./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/count_up_and_down_alloca.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_39025be3-6d8d-49dd-bb14-399134037f9d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/count_up_and_down_alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/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 94f95b6ef0a3c8650bd30cb1958ada590298bd1c ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 00:45:07,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 00:45:07,923 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 00:45:07,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 00:45:07,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 00:45:07,936 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 00:45:07,937 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 00:45:07,940 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 00:45:07,942 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 00:45:07,943 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 00:45:07,944 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 00:45:07,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 00:45:07,946 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 00:45:07,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 00:45:07,948 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 00:45:07,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 00:45:07,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 00:45:07,951 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 00:45:07,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 00:45:07,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 00:45:07,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 00:45:07,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 00:45:07,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 00:45:07,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 00:45:07,963 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 00:45:07,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 00:45:07,964 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 00:45:07,965 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 00:45:07,965 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 00:45:07,966 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 00:45:07,967 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 00:45:07,967 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 00:45:07,968 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 00:45:07,969 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 00:45:07,970 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 00:45:07,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 00:45:07,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 00:45:07,971 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 00:45:07,971 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 00:45:07,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 00:45:07,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 00:45:07,974 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-20 00:45:07,989 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 00:45:07,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 00:45:07,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 00:45:07,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 00:45:07,990 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 00:45:07,991 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 00:45:07,991 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 00:45:07,991 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 00:45:07,991 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 00:45:07,991 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 00:45:07,992 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 00:45:07,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 00:45:07,992 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 00:45:07,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 00:45:07,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 00:45:07,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 00:45:07,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 00:45:07,993 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 00:45:07,993 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 00:45:07,994 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 00:45:07,994 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 00:45:07,994 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 00:45:07,994 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 00:45:07,994 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 00:45:07,995 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 00:45:07,995 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 00:45:07,995 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 00:45:07,995 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 00:45:07,996 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 00:45:07,996 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_39025be3-6d8d-49dd-bb14-399134037f9d/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 -> 94f95b6ef0a3c8650bd30cb1958ada590298bd1c [2019-11-20 00:45:08,129 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 00:45:08,139 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 00:45:08,143 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 00:45:08,144 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 00:45:08,145 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 00:45:08,145 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/bin/uautomizer/../../sv-benchmarks/c/termination-15/count_up_and_down_alloca.i [2019-11-20 00:45:08,197 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/bin/uautomizer/data/145de9880/0efe5b5aedc34c90bbed4f706e1e4dde/FLAG2b24193c1 [2019-11-20 00:45:08,663 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 00:45:08,663 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/sv-benchmarks/c/termination-15/count_up_and_down_alloca.i [2019-11-20 00:45:08,677 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/bin/uautomizer/data/145de9880/0efe5b5aedc34c90bbed4f706e1e4dde/FLAG2b24193c1 [2019-11-20 00:45:09,164 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/bin/uautomizer/data/145de9880/0efe5b5aedc34c90bbed4f706e1e4dde [2019-11-20 00:45:09,167 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 00:45:09,168 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 00:45:09,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 00:45:09,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 00:45:09,172 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 00:45:09,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:45:09" (1/1) ... [2019-11-20 00:45:09,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66d984b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:45:09, skipping insertion in model container [2019-11-20 00:45:09,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:45:09" (1/1) ... [2019-11-20 00:45:09,183 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 00:45:09,220 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 00:45:09,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:45:09,620 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 00:45:09,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:45:09,762 INFO L192 MainTranslator]: Completed translation [2019-11-20 00:45:09,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:45:09 WrapperNode [2019-11-20 00:45:09,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 00:45:09,764 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 00:45:09,764 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 00:45:09,764 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 00:45:09,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:45:09" (1/1) ... [2019-11-20 00:45:09,786 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:45:09" (1/1) ... [2019-11-20 00:45:09,804 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 00:45:09,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 00:45:09,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 00:45:09,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 00:45:09,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:45:09" (1/1) ... [2019-11-20 00:45:09,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:45:09" (1/1) ... [2019-11-20 00:45:09,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:45:09" (1/1) ... [2019-11-20 00:45:09,815 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:45:09" (1/1) ... [2019-11-20 00:45:09,820 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:45:09" (1/1) ... [2019-11-20 00:45:09,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:45:09" (1/1) ... [2019-11-20 00:45:09,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:45:09" (1/1) ... [2019-11-20 00:45:09,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 00:45:09,830 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 00:45:09,830 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 00:45:09,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 00:45:09,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:45:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/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 00:45:09,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 00:45:09,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 00:45:09,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 00:45:09,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 00:45:09,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 00:45:09,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 00:45:10,107 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 00:45:10,107 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 00:45:10,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:45:10 BoogieIcfgContainer [2019-11-20 00:45:10,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 00:45:10,109 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 00:45:10,110 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 00:45:10,113 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 00:45:10,114 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 00:45:10,114 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 12:45:09" (1/3) ... [2019-11-20 00:45:10,115 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@485f22c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:45:10, skipping insertion in model container [2019-11-20 00:45:10,115 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 00:45:10,115 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:45:09" (2/3) ... [2019-11-20 00:45:10,116 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@485f22c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:45:10, skipping insertion in model container [2019-11-20 00:45:10,116 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 00:45:10,116 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:45:10" (3/3) ... [2019-11-20 00:45:10,118 INFO L371 chiAutomizerObserver]: Analyzing ICFG count_up_and_down_alloca.i [2019-11-20 00:45:10,162 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 00:45:10,162 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 00:45:10,162 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 00:45:10,162 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 00:45:10,162 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 00:45:10,162 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 00:45:10,162 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 00:45:10,163 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 00:45:10,175 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2019-11-20 00:45:10,212 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-20 00:45:10,219 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:45:10,220 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:45:10,227 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-20 00:45:10,228 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 00:45:10,228 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 00:45:10,228 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2019-11-20 00:45:10,230 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-20 00:45:10,230 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:45:10,230 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:45:10,230 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-20 00:45:10,231 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 00:45:10,242 INFO L794 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 5#L-1true havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~mem208, main_#t~post207, main_#t~mem211, main_#t~post212, main_#t~mem210, main_#t~post209, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 17#L367true assume !(main_~length~0 < 1); 3#L367-2true call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 12#L369true assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);call write~int(0, main_~arr~0.base, main_~arr~0.offset, 4);main_~i~0 := 1; 15#L371-3true [2019-11-20 00:45:10,243 INFO L796 eck$LassoCheckResult]: Loop: 15#L371-3true assume !!(main_~i~0 < main_~length~0);call main_#t~mem208 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * (main_~i~0 - 1), 4);call write~int(1 + main_#t~mem208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~mem208; 13#L371-2true main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 15#L371-3true [2019-11-20 00:45:10,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:45:10,249 INFO L82 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2019-11-20 00:45:10,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:45:10,259 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549551425] [2019-11-20 00:45:10,260 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:45:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:45:10,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:45:10,395 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:45:10,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:45:10,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1667, now seen corresponding path program 1 times [2019-11-20 00:45:10,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:45:10,401 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281075347] [2019-11-20 00:45:10,401 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:45:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:45:10,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:45:10,423 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:45:10,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:45:10,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815563, now seen corresponding path program 1 times [2019-11-20 00:45:10,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:45:10,426 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932617442] [2019-11-20 00:45:10,426 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:45:10,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:45:10,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:45:10,471 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:45:10,730 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2019-11-20 00:45:10,800 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 00:45:10,801 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 00:45:10,801 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 00:45:10,802 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 00:45:10,802 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 00:45:10,802 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:45:10,802 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 00:45:10,803 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 00:45:10,803 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_and_down_alloca.i_Iteration1_Lasso [2019-11-20 00:45:10,803 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 00:45:10,803 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 00:45:10,834 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 00:45:10,846 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 00:45:10,851 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 00:45:10,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:45:10,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:45:10,862 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 00:45:10,867 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 00:45:10,871 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 00:45:10,874 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 00:45:11,067 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 00:45:11,071 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 00:45:11,074 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 00:45:11,384 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 00:45:11,389 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/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 00:45:11,407 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 00:45:11,410 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:45:11,410 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:45:11,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:45:11,411 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:45:11,411 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:45:11,413 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:45:11,414 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:45:11,420 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/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 00:45:11,441 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 00:45:11,443 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:45:11,443 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:45:11,443 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:45:11,443 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:45:11,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:45:11,444 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:45:11,444 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 00:45:11,446 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/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 00:45:11,453 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 00:45:11,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:45:11,455 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:45:11,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:45:11,455 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:45:11,455 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:45:11,456 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:45:11,456 INFO L402 nArgumentSynthesizer]: A total of 0 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 00:45:11,458 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/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 00:45:11,465 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 00:45:11,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:45:11,467 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:45:11,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:45:11,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:45:11,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:45:11,469 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:45:11,469 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 00:45:11,473 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/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 00:45:11,494 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 00:45:11,496 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:45:11,496 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:45:11,496 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:45:11,497 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:45:11,503 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 00:45:11,503 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 00:45:11,513 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/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 00:45:11,531 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 00:45:11,533 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:45:11,533 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:45:11,533 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:45:11,534 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:45:11,534 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:45:11,535 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:45:11,535 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:45:11,538 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/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 00:45:11,554 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 00:45:11,557 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:45:11,557 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:45:11,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:45:11,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:45:11,558 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:45:11,559 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:45:11,560 INFO L402 nArgumentSynthesizer]: A total of 0 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 00:45:11,562 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/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 00:45:11,578 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 00:45:11,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:45:11,581 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:45:11,581 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:45:11,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:45:11,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:45:11,582 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:45:11,582 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 00:45:11,584 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/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 00:45:11,602 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 00:45:11,604 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:45:11,604 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:45:11,604 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:45:11,605 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:45:11,605 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:45:11,606 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:45:11,606 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:45:11,608 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 00:45:11,623 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 00:45:11,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:45:11,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:45:11,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:45:11,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:45:11,636 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 00:45:11,636 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:45:11,643 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 00:45:11,650 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 00:45:11,652 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:45:11,652 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:45:11,652 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:45:11,652 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:45:11,664 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 00:45:11,665 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:45:11,673 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/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 00:45:11,686 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 00:45:11,689 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:45:11,689 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:45:11,689 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:45:11,689 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:45:11,701 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 00:45:11,701 INFO L402 nArgumentSynthesizer]: A total of 2 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 00:45:11,721 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 00:45:11,805 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-11-20 00:45:11,805 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 10 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/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 00:45:11,824 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 00:45:11,857 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-20 00:45:11,857 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 00:45:11,858 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc206.base)_1, ULTIMATE.start_main_~i~0) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc206.base)_1 - 4*ULTIMATE.start_main_~i~0 Supporting invariants [1*ULTIMATE.start_main_~arr~0.offset >= 0] [2019-11-20 00:45:11,904 INFO L297 tatePredicateManager]: 3 out of 5 supporting invariants were superfluous and have been removed [2019-11-20 00:45:11,919 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-20 00:45:11,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:45:11,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:45:11,993 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 00:45:11,995 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:45:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:45:12,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 00:45:12,030 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:45:12,063 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 00:45:12,079 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-20 00:45:12,080 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 4 states. [2019-11-20 00:45:12,211 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 4 states. Result 36 states and 51 transitions. Complement of second has 9 states. [2019-11-20 00:45:12,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 00:45:12,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 00:45:12,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 34 transitions. [2019-11-20 00:45:12,218 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-20 00:45:12,219 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:45:12,219 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-20 00:45:12,220 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:45:12,220 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 5 letters. Loop has 4 letters. [2019-11-20 00:45:12,220 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:45:12,221 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 51 transitions. [2019-11-20 00:45:12,226 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-20 00:45:12,233 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 13 states and 17 transitions. [2019-11-20 00:45:12,235 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-20 00:45:12,235 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-20 00:45:12,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2019-11-20 00:45:12,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 00:45:12,237 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-11-20 00:45:12,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2019-11-20 00:45:12,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-11-20 00:45:12,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-20 00:45:12,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2019-11-20 00:45:12,269 INFO L711 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-11-20 00:45:12,269 INFO L591 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-11-20 00:45:12,269 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 00:45:12,269 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2019-11-20 00:45:12,272 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-20 00:45:12,273 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:45:12,273 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:45:12,273 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:45:12,273 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-20 00:45:12,274 INFO L794 eck$LassoCheckResult]: Stem: 135#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 129#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~mem208, main_#t~post207, main_#t~mem211, main_#t~post212, main_#t~mem210, main_#t~post209, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 130#L367 assume !(main_~length~0 < 1); 136#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 137#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);call write~int(0, main_~arr~0.base, main_~arr~0.offset, 4);main_~i~0 := 1; 140#L371-3 assume !(main_~i~0 < main_~length~0); 141#L371-4 main_~j~0 := 0; 134#L374-3 [2019-11-20 00:45:12,274 INFO L796 eck$LassoCheckResult]: Loop: 134#L374-3 assume !!(main_~j~0 < main_~length~0); 131#L375-3 call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 132#L375-1 assume !(main_#t~mem210 > 0);havoc main_#t~mem210; 133#L374-2 main_#t~post209 := main_~j~0;main_~j~0 := 1 + main_#t~post209;havoc main_#t~post209; 134#L374-3 [2019-11-20 00:45:12,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:45:12,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815505, now seen corresponding path program 1 times [2019-11-20 00:45:12,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:45:12,276 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149730993] [2019-11-20 00:45:12,276 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Exception during sending of exit command (exit): Broken pipe [2019-11-20 00:45:12,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:45:12,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:45:12,353 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:45:12,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:45:12,353 INFO L82 PathProgramCache]: Analyzing trace with hash 2036812, now seen corresponding path program 1 times [2019-11-20 00:45:12,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:45:12,354 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111874928] [2019-11-20 00:45:12,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:45:12,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:45:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:45:12,389 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:45:12,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:45:12,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1386095268, now seen corresponding path program 1 times [2019-11-20 00:45:12,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:45:12,390 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984660690] [2019-11-20 00:45:12,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:45:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:45:12,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:45:12,436 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:45:12,625 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2019-11-20 00:45:12,674 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 00:45:12,674 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 00:45:12,674 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 00:45:12,674 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 00:45:12,674 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 00:45:12,674 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:45:12,674 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 00:45:12,675 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 00:45:12,675 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_and_down_alloca.i_Iteration2_Lasso [2019-11-20 00:45:12,675 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 00:45:12,675 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 00:45:12,678 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 00:45:12,683 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 00:45:12,685 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 00:45:12,690 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 00:45:12,697 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 00:45:12,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:45:12,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:45:12,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:45:12,860 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 00:45:12,862 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 00:45:12,864 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 00:45:13,126 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 00:45:13,127 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/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) [2019-11-20 00:45:13,137 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 00:45:13,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:45:13,138 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:45:13,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:45:13,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:45:13,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:45:13,140 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:45:13,140 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:45:13,142 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/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) [2019-11-20 00:45:13,159 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 00:45:13,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:45:13,161 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:45:13,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:45:13,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:45:13,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:45:13,162 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:45:13,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:45:13,163 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/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) [2019-11-20 00:45:13,182 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 00:45:13,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:45:13,185 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:45:13,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:45:13,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:45:13,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:45:13,188 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:45:13,188 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:45:13,190 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/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 00:45:13,204 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 00:45:13,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:45:13,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:45:13,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:45:13,206 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:45:13,214 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 00:45:13,215 INFO L402 nArgumentSynthesizer]: A total of 2 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 00:45:13,220 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/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 00:45:13,241 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 00:45:13,244 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:45:13,244 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:45:13,244 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:45:13,245 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:45:13,252 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 00:45:13,253 INFO L402 nArgumentSynthesizer]: A total of 2 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 00:45:13,266 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 00:45:13,300 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2019-11-20 00:45:13,300 INFO L444 ModelExtractionUtils]: 9 out of 25 variables were initially zero. Simplification set additionally 13 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/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) [2019-11-20 00:45:13,320 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:45:13,323 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 00:45:13,323 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 00:45:13,324 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~length~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~length~0 Supporting invariants [] [2019-11-20 00:45:13,339 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-11-20 00:45:13,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:45:13,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:45:13,380 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 00:45:13,381 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:45:13,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:45:13,393 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 00:45:13,394 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:45:13,408 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 00:45:13,408 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-20 00:45:13,408 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 6 Second operand 3 states. [2019-11-20 00:45:13,429 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 18 states and 24 transitions. Complement of second has 4 states. [2019-11-20 00:45:13,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 00:45:13,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 00:45:13,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2019-11-20 00:45:13,430 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 7 letters. Loop has 4 letters. [2019-11-20 00:45:13,431 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:45:13,431 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 11 letters. Loop has 4 letters. [2019-11-20 00:45:13,431 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:45:13,431 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 7 letters. Loop has 8 letters. [2019-11-20 00:45:13,432 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:45:13,432 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 24 transitions. [2019-11-20 00:45:13,433 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 00:45:13,434 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 17 states and 23 transitions. [2019-11-20 00:45:13,434 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-20 00:45:13,434 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-20 00:45:13,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 23 transitions. [2019-11-20 00:45:13,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 00:45:13,434 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2019-11-20 00:45:13,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 23 transitions. [2019-11-20 00:45:13,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-11-20 00:45:13,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-20 00:45:13,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2019-11-20 00:45:13,437 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2019-11-20 00:45:13,437 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2019-11-20 00:45:13,437 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 00:45:13,437 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 22 transitions. [2019-11-20 00:45:13,438 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 00:45:13,438 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:45:13,438 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:45:13,438 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:45:13,439 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 00:45:13,439 INFO L794 eck$LassoCheckResult]: Stem: 234#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 225#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~mem208, main_#t~post207, main_#t~mem211, main_#t~post212, main_#t~mem210, main_#t~post209, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 226#L367 assume !(main_~length~0 < 1); 235#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 236#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);call write~int(0, main_~arr~0.base, main_~arr~0.offset, 4);main_~i~0 := 1; 237#L371-3 assume !(main_~i~0 < main_~length~0); 240#L371-4 main_~j~0 := 0; 233#L374-3 assume !!(main_~j~0 < main_~length~0); 227#L375-3 [2019-11-20 00:45:13,439 INFO L796 eck$LassoCheckResult]: Loop: 227#L375-3 call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 228#L375-1 assume !!(main_#t~mem210 > 0);havoc main_#t~mem210;call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post212 := main_#t~mem211;call write~int(main_#t~post212 - 1, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~post212;havoc main_#t~mem211; 227#L375-3 [2019-11-20 00:45:13,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:45:13,439 INFO L82 PathProgramCache]: Analyzing trace with hash 176705843, now seen corresponding path program 1 times [2019-11-20 00:45:13,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:45:13,440 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111084409] [2019-11-20 00:45:13,440 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:45:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:45:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:45:13,459 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:45:13,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:45:13,459 INFO L82 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 1 times [2019-11-20 00:45:13,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:45:13,460 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389103973] [2019-11-20 00:45:13,460 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:45:13,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:45:13,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:45:13,468 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:45:13,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:45:13,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1984375400, now seen corresponding path program 1 times [2019-11-20 00:45:13,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:45:13,469 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339432717] [2019-11-20 00:45:13,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:45:13,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:45:13,611 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 00:45:13,612 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339432717] [2019-11-20 00:45:13,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:45:13,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 00:45:13,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817615404] [2019-11-20 00:45:13,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:45:13,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 00:45:13,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-20 00:45:13,657 INFO L87 Difference]: Start difference. First operand 16 states and 22 transitions. cyclomatic complexity: 9 Second operand 6 states. [2019-11-20 00:45:13,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:45:13,720 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2019-11-20 00:45:13,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 00:45:13,720 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2019-11-20 00:45:13,722 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 00:45:13,722 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 25 states and 32 transitions. [2019-11-20 00:45:13,722 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-11-20 00:45:13,722 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-11-20 00:45:13,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 32 transitions. [2019-11-20 00:45:13,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 00:45:13,723 INFO L688 BuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2019-11-20 00:45:13,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 32 transitions. [2019-11-20 00:45:13,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 18. [2019-11-20 00:45:13,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-20 00:45:13,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2019-11-20 00:45:13,725 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-11-20 00:45:13,725 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-11-20 00:45:13,725 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 00:45:13,726 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2019-11-20 00:45:13,726 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 00:45:13,726 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:45:13,726 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:45:13,727 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:45:13,727 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 00:45:13,727 INFO L794 eck$LassoCheckResult]: Stem: 291#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 287#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~mem208, main_#t~post207, main_#t~mem211, main_#t~post212, main_#t~mem210, main_#t~post209, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 288#L367 assume !(main_~length~0 < 1); 292#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 293#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);call write~int(0, main_~arr~0.base, main_~arr~0.offset, 4);main_~i~0 := 1; 294#L371-3 assume !(main_~i~0 < main_~length~0); 298#L371-4 main_~j~0 := 0; 289#L374-3 assume !!(main_~j~0 < main_~length~0); 290#L375-3 call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 297#L375-1 assume !(main_#t~mem210 > 0);havoc main_#t~mem210; 285#L374-2 main_#t~post209 := main_~j~0;main_~j~0 := 1 + main_#t~post209;havoc main_#t~post209; 286#L374-3 assume !!(main_~j~0 < main_~length~0); 281#L375-3 [2019-11-20 00:45:13,727 INFO L796 eck$LassoCheckResult]: Loop: 281#L375-3 call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 282#L375-1 assume !!(main_#t~mem210 > 0);havoc main_#t~mem210;call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post212 := main_#t~mem211;call write~int(main_#t~post212 - 1, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~post212;havoc main_#t~mem211; 281#L375-3 [2019-11-20 00:45:13,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:45:13,727 INFO L82 PathProgramCache]: Analyzing trace with hash -19280312, now seen corresponding path program 2 times [2019-11-20 00:45:13,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:45:13,728 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255411394] [2019-11-20 00:45:13,728 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:45:13,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:45:13,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:45:13,796 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255411394] [2019-11-20 00:45:13,796 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064529237] [2019-11-20 00:45:13,796 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/bin/uautomizer/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 00:45:13,845 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 00:45:13,845 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 00:45:13,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 00:45:13,846 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:45:13,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:45:13,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 00:45:13,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2019-11-20 00:45:13,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777171411] [2019-11-20 00:45:13,921 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 00:45:13,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:45:13,921 INFO L82 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 2 times [2019-11-20 00:45:13,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:45:13,921 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914551230] [2019-11-20 00:45:13,922 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:45:13,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:45:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:45:13,929 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:45:13,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:45:13,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 00:45:13,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2019-11-20 00:45:13,966 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. cyclomatic complexity: 8 Second operand 6 states. [2019-11-20 00:45:14,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:45:14,053 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2019-11-20 00:45:14,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 00:45:14,054 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 41 transitions. [2019-11-20 00:45:14,055 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 00:45:14,056 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 19 states and 22 transitions. [2019-11-20 00:45:14,056 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-20 00:45:14,056 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-20 00:45:14,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 22 transitions. [2019-11-20 00:45:14,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 00:45:14,057 INFO L688 BuchiCegarLoop]: Abstraction has 19 states and 22 transitions. [2019-11-20 00:45:14,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 22 transitions. [2019-11-20 00:45:14,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2019-11-20 00:45:14,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-20 00:45:14,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2019-11-20 00:45:14,059 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-11-20 00:45:14,059 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-11-20 00:45:14,059 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-20 00:45:14,059 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2019-11-20 00:45:14,060 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 00:45:14,060 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:45:14,060 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:45:14,061 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:45:14,061 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 00:45:14,061 INFO L794 eck$LassoCheckResult]: Stem: 398#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 392#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~mem208, main_#t~post207, main_#t~mem211, main_#t~post212, main_#t~mem210, main_#t~post209, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 393#L367 assume !(main_~length~0 < 1); 399#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 400#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);call write~int(0, main_~arr~0.base, main_~arr~0.offset, 4);main_~i~0 := 1; 401#L371-3 assume !!(main_~i~0 < main_~length~0);call main_#t~mem208 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * (main_~i~0 - 1), 4);call write~int(1 + main_#t~mem208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~mem208; 402#L371-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 403#L371-3 assume !(main_~i~0 < main_~length~0); 405#L371-4 main_~j~0 := 0; 396#L374-3 assume !!(main_~j~0 < main_~length~0); 397#L375-3 call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 404#L375-1 assume !(main_#t~mem210 > 0);havoc main_#t~mem210; 394#L374-2 main_#t~post209 := main_~j~0;main_~j~0 := 1 + main_#t~post209;havoc main_#t~post209; 395#L374-3 assume !!(main_~j~0 < main_~length~0); 388#L375-3 [2019-11-20 00:45:14,061 INFO L796 eck$LassoCheckResult]: Loop: 388#L375-3 call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 389#L375-1 assume !!(main_#t~mem210 > 0);havoc main_#t~mem210;call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post212 := main_#t~mem211;call write~int(main_#t~post212 - 1, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~post212;havoc main_#t~mem211; 388#L375-3 [2019-11-20 00:45:14,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:45:14,061 INFO L82 PathProgramCache]: Analyzing trace with hash -744742010, now seen corresponding path program 1 times [2019-11-20 00:45:14,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:45:14,062 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980115011] [2019-11-20 00:45:14,062 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:45:14,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:45:14,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:45:14,099 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:45:14,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:45:14,100 INFO L82 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 3 times [2019-11-20 00:45:14,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:45:14,100 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934032661] [2019-11-20 00:45:14,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:45:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:45:14,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:45:14,125 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:45:14,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:45:14,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1562468139, now seen corresponding path program 1 times [2019-11-20 00:45:14,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:45:14,126 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645932228] [2019-11-20 00:45:14,126 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:45:14,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:45:14,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:45:14,161 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:45:14,505 WARN L191 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 81 [2019-11-20 00:45:14,559 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 00:45:14,559 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 00:45:14,559 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 00:45:14,559 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 00:45:14,559 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 00:45:14,559 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:45:14,559 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 00:45:14,559 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 00:45:14,559 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_and_down_alloca.i_Iteration5_Lasso [2019-11-20 00:45:14,559 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 00:45:14,560 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 00:45:14,562 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 00:45:14,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:45:14,572 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 00:45:14,574 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 00:45:14,575 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 00:45:14,581 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 00:45:14,585 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 00:45:14,754 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 00:45:14,756 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 00:45:14,757 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 00:45:14,760 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 00:45:15,055 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 00:45:15,056 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/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 00:45:15,077 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 00:45:15,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:45:15,079 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:45:15,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:45:15,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:45:15,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:45:15,080 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:45:15,080 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 00:45:15,082 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/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 00:45:15,091 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 00:45:15,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:45:15,093 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:45:15,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:45:15,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:45:15,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:45:15,094 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:45:15,094 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 00:45:15,096 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/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 00:45:15,107 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 00:45:15,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:45:15,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:45:15,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:45:15,109 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:45:15,111 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 00:45:15,111 INFO L402 nArgumentSynthesizer]: A total of 2 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 00:45:15,115 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/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 00:45:15,123 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 00:45:15,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:45:15,125 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:45:15,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:45:15,125 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:45:15,125 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:45:15,126 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:45:15,126 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 00:45:15,128 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/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 00:45:15,140 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 00:45:15,143 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:45:15,143 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:45:15,143 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:45:15,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:45:15,143 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:45:15,144 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:45:15,144 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:45:15,146 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/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) [2019-11-20 00:45:15,157 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 00:45:15,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:45:15,159 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:45:15,159 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:45:15,159 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:45:15,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:45:15,160 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:45:15,160 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:45:15,162 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/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 00:45:15,171 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 00:45:15,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:45:15,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:45:15,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:45:15,173 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:45:15,180 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 00:45:15,180 INFO L402 nArgumentSynthesizer]: A total of 2 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 00:45:15,184 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:45:15,189 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 00:45:15,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:45:15,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:45:15,191 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:45:15,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:45:15,194 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 00:45:15,194 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 00:45:15,198 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:45:15,202 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 00:45:15,203 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:45:15,204 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:45:15,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:45:15,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:45:15,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:45:15,204 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:45:15,205 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 00:45:15,206 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 00:45:15,209 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 00:45:15,209 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39025be3-6d8d-49dd-bb14-399134037f9d/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:45:15,212 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 00:45:15,212 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 00:45:15,212 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 00:45:15,212 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) (+ (* ULTIMATE.start_main_~j~0 4) ULTIMATE.start_main_~arr~0.offset))_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) (+ (* ULTIMATE.start_main_~j~0 4) ULTIMATE.start_main_~arr~0.offset))_2 Supporting invariants [] [2019-11-20 00:45:15,223 INFO L297 tatePredicateManager]: 5 out of 5 supporting invariants were superfluous and have been removed [2019-11-20 00:45:15,224 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-20 00:45:15,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:45:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:45:15,251 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 00:45:15,252 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:45:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:45:15,261 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 00:45:15,262 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:45:15,274 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 00:45:15,275 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-20 00:45:15,275 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand 3 states. [2019-11-20 00:45:15,287 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 21 states and 24 transitions. Complement of second has 7 states. [2019-11-20 00:45:15,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 00:45:15,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 00:45:15,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2019-11-20 00:45:15,288 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 14 letters. Loop has 2 letters. [2019-11-20 00:45:15,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:45:15,288 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 00:45:15,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:45:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:45:15,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 00:45:15,315 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:45:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:45:15,322 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 00:45:15,322 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:45:15,334 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 00:45:15,334 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-20 00:45:15,335 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand 3 states. [2019-11-20 00:45:15,345 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 21 states and 24 transitions. Complement of second has 7 states. [2019-11-20 00:45:15,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 00:45:15,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 00:45:15,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2019-11-20 00:45:15,346 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 14 letters. Loop has 2 letters. [2019-11-20 00:45:15,347 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:45:15,347 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 00:45:15,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:45:15,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:45:15,381 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 00:45:15,382 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:45:15,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:45:15,389 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 00:45:15,390 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:45:15,399 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 00:45:15,399 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-20 00:45:15,399 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand 3 states. [2019-11-20 00:45:15,414 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 23 states and 28 transitions. Complement of second has 6 states. [2019-11-20 00:45:15,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 00:45:15,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 00:45:15,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2019-11-20 00:45:15,416 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 14 letters. Loop has 2 letters. [2019-11-20 00:45:15,416 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:45:15,416 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 16 letters. Loop has 2 letters. [2019-11-20 00:45:15,416 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:45:15,416 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 14 letters. Loop has 4 letters. [2019-11-20 00:45:15,417 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:45:15,417 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 28 transitions. [2019-11-20 00:45:15,418 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 00:45:15,418 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2019-11-20 00:45:15,418 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 00:45:15,418 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 00:45:15,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 00:45:15,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 00:45:15,418 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 00:45:15,418 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 00:45:15,418 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 00:45:15,418 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-20 00:45:15,418 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 00:45:15,419 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 00:45:15,419 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 00:45:15,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 12:45:15 BoogieIcfgContainer [2019-11-20 00:45:15,424 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 00:45:15,425 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 00:45:15,425 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 00:45:15,425 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 00:45:15,425 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:45:10" (3/4) ... [2019-11-20 00:45:15,428 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 00:45:15,428 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 00:45:15,430 INFO L168 Benchmark]: Toolchain (without parser) took 6261.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.9 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -95.0 MB). Peak memory consumption was 86.9 MB. Max. memory is 11.5 GB. [2019-11-20 00:45:15,430 INFO L168 Benchmark]: CDTParser took 0.23 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 00:45:15,431 INFO L168 Benchmark]: CACSL2BoogieTranslator took 594.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -162.6 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-11-20 00:45:15,431 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:45:15,431 INFO L168 Benchmark]: Boogie Preprocessor took 25.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 00:45:15,432 INFO L168 Benchmark]: RCFGBuilder took 278.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-20 00:45:15,433 INFO L168 Benchmark]: BuchiAutomizer took 5314.93 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 51.9 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.2 MB). Peak memory consumption was 97.1 MB. Max. memory is 11.5 GB. [2019-11-20 00:45:15,433 INFO L168 Benchmark]: Witness Printer took 3.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:45:15,435 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 594.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -162.6 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 278.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 5314.93 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 51.9 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.2 MB). Peak memory consumption was 97.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 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 #length - 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca(length*sizeof(int))] + -4 * i and consists of 6 locations. One deterministic module has affine ranking function -1 * j + length and consists of 3 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[arr][j * 4 + arr] and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.2s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 4.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 73 SDtfs, 110 SDslu, 43 SDs, 0 SdLazy, 109 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital143 mio100 ax100 hnf99 lsp95 ukn78 mio100 lsp60 div100 bol100 ite100 ukn100 eq157 hnf87 smp93 dnf100 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 37ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 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...