./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex3.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/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 a96be28be4b50f026536d78db5ba85eeb0ae4413 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 04:20:49,774 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 04:20:49,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 04:20:49,793 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 04:20:49,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 04:20:49,795 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 04:20:49,797 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 04:20:49,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 04:20:49,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 04:20:49,815 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 04:20:49,816 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 04:20:49,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 04:20:49,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 04:20:49,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 04:20:49,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 04:20:49,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 04:20:49,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 04:20:49,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 04:20:49,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 04:20:49,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 04:20:49,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 04:20:49,833 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 04:20:49,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 04:20:49,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 04:20:49,841 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 04:20:49,841 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 04:20:49,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 04:20:49,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 04:20:49,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 04:20:49,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 04:20:49,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 04:20:49,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 04:20:49,847 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 04:20:49,848 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 04:20:49,849 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 04:20:49,849 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 04:20:49,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 04:20:49,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 04:20:49,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 04:20:49,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 04:20:49,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 04:20:49,853 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-20 04:20:49,883 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 04:20:49,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 04:20:49,884 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 04:20:49,884 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 04:20:49,884 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 04:20:49,885 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 04:20:49,885 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 04:20:49,885 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 04:20:49,885 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 04:20:49,885 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 04:20:49,886 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 04:20:49,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 04:20:49,886 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 04:20:49,886 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 04:20:49,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 04:20:49,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 04:20:49,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 04:20:49,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 04:20:49,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 04:20:49,887 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 04:20:49,888 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 04:20:49,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 04:20:49,888 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 04:20:49,888 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 04:20:49,888 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 04:20:49,889 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 04:20:49,889 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 04:20:49,889 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 04:20:49,890 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 04:20:49,890 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_8739aeba-52b3-45d4-9ec0-47515f049a61/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 -> a96be28be4b50f026536d78db5ba85eeb0ae4413 [2019-11-20 04:20:50,091 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 04:20:50,108 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 04:20:50,111 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 04:20:50,113 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 04:20:50,114 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 04:20:50,115 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex3.i [2019-11-20 04:20:50,181 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/data/41158217d/81fbffcc0a96407da645ec6f708bb761/FLAGaec149c11 [2019-11-20 04:20:50,633 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 04:20:50,634 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex3.i [2019-11-20 04:20:50,640 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/data/41158217d/81fbffcc0a96407da645ec6f708bb761/FLAGaec149c11 [2019-11-20 04:20:50,979 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/data/41158217d/81fbffcc0a96407da645ec6f708bb761 [2019-11-20 04:20:50,982 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 04:20:50,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 04:20:50,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 04:20:50,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 04:20:50,988 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 04:20:50,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:20:50" (1/1) ... [2019-11-20 04:20:50,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c0b7031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:20:50, skipping insertion in model container [2019-11-20 04:20:50,991 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:20:50" (1/1) ... [2019-11-20 04:20:50,999 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 04:20:51,015 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 04:20:51,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:20:51,225 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 04:20:51,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:20:51,266 INFO L192 MainTranslator]: Completed translation [2019-11-20 04:20:51,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:20:51 WrapperNode [2019-11-20 04:20:51,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 04:20:51,267 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 04:20:51,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 04:20:51,268 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 04:20:51,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:20:51" (1/1) ... [2019-11-20 04:20:51,287 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:20:51" (1/1) ... [2019-11-20 04:20:51,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 04:20:51,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 04:20:51,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 04:20:51,306 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 04:20:51,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:20:51" (1/1) ... [2019-11-20 04:20:51,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:20:51" (1/1) ... [2019-11-20 04:20:51,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:20:51" (1/1) ... [2019-11-20 04:20:51,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:20:51" (1/1) ... [2019-11-20 04:20:51,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:20:51" (1/1) ... [2019-11-20 04:20:51,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:20:51" (1/1) ... [2019-11-20 04:20:51,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:20:51" (1/1) ... [2019-11-20 04:20:51,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 04:20:51,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 04:20:51,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 04:20:51,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 04:20:51,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:20:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:51,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 04:20:51,412 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2019-11-20 04:20:51,413 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2019-11-20 04:20:51,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 04:20:51,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 04:20:51,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 04:20:51,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 04:20:51,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 04:20:51,757 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 04:20:51,757 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 04:20:51,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:20:51 BoogieIcfgContainer [2019-11-20 04:20:51,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 04:20:51,759 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 04:20:51,759 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 04:20:51,762 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 04:20:51,763 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 04:20:51,763 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 04:20:50" (1/3) ... [2019-11-20 04:20:51,764 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f62665c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 04:20:51, skipping insertion in model container [2019-11-20 04:20:51,765 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 04:20:51,765 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:20:51" (2/3) ... [2019-11-20 04:20:51,765 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f62665c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 04:20:51, skipping insertion in model container [2019-11-20 04:20:51,765 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 04:20:51,766 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:20:51" (3/3) ... [2019-11-20 04:20:51,767 INFO L371 chiAutomizerObserver]: Analyzing ICFG rec_malloc_ex3.i [2019-11-20 04:20:51,840 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 04:20:51,840 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 04:20:51,841 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 04:20:51,841 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 04:20:51,841 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 04:20:51,842 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 04:20:51,842 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 04:20:51,842 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 04:20:51,856 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-20 04:20:51,882 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-20 04:20:51,883 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 04:20:51,883 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 04:20:51,891 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 04:20:51,891 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:20:51,891 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 04:20:51,891 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-20 04:20:51,893 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-20 04:20:51,893 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 04:20:51,894 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 04:20:51,894 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 04:20:51,894 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:20:51,900 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~ret9, main_~op~0.base, main_~op~0.offset, main_~i~0;main_~i~0 := main_#t~nondet6;havoc main_#t~nondet6; 5#L20-2true [2019-11-20 04:20:51,901 INFO L796 eck$LassoCheckResult]: Loop: 5#L20-2true assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 13#L23true call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 4#recENTRYtrue ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 9#L9true assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 15#recFINALtrue assume true; 12#recEXITtrue >#30#return; 11#L23-1true main_~i~0 := main_~i~0 + main_#t~ret9;havoc main_#t~ret9; 5#L20-2true [2019-11-20 04:20:51,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:20:51,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 1 times [2019-11-20 04:20:51,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:20:51,913 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232709842] [2019-11-20 04:20:51,913 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:20:51,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:20:51,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:20:52,014 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:20:52,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:20:52,015 INFO L82 PathProgramCache]: Analyzing trace with hash -2039113776, now seen corresponding path program 1 times [2019-11-20 04:20:52,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:20:52,016 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514153055] [2019-11-20 04:20:52,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:20:52,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:20:52,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:20:52,079 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:20:52,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:20:52,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1009969970, now seen corresponding path program 1 times [2019-11-20 04:20:52,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:20:52,081 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110906640] [2019-11-20 04:20:52,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:20:52,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:20:52,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:20:52,129 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:20:52,668 WARN L191 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2019-11-20 04:20:52,769 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 04:20:52,769 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 04:20:52,769 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 04:20:52,769 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 04:20:52,770 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 04:20:52,770 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:52,770 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 04:20:52,770 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 04:20:52,770 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex3.i_Iteration1_Lasso [2019-11-20 04:20:52,770 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 04:20:52,770 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 04:20:52,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:52,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:52,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:52,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:52,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:52,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:52,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:53,145 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 04:20:53,150 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:20:53,167 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:53,169 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:53,169 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:53,170 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:53,170 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:53,170 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:53,173 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:53,173 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:20:53,175 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:20:53,195 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:53,197 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:53,197 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:53,198 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:53,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:53,198 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:53,199 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:53,199 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:53,204 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:20:53,223 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:53,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:53,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:53,225 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:53,225 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:53,231 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:20:53,231 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:53,240 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:20:53,255 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:53,257 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:53,258 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:53,258 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:53,258 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:53,258 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:53,261 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:53,261 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:53,265 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:20:53,281 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:53,283 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:53,284 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:53,284 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:53,284 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:53,284 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:53,287 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:53,287 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:53,290 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:20:53,305 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:53,308 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:53,308 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:53,308 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-20 04:20:53,308 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:53,335 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-11-20 04:20:53,336 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-20 04:20:53,358 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:20:53,375 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:53,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:53,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:53,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:53,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:53,382 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:20:53,382 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:53,388 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:20:53,408 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:53,410 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:53,410 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:53,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:53,411 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:53,411 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:53,415 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:53,416 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:53,420 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 04:20:53,447 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 04:20:53,448 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:20:53,462 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 04:20:53,462 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 04:20:53,462 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 04:20:53,463 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-11-20 04:20:53,469 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:53,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:20:53,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:20:53,507 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 04:20:53,508 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:20:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:20:53,544 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 04:20:53,546 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:20:53,644 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 17 treesize of output 9 [2019-11-20 04:20:53,647 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:20:53,653 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:20:53,653 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:20:53,654 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:9 [2019-11-20 04:20:53,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:20:53,720 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2019-11-20 04:20:53,722 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 7 states. [2019-11-20 04:20:53,851 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 7 states. Result 63 states and 77 transitions. Complement of second has 22 states. [2019-11-20 04:20:53,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2019-11-20 04:20:53,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-20 04:20:53,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 22 transitions. [2019-11-20 04:20:53,856 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 22 transitions. Stem has 2 letters. Loop has 7 letters. [2019-11-20 04:20:53,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:20:53,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 22 transitions. Stem has 9 letters. Loop has 7 letters. [2019-11-20 04:20:53,859 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:20:53,859 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 22 transitions. Stem has 2 letters. Loop has 14 letters. [2019-11-20 04:20:53,859 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:20:53,860 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 77 transitions. [2019-11-20 04:20:53,872 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-11-20 04:20:53,893 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 35 states and 42 transitions. [2019-11-20 04:20:53,896 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2019-11-20 04:20:53,897 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2019-11-20 04:20:53,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 42 transitions. [2019-11-20 04:20:53,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 04:20:53,898 INFO L688 BuchiCegarLoop]: Abstraction has 35 states and 42 transitions. [2019-11-20 04:20:53,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 42 transitions. [2019-11-20 04:20:53,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 32. [2019-11-20 04:20:53,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-20 04:20:53,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2019-11-20 04:20:53,937 INFO L711 BuchiCegarLoop]: Abstraction has 32 states and 38 transitions. [2019-11-20 04:20:53,937 INFO L591 BuchiCegarLoop]: Abstraction has 32 states and 38 transitions. [2019-11-20 04:20:53,937 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 04:20:53,938 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 38 transitions. [2019-11-20 04:20:53,942 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-11-20 04:20:53,942 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 04:20:53,942 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 04:20:53,943 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:20:53,943 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 04:20:53,943 INFO L794 eck$LassoCheckResult]: Stem: 166#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 161#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~ret9, main_~op~0.base, main_~op~0.offset, main_~i~0;main_~i~0 := main_#t~nondet6;havoc main_#t~nondet6; 162#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 174#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 175#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 185#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~post4;havoc #t~mem3; 156#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 164#recENTRY [2019-11-20 04:20:53,944 INFO L796 eck$LassoCheckResult]: Loop: 164#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 154#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~post4;havoc #t~mem3; 155#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 164#recENTRY [2019-11-20 04:20:53,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:20:53,944 INFO L82 PathProgramCache]: Analyzing trace with hash 557607690, now seen corresponding path program 1 times [2019-11-20 04:20:53,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:20:53,946 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321907841] [2019-11-20 04:20:53,946 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:20:53,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:20:54,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:20:54,005 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:20:54,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:20:54,006 INFO L82 PathProgramCache]: Analyzing trace with hash 29942, now seen corresponding path program 1 times [2019-11-20 04:20:54,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:20:54,006 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282439957] [2019-11-20 04:20:54,006 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:20:54,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:20:54,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:20:54,019 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:20:54,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:20:54,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1242807987, now seen corresponding path program 2 times [2019-11-20 04:20:54,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:20:54,021 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654711822] [2019-11-20 04:20:54,021 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:20:54,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:20:54,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:20:54,064 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:20:54,543 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2019-11-20 04:20:54,770 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-11-20 04:20:54,810 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 04:20:54,810 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 04:20:54,810 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 04:20:54,810 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 04:20:54,810 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 04:20:54,810 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:54,811 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 04:20:54,811 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 04:20:54,811 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex3.i_Iteration2_Lasso [2019-11-20 04:20:54,811 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 04:20:54,811 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 04:20:54,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:54,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:54,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:54,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:54,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:54,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:54,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:54,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:54,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:54,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:54,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:54,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:54,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:54,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:54,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:54,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:54,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:54,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:54,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:54,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:54,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:54,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:54,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:54,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:54,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:55,234 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 04:20:55,235 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/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 [2019-11-20 04:20:55,251 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:55,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:55,253 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:55,254 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:55,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:55,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:55,256 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:55,256 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:20:55,257 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/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 [2019-11-20 04:20:55,271 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:55,273 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:55,273 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:55,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:55,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:55,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:55,274 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:55,274 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:20:55,276 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:20:55,294 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:55,296 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:55,296 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:55,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:55,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:55,297 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:55,297 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:55,297 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:55,299 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:55,310 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:55,313 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:55,313 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:55,313 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:55,313 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:55,314 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:55,314 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:55,314 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:20:55,318 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:55,323 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:55,333 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:55,333 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:55,333 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:55,334 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:55,337 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:20:55,337 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:20:55,350 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:55,374 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:55,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:55,377 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:55,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:55,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:55,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:55,380 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:55,380 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:20:55,381 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:55,399 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:55,400 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:55,400 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:55,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:55,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:55,401 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:55,401 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:55,401 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:20:55,403 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/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) [2019-11-20 04:20:55,419 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:55,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:55,421 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:55,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:55,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:55,422 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:55,422 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:55,422 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:55,424 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/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) [2019-11-20 04:20:55,443 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:55,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:55,445 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:55,445 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:55,445 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:55,445 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:55,446 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:55,446 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:55,448 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:55,462 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:55,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:55,464 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:55,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:55,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:55,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:55,465 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:55,466 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:20:55,467 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/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 [2019-11-20 04:20:55,483 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:55,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:55,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:55,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:55,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:55,488 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:20:55,488 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:20:55,492 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/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) [2019-11-20 04:20:55,502 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:55,503 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:55,503 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:55,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:55,504 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:55,504 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:55,505 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:55,505 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:55,507 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:20:55,512 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:55,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:55,514 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:55,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:55,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:55,515 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:55,515 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:55,515 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:55,520 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/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) [2019-11-20 04:20:55,532 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:55,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:55,536 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:55,536 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:55,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:55,536 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:55,537 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:55,537 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:55,539 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/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) [2019-11-20 04:20:55,554 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:55,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:55,556 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:55,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:55,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:55,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:55,557 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:55,557 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:55,560 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/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) [2019-11-20 04:20:55,570 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:55,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:55,572 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:55,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:55,572 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:55,572 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:55,573 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:55,573 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:20:55,575 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/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 [2019-11-20 04:20:55,580 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:55,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:55,581 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:55,581 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:55,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:55,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:55,582 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:55,582 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:20:55,584 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/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) [2019-11-20 04:20:55,590 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:55,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:55,592 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:55,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:55,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:55,592 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:55,593 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:55,593 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:55,595 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/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) [2019-11-20 04:20:55,606 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:55,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:55,608 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:55,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:55,608 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:55,608 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:55,609 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:55,609 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:55,611 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/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) [2019-11-20 04:20:55,617 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:55,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:55,619 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:55,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:55,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:55,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:55,620 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:55,620 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:55,622 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/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) [2019-11-20 04:20:55,631 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:55,633 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:55,633 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:55,633 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:55,633 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:55,634 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:55,634 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:55,634 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:55,636 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/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) [2019-11-20 04:20:55,642 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:55,644 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:55,644 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:55,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:55,645 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:55,645 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:55,645 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:55,646 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:55,647 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/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) [2019-11-20 04:20:55,653 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:55,655 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:55,655 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:55,655 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:55,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:55,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:55,656 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:55,656 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:55,658 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/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) [2019-11-20 04:20:55,664 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:55,666 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:55,666 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:55,666 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:55,666 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:55,670 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:20:55,671 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:55,676 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/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 [2019-11-20 04:20:55,682 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:55,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:55,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:55,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:55,684 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:55,690 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:20:55,690 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:20:55,698 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/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 [2019-11-20 04:20:55,705 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:55,706 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:55,706 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2019-11-20 04:20:55,706 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:55,706 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:55,711 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-11-20 04:20:55,711 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:20:55,718 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/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) [2019-11-20 04:20:55,735 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:55,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:55,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:55,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:55,738 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:55,742 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:20:55,742 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:55,750 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 04:20:55,779 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-20 04:20:55,779 INFO L444 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/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) [2019-11-20 04:20:55,790 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:55,809 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 04:20:55,810 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 04:20:55,810 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int rec_#in~p.base) rec_#in~p.offset)_1) = 2*v_rep(select (select #memory_int rec_#in~p.base) rec_#in~p.offset)_1 + 1 Supporting invariants [] [2019-11-20 04:20:55,815 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2019-11-20 04:20:55,819 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-20 04:20:55,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:20:55,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:20:55,867 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 04:20:55,868 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:20:55,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:20:55,883 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-20 04:20:55,884 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:20:55,926 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 0 case distinctions, treesize of input 36 treesize of output 20 [2019-11-20 04:20:55,927 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:20:55,932 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:20:55,932 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:20:55,933 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:21 [2019-11-20 04:20:55,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:20:55,943 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 [2019-11-20 04:20:55,943 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 38 transitions. cyclomatic complexity: 10 Second operand 4 states. [2019-11-20 04:20:56,009 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 38 transitions. cyclomatic complexity: 10. Second operand 4 states. Result 47 states and 56 transitions. Complement of second has 17 states. [2019-11-20 04:20:56,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-20 04:20:56,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 04:20:56,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2019-11-20 04:20:56,011 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 7 letters. Loop has 3 letters. [2019-11-20 04:20:56,012 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:20:56,012 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 10 letters. Loop has 3 letters. [2019-11-20 04:20:56,012 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:20:56,012 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 7 letters. Loop has 6 letters. [2019-11-20 04:20:56,012 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:20:56,012 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 56 transitions. [2019-11-20 04:20:56,015 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-20 04:20:56,017 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 41 states and 50 transitions. [2019-11-20 04:20:56,017 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2019-11-20 04:20:56,017 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2019-11-20 04:20:56,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 50 transitions. [2019-11-20 04:20:56,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 04:20:56,017 INFO L688 BuchiCegarLoop]: Abstraction has 41 states and 50 transitions. [2019-11-20 04:20:56,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 50 transitions. [2019-11-20 04:20:56,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2019-11-20 04:20:56,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-20 04:20:56,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2019-11-20 04:20:56,024 INFO L711 BuchiCegarLoop]: Abstraction has 39 states and 46 transitions. [2019-11-20 04:20:56,024 INFO L591 BuchiCegarLoop]: Abstraction has 39 states and 46 transitions. [2019-11-20 04:20:56,024 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 04:20:56,024 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 46 transitions. [2019-11-20 04:20:56,026 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-20 04:20:56,026 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 04:20:56,026 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 04:20:56,027 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:20:56,027 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:20:56,028 INFO L794 eck$LassoCheckResult]: Stem: 317#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 310#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~ret9, main_~op~0.base, main_~op~0.offset, main_~i~0;main_~i~0 := main_#t~nondet6;havoc main_#t~nondet6; 311#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 329#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 339#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 338#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~post4;havoc #t~mem3; 309#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 314#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 315#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 343#recFINAL assume true; 322#recEXIT >#28#return; 323#L15-1 #res := #t~ret5;havoc #t~ret5; 337#recFINAL assume true; 332#recEXIT >#30#return; 318#L23-1 [2019-11-20 04:20:56,028 INFO L796 eck$LassoCheckResult]: Loop: 318#L23-1 main_~i~0 := main_~i~0 + main_#t~ret9;havoc main_#t~ret9; 319#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 326#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 327#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 334#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 336#recFINAL assume true; 341#recEXIT >#30#return; 318#L23-1 [2019-11-20 04:20:56,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:20:56,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1969157627, now seen corresponding path program 1 times [2019-11-20 04:20:56,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:20:56,029 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543920229] [2019-11-20 04:20:56,029 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:20:56,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:20:56,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:20:56,067 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:20:56,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:20:56,068 INFO L82 PathProgramCache]: Analyzing trace with hash -523709736, now seen corresponding path program 2 times [2019-11-20 04:20:56,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:20:56,068 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284540226] [2019-11-20 04:20:56,068 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:20:56,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:20:56,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:20:56,089 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:20:56,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:20:56,090 INFO L82 PathProgramCache]: Analyzing trace with hash 931270558, now seen corresponding path program 1 times [2019-11-20 04:20:56,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:20:56,090 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364388828] [2019-11-20 04:20:56,090 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:20:56,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:20:56,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:20:56,137 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:20:56,403 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-11-20 04:20:56,730 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-11-20 04:20:57,025 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2019-11-20 04:20:57,081 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 04:20:57,081 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 04:20:57,081 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 04:20:57,081 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 04:20:57,081 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 04:20:57,081 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:57,081 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 04:20:57,082 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 04:20:57,082 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex3.i_Iteration3_Lasso [2019-11-20 04:20:57,082 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 04:20:57,082 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 04:20:57,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:57,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:57,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:57,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:57,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:57,519 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 04:20:57,519 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/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 [2019-11-20 04:20:57,529 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:57,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:57,531 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2019-11-20 04:20:57,531 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-20 04:20:57,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:57,541 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2019-11-20 04:20:57,541 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-20 04:20:57,556 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/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 [2019-11-20 04:20:57,563 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:57,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:57,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:57,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:57,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:57,568 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:20:57,569 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:20:57,578 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/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) [2019-11-20 04:20:57,586 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:57,588 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:57,588 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:57,588 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:57,588 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:57,590 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:20:57,590 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:57,593 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/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) [2019-11-20 04:20:57,598 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:57,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:57,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:57,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:57,600 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:57,604 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:20:57,604 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:20:57,614 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/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) [2019-11-20 04:20:57,626 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 [2019-11-20 04:20:57,628 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:57,628 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:57,628 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:57,629 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:57,632 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:20:57,632 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:57,638 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:20:57,647 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:57,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:57,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:57,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:57,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:57,654 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:20:57,655 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:57,664 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 04:20:57,676 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-11-20 04:20:57,676 INFO L444 ModelExtractionUtils]: 10 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_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:20:57,683 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:57,685 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 04:20:57,686 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 04:20:57,686 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_#t~ret9, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_#t~ret9 + 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-11-20 04:20:57,694 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-11-20 04:20:57,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:20:57,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:20:57,754 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 04:20:57,755 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:20:57,775 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:20:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:20:57,798 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 04:20:57,799 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:20:57,868 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 17 treesize of output 9 [2019-11-20 04:20:57,868 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:20:57,873 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:20:57,873 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:20:57,874 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:9 [2019-11-20 04:20:57,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:20:57,894 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 6 loop predicates [2019-11-20 04:20:57,894 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 46 transitions. cyclomatic complexity: 11 Second operand 8 states. [2019-11-20 04:20:58,031 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 46 transitions. cyclomatic complexity: 11. Second operand 8 states. Result 130 states and 152 transitions. Complement of second has 21 states. [2019-11-20 04:20:58,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 5 non-accepting loop states 1 accepting loop states [2019-11-20 04:20:58,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-20 04:20:58,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 26 transitions. [2019-11-20 04:20:58,034 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 26 transitions. Stem has 14 letters. Loop has 7 letters. [2019-11-20 04:20:58,034 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:20:58,034 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 26 transitions. Stem has 21 letters. Loop has 7 letters. [2019-11-20 04:20:58,034 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:20:58,035 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 26 transitions. Stem has 14 letters. Loop has 14 letters. [2019-11-20 04:20:58,035 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:20:58,035 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 130 states and 152 transitions. [2019-11-20 04:20:58,039 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-11-20 04:20:58,042 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 130 states to 90 states and 105 transitions. [2019-11-20 04:20:58,042 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 63 [2019-11-20 04:20:58,043 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2019-11-20 04:20:58,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 105 transitions. [2019-11-20 04:20:58,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 04:20:58,043 INFO L688 BuchiCegarLoop]: Abstraction has 90 states and 105 transitions. [2019-11-20 04:20:58,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 105 transitions. [2019-11-20 04:20:58,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 82. [2019-11-20 04:20:58,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-11-20 04:20:58,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 96 transitions. [2019-11-20 04:20:58,053 INFO L711 BuchiCegarLoop]: Abstraction has 82 states and 96 transitions. [2019-11-20 04:20:58,053 INFO L591 BuchiCegarLoop]: Abstraction has 82 states and 96 transitions. [2019-11-20 04:20:58,053 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 04:20:58,053 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 82 states and 96 transitions. [2019-11-20 04:20:58,055 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-11-20 04:20:58,055 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 04:20:58,055 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 04:20:58,056 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:20:58,056 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 04:20:58,057 INFO L794 eck$LassoCheckResult]: Stem: 613#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 603#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~ret9, main_~op~0.base, main_~op~0.offset, main_~i~0;main_~i~0 := main_#t~nondet6;havoc main_#t~nondet6; 604#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 633#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 634#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 639#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~post4;havoc #t~mem3; 629#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 638#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 644#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 641#recFINAL assume true; 637#recEXIT >#28#return; 636#L15-1 #res := #t~ret5;havoc #t~ret5; 635#recFINAL assume true; 632#recEXIT >#30#return; 631#L23-1 main_~i~0 := main_~i~0 + main_#t~ret9;havoc main_#t~ret9; 618#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 622#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 623#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 673#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~post4;havoc #t~mem3; 609#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 608#recENTRY [2019-11-20 04:20:58,057 INFO L796 eck$LassoCheckResult]: Loop: 608#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 611#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~post4;havoc #t~mem3; 610#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 608#recENTRY [2019-11-20 04:20:58,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:20:58,057 INFO L82 PathProgramCache]: Analyzing trace with hash -801242957, now seen corresponding path program 2 times [2019-11-20 04:20:58,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:20:58,058 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494301894] [2019-11-20 04:20:58,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:20:58,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:20:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:20:58,120 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:20:58,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:20:58,120 INFO L82 PathProgramCache]: Analyzing trace with hash 29942, now seen corresponding path program 2 times [2019-11-20 04:20:58,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:20:58,121 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228858414] [2019-11-20 04:20:58,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:20:58,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:20:58,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:20:58,129 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:20:58,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:20:58,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1599299332, now seen corresponding path program 3 times [2019-11-20 04:20:58,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:20:58,130 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433429283] [2019-11-20 04:20:58,130 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:20:58,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:20:58,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:20:58,176 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:20:59,053 WARN L191 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 116 [2019-11-20 04:20:59,422 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2019-11-20 04:20:59,489 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 04:20:59,489 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 04:20:59,489 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 04:20:59,489 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 04:20:59,489 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 04:20:59,489 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:59,489 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 04:20:59,489 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 04:20:59,490 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex3.i_Iteration4_Lasso [2019-11-20 04:20:59,490 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 04:20:59,490 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 04:20:59,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:59,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:59,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:59,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:59,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:59,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:59,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:59,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:59,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:59,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:59,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:59,615 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:59,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:59,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:59,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:59,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:59,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:59,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:59,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:59,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:59,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:59,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:59,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:59,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:59,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:20:59,879 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 04:20:59,879 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 46 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:59,889 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:59,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:59,890 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:59,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:59,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:59,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:59,891 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:59,891 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:20:59,892 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 47 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:59,901 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:59,903 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:59,904 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:59,904 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:59,904 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:59,904 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:59,905 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:59,905 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:20:59,906 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 48 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:59,910 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:59,911 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:59,912 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:59,912 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:59,912 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:59,912 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:59,912 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:59,912 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:20:59,913 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 49 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:59,918 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:59,919 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:59,919 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:20:59,920 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:59,920 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:59,920 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:59,920 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:20:59,920 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:20:59,921 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 50 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:59,927 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:59,928 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:59,928 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:59,928 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:59,929 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:59,930 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:20:59,930 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:20:59,933 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 51 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:59,937 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:59,939 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:59,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:59,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:59,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:59,942 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:20:59,942 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:20:59,949 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:20:59,959 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:59,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:59,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:59,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:59,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:59,962 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:20:59,962 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:59,966 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:20:59,974 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:20:59,976 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:20:59,976 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:20:59,976 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:20:59,976 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:20:59,980 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:20:59,980 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:20:59,988 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 04:21:00,001 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-11-20 04:21:00,001 INFO L444 ModelExtractionUtils]: 0 out of 10 variables were initially zero. Simplification set additionally 7 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 54 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:21:00,005 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 04:21:00,007 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 04:21:00,007 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 04:21:00,007 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int rec_#in~p.base) rec_#in~p.offset)_2) = 2*v_rep(select (select #memory_int rec_#in~p.base) rec_#in~p.offset)_2 + 1 Supporting invariants [] [2019-11-20 04:21:00,011 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2019-11-20 04:21:00,012 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-20 04:21:00,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:21:00,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:21:00,065 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 04:21:00,067 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:21:00,083 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:21:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:21:00,096 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-20 04:21:00,097 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:21:00,117 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 0 case distinctions, treesize of input 36 treesize of output 20 [2019-11-20 04:21:00,118 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:21:00,122 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:21:00,123 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:21:00,123 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:21 [2019-11-20 04:21:00,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:21:00,134 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2019-11-20 04:21:00,134 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 82 states and 96 transitions. cyclomatic complexity: 21 Second operand 5 states. [2019-11-20 04:21:00,214 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 82 states and 96 transitions. cyclomatic complexity: 21. Second operand 5 states. Result 106 states and 124 transitions. Complement of second has 17 states. [2019-11-20 04:21:00,215 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 [2019-11-20 04:21:00,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-20 04:21:00,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 16 transitions. [2019-11-20 04:21:00,216 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 20 letters. Loop has 3 letters. [2019-11-20 04:21:00,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:21:00,216 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 04:21:00,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:21:00,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:21:00,261 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 04:21:00,263 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:21:00,277 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:21:00,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:21:00,291 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-20 04:21:00,291 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:21:00,312 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 0 case distinctions, treesize of input 36 treesize of output 20 [2019-11-20 04:21:00,313 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:21:00,319 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:21:00,320 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:21:00,320 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:21 [2019-11-20 04:21:00,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:21:00,330 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 3 loop predicates [2019-11-20 04:21:00,331 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 82 states and 96 transitions. cyclomatic complexity: 21 Second operand 5 states. [2019-11-20 04:21:00,413 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 82 states and 96 transitions. cyclomatic complexity: 21. Second operand 5 states. Result 106 states and 124 transitions. Complement of second has 17 states. [2019-11-20 04:21:00,414 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 [2019-11-20 04:21:00,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-20 04:21:00,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 16 transitions. [2019-11-20 04:21:00,415 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 20 letters. Loop has 3 letters. [2019-11-20 04:21:00,415 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:21:00,415 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 04:21:00,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:21:00,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:21:00,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 04:21:00,460 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:21:00,480 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:21:00,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:21:00,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-20 04:21:00,492 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:21:00,507 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 0 case distinctions, treesize of input 36 treesize of output 20 [2019-11-20 04:21:00,508 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:21:00,512 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:21:00,512 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:21:00,513 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:21 [2019-11-20 04:21:00,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:21:00,524 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 3 loop predicates [2019-11-20 04:21:00,524 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 82 states and 96 transitions. cyclomatic complexity: 21 Second operand 5 states. [2019-11-20 04:21:00,608 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 82 states and 96 transitions. cyclomatic complexity: 21. Second operand 5 states. Result 154 states and 179 transitions. Complement of second has 19 states. [2019-11-20 04:21:00,609 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 [2019-11-20 04:21:00,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-20 04:21:00,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2019-11-20 04:21:00,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 20 letters. Loop has 3 letters. [2019-11-20 04:21:00,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:21:00,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 23 letters. Loop has 3 letters. [2019-11-20 04:21:00,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:21:00,611 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 20 letters. Loop has 6 letters. [2019-11-20 04:21:00,611 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:21:00,611 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 154 states and 179 transitions. [2019-11-20 04:21:00,615 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 04:21:00,619 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 154 states to 110 states and 135 transitions. [2019-11-20 04:21:00,619 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2019-11-20 04:21:00,620 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 76 [2019-11-20 04:21:00,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 110 states and 135 transitions. [2019-11-20 04:21:00,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 04:21:00,620 INFO L688 BuchiCegarLoop]: Abstraction has 110 states and 135 transitions. [2019-11-20 04:21:00,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states and 135 transitions. [2019-11-20 04:21:00,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 74. [2019-11-20 04:21:00,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-11-20 04:21:00,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 87 transitions. [2019-11-20 04:21:00,631 INFO L711 BuchiCegarLoop]: Abstraction has 74 states and 87 transitions. [2019-11-20 04:21:00,631 INFO L591 BuchiCegarLoop]: Abstraction has 74 states and 87 transitions. [2019-11-20 04:21:00,631 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-20 04:21:00,631 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states and 87 transitions. [2019-11-20 04:21:00,633 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 04:21:00,633 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 04:21:00,634 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 04:21:00,634 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:21:00,635 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:21:00,635 INFO L794 eck$LassoCheckResult]: Stem: 1363#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1356#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~ret9, main_~op~0.base, main_~op~0.offset, main_~i~0;main_~i~0 := main_#t~nondet6;havoc main_#t~nondet6; 1357#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 1371#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 1374#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 1378#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 1376#recFINAL assume true; 1370#recEXIT >#30#return; 1366#L23-1 main_~i~0 := main_~i~0 + main_#t~ret9;havoc main_#t~ret9; 1368#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 1372#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 1373#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 1400#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~post4;havoc #t~mem3; 1352#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 1360#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 1351#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 1353#recFINAL assume true; 1417#recEXIT >#28#return; 1406#L15-1 #res := #t~ret5;havoc #t~ret5; 1401#recFINAL assume true; 1377#recEXIT >#30#return; 1364#L23-1 [2019-11-20 04:21:00,635 INFO L796 eck$LassoCheckResult]: Loop: 1364#L23-1 main_~i~0 := main_~i~0 + main_#t~ret9;havoc main_#t~ret9; 1365#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 1403#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 1407#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 1402#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 1404#recFINAL assume true; 1408#recEXIT >#30#return; 1364#L23-1 [2019-11-20 04:21:00,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:21:00,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1572162950, now seen corresponding path program 4 times [2019-11-20 04:21:00,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:21:00,636 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416088412] [2019-11-20 04:21:00,636 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:21:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:21:00,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:21:00,696 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:21:00,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:21:00,696 INFO L82 PathProgramCache]: Analyzing trace with hash -523709736, now seen corresponding path program 3 times [2019-11-20 04:21:00,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:21:00,697 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249039246] [2019-11-20 04:21:00,697 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:21:00,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:21:00,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:21:00,728 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:21:00,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:21:00,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1341076915, now seen corresponding path program 5 times [2019-11-20 04:21:00,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:21:00,729 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226088410] [2019-11-20 04:21:00,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:21:00,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:21:00,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:21:00,772 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:21:01,007 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-11-20 04:21:01,956 WARN L191 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 134 [2019-11-20 04:21:02,066 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2019-11-20 04:21:02,068 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 04:21:02,068 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 04:21:02,068 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 04:21:02,068 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 04:21:02,068 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 04:21:02,068 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:21:02,068 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 04:21:02,068 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 04:21:02,068 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex3.i_Iteration5_Lasso [2019-11-20 04:21:02,068 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 04:21:02,068 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 04:21:02,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:21:02,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:21:02,327 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2019-11-20 04:21:02,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:21:02,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:21:02,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:21:02,629 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 04:21:02,629 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 55 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:21:02,632 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:21:02,633 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:21:02,633 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:21:02,633 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:21:02,634 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:21:02,635 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:21:02,635 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:21:02,637 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 56 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:21:02,641 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:21:02,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:21:02,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:21:02,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:21:02,643 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:21:02,643 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:21:02,644 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:21:02,646 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 57 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 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:21:02,650 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:21:02,651 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:21:02,652 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:21:02,652 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:21:02,652 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:21:02,655 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:21:02,655 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:21:02,662 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 04:21:02,673 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-11-20 04:21:02,674 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 7 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:21:02,677 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:21:02,680 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-20 04:21:02,680 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 04:21:02,680 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [-1*ULTIMATE.start_main_#t~ret9 - 1 >= 0] [2019-11-20 04:21:02,690 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2019-11-20 04:21:02,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:21:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:21:02,739 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-20 04:21:02,740 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:21:02,803 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 21 treesize of output 13 [2019-11-20 04:21:02,803 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:21:02,806 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 19 treesize of output 11 [2019-11-20 04:21:02,806 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 04:21:02,817 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:21:02,817 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-11-20 04:21:02,817 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:41, output treesize:19 [2019-11-20 04:21:02,837 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:21:02,858 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:21:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:21:02,872 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-20 04:21:02,872 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:21:02,932 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 17 treesize of output 9 [2019-11-20 04:21:02,932 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:21:02,938 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:21:02,938 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:21:02,938 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:9 [2019-11-20 04:21:02,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:21:02,953 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 6 loop predicates [2019-11-20 04:21:02,953 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 74 states and 87 transitions. cyclomatic complexity: 18 Second operand 11 states. [2019-11-20 04:21:03,179 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 74 states and 87 transitions. cyclomatic complexity: 18. Second operand 11 states. Result 117 states and 139 transitions. Complement of second has 28 states. [2019-11-20 04:21:03,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 5 stem states 5 non-accepting loop states 2 accepting loop states [2019-11-20 04:21:03,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-20 04:21:03,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 26 transitions. [2019-11-20 04:21:03,180 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 26 transitions. Stem has 21 letters. Loop has 7 letters. [2019-11-20 04:21:03,180 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:21:03,180 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 04:21:03,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:21:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:21:03,230 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-20 04:21:03,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:21:03,296 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 21 treesize of output 13 [2019-11-20 04:21:03,297 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:21:03,300 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 19 treesize of output 11 [2019-11-20 04:21:03,301 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 04:21:03,315 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:21:03,315 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-11-20 04:21:03,315 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:41, output treesize:19 [2019-11-20 04:21:03,345 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:21:03,368 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:21:03,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:21:03,387 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-20 04:21:03,387 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:21:03,466 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 17 treesize of output 9 [2019-11-20 04:21:03,467 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:21:03,471 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:21:03,472 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:21:03,472 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:9 [2019-11-20 04:21:03,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:21:03,497 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.5 stem predicates 6 loop predicates [2019-11-20 04:21:03,497 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 74 states and 87 transitions. cyclomatic complexity: 18 Second operand 11 states. [2019-11-20 04:21:03,769 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 74 states and 87 transitions. cyclomatic complexity: 18. Second operand 11 states. Result 118 states and 139 transitions. Complement of second has 28 states. [2019-11-20 04:21:03,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 5 stem states 5 non-accepting loop states 2 accepting loop states [2019-11-20 04:21:03,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-20 04:21:03,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 26 transitions. [2019-11-20 04:21:03,770 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 26 transitions. Stem has 21 letters. Loop has 7 letters. [2019-11-20 04:21:03,770 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:21:03,771 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 04:21:03,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:21:03,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:21:03,840 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-20 04:21:03,842 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:21:03,888 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 21 treesize of output 13 [2019-11-20 04:21:03,888 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:21:03,890 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 19 treesize of output 11 [2019-11-20 04:21:03,890 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 04:21:03,901 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:21:03,902 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-11-20 04:21:03,902 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:41, output treesize:19 [2019-11-20 04:21:03,922 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:21:03,950 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:21:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:21:03,964 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-20 04:21:03,964 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:21:04,023 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 17 treesize of output 9 [2019-11-20 04:21:04,024 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:21:04,028 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:21:04,028 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:21:04,029 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:9 [2019-11-20 04:21:04,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:21:04,051 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.5 stem predicates 6 loop predicates [2019-11-20 04:21:04,051 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 74 states and 87 transitions. cyclomatic complexity: 18 Second operand 11 states. [2019-11-20 04:21:04,287 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 74 states and 87 transitions. cyclomatic complexity: 18. Second operand 11 states. Result 143 states and 169 transitions. Complement of second has 35 states. [2019-11-20 04:21:04,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 5 stem states 5 non-accepting loop states 2 accepting loop states [2019-11-20 04:21:04,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-20 04:21:04,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 28 transitions. [2019-11-20 04:21:04,288 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 28 transitions. Stem has 21 letters. Loop has 7 letters. [2019-11-20 04:21:04,289 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:21:04,289 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 28 transitions. Stem has 28 letters. Loop has 7 letters. [2019-11-20 04:21:04,289 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:21:04,289 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 28 transitions. Stem has 21 letters. Loop has 14 letters. [2019-11-20 04:21:04,290 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:21:04,290 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 143 states and 169 transitions. [2019-11-20 04:21:04,294 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-20 04:21:04,297 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 143 states to 93 states and 108 transitions. [2019-11-20 04:21:04,297 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2019-11-20 04:21:04,297 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2019-11-20 04:21:04,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 108 transitions. [2019-11-20 04:21:04,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 04:21:04,298 INFO L688 BuchiCegarLoop]: Abstraction has 93 states and 108 transitions. [2019-11-20 04:21:04,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states and 108 transitions. [2019-11-20 04:21:04,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 79. [2019-11-20 04:21:04,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-11-20 04:21:04,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 92 transitions. [2019-11-20 04:21:04,305 INFO L711 BuchiCegarLoop]: Abstraction has 79 states and 92 transitions. [2019-11-20 04:21:04,305 INFO L591 BuchiCegarLoop]: Abstraction has 79 states and 92 transitions. [2019-11-20 04:21:04,305 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-20 04:21:04,305 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 79 states and 92 transitions. [2019-11-20 04:21:04,306 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-20 04:21:04,306 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 04:21:04,307 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 04:21:04,308 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:21:04,308 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:21:04,308 INFO L794 eck$LassoCheckResult]: Stem: 2277#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2267#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~ret9, main_~op~0.base, main_~op~0.offset, main_~i~0;main_~i~0 := main_#t~nondet6;havoc main_#t~nondet6; 2268#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 2265#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 2276#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 2264#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 2266#recFINAL assume true; 2283#recEXIT >#30#return; 2281#L23-1 main_~i~0 := main_~i~0 + main_#t~ret9;havoc main_#t~ret9; 2280#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 2262#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 2303#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 2261#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~post4;havoc #t~mem3; 2263#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 2287#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 2325#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 2315#recFINAL assume true; 2313#recEXIT >#28#return; 2310#L15-1 #res := #t~ret5;havoc #t~ret5; 2307#recFINAL assume true; 2302#recEXIT >#30#return; 2292#L23-1 [2019-11-20 04:21:04,308 INFO L796 eck$LassoCheckResult]: Loop: 2292#L23-1 main_~i~0 := main_~i~0 + main_#t~ret9;havoc main_#t~ret9; 2296#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 2291#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 2294#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 2304#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~post4;havoc #t~mem3; 2300#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 2301#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 2327#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 2328#recFINAL assume true; 2299#recEXIT >#28#return; 2297#L15-1 #res := #t~ret5;havoc #t~ret5; 2295#recFINAL assume true; 2290#recEXIT >#30#return; 2292#L23-1 [2019-11-20 04:21:04,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:21:04,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1572162950, now seen corresponding path program 6 times [2019-11-20 04:21:04,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:21:04,309 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443622806] [2019-11-20 04:21:04,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:21:04,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:21:04,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:21:04,337 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:21:04,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:21:04,337 INFO L82 PathProgramCache]: Analyzing trace with hash 773083116, now seen corresponding path program 1 times [2019-11-20 04:21:04,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:21:04,338 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266185956] [2019-11-20 04:21:04,338 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:21:04,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:21:04,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:21:04,354 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:21:04,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:21:04,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1940004217, now seen corresponding path program 7 times [2019-11-20 04:21:04,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:21:04,355 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530438451] [2019-11-20 04:21:04,355 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:21:04,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:21:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:21:04,416 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:21:04,666 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-11-20 04:21:05,002 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75 [2019-11-20 04:21:05,892 WARN L191 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 134 [2019-11-20 04:21:05,973 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 04:21:05,973 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 04:21:05,973 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 04:21:05,973 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 04:21:05,973 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 04:21:05,974 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:21:05,974 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 04:21:05,974 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 04:21:05,974 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex3.i_Iteration6_Lasso [2019-11-20 04:21:05,974 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 04:21:05,974 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 04:21:05,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:21:05,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:21:05,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:21:05,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:21:06,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:21:06,504 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 04:21:06,504 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 59 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 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:21:06,507 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:21:06,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:21:06,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:21:06,509 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:21:06,509 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:21:06,510 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:21:06,510 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:21:06,512 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:21:06,516 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:21:06,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:21:06,518 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:21:06,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:21:06,518 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:21:06,518 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:21:06,518 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:21:06,518 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:21:06,519 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 61 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 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:21:06,524 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:21:06,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:21:06,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:21:06,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:21:06,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:21:06,528 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:21:06,528 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:21:06,534 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 62 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 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:21:06,550 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:21:06,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:21:06,552 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2019-11-20 04:21:06,552 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-20 04:21:06,552 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:21:06,564 INFO L401 nArgumentSynthesizer]: We have 28 Motzkin's Theorem applications. [2019-11-20 04:21:06,564 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-20 04:21:06,582 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 63 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 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:21:06,586 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:21:06,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:21:06,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:21:06,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:21:06,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:21:06,590 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:21:06,590 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:21:06,594 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 64 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 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:21:06,599 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:21:06,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:21:06,601 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:21:06,601 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:21:06,601 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:21:06,604 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:21:06,604 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:21:06,610 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 04:21:06,619 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-11-20 04:21:06,619 INFO L444 ModelExtractionUtils]: 1 out of 13 variables were initially zero. Simplification set additionally 9 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8739aeba-52b3-45d4-9ec0-47515f049a61/bin/uautomizer/z3 Starting monitored process 65 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 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:21:06,622 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 04:21:06,624 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 04:21:06,624 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 04:21:06,624 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_#t~ret9, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_#t~ret9 + 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-11-20 04:21:06,631 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-11-20 04:21:06,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:21:06,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:21:06,670 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 04:21:06,671 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:21:06,685 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:21:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:21:06,704 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-20 04:21:06,705 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:21:06,744 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 17 treesize of output 9 [2019-11-20 04:21:06,744 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:21:06,747 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:21:06,747 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:21:06,748 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:9 [2019-11-20 04:21:06,771 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-20 04:21:06,772 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 7 loop predicates [2019-11-20 04:21:06,772 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 79 states and 92 transitions. cyclomatic complexity: 18 Second operand 9 states. [2019-11-20 04:21:06,847 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 79 states and 92 transitions. cyclomatic complexity: 18. Second operand 9 states. Result 146 states and 171 transitions. Complement of second has 24 states. [2019-11-20 04:21:06,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 2 stem states 6 non-accepting loop states 1 accepting loop states [2019-11-20 04:21:06,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-20 04:21:06,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 23 transitions. [2019-11-20 04:21:06,850 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 23 transitions. Stem has 21 letters. Loop has 13 letters. [2019-11-20 04:21:06,850 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:21:06,850 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 23 transitions. Stem has 34 letters. Loop has 13 letters. [2019-11-20 04:21:06,850 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:21:06,850 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 23 transitions. Stem has 21 letters. Loop has 26 letters. [2019-11-20 04:21:06,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:21:06,851 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 146 states and 171 transitions. [2019-11-20 04:21:06,852 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 04:21:06,852 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 146 states to 0 states and 0 transitions. [2019-11-20 04:21:06,853 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 04:21:06,853 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 04:21:06,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 04:21:06,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 04:21:06,853 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 04:21:06,853 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 04:21:06,853 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 04:21:06,853 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-11-20 04:21:06,853 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 04:21:06,853 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 04:21:06,853 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 04:21:06,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 04:21:06 BoogieIcfgContainer [2019-11-20 04:21:06,859 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 04:21:06,859 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 04:21:06,859 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 04:21:06,860 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 04:21:06,860 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:20:51" (3/4) ... [2019-11-20 04:21:06,863 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 04:21:06,863 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 04:21:06,864 INFO L168 Benchmark]: Toolchain (without parser) took 15881.66 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 445.1 MB). Free memory was 950.1 MB in the beginning and 1.3 GB in the end (delta: -366.7 MB). Peak memory consumption was 78.4 MB. Max. memory is 11.5 GB. [2019-11-20 04:21:06,865 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:21:06,865 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 201.9 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -246.2 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-20 04:21:06,865 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:21:06,866 INFO L168 Benchmark]: Boogie Preprocessor took 38.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. [2019-11-20 04:21:06,866 INFO L168 Benchmark]: RCFGBuilder took 413.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2019-11-20 04:21:06,866 INFO L168 Benchmark]: BuchiAutomizer took 15100.25 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 243.3 MB). Free memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: -144.9 MB). Peak memory consumption was 98.4 MB. Max. memory is 11.5 GB. [2019-11-20 04:21:06,867 INFO L168 Benchmark]: Witness Printer took 3.91 ms. Allocated memory is still 1.5 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:21:06,869 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 283.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 201.9 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -246.2 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 413.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 15100.25 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 243.3 MB). Free memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: -144.9 MB). Peak memory consumption was 98.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.91 ms. Allocated memory is still 1.5 GB. Free memory is still 1.3 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (0 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function i and consists of 9 locations. One deterministic module has affine ranking function 2 * unknown-#memory_int-unknown[p][p] + 1 and consists of 5 locations. One deterministic module has affine ranking function aux-rec(op)-aux + i and consists of 8 locations. One deterministic module has affine ranking function aux-rec(op)-aux + i and consists of 9 locations. One nondeterministic module has affine ranking function 2 * unknown-#memory_int-unknown[p][p] + 1 and consists of 6 locations. One nondeterministic module has affine ranking function i and consists of 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 15.0s and 7 iterations. TraceHistogramMax:3. Analysis of lassos took 11.4s. Construction of modules took 0.4s. Büchi inclusion checks took 2.8s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 63 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 82 states and ocurred in iteration 3. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 4/4 HoareTripleCheckerStatistics: 125 SDtfs, 147 SDslu, 134 SDs, 0 SdLazy, 410 SolverSat, 160 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso6 LassoPreprocessingBenchmarks: Lassos: inital190 mio100 ax100 hnf100 lsp95 ukn59 mio100 lsp28 div100 bol100 ite100 ukn100 eq174 hnf90 smp97 dnf176 smp89 tf100 neg92 sie128 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 46ms VariablesStem: 4 VariablesLoop: 5 DisjunctsStem: 4 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 28 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...