033 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848996788] [2019-11-20 08:13:04,033 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:13:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:13:04,132 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 08:13:04,132 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848996788] [2019-11-20 08:13:04,132 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159214227] [2019-11-20 08:13:04,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 08:13:04,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:13:04,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 08:13:04,195 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:13:04,273 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 08:13:04,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 08:13:04,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2019-11-20 08:13:04,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146822786] [2019-11-20 08:13:04,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 08:13:04,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-20 08:13:04,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2019-11-20 08:13:04,365 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. cyclomatic complexity: 8 Second operand 15 states. [2019-11-20 08:13:04,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 08:13:04,580 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2019-11-20 08:13:04,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 08:13:04,580 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 44 transitions. [2019-11-20 08:13:04,581 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 08:13:04,582 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 23 states and 28 transitions. [2019-11-20 08:13:04,582 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-20 08:13:04,582 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-20 08:13:04,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 28 transitions. [2019-11-20 08:13:04,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 08:13:04,583 INFO L688 BuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2019-11-20 08:13:04,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 28 transitions. [2019-11-20 08:13:04,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2019-11-20 08:13:04,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-20 08:13:04,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2019-11-20 08:13:04,585 INFO L711 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2019-11-20 08:13:04,585 INFO L591 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2019-11-20 08:13:04,585 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-11-20 08:13:04,585 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 27 transitions. [2019-11-20 08:13:04,585 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 08:13:04,585 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 08:13:04,585 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 08:13:04,586 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 08:13:04,586 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 08:13:04,586 INFO L794 eck$LassoCheckResult]: Stem: 729#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 727#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~k~0, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 728#L527 assume !(main_~array_size~0 < 1 || main_~array_size~0 >= 536870911); 730#L527-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~k~0 := 0; 731#L532-3 assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet11; 743#L532-2 main_#t~post10 := main_~k~0;main_~k~0 := 1 + main_#t~post10;havoc main_#t~post10; 744#L532-3 assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet11; 736#L532-2 main_#t~post10 := main_~k~0;main_~k~0 := 1 + main_#t~post10;havoc main_#t~post10; 737#L532-3 assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet11; 748#L532-2 main_#t~post10 := main_~k~0;main_~k~0 := 1 + main_#t~post10;havoc main_#t~post10; 747#L532-3 assume !(main_~k~0 < main_~array_size~0); 746#L532-4 bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset, bubbleSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc bubbleSort_#t~mem4, bubbleSort_#t~mem5, bubbleSort_#t~mem6, bubbleSort_#t~mem7, bubbleSort_#t~post3, bubbleSort_#t~post2, bubbleSort_~numbers.base, bubbleSort_~numbers.offset, bubbleSort_~array_size, bubbleSort_~i~0, bubbleSort_~j~0, bubbleSort_~temp~0;bubbleSort_~numbers.base, bubbleSort_~numbers.offset := bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset;bubbleSort_~array_size := bubbleSort_#in~array_size;havoc bubbleSort_~i~0;havoc bubbleSort_~j~0;havoc bubbleSort_~temp~0;bubbleSort_~i~0 := bubbleSort_~array_size - 1; 745#L515-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 739#L516-3 assume !!(bubbleSort_~j~0 <= bubbleSort_~i~0);call bubbleSort_#t~mem4 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);call bubbleSort_#t~mem5 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 740#L517 assume !(bubbleSort_#t~mem4 > bubbleSort_#t~mem5);havoc bubbleSort_#t~mem5;havoc bubbleSort_#t~mem4; 734#L516-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 735#L516-3 assume !(bubbleSort_~j~0 <= bubbleSort_~i~0); 741#L515-2 bubbleSort_#t~post2 := bubbleSort_~i~0;bubbleSort_~i~0 := bubbleSort_#t~post2 - 1;havoc bubbleSort_#t~post2; 742#L515-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 733#L516-3 [2019-11-20 08:13:04,586 INFO L796 eck$LassoCheckResult]: Loop: 733#L516-3 assume !!(bubbleSort_~j~0 <= bubbleSort_~i~0);call bubbleSort_#t~mem4 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);call bubbleSort_#t~mem5 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 738#L517 assume bubbleSort_#t~mem4 > bubbleSort_#t~mem5;havoc bubbleSort_#t~mem5;havoc bubbleSort_#t~mem4;call bubbleSort_#t~mem6 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);bubbleSort_~temp~0 := bubbleSort_#t~mem6;havoc bubbleSort_#t~mem6;call bubbleSort_#t~mem7 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4);call write~int(bubbleSort_#t~mem7, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);havoc bubbleSort_#t~mem7;call write~int(bubbleSort_~temp~0, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 732#L516-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 733#L516-3 [2019-11-20 08:13:04,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:13:04,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1850126805, now seen corresponding path program 2 times [2019-11-20 08:13:04,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:13:04,587 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818956346] [2019-11-20 08:13:04,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:13:04,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:13:04,737 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:13:04,737 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818956346] [2019-11-20 08:13:04,737 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101754316] [2019-11-20 08:13:04,737 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 08:13:04,796 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 08:13:04,796 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 08:13:04,797 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 08:13:04,798 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:13:04,942 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:13:04,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 08:13:04,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 16 [2019-11-20 08:13:04,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667306298] [2019-11-20 08:13:04,943 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 08:13:04,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:13:04,943 INFO L82 PathProgramCache]: Analyzing trace with hash 68618, now seen corresponding path program 5 times [2019-11-20 08:13:04,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:13:04,943 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499863180] [2019-11-20 08:13:04,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:13:04,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:04,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:04,959 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:13:05,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 08:13:05,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-20 08:13:05,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2019-11-20 08:13:05,064 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. cyclomatic complexity: 8 Second operand 16 states. [2019-11-20 08:13:05,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 08:13:05,294 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2019-11-20 08:13:05,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-20 08:13:05,296 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 40 transitions. [2019-11-20 08:13:05,297 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 08:13:05,297 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 31 states and 40 transitions. [2019-11-20 08:13:05,297 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-20 08:13:05,297 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-20 08:13:05,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 40 transitions. [2019-11-20 08:13:05,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 08:13:05,298 INFO L688 BuchiCegarLoop]: Abstraction has 31 states and 40 transitions. [2019-11-20 08:13:05,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 40 transitions. [2019-11-20 08:13:05,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 25. [2019-11-20 08:13:05,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-20 08:13:05,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2019-11-20 08:13:05,300 INFO L711 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2019-11-20 08:13:05,301 INFO L591 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2019-11-20 08:13:05,301 INFO L424 BuchiCegarLoop]: ======== Iteration 8============ [2019-11-20 08:13:05,301 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 31 transitions. [2019-11-20 08:13:05,301 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 08:13:05,301 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 08:13:05,301 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 08:13:05,302 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 08:13:05,302 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 08:13:05,302 INFO L794 eck$LassoCheckResult]: Stem: 867#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 865#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~k~0, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 866#L527 assume !(main_~array_size~0 < 1 || main_~array_size~0 >= 536870911); 868#L527-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~k~0 := 0; 869#L532-3 assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet11; 870#L532-2 main_#t~post10 := main_~k~0;main_~k~0 := 1 + main_#t~post10;havoc main_#t~post10; 871#L532-3 assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet11; 876#L532-2 main_#t~post10 := main_~k~0;main_~k~0 := 1 + main_#t~post10;havoc main_#t~post10; 888#L532-3 assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet11; 887#L532-2 main_#t~post10 := main_~k~0;main_~k~0 := 1 + main_#t~post10;havoc main_#t~post10; 886#L532-3 assume !(main_~k~0 < main_~array_size~0); 881#L532-4 bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset, bubbleSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc bubbleSort_#t~mem4, bubbleSort_#t~mem5, bubbleSort_#t~mem6, bubbleSort_#t~mem7, bubbleSort_#t~post3, bubbleSort_#t~post2, bubbleSort_~numbers.base, bubbleSort_~numbers.offset, bubbleSort_~array_size, bubbleSort_~i~0, bubbleSort_~j~0, bubbleSort_~temp~0;bubbleSort_~numbers.base, bubbleSort_~numbers.offset := bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset;bubbleSort_~array_size := bubbleSort_#in~array_size;havoc bubbleSort_~i~0;havoc bubbleSort_~j~0;havoc bubbleSort_~temp~0;bubbleSort_~i~0 := bubbleSort_~array_size - 1; 882#L515-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 883#L516-3 assume !!(bubbleSort_~j~0 <= bubbleSort_~i~0);call bubbleSort_#t~mem4 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);call bubbleSort_#t~mem5 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 889#L517 assume !(bubbleSort_#t~mem4 > bubbleSort_#t~mem5);havoc bubbleSort_#t~mem5;havoc bubbleSort_#t~mem4; 874#L516-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 875#L516-3 assume !!(bubbleSort_~j~0 <= bubbleSort_~i~0);call bubbleSort_#t~mem4 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);call bubbleSort_#t~mem5 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 878#L517 assume !(bubbleSort_#t~mem4 > bubbleSort_#t~mem5);havoc bubbleSort_#t~mem5;havoc bubbleSort_#t~mem4; 885#L516-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 884#L516-3 assume !(bubbleSort_~j~0 <= bubbleSort_~i~0); 879#L515-2 bubbleSort_#t~post2 := bubbleSort_~i~0;bubbleSort_~i~0 := bubbleSort_#t~post2 - 1;havoc bubbleSort_#t~post2; 880#L515-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 873#L516-3 [2019-11-20 08:13:05,302 INFO L796 eck$LassoCheckResult]: Loop: 873#L516-3 assume !!(bubbleSort_~j~0 <= bubbleSort_~i~0);call bubbleSort_#t~mem4 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);call bubbleSort_#t~mem5 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 877#L517 assume bubbleSort_#t~mem4 > bubbleSort_#t~mem5;havoc bubbleSort_#t~mem5;havoc bubbleSort_#t~mem4;call bubbleSort_#t~mem6 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);bubbleSort_~temp~0 := bubbleSort_#t~mem6;havoc bubbleSort_#t~mem6;call bubbleSort_#t~mem7 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4);call write~int(bubbleSort_#t~mem7, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);havoc bubbleSort_#t~mem7;call write~int(bubbleSort_~temp~0, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 872#L516-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 873#L516-3 [2019-11-20 08:13:05,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:13:05,303 INFO L82 PathProgramCache]: Analyzing trace with hash -135460634, now seen corresponding path program 3 times [2019-11-20 08:13:05,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:13:05,303 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500769970] [2019-11-20 08:13:05,303 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:13:05,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:05,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:05,373 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:13:05,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:13:05,380 INFO L82 PathProgramCache]: Analyzing trace with hash 68618, now seen corresponding path program 6 times [2019-11-20 08:13:05,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:13:05,381 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766554976] [2019-11-20 08:13:05,381 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:13:05,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:05,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:05,393 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:13:05,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:13:05,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1761549573, now seen corresponding path program 2 times [2019-11-20 08:13:05,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:13:05,395 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257447540] [2019-11-20 08:13:05,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:13:05,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:13:05,712 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 08:13:05,713 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257447540] [2019-11-20 08:13:05,713 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248919358] [2019-11-20 08:13:05,713 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8020ecc9-b332-4bf1-a515-ba44852fbeb0/bin/uautomizer/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 08:13:05,760 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 08:13:05,760 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 08:13:05,761 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-20 08:13:05,762 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:13:05,826 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 08:13:05,826 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2019-11-20 08:13:05,827 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 08:13:05,828 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 08:13:05,829 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 08:13:05,829 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:3 [2019-11-20 08:13:05,845 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-11-20 08:13:05,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 08:13:05,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 13 [2019-11-20 08:13:05,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432930690] [2019-11-20 08:13:05,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 08:13:05,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-20 08:13:05,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2019-11-20 08:13:05,911 INFO L87 Difference]: Start difference. First operand 25 states and 31 transitions. cyclomatic complexity: 9 Second operand 13 states. [2019-11-20 08:13:06,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 08:13:06,112 INFO L93 Difference]: Finished difference Result 47 states and 63 transitions. [2019-11-20 08:13:06,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-20 08:13:06,113 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 63 transitions. [2019-11-20 08:13:06,114 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-20 08:13:06,114 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 47 states and 63 transitions. [2019-11-20 08:13:06,114 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2019-11-20 08:13:06,115 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2019-11-20 08:13:06,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 63 transitions. [2019-11-20 08:13:06,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 08:13:06,115 INFO L688 BuchiCegarLoop]: Abstraction has 47 states and 63 transitions. [2019-11-20 08:13:06,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 63 transitions. [2019-11-20 08:13:06,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 36. [2019-11-20 08:13:06,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-20 08:13:06,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 48 transitions. [2019-11-20 08:13:06,118 INFO L711 BuchiCegarLoop]: Abstraction has 36 states and 48 transitions. [2019-11-20 08:13:06,118 INFO L591 BuchiCegarLoop]: Abstraction has 36 states and 48 transitions. [2019-11-20 08:13:06,118 INFO L424 BuchiCegarLoop]: ======== Iteration 9============ [2019-11-20 08:13:06,119 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 48 transitions. [2019-11-20 08:13:06,119 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 08:13:06,119 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 08:13:06,119 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 08:13:06,120 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 08:13:06,120 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 08:13:06,120 INFO L794 eck$LassoCheckResult]: Stem: 1041#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1039#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~k~0, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 1040#L527 assume !(main_~array_size~0 < 1 || main_~array_size~0 >= 536870911); 1042#L527-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~k~0 := 0; 1043#L532-3 assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet11; 1048#L532-2 main_#t~post10 := main_~k~0;main_~k~0 := 1 + main_#t~post10;havoc main_#t~post10; 1049#L532-3 assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet11; 1054#L532-2 main_#t~post10 := main_~k~0;main_~k~0 := 1 + main_#t~post10;havoc main_#t~post10; 1064#L532-3 assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet11, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet11; 1063#L532-2 main_#t~post10 := main_~k~0;main_~k~0 := 1 + main_#t~post10;havoc main_#t~post10; 1062#L532-3 assume !(main_~k~0 < main_~array_size~0); 1058#L532-4 bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset, bubbleSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc bubbleSort_#t~mem4, bubbleSort_#t~mem5, bubbleSort_#t~mem6, bubbleSort_#t~mem7, bubbleSort_#t~post3, bubbleSort_#t~post2, bubbleSort_~numbers.base, bubbleSort_~numbers.offset, bubbleSort_~array_size, bubbleSort_~i~0, bubbleSort_~j~0, bubbleSort_~temp~0;bubbleSort_~numbers.base, bubbleSort_~numbers.offset := bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset;bubbleSort_~array_size := bubbleSort_#in~array_size;havoc bubbleSort_~i~0;havoc bubbleSort_~j~0;havoc bubbleSort_~temp~0;bubbleSort_~i~0 := bubbleSort_~array_size - 1; 1055#L515-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 1056#L516-3 assume !!(bubbleSort_~j~0 <= bubbleSort_~i~0);call bubbleSort_#t~mem4 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);call bubbleSort_#t~mem5 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 1060#L517 assume !(bubbleSort_#t~mem4 > bubbleSort_#t~mem5);havoc bubbleSort_#t~mem5;havoc bubbleSort_#t~mem4; 1061#L516-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 1074#L516-3 assume !!(bubbleSort_~j~0 <= bubbleSort_~i~0);call bubbleSort_#t~mem4 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);call bubbleSort_#t~mem5 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 1070#L517 assume bubbleSort_#t~mem4 > bubbleSort_#t~mem5;havoc bubbleSort_#t~mem5;havoc bubbleSort_#t~mem4;call bubbleSort_#t~mem6 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);bubbleSort_~temp~0 := bubbleSort_#t~mem6;havoc bubbleSort_#t~mem6;call bubbleSort_#t~mem7 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4);call write~int(bubbleSort_#t~mem7, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);havoc bubbleSort_#t~mem7;call write~int(bubbleSort_~temp~0, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 1046#L516-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 1047#L516-3 assume !(bubbleSort_~j~0 <= bubbleSort_~i~0); 1050#L515-2 bubbleSort_#t~post2 := bubbleSort_~i~0;bubbleSort_~i~0 := bubbleSort_#t~post2 - 1;havoc bubbleSort_#t~post2; 1051#L515-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 1045#L516-3 [2019-11-20 08:13:06,121 INFO L796 eck$LassoCheckResult]: Loop: 1045#L516-3 assume !!(bubbleSort_~j~0 <= bubbleSort_~i~0);call bubbleSort_#t~mem4 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);call bubbleSort_#t~mem5 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 1052#L517 assume bubbleSort_#t~mem4 > bubbleSort_#t~mem5;havoc bubbleSort_#t~mem5;havoc bubbleSort_#t~mem4;call bubbleSort_#t~mem6 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);bubbleSort_~temp~0 := bubbleSort_#t~mem6;havoc bubbleSort_#t~mem6;call bubbleSort_#t~mem7 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4);call write~int(bubbleSort_#t~mem7, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);havoc bubbleSort_#t~mem7;call write~int(bubbleSort_~temp~0, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 1044#L516-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 1045#L516-3 [2019-11-20 08:13:06,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:13:06,121 INFO L82 PathProgramCache]: Analyzing trace with hash -137307676, now seen corresponding path program 3 times [2019-11-20 08:13:06,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:13:06,121 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716872917] [2019-11-20 08:13:06,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:13:06,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:06,156 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:13:06,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:13:06,157 INFO L82 PathProgramCache]: Analyzing trace with hash 68618, now seen corresponding path program 7 times [2019-11-20 08:13:06,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:13:06,157 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191875269] [2019-11-20 08:13:06,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:13:06,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:06,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:06,165 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:13:06,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:13:06,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1724071097, now seen corresponding path program 4 times [2019-11-20 08:13:06,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:13:06,166 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601120178] [2019-11-20 08:13:06,166 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:13:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:06,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:13:06,198 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:13:06,951 WARN L191 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 139 [2019-11-20 08:13:07,117 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-11-20 08:13:07,119 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 08:13:07,119 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 08:13:07,120 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 08:13:07,120 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 08:13:07,120 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 08:13:07,120 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:13:07,120 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 08:13:07,120 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 08:13:07,120 INFO L133 ssoRankerPreferences]: Filename of dumped script: bubblesort-alloca-2.i_Iteration9_Lasso [2019-11-20 08:13:07,120 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 08:13:07,121 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 08:13:07,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:07,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:07,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:07,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:07,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:07,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:07,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:07,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:07,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:07,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:07,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:13:07,228 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: MapEliminator tries to combine Int and (Array Int Int) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.indexEqualityInequalityImpliesValueEquality(MapEliminator.java:850) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.replaceSelectStoreTerm(MapEliminator.java:592) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.replaceStoreTerms(MapEliminator.java:542) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.getRewrittenTransFormula(MapEliminator.java:330) at de.uni_freiburg.informatik.ultimate.lassoranker.preprocessors.MapEliminationLassoPreprocessor.process(MapEliminationLassoPreprocessor.java:109) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.applyPreprocessor(LassoBuilder.java:154) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.preprocess(LassoBuilder.java:262) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.preprocess(LassoAnalysis.java:278) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.(LassoAnalysis.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:612) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.access$16(LassoCheck.java:539) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLassoTermination(LassoCheck.java:957) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:865) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:458) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:380) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-20 08:13:07,231 INFO L168 Benchmark]: Toolchain (without parser) took 10069.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Free memory was 939.3 MB in the beginning and 961.9 MB in the end (delta: -22.6 MB). Peak memory consumption was 167.7 MB. Max. memory is 11.5 GB. [2019-11-20 08:13:07,231 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 08:13:07,232 INFO L168 Benchmark]: CACSL2BoogieTranslator took 625.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -184.5 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-11-20 08:13:07,232 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.88 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. [2019-11-20 08:13:07,233 INFO L168 Benchmark]: Boogie Preprocessor took 30.08 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 08:13:07,233 INFO L168 Benchmark]: RCFGBuilder took 469.03 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-20 08:13:07,233 INFO L168 Benchmark]: BuchiAutomizer took 8896.14 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 48.8 MB). Free memory was 1.1 GB in the beginning and 961.9 MB in the end (delta: 139.6 MB). Peak memory consumption was 188.3 MB. Max. memory is 11.5 GB. [2019-11-20 08:13:07,236 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 625.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -184.5 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.88 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 30.08 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 469.03 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 8896.14 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 48.8 MB). Free memory was 1.1 GB in the beginning and 961.9 MB in the end (delta: 139.6 MB). Peak memory consumption was 188.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: MapEliminator tries to combine Int and (Array Int Int) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: MapEliminator tries to combine Int and (Array Int Int): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.indexEqualityInequalityImpliesValueEquality(MapEliminator.java:850) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...