./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/Ben-Amram-2010LMCS-Ex2.3-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/Ben-Amram-2010LMCS-Ex2.3-alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/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 64bit --witnessprinter.graph.data.programhash 4ab4fc7901859c456c176827e7d5fcf9e4988b17 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 10:09:50,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:09:50,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:09:50,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:09:50,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:09:50,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:09:50,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:09:50,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:09:50,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:09:50,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:09:50,906 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:09:50,907 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:09:50,907 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:09:50,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:09:50,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:09:50,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:09:50,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:09:50,912 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:09:50,913 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:09:50,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:09:50,917 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:09:50,918 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:09:50,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:09:50,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:09:50,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:09:50,922 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:09:50,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:09:50,922 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:09:50,923 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:09:50,923 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:09:50,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:09:50,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:09:50,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:09:50,925 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:09:50,926 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:09:50,926 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:09:50,927 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:09:50,927 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:09:50,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:09:50,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:09:50,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:09:50,929 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 10:09:50,942 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:09:50,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:09:50,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:09:50,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:09:50,944 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 10:09:50,944 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 10:09:50,944 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 10:09:50,944 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 10:09:50,944 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 10:09:50,944 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 10:09:50,944 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 10:09:50,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:09:50,945 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 10:09:50,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:09:50,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:09:50,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 10:09:50,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 10:09:50,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 10:09:50,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:09:50,946 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 10:09:50,946 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:09:50,946 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 10:09:50,946 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:09:50,946 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:09:50,946 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 10:09:50,947 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:09:50,947 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 10:09:50,947 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:09:50,947 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 10:09:50,948 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 10:09:50,948 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_744c80f1-be96-43b5-bea2-3034b980fcc0/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ab4fc7901859c456c176827e7d5fcf9e4988b17 [2019-12-07 10:09:51,058 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:09:51,068 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:09:51,071 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:09:51,072 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:09:51,072 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:09:51,073 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/Ben-Amram-2010LMCS-Ex2.3-alloca.i [2019-12-07 10:09:51,120 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/data/72fc79771/3fd1da8723c64e0eb6369b0e6c8252b0/FLAG0d293634b [2019-12-07 10:09:51,530 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:09:51,530 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/sv-benchmarks/c/termination-memory-alloca/Ben-Amram-2010LMCS-Ex2.3-alloca.i [2019-12-07 10:09:51,539 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/data/72fc79771/3fd1da8723c64e0eb6369b0e6c8252b0/FLAG0d293634b [2019-12-07 10:09:51,897 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/data/72fc79771/3fd1da8723c64e0eb6369b0e6c8252b0 [2019-12-07 10:09:51,899 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:09:51,900 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:09:51,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:09:51,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:09:51,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:09:51,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:09:51" (1/1) ... [2019-12-07 10:09:51,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a44e2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:09:51, skipping insertion in model container [2019-12-07 10:09:51,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:09:51" (1/1) ... [2019-12-07 10:09:51,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:09:51,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:09:52,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:09:52,134 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:09:52,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:09:52,189 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:09:52,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:09:52 WrapperNode [2019-12-07 10:09:52,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:09:52,190 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:09:52,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:09:52,190 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:09:52,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:09:52" (1/1) ... [2019-12-07 10:09:52,204 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:09:52" (1/1) ... [2019-12-07 10:09:52,218 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:09:52,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:09:52,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:09:52,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:09:52,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:09:52" (1/1) ... [2019-12-07 10:09:52,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:09:52" (1/1) ... [2019-12-07 10:09:52,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:09:52" (1/1) ... [2019-12-07 10:09:52,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:09:52" (1/1) ... [2019-12-07 10:09:52,230 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:09:52" (1/1) ... [2019-12-07 10:09:52,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:09:52" (1/1) ... [2019-12-07 10:09:52,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:09:52" (1/1) ... [2019-12-07 10:09:52,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:09:52,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:09:52,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:09:52,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:09:52,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:09:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/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 [2019-12-07 10:09:52,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 10:09:52,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 10:09:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 10:09:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 10:09:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:09:52,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:09:52,438 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:09:52,438 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 10:09:52,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:09:52 BoogieIcfgContainer [2019-12-07 10:09:52,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:09:52,440 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 10:09:52,440 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 10:09:52,442 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 10:09:52,442 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:09:52,442 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 10:09:51" (1/3) ... [2019-12-07 10:09:52,443 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@273b0d0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 10:09:52, skipping insertion in model container [2019-12-07 10:09:52,443 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:09:52,443 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:09:52" (2/3) ... [2019-12-07 10:09:52,443 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@273b0d0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 10:09:52, skipping insertion in model container [2019-12-07 10:09:52,444 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:09:52,444 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:09:52" (3/3) ... [2019-12-07 10:09:52,445 INFO L371 chiAutomizerObserver]: Analyzing ICFG Ben-Amram-2010LMCS-Ex2.3-alloca.i [2019-12-07 10:09:52,474 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 10:09:52,474 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 10:09:52,474 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 10:09:52,474 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:09:52,474 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:09:52,474 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 10:09:52,474 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:09:52,474 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 10:09:52,483 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-12-07 10:09:52,496 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-12-07 10:09:52,496 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:09:52,496 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:09:52,500 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 10:09:52,501 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-12-07 10:09:52,501 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 10:09:52,501 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-12-07 10:09:52,502 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-12-07 10:09:52,502 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:09:52,502 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:09:52,502 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 10:09:52,502 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-12-07 10:09:52,507 INFO L794 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~mem13, main_#t~mem14, main_#t~mem15, main_#t~nondet16, main_#t~mem17, main_#t~mem18, main_#t~nondet19, main_#t~mem20, main_#t~mem8, main_#t~mem9, main_#t~short10, main_#t~mem11, main_#t~short12, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset, main_~z~0.base, main_~z~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4);main_~z~0.base, main_~z~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call write~int(main_#t~nondet5, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet5;call write~int(main_#t~nondet6, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~nondet6;call write~int(main_#t~nondet7, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~nondet7; 5#L555-2true [2019-12-07 10:09:52,507 INFO L796 eck$LassoCheckResult]: Loop: 5#L555-2true call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short10 := main_#t~mem8 > 0; 6#L554-1true assume main_#t~short10;call main_#t~mem9 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short10 := main_#t~mem9 > 0; 9#L554-3true main_#t~short12 := main_#t~short10; 11#L554-4true assume main_#t~short12;call main_#t~mem11 := read~int(main_~z~0.base, main_~z~0.offset, 4);main_#t~short12 := main_#t~mem11 > 0; 4#L554-6true assume !!main_#t~short12;havoc main_#t~short10;havoc main_#t~mem9;havoc main_#t~short12;havoc main_#t~mem8;havoc main_#t~mem11;call main_#t~mem13 := read~int(main_~y~0.base, main_~y~0.offset, 4);call main_#t~mem14 := read~int(main_~x~0.base, main_~x~0.offset, 4); 12#L555true assume main_#t~mem13 > main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;call main_#t~mem15 := read~int(main_~z~0.base, main_~z~0.offset, 4);call write~int(main_#t~mem15, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem15;call write~int(main_#t~nondet16, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet16;call main_#t~mem17 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem17 - 1, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~mem17; 5#L555-2true [2019-12-07 10:09:52,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:09:52,511 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-12-07 10:09:52,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:09:52,517 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225713564] [2019-12-07 10:09:52,517 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:09:52,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:09:52,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:09:52,623 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:09:52,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:09:52,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1097577162, now seen corresponding path program 1 times [2019-12-07 10:09:52,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:09:52,624 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639292732] [2019-12-07 10:09:52,624 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:09:52,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:09:52,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:09:52,658 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:09:52,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:09:52,660 INFO L82 PathProgramCache]: Analyzing trace with hash 177626380, now seen corresponding path program 1 times [2019-12-07 10:09:52,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:09:52,660 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619214683] [2019-12-07 10:09:52,660 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:09:52,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:09:52,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:09:52,706 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:09:52,900 WARN L192 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 67 [2019-12-07 10:09:53,164 WARN L192 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2019-12-07 10:09:53,272 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:09:53,273 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:09:53,273 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:09:53,273 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:09:53,273 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 10:09:53,273 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:09:53,273 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:09:53,273 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:09:53,273 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ben-Amram-2010LMCS-Ex2.3-alloca.i_Iteration1_Lasso [2019-12-07 10:09:53,274 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:09:53,274 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:09:53,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:53,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:53,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:53,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:53,526 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2019-12-07 10:09:53,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:53,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:53,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:53,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:53,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:53,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:53,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:53,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:53,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:53,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:53,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:53,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:53,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:53,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:53,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:53,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:53,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:53,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:54,011 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:09:54,015 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:09:54,019 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 [2019-12-07 10:09:54,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:09:54,020 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:09:54,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:09:54,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:09:54,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:09:54,023 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:09:54,023 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:09:54,024 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/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) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:09:54,029 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 [2019-12-07 10:09:54,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:09:54,030 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:09:54,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:09:54,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:09:54,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:09:54,030 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:09:54,030 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:09:54,032 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/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) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:09:54,035 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 [2019-12-07 10:09:54,036 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:09:54,036 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:09:54,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:09:54,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:09:54,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:09:54,037 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:09:54,037 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:09:54,038 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/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) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:09:54,043 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 [2019-12-07 10:09:54,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:09:54,044 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:09:54,044 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:09:54,044 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:09:54,048 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:09:54,048 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:09:54,052 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:09:54,056 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 [2019-12-07 10:09:54,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:09:54,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:09:54,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:09:54,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:09:54,060 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:09:54,060 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:09:54,064 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:09:54,069 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 [2019-12-07 10:09:54,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:09:54,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:09:54,070 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:09:54,070 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:09:54,072 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:09:54,072 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:09:54,077 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/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) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:09:54,083 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 [2019-12-07 10:09:54,084 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:09:54,085 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:09:54,085 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:09:54,085 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:09:54,090 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:09:54,090 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:09:54,099 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/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) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:09:54,103 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 [2019-12-07 10:09:54,105 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:09:54,105 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:09:54,105 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:09:54,106 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:09:54,114 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:09:54,114 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:09:54,129 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/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) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:09:54,133 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 [2019-12-07 10:09:54,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:09:54,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:09:54,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:09:54,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:09:54,137 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:09:54,138 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:09:54,142 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/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) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:09:54,147 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 [2019-12-07 10:09:54,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:09:54,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:09:54,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:09:54,149 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:09:54,152 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:09:54,152 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:09:54,162 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 10:09:54,176 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-12-07 10:09:54,176 INFO L444 ModelExtractionUtils]: 9 out of 16 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/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) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:09:54,185 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 10:09:54,190 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 10:09:54,190 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 10:09:54,191 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1, v_rep(select (select #memory_int ULTIMATE.start_main_~z~0.base) ULTIMATE.start_main_~z~0.offset)_1, v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_1) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1 + 1*v_rep(select (select #memory_int ULTIMATE.start_main_~z~0.base) ULTIMATE.start_main_~z~0.offset)_1 + 1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_1 Supporting invariants [] [2019-12-07 10:09:54,279 INFO L297 tatePredicateManager]: 23 out of 24 supporting invariants were superfluous and have been removed [2019-12-07 10:09:54,288 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-07 10:09:54,289 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-07 10:09:54,289 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-07 10:09:54,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:09:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:09:54,327 INFO L264 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 10:09:54,328 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:09:54,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:09:54,342 INFO L264 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 10:09:54,343 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:09:54,347 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 10:09:54,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:09:54,407 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-12-07 10:09:54,408 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 5 states. [2019-12-07 10:09:54,499 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 5 states. Result 36 states and 47 transitions. Complement of second has 10 states. [2019-12-07 10:09:54,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-12-07 10:09:54,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 10:09:54,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 18 transitions. [2019-12-07 10:09:54,502 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 2 letters. Loop has 6 letters. [2019-12-07 10:09:54,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:09:54,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 8 letters. Loop has 6 letters. [2019-12-07 10:09:54,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:09:54,504 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 2 letters. Loop has 12 letters. [2019-12-07 10:09:54,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:09:54,504 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 47 transitions. [2019-12-07 10:09:54,506 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-12-07 10:09:54,509 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 20 states and 29 transitions. [2019-12-07 10:09:54,510 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-12-07 10:09:54,510 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-12-07 10:09:54,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 29 transitions. [2019-12-07 10:09:54,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 10:09:54,511 INFO L688 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2019-12-07 10:09:54,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 29 transitions. [2019-12-07 10:09:54,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-12-07 10:09:54,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-12-07 10:09:54,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 29 transitions. [2019-12-07 10:09:54,530 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2019-12-07 10:09:54,530 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2019-12-07 10:09:54,530 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 10:09:54,530 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 29 transitions. [2019-12-07 10:09:54,531 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-12-07 10:09:54,531 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:09:54,531 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:09:54,531 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:09:54,531 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-12-07 10:09:54,532 INFO L794 eck$LassoCheckResult]: Stem: 218#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 209#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~mem13, main_#t~mem14, main_#t~mem15, main_#t~nondet16, main_#t~mem17, main_#t~mem18, main_#t~nondet19, main_#t~mem20, main_#t~mem8, main_#t~mem9, main_#t~short10, main_#t~mem11, main_#t~short12, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset, main_~z~0.base, main_~z~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4);main_~z~0.base, main_~z~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call write~int(main_#t~nondet5, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet5;call write~int(main_#t~nondet6, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~nondet6;call write~int(main_#t~nondet7, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~nondet7; 210#L555-2 call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short10 := main_#t~mem8 > 0; 215#L554-1 assume !main_#t~short10; 216#L554-3 main_#t~short12 := main_#t~short10; 219#L554-4 assume !main_#t~short12; 205#L554-6 assume !!main_#t~short12;havoc main_#t~short10;havoc main_#t~mem9;havoc main_#t~short12;havoc main_#t~mem8;havoc main_#t~mem11;call main_#t~mem13 := read~int(main_~y~0.base, main_~y~0.offset, 4);call main_#t~mem14 := read~int(main_~x~0.base, main_~x~0.offset, 4); 206#L555 assume !(main_#t~mem13 > main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;call main_#t~mem18 := read~int(main_~z~0.base, main_~z~0.offset, 4);call write~int(main_#t~mem18 - 1, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~mem18;call write~int(main_#t~nondet19, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet19;call main_#t~mem20 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem20 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem20; 211#L555-2 [2019-12-07 10:09:54,532 INFO L796 eck$LassoCheckResult]: Loop: 211#L555-2 call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short10 := main_#t~mem8 > 0; 212#L554-1 assume main_#t~short10;call main_#t~mem9 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short10 := main_#t~mem9 > 0; 224#L554-3 main_#t~short12 := main_#t~short10; 223#L554-4 assume main_#t~short12;call main_#t~mem11 := read~int(main_~z~0.base, main_~z~0.offset, 4);main_#t~short12 := main_#t~mem11 > 0; 222#L554-6 assume !!main_#t~short12;havoc main_#t~short10;havoc main_#t~mem9;havoc main_#t~short12;havoc main_#t~mem8;havoc main_#t~mem11;call main_#t~mem13 := read~int(main_~y~0.base, main_~y~0.offset, 4);call main_#t~mem14 := read~int(main_~x~0.base, main_~x~0.offset, 4); 221#L555 assume main_#t~mem13 > main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;call main_#t~mem15 := read~int(main_~z~0.base, main_~z~0.offset, 4);call write~int(main_#t~mem15, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem15;call write~int(main_#t~nondet16, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet16;call main_#t~mem17 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem17 - 1, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~mem17; 211#L555-2 [2019-12-07 10:09:54,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:09:54,532 INFO L82 PathProgramCache]: Analyzing trace with hash 179475346, now seen corresponding path program 1 times [2019-12-07 10:09:54,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:09:54,532 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106745457] [2019-12-07 10:09:54,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:09:54,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:09:54,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:09:54,566 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106745457] [2019-12-07 10:09:54,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:09:54,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 10:09:54,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188317050] [2019-12-07 10:09:54,569 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 10:09:54,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:09:54,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1097577162, now seen corresponding path program 2 times [2019-12-07 10:09:54,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:09:54,570 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594024818] [2019-12-07 10:09:54,570 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:09:54,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:09:54,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:09:54,590 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:09:54,742 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 67 [2019-12-07 10:09:54,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:09:54,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 10:09:54,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:09:54,784 INFO L87 Difference]: Start difference. First operand 20 states and 29 transitions. cyclomatic complexity: 11 Second operand 3 states. [2019-12-07 10:09:54,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:09:54,793 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2019-12-07 10:09:54,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:09:54,794 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 29 transitions. [2019-12-07 10:09:54,795 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-12-07 10:09:54,795 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 20 states and 26 transitions. [2019-12-07 10:09:54,796 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2019-12-07 10:09:54,796 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-12-07 10:09:54,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 26 transitions. [2019-12-07 10:09:54,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 10:09:54,796 INFO L688 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2019-12-07 10:09:54,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 26 transitions. [2019-12-07 10:09:54,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-12-07 10:09:54,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-12-07 10:09:54,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2019-12-07 10:09:54,798 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2019-12-07 10:09:54,798 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2019-12-07 10:09:54,798 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 10:09:54,798 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions. [2019-12-07 10:09:54,798 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-12-07 10:09:54,798 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:09:54,799 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:09:54,799 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:09:54,799 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-12-07 10:09:54,799 INFO L794 eck$LassoCheckResult]: Stem: 267#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 254#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~mem13, main_#t~mem14, main_#t~mem15, main_#t~nondet16, main_#t~mem17, main_#t~mem18, main_#t~nondet19, main_#t~mem20, main_#t~mem8, main_#t~mem9, main_#t~short10, main_#t~mem11, main_#t~short12, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset, main_~z~0.base, main_~z~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4);main_~z~0.base, main_~z~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call write~int(main_#t~nondet5, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet5;call write~int(main_#t~nondet6, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~nondet6;call write~int(main_#t~nondet7, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~nondet7; 255#L555-2 call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short10 := main_#t~mem8 > 0; 264#L554-1 assume !main_#t~short10; 265#L554-3 main_#t~short12 := main_#t~short10; 268#L554-4 assume main_#t~short12;call main_#t~mem11 := read~int(main_~z~0.base, main_~z~0.offset, 4);main_#t~short12 := main_#t~mem11 > 0; 256#L554-6 assume !!main_#t~short12;havoc main_#t~short10;havoc main_#t~mem9;havoc main_#t~short12;havoc main_#t~mem8;havoc main_#t~mem11;call main_#t~mem13 := read~int(main_~y~0.base, main_~y~0.offset, 4);call main_#t~mem14 := read~int(main_~x~0.base, main_~x~0.offset, 4); 257#L555 assume !(main_#t~mem13 > main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;call main_#t~mem18 := read~int(main_~z~0.base, main_~z~0.offset, 4);call write~int(main_#t~mem18 - 1, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~mem18;call write~int(main_#t~nondet19, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet19;call main_#t~mem20 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem20 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem20; 260#L555-2 [2019-12-07 10:09:54,799 INFO L796 eck$LassoCheckResult]: Loop: 260#L555-2 call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short10 := main_#t~mem8 > 0; 261#L554-1 assume main_#t~short10;call main_#t~mem9 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short10 := main_#t~mem9 > 0; 273#L554-3 main_#t~short12 := main_#t~short10; 272#L554-4 assume main_#t~short12;call main_#t~mem11 := read~int(main_~z~0.base, main_~z~0.offset, 4);main_#t~short12 := main_#t~mem11 > 0; 271#L554-6 assume !!main_#t~short12;havoc main_#t~short10;havoc main_#t~mem9;havoc main_#t~short12;havoc main_#t~mem8;havoc main_#t~mem11;call main_#t~mem13 := read~int(main_~y~0.base, main_~y~0.offset, 4);call main_#t~mem14 := read~int(main_~x~0.base, main_~x~0.offset, 4); 270#L555 assume main_#t~mem13 > main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;call main_#t~mem15 := read~int(main_~z~0.base, main_~z~0.offset, 4);call write~int(main_#t~mem15, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem15;call write~int(main_#t~nondet16, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet16;call main_#t~mem17 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem17 - 1, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~mem17; 260#L555-2 [2019-12-07 10:09:54,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:09:54,799 INFO L82 PathProgramCache]: Analyzing trace with hash 179473424, now seen corresponding path program 1 times [2019-12-07 10:09:54,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:09:54,800 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337655207] [2019-12-07 10:09:54,800 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:09:54,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:09:54,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:09:54,821 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337655207] [2019-12-07 10:09:54,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:09:54,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 10:09:54,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990340679] [2019-12-07 10:09:54,821 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 10:09:54,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:09:54,822 INFO L82 PathProgramCache]: Analyzing trace with hash 1097577162, now seen corresponding path program 3 times [2019-12-07 10:09:54,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:09:54,822 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033349796] [2019-12-07 10:09:54,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:09:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:09:54,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:09:54,846 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:09:55,023 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 67 [2019-12-07 10:09:55,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:09:55,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:09:55,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:09:55,061 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. cyclomatic complexity: 8 Second operand 4 states. [2019-12-07 10:09:55,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:09:55,077 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2019-12-07 10:09:55,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:09:55,077 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 29 transitions. [2019-12-07 10:09:55,078 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-12-07 10:09:55,079 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 20 states and 23 transitions. [2019-12-07 10:09:55,079 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2019-12-07 10:09:55,079 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-12-07 10:09:55,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 23 transitions. [2019-12-07 10:09:55,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 10:09:55,079 INFO L688 BuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2019-12-07 10:09:55,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 23 transitions. [2019-12-07 10:09:55,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-12-07 10:09:55,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-12-07 10:09:55,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2019-12-07 10:09:55,081 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2019-12-07 10:09:55,081 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2019-12-07 10:09:55,081 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 10:09:55,081 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 23 transitions. [2019-12-07 10:09:55,081 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-12-07 10:09:55,081 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:09:55,081 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:09:55,082 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:09:55,082 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-12-07 10:09:55,082 INFO L794 eck$LassoCheckResult]: Stem: 322#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 313#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~mem13, main_#t~mem14, main_#t~mem15, main_#t~nondet16, main_#t~mem17, main_#t~mem18, main_#t~nondet19, main_#t~mem20, main_#t~mem8, main_#t~mem9, main_#t~short10, main_#t~mem11, main_#t~short12, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset, main_~z~0.base, main_~z~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4);main_~z~0.base, main_~z~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call write~int(main_#t~nondet5, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet5;call write~int(main_#t~nondet6, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~nondet6;call write~int(main_#t~nondet7, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~nondet7; 314#L555-2 call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short10 := main_#t~mem8 > 0; 319#L554-1 assume main_#t~short10;call main_#t~mem9 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short10 := main_#t~mem9 > 0; 320#L554-3 main_#t~short12 := main_#t~short10; 323#L554-4 assume main_#t~short12;call main_#t~mem11 := read~int(main_~z~0.base, main_~z~0.offset, 4);main_#t~short12 := main_#t~mem11 > 0; 309#L554-6 assume !!main_#t~short12;havoc main_#t~short10;havoc main_#t~mem9;havoc main_#t~short12;havoc main_#t~mem8;havoc main_#t~mem11;call main_#t~mem13 := read~int(main_~y~0.base, main_~y~0.offset, 4);call main_#t~mem14 := read~int(main_~x~0.base, main_~x~0.offset, 4); 310#L555 assume !(main_#t~mem13 > main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;call main_#t~mem18 := read~int(main_~z~0.base, main_~z~0.offset, 4);call write~int(main_#t~mem18 - 1, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~mem18;call write~int(main_#t~nondet19, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet19;call main_#t~mem20 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem20 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem20; 315#L555-2 [2019-12-07 10:09:55,082 INFO L796 eck$LassoCheckResult]: Loop: 315#L555-2 call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short10 := main_#t~mem8 > 0; 316#L554-1 assume main_#t~short10;call main_#t~mem9 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short10 := main_#t~mem9 > 0; 328#L554-3 main_#t~short12 := main_#t~short10; 327#L554-4 assume main_#t~short12;call main_#t~mem11 := read~int(main_~z~0.base, main_~z~0.offset, 4);main_#t~short12 := main_#t~mem11 > 0; 326#L554-6 assume !!main_#t~short12;havoc main_#t~short10;havoc main_#t~mem9;havoc main_#t~short12;havoc main_#t~mem8;havoc main_#t~mem11;call main_#t~mem13 := read~int(main_~y~0.base, main_~y~0.offset, 4);call main_#t~mem14 := read~int(main_~x~0.base, main_~x~0.offset, 4); 325#L555 assume main_#t~mem13 > main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;call main_#t~mem15 := read~int(main_~z~0.base, main_~z~0.offset, 4);call write~int(main_#t~mem15, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem15;call write~int(main_#t~nondet16, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet16;call main_#t~mem17 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem17 - 1, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~mem17; 315#L555-2 [2019-12-07 10:09:55,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:09:55,082 INFO L82 PathProgramCache]: Analyzing trace with hash 177626382, now seen corresponding path program 1 times [2019-12-07 10:09:55,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:09:55,082 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432544] [2019-12-07 10:09:55,083 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:09:55,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:09:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:09:55,125 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:09:55,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:09:55,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1097577162, now seen corresponding path program 4 times [2019-12-07 10:09:55,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:09:55,126 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708906028] [2019-12-07 10:09:55,126 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:09:55,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:09:55,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:09:55,146 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:09:55,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:09:55,146 INFO L82 PathProgramCache]: Analyzing trace with hash -692497897, now seen corresponding path program 1 times [2019-12-07 10:09:55,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:09:55,147 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627984585] [2019-12-07 10:09:55,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:09:55,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:09:55,194 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:09:55,194 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627984585] [2019-12-07 10:09:55,194 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797756422] [2019-12-07 10:09:55,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 10:09:55,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:09:55,232 INFO L264 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-07 10:09:55,233 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:09:55,294 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:09:55,294 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 85 treesize of output 100 [2019-12-07 10:09:55,295 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 10:09:55,313 INFO L614 ElimStorePlain]: treesize reduction 55, result has 32.9 percent of original size [2019-12-07 10:09:55,314 INFO L534 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 10:09:55,314 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:92, output treesize:24 [2019-12-07 10:09:55,327 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 10:09:55,332 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-12-07 10:09:55,332 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 10:09:55,337 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:09:55,337 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 20 [2019-12-07 10:09:55,338 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 10:09:55,339 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 10:09:55,340 INFO L534 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 10:09:55,344 INFO L614 ElimStorePlain]: treesize reduction 20, result has 13.0 percent of original size [2019-12-07 10:09:55,344 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 10:09:55,344 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:44, output treesize:3 [2019-12-07 10:09:55,351 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:09:55,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 10:09:55,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2019-12-07 10:09:55,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960634403] [2019-12-07 10:09:55,512 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 67 [2019-12-07 10:09:55,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:09:55,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 10:09:55,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-07 10:09:55,553 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. cyclomatic complexity: 5 Second operand 8 states. [2019-12-07 10:09:55,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:09:55,630 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2019-12-07 10:09:55,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 10:09:55,631 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 22 transitions. [2019-12-07 10:09:55,632 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-12-07 10:09:55,632 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 22 transitions. [2019-12-07 10:09:55,632 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2019-12-07 10:09:55,632 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-12-07 10:09:55,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 22 transitions. [2019-12-07 10:09:55,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 10:09:55,632 INFO L688 BuchiCegarLoop]: Abstraction has 20 states and 22 transitions. [2019-12-07 10:09:55,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 22 transitions. [2019-12-07 10:09:55,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2019-12-07 10:09:55,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 10:09:55,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-12-07 10:09:55,633 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-12-07 10:09:55,633 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-12-07 10:09:55,634 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 10:09:55,634 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 17 transitions. [2019-12-07 10:09:55,634 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-12-07 10:09:55,634 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:09:55,634 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:09:55,634 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 10:09:55,634 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-12-07 10:09:55,634 INFO L794 eck$LassoCheckResult]: Stem: 419#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 411#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~mem13, main_#t~mem14, main_#t~mem15, main_#t~nondet16, main_#t~mem17, main_#t~mem18, main_#t~nondet19, main_#t~mem20, main_#t~mem8, main_#t~mem9, main_#t~short10, main_#t~mem11, main_#t~short12, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset, main_~z~0.base, main_~z~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4);main_~z~0.base, main_~z~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call write~int(main_#t~nondet5, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet5;call write~int(main_#t~nondet6, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~nondet6;call write~int(main_#t~nondet7, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~nondet7; 412#L555-2 call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short10 := main_#t~mem8 > 0; 414#L554-1 [2019-12-07 10:09:55,634 INFO L796 eck$LassoCheckResult]: Loop: 414#L554-1 assume main_#t~short10;call main_#t~mem9 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short10 := main_#t~mem9 > 0; 417#L554-3 main_#t~short12 := main_#t~short10; 420#L554-4 assume main_#t~short12;call main_#t~mem11 := read~int(main_~z~0.base, main_~z~0.offset, 4);main_#t~short12 := main_#t~mem11 > 0; 407#L554-6 assume !!main_#t~short12;havoc main_#t~short10;havoc main_#t~mem9;havoc main_#t~short12;havoc main_#t~mem8;havoc main_#t~mem11;call main_#t~mem13 := read~int(main_~y~0.base, main_~y~0.offset, 4);call main_#t~mem14 := read~int(main_~x~0.base, main_~x~0.offset, 4); 408#L555 assume !(main_#t~mem13 > main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;call main_#t~mem18 := read~int(main_~z~0.base, main_~z~0.offset, 4);call write~int(main_#t~mem18 - 1, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~mem18;call write~int(main_#t~nondet19, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet19;call main_#t~mem20 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem20 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem20; 413#L555-2 call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short10 := main_#t~mem8 > 0; 414#L554-1 [2019-12-07 10:09:55,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:09:55,635 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2019-12-07 10:09:55,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:09:55,635 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371977431] [2019-12-07 10:09:55,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:09:55,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:09:55,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:09:55,650 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:09:55,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:09:55,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1187255894, now seen corresponding path program 1 times [2019-12-07 10:09:55,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:09:55,651 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476177032] [2019-12-07 10:09:55,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:09:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:09:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:09:55,665 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:09:55,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:09:55,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1211450553, now seen corresponding path program 2 times [2019-12-07 10:09:55,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:09:55,666 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531153332] [2019-12-07 10:09:55,666 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:09:55,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:09:55,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:09:55,690 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:09:55,899 WARN L192 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2019-12-07 10:09:56,036 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2019-12-07 10:09:56,273 WARN L192 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-12-07 10:09:56,557 WARN L192 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2019-12-07 10:09:56,560 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:09:56,560 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:09:56,560 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:09:56,560 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:09:56,560 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 10:09:56,560 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:09:56,560 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:09:56,560 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:09:56,560 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ben-Amram-2010LMCS-Ex2.3-alloca.i_Iteration5_Lasso [2019-12-07 10:09:56,560 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:09:56,560 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:09:56,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:56,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:56,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:56,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:56,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:56,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:56,997 WARN L192 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2019-12-07 10:09:57,108 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-12-07 10:09:57,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:57,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:57,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:57,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:57,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:57,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:57,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:57,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:57,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:57,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:57,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:57,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:57,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:57,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:57,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:57,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:57,545 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:09:57,546 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/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 [2019-12-07 10:09:57,548 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 [2019-12-07 10:09:57,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:09:57,550 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:09:57,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:09:57,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:09:57,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:09:57,550 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:09:57,550 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:09:57,551 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/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 [2019-12-07 10:09:57,555 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 [2019-12-07 10:09:57,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:09:57,556 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:09:57,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:09:57,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:09:57,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:09:57,557 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:09:57,557 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:09:57,558 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/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 [2019-12-07 10:09:57,561 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 [2019-12-07 10:09:57,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:09:57,562 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:09:57,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:09:57,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:09:57,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:09:57,563 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:09:57,563 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:09:57,564 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/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 [2019-12-07 10:09:57,567 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 [2019-12-07 10:09:57,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:09:57,568 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:09:57,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:09:57,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:09:57,569 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:09:57,569 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:09:57,569 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:09:57,570 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:09:57,573 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 [2019-12-07 10:09:57,574 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:09:57,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:09:57,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:09:57,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:09:57,575 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:09:57,576 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:09:57,578 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/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 [2019-12-07 10:09:57,582 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 [2019-12-07 10:09:57,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:09:57,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:09:57,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:09:57,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:09:57,589 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:09:57,589 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:09:57,599 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/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 [2019-12-07 10:09:57,604 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 [2019-12-07 10:09:57,605 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:09:57,605 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:09:57,605 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:09:57,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:09:57,607 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:09:57,607 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:09:57,611 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/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) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:09:57,619 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 [2019-12-07 10:09:57,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:09:57,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:09:57,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:09:57,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:09:57,621 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:09:57,621 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:09:57,623 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/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 [2019-12-07 10:09:57,626 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 [2019-12-07 10:09:57,627 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:09:57,628 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:09:57,628 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:09:57,628 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:09:57,629 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:09:57,629 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:09:57,632 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 10:09:57,642 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-12-07 10:09:57,642 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/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) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:09:57,646 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 10:09:57,648 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 10:09:57,649 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 10:09:57,649 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~z~0.base) ULTIMATE.start_main_~z~0.offset)_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~z~0.base) ULTIMATE.start_main_~z~0.offset)_2 Supporting invariants [] [2019-12-07 10:09:57,732 INFO L297 tatePredicateManager]: 22 out of 24 supporting invariants were superfluous and have been removed [2019-12-07 10:09:57,735 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-07 10:09:57,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:09:57,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:09:57,762 INFO L264 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-07 10:09:57,763 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:09:57,771 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:09:57,771 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 27 [2019-12-07 10:09:57,771 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 10:09:57,775 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:09:57,776 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 10:09:57,776 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:14 [2019-12-07 10:09:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:09:57,792 INFO L264 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 10:09:57,793 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:09:57,794 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 10:09:57,857 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:09:57,858 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 58 [2019-12-07 10:09:57,859 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 10:09:57,885 INFO L614 ElimStorePlain]: treesize reduction 18, result has 73.1 percent of original size [2019-12-07 10:09:57,886 INFO L534 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-12-07 10:09:57,886 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:108, output treesize:42 [2019-12-07 10:09:57,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:09:57,913 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2019-12-07 10:09:57,913 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 4 Second operand 7 states. [2019-12-07 10:09:57,957 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 4. Second operand 7 states. Result 37 states and 40 transitions. Complement of second has 10 states. [2019-12-07 10:09:57,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2019-12-07 10:09:57,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-07 10:09:57,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 10 transitions. [2019-12-07 10:09:57,958 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 10 transitions. Stem has 3 letters. Loop has 6 letters. [2019-12-07 10:09:57,958 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:09:57,958 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 10 transitions. Stem has 9 letters. Loop has 6 letters. [2019-12-07 10:09:57,958 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:09:57,958 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 10 transitions. Stem has 3 letters. Loop has 12 letters. [2019-12-07 10:09:57,959 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:09:57,959 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 40 transitions. [2019-12-07 10:09:57,960 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-12-07 10:09:57,960 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 20 states and 21 transitions. [2019-12-07 10:09:57,960 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2019-12-07 10:09:57,961 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2019-12-07 10:09:57,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 21 transitions. [2019-12-07 10:09:57,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 10:09:57,961 INFO L688 BuchiCegarLoop]: Abstraction has 20 states and 21 transitions. [2019-12-07 10:09:57,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 21 transitions. [2019-12-07 10:09:57,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2019-12-07 10:09:57,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 10:09:57,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2019-12-07 10:09:57,962 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2019-12-07 10:09:57,962 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2019-12-07 10:09:57,963 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-12-07 10:09:57,963 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 16 transitions. [2019-12-07 10:09:57,963 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-12-07 10:09:57,963 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:09:57,963 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:09:57,963 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:09:57,963 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-12-07 10:09:57,963 INFO L794 eck$LassoCheckResult]: Stem: 630#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 623#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~mem13, main_#t~mem14, main_#t~mem15, main_#t~nondet16, main_#t~mem17, main_#t~mem18, main_#t~nondet19, main_#t~mem20, main_#t~mem8, main_#t~mem9, main_#t~short10, main_#t~mem11, main_#t~short12, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset, main_~z~0.base, main_~z~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4);main_~z~0.base, main_~z~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call write~int(main_#t~nondet5, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet5;call write~int(main_#t~nondet6, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~nondet6;call write~int(main_#t~nondet7, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~nondet7; 624#L555-2 call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short10 := main_#t~mem8 > 0; 625#L554-1 assume main_#t~short10;call main_#t~mem9 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short10 := main_#t~mem9 > 0; 629#L554-3 main_#t~short12 := main_#t~short10; 632#L554-4 assume main_#t~short12;call main_#t~mem11 := read~int(main_~z~0.base, main_~z~0.offset, 4);main_#t~short12 := main_#t~mem11 > 0; 621#L554-6 assume !!main_#t~short12;havoc main_#t~short10;havoc main_#t~mem9;havoc main_#t~short12;havoc main_#t~mem8;havoc main_#t~mem11;call main_#t~mem13 := read~int(main_~y~0.base, main_~y~0.offset, 4);call main_#t~mem14 := read~int(main_~x~0.base, main_~x~0.offset, 4); 622#L555 assume main_#t~mem13 > main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;call main_#t~mem15 := read~int(main_~z~0.base, main_~z~0.offset, 4);call write~int(main_#t~mem15, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem15;call write~int(main_#t~nondet16, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet16;call main_#t~mem17 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem17 - 1, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~mem17; 626#L555-2 call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short10 := main_#t~mem8 > 0; 627#L554-1 [2019-12-07 10:09:57,964 INFO L796 eck$LassoCheckResult]: Loop: 627#L554-1 assume main_#t~short10;call main_#t~mem9 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short10 := main_#t~mem9 > 0; 628#L554-3 main_#t~short12 := main_#t~short10; 631#L554-4 assume main_#t~short12;call main_#t~mem11 := read~int(main_~z~0.base, main_~z~0.offset, 4);main_#t~short12 := main_#t~mem11 > 0; 619#L554-6 assume !!main_#t~short12;havoc main_#t~short10;havoc main_#t~mem9;havoc main_#t~short12;havoc main_#t~mem8;havoc main_#t~mem11;call main_#t~mem13 := read~int(main_~y~0.base, main_~y~0.offset, 4);call main_#t~mem14 := read~int(main_~x~0.base, main_~x~0.offset, 4); 620#L555 assume !(main_#t~mem13 > main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;call main_#t~mem18 := read~int(main_~z~0.base, main_~z~0.offset, 4);call write~int(main_#t~mem18 - 1, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~mem18;call write~int(main_#t~nondet19, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet19;call main_#t~mem20 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem20 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem20; 633#L555-2 call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short10 := main_#t~mem8 > 0; 627#L554-1 [2019-12-07 10:09:57,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:09:57,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1211450491, now seen corresponding path program 2 times [2019-12-07 10:09:57,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:09:57,964 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595830172] [2019-12-07 10:09:57,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:09:57,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:09:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:09:57,987 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:09:57,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:09:57,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1187255894, now seen corresponding path program 2 times [2019-12-07 10:09:57,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:09:57,987 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185178405] [2019-12-07 10:09:57,988 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:09:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:09:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:09:57,998 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:09:57,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:09:57,999 INFO L82 PathProgramCache]: Analyzing trace with hash 816748368, now seen corresponding path program 2 times [2019-12-07 10:09:57,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:09:57,999 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396923354] [2019-12-07 10:09:57,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:09:58,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:09:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:09:58,020 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:09:58,211 WARN L192 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2019-12-07 10:09:58,333 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2019-12-07 10:09:59,119 WARN L192 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 123 [2019-12-07 10:09:59,834 WARN L192 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-12-07 10:09:59,837 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:09:59,837 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:09:59,837 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:09:59,837 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:09:59,837 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 10:09:59,837 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:09:59,837 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:09:59,837 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:09:59,837 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ben-Amram-2010LMCS-Ex2.3-alloca.i_Iteration6_Lasso [2019-12-07 10:09:59,837 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:09:59,837 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:09:59,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:59,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:59,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:59,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:59,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:59,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:59,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:59,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:59,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:59,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:59,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:59,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:59,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:59,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:09:59,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:10:00,430 WARN L192 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2019-12-07 10:10:00,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:10:00,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:10:00,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:10:00,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:10:00,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:10:00,942 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2019-12-07 10:10:01,018 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:10:01,019 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:10:01,021 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 [2019-12-07 10:10:01,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:10:01,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:10:01,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:10:01,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:10:01,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:10:01,023 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:10:01,023 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:10:01,023 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:10:01,028 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 [2019-12-07 10:10:01,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:10:01,029 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:10:01,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:10:01,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:10:01,029 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:10:01,029 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:10:01,029 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:10:01,030 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:10:01,034 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 [2019-12-07 10:10:01,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:10:01,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:10:01,035 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:10:01,035 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:10:01,036 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:10:01,036 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:10:01,038 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:10:01,042 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 [2019-12-07 10:10:01,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:10:01,044 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:10:01,044 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:10:01,044 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:10:01,044 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:10:01,044 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:10:01,044 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:10:01,045 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:10:01,049 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 [2019-12-07 10:10:01,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:10:01,050 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:10:01,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:10:01,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:10:01,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:10:01,050 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:10:01,050 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:10:01,051 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:10:01,055 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 [2019-12-07 10:10:01,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:10:01,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:10:01,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:10:01,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:10:01,058 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:10:01,058 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:10:01,060 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/z3 Starting monitored process 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:10:01,064 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 [2019-12-07 10:10:01,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:10:01,065 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:10:01,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:10:01,065 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:10:01,065 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:10:01,065 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:10:01,065 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:10:01,066 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:10:01,070 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 [2019-12-07 10:10:01,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:10:01,071 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:10:01,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:10:01,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:10:01,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:10:01,071 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:10:01,072 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:10:01,073 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/z3 Starting monitored process 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:10:01,076 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 [2019-12-07 10:10:01,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:10:01,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:10:01,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:10:01,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:10:01,078 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:10:01,078 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:10:01,080 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/z3 Starting monitored process 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:10:01,084 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 [2019-12-07 10:10:01,085 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:10:01,085 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:10:01,085 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:10:01,085 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:10:01,085 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:10:01,085 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:10:01,085 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:10:01,086 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:10:01,090 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 [2019-12-07 10:10:01,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:10:01,091 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:10:01,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:10:01,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:10:01,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:10:01,091 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:10:01,091 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:10:01,092 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:10:01,096 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 [2019-12-07 10:10:01,097 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:10:01,097 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:10:01,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:10:01,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:10:01,097 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:10:01,097 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:10:01,097 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:10:01,098 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/z3 Starting monitored process 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:10:01,101 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 [2019-12-07 10:10:01,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:10:01,102 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:10:01,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:10:01,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:10:01,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:10:01,103 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:10:01,103 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:10:01,104 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/z3 Starting monitored process 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:10:01,107 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 [2019-12-07 10:10:01,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:10:01,108 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:10:01,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:10:01,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:10:01,109 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:10:01,109 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:10:01,109 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:10:01,110 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/z3 Starting monitored process 38 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:10:01,113 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 [2019-12-07 10:10:01,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:10:01,115 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:10:01,115 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:10:01,115 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:10:01,116 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:10:01,116 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:10:01,120 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/z3 Starting monitored process 39 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:10:01,124 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 [2019-12-07 10:10:01,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:10:01,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:10:01,125 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:10:01,125 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:10:01,126 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:10:01,126 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:10:01,130 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/z3 Starting monitored process 40 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:10:01,134 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 [2019-12-07 10:10:01,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:10:01,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:10:01,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:10:01,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:10:01,136 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:10:01,136 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:10:01,138 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/z3 Starting monitored process 41 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:10:01,141 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 [2019-12-07 10:10:01,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:10:01,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:10:01,142 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:10:01,142 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:10:01,143 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:10:01,143 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:10:01,145 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/z3 Starting monitored process 42 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:10:01,148 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 [2019-12-07 10:10:01,150 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:10:01,150 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2019-12-07 10:10:01,150 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-12-07 10:10:01,150 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:10:01,160 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2019-12-07 10:10:01,160 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-12-07 10:10:01,199 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 10:10:01,228 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-12-07 10:10:01,228 INFO L444 ModelExtractionUtils]: 16 out of 36 variables were initially zero. Simplification set additionally 18 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_744c80f1-be96-43b5-bea2-3034b980fcc0/bin/uautomizer/z3 Starting monitored process 43 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:10:01,230 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 10:10:01,233 INFO L438 nArgumentSynthesizer]: Removed 4 redundant supporting invariants from a total of 4. [2019-12-07 10:10:01,233 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 10:10:01,233 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~z~0.base) ULTIMATE.start_main_~z~0.offset)_3) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~z~0.base) ULTIMATE.start_main_~z~0.offset)_3 Supporting invariants [] [2019-12-07 10:10:01,334 INFO L297 tatePredicateManager]: 22 out of 24 supporting invariants were superfluous and have been removed [2019-12-07 10:10:01,337 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-07 10:10:01,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:10:01,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:10:01,364 INFO L264 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-07 10:10:01,365 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:10:01,371 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:10:01,371 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 27 [2019-12-07 10:10:01,372 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 10:10:01,375 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:10:01,376 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 10:10:01,376 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:14 [2019-12-07 10:10:01,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:10:01,391 INFO L264 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 10:10:01,391 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:10:01,392 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 10:10:01,449 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:10:01,449 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 58 [2019-12-07 10:10:01,450 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 10:10:01,475 INFO L614 ElimStorePlain]: treesize reduction 18, result has 73.1 percent of original size [2019-12-07 10:10:01,476 INFO L534 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-12-07 10:10:01,476 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:108, output treesize:42 [2019-12-07 10:10:01,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:10:01,497 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2019-12-07 10:10:01,497 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 16 transitions. cyclomatic complexity: 3 Second operand 7 states. [2019-12-07 10:10:01,539 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 16 transitions. cyclomatic complexity: 3. Second operand 7 states. Result 24 states and 25 transitions. Complement of second has 10 states. [2019-12-07 10:10:01,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2019-12-07 10:10:01,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-07 10:10:01,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2019-12-07 10:10:01,540 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 7 transitions. Stem has 9 letters. Loop has 6 letters. [2019-12-07 10:10:01,540 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:10:01,540 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 10:10:01,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:10:01,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:10:01,566 INFO L264 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-07 10:10:01,566 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:10:01,573 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:10:01,573 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 27 [2019-12-07 10:10:01,573 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 10:10:01,586 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:10:01,586 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 10:10:01,586 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:14 [2019-12-07 10:10:01,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:10:01,601 INFO L264 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 10:10:01,602 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:10:01,603 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 10:10:01,660 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:10:01,660 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 58 [2019-12-07 10:10:01,661 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 10:10:01,690 INFO L614 ElimStorePlain]: treesize reduction 18, result has 73.1 percent of original size [2019-12-07 10:10:01,691 INFO L534 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-12-07 10:10:01,691 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:108, output treesize:42 [2019-12-07 10:10:01,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:10:01,716 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 4 loop predicates [2019-12-07 10:10:01,716 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 16 transitions. cyclomatic complexity: 3 Second operand 7 states. [2019-12-07 10:10:01,759 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 16 transitions. cyclomatic complexity: 3. Second operand 7 states. Result 24 states and 25 transitions. Complement of second has 10 states. [2019-12-07 10:10:01,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2019-12-07 10:10:01,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-07 10:10:01,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2019-12-07 10:10:01,760 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 7 transitions. Stem has 9 letters. Loop has 6 letters. [2019-12-07 10:10:01,760 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:10:01,760 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 10:10:01,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:10:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:10:01,785 INFO L264 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-07 10:10:01,786 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:10:01,791 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:10:01,791 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 27 [2019-12-07 10:10:01,792 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 10:10:01,796 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:10:01,796 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 10:10:01,796 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:14 [2019-12-07 10:10:01,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:10:01,811 INFO L264 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 10:10:01,811 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:10:01,812 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 10:10:01,867 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 10:10:01,867 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 58 [2019-12-07 10:10:01,868 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 10:10:01,891 INFO L614 ElimStorePlain]: treesize reduction 18, result has 73.1 percent of original size [2019-12-07 10:10:01,892 INFO L534 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-12-07 10:10:01,892 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:108, output treesize:42 [2019-12-07 10:10:01,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:10:01,916 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2019-12-07 10:10:01,916 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 16 transitions. cyclomatic complexity: 3 Second operand 7 states. [2019-12-07 10:10:01,965 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 16 transitions. cyclomatic complexity: 3. Second operand 7 states. Result 26 states and 28 transitions. Complement of second has 11 states. [2019-12-07 10:10:01,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2019-12-07 10:10:01,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-07 10:10:01,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 17 transitions. [2019-12-07 10:10:01,966 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 9 letters. Loop has 6 letters. [2019-12-07 10:10:01,966 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:10:01,966 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 15 letters. Loop has 6 letters. [2019-12-07 10:10:01,967 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:10:01,967 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 9 letters. Loop has 12 letters. [2019-12-07 10:10:01,968 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:10:01,968 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 28 transitions. [2019-12-07 10:10:01,968 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 10:10:01,968 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 0 states and 0 transitions. [2019-12-07 10:10:01,969 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 10:10:01,969 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 10:10:01,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 10:10:01,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 10:10:01,969 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:10:01,969 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:10:01,969 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:10:01,969 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-12-07 10:10:01,969 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 10:10:01,969 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 10:10:01,969 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 10:10:01,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 10:10:01 BoogieIcfgContainer [2019-12-07 10:10:01,973 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 10:10:01,973 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:10:01,973 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:10:01,974 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:10:01,974 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:09:52" (3/4) ... [2019-12-07 10:10:01,977 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 10:10:01,977 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:10:01,978 INFO L168 Benchmark]: Toolchain (without parser) took 10077.86 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 263.7 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -188.4 MB). Peak memory consumption was 75.3 MB. Max. memory is 11.5 GB. [2019-12-07 10:10:01,978 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:10:01,978 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 73.4 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -116.1 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2019-12-07 10:10:01,979 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.44 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. [2019-12-07 10:10:01,979 INFO L168 Benchmark]: Boogie Preprocessor took 16.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2019-12-07 10:10:01,979 INFO L168 Benchmark]: RCFGBuilder took 204.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2019-12-07 10:10:01,980 INFO L168 Benchmark]: BuchiAutomizer took 9533.47 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 190.3 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -97.7 MB). Peak memory consumption was 92.6 MB. Max. memory is 11.5 GB. [2019-12-07 10:10:01,980 INFO L168 Benchmark]: Witness Printer took 3.45 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:10:01,982 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 288.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 73.4 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -116.1 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.44 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 204.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 9533.47 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 190.3 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -97.7 MB). Peak memory consumption was 92.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.45 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (3 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[x][x] + unknown-#memory_int-unknown[z][z] + unknown-#memory_int-unknown[y][y] and consists of 6 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[z][z] and consists of 6 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[z][z] and consists of 6 locations. 3 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.5s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 8.2s. Construction of modules took 0.1s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 20 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 47 SDtfs, 51 SDslu, 48 SDs, 0 SdLazy, 144 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU2 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital1016 mio100 ax103 hnf99 lsp64 ukn54 mio100 lsp30 div100 bol104 ite100 ukn100 eq174 hnf88 smp97 dnf214 smp66 tf100 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 86ms VariablesStem: 7 VariablesLoop: 10 DisjunctsStem: 2 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 20 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...