./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 f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/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_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/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 0.1.25-f470102 [2019-12-07 14:24:40,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:24:40,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:24:40,823 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:24:40,824 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:24:40,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:24:40,826 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:24:40,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:24:40,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:24:40,829 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:24:40,830 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:24:40,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:24:40,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:24:40,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:24:40,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:24:40,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:24:40,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:24:40,834 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:24:40,835 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:24:40,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:24:40,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:24:40,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:24:40,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:24:40,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:24:40,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:24:40,844 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:24:40,844 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:24:40,844 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:24:40,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:24:40,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:24:40,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:24:40,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:24:40,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:24:40,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:24:40,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:24:40,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:24:40,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:24:40,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:24:40,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:24:40,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:24:40,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:24:40,849 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 14:24:40,863 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:24:40,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:24:40,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 14:24:40,865 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 14:24:40,865 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 14:24:40,865 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 14:24:40,865 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 14:24:40,865 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 14:24:40,865 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 14:24:40,866 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 14:24:40,866 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 14:24:40,866 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:24:40,866 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 14:24:40,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:24:40,867 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:24:40,867 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 14:24:40,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 14:24:40,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 14:24:40,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:24:40,868 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 14:24:40,868 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:24:40,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 14:24:40,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:24:40,868 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:24:40,868 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 14:24:40,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:24:40,869 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 14:24:40,869 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:24:40,869 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 14:24:40,870 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 14:24:40,870 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_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/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 [2019-12-07 14:24:40,971 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:24:40,981 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:24:40,984 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:24:40,985 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:24:40,985 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:24:40,986 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/../../sv-benchmarks/c/termination-15/count_up_and_down_alloca.i [2019-12-07 14:24:41,032 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/data/9b6f4cd0f/2e7c1c65f03b40c687d760d1f2d3e9b8/FLAG2edffcf37 [2019-12-07 14:24:41,474 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:24:41,475 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/sv-benchmarks/c/termination-15/count_up_and_down_alloca.i [2019-12-07 14:24:41,481 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/data/9b6f4cd0f/2e7c1c65f03b40c687d760d1f2d3e9b8/FLAG2edffcf37 [2019-12-07 14:24:41,490 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/data/9b6f4cd0f/2e7c1c65f03b40c687d760d1f2d3e9b8 [2019-12-07 14:24:41,492 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:24:41,492 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:24:41,493 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:24:41,493 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:24:41,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:24:41,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:24:41" (1/1) ... [2019-12-07 14:24:41,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c5b0273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:24:41, skipping insertion in model container [2019-12-07 14:24:41,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:24:41" (1/1) ... [2019-12-07 14:24:41,502 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:24:41,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:24:41,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:24:41,745 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:24:41,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:24:41,820 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:24:41,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:24:41 WrapperNode [2019-12-07 14:24:41,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:24:41,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:24:41,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:24:41,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:24:41,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:24:41" (1/1) ... [2019-12-07 14:24:41,838 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:24:41" (1/1) ... [2019-12-07 14:24:41,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:24:41,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:24:41,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:24:41,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:24:41,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:24:41" (1/1) ... [2019-12-07 14:24:41,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:24:41" (1/1) ... [2019-12-07 14:24:41,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:24:41" (1/1) ... [2019-12-07 14:24:41,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:24:41" (1/1) ... [2019-12-07 14:24:41,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:24:41" (1/1) ... [2019-12-07 14:24:41,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:24:41" (1/1) ... [2019-12-07 14:24:41,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:24:41" (1/1) ... [2019-12-07 14:24:41,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:24:41,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:24:41,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:24:41,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:24:41,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:24:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 14:24:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 14:24:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 14:24:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 14:24:41,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:24:41,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:24:42,054 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:24:42,054 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 14:24:42,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:24:42 BoogieIcfgContainer [2019-12-07 14:24:42,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:24:42,055 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 14:24:42,055 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 14:24:42,057 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 14:24:42,058 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:24:42,058 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 02:24:41" (1/3) ... [2019-12-07 14:24:42,059 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5187355d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 02:24:42, skipping insertion in model container [2019-12-07 14:24:42,059 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:24:42,059 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:24:41" (2/3) ... [2019-12-07 14:24:42,059 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5187355d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 02:24:42, skipping insertion in model container [2019-12-07 14:24:42,059 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:24:42,059 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:24:42" (3/3) ... [2019-12-07 14:24:42,060 INFO L371 chiAutomizerObserver]: Analyzing ICFG count_up_and_down_alloca.i [2019-12-07 14:24:42,088 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 14:24:42,088 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 14:24:42,088 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 14:24:42,088 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:24:42,088 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:24:42,088 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 14:24:42,088 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:24:42,088 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 14:24:42,097 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2019-12-07 14:24:42,112 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-12-07 14:24:42,112 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:24:42,112 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:24:42,116 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 14:24:42,116 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 14:24:42,116 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 14:24:42,117 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2019-12-07 14:24:42,118 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-12-07 14:24:42,118 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:24:42,118 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:24:42,118 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 14:24:42,118 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 14:24:42,123 INFO L794 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 5#L-1true havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~mem208, main_#t~post207, main_#t~mem211, main_#t~post212, main_#t~mem210, main_#t~post209, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 17#L367true assume !(main_~length~0 < 1); 3#L367-2true call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 12#L369true assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);call write~int(0, main_~arr~0.base, main_~arr~0.offset, 4);main_~i~0 := 1; 15#L371-3true [2019-12-07 14:24:42,123 INFO L796 eck$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 [2019-12-07 14:24:42,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:24:42,127 INFO L82 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2019-12-07 14:24:42,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:24:42,133 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019535289] [2019-12-07 14:24:42,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:24:42,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:24:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:24:42,221 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:24:42,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:24:42,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1667, now seen corresponding path program 1 times [2019-12-07 14:24:42,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:24:42,222 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297409695] [2019-12-07 14:24:42,222 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:24:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:24:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:24:42,234 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:24:42,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:24:42,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815563, now seen corresponding path program 1 times [2019-12-07 14:24:42,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:24:42,236 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944701500] [2019-12-07 14:24:42,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:24:42,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:24:42,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:24:42,261 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:24:42,427 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:24:42,428 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:24:42,428 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:24:42,428 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:24:42,428 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:24:42,428 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:42,428 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:24:42,428 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:24:42,428 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_and_down_alloca.i_Iteration1_Lasso [2019-12-07 14:24:42,429 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:24:42,429 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:24:42,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:42,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:42,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:42,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:42,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:42,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:42,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:42,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:42,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:42,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:42,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:42,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:42,736 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:24:42,739 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:42,743 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:24:42,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:24:42,745 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:24:42,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:24:42,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:24:42,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:24:42,747 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:24:42,747 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:24:42,749 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:42,753 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:24:42,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:24:42,754 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:24:42,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:24:42,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:24:42,754 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:24:42,755 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:24:42,755 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:24:42,756 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:42,759 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:24:42,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:24:42,761 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:24:42,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:24:42,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:24:42,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:24:42,762 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:24:42,762 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:24:42,763 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:42,766 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:24:42,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:24:42,768 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:24:42,768 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:24:42,768 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:24:42,768 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:24:42,768 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:24:42,769 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:24:42,770 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:42,774 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:24:42,775 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:24:42,775 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:24:42,776 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:24:42,776 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:24:42,778 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:24:42,778 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:24:42,782 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:42,785 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:24:42,787 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:24:42,787 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:24:42,787 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:24:42,787 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:24:42,787 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:24:42,788 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:24:42,788 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:24:42,789 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:42,792 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:24:42,793 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:24:42,793 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:24:42,794 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:24:42,794 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:24:42,794 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:24:42,794 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:24:42,794 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:24:42,796 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:42,800 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:24:42,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:24:42,801 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:24:42,801 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:24:42,801 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:24:42,801 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:24:42,802 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:24:42,802 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:24:42,803 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:42,807 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:24:42,809 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:24:42,809 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:24:42,809 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:24:42,809 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:24:42,809 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:24:42,810 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:24:42,810 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:24:42,811 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:42,815 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:24:42,817 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:24:42,817 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:24:42,817 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:24:42,817 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:24:42,820 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:24:42,821 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:24:42,825 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:42,829 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:24:42,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:24:42,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:24:42,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:24:42,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:24:42,834 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:24:42,834 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:24:42,840 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:42,844 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:24:42,845 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:24:42,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:24:42,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:24:42,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:24:42,852 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:24:42,853 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:24:42,862 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:24:42,878 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-12-07 14:24:42,879 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_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:42,883 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:24:42,886 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 14:24:42,887 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:24:42,887 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_#t~malloc206.base)_1) = -4*ULTIMATE.start_main_~i~0 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc206.base)_1 Supporting invariants [1*ULTIMATE.start_main_~arr~0.offset >= 0] [2019-12-07 14:24:42,902 INFO L297 tatePredicateManager]: 3 out of 5 supporting invariants were superfluous and have been removed [2019-12-07 14:24:42,913 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 14:24:42,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:24:42,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:24:42,950 INFO L264 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 14:24:42,952 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:24:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:24:42,972 INFO L264 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 14:24:42,973 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:24:42,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:24:43,000 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 [2019-12-07 14:24:43,001 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 4 states. [2019-12-07 14:24:43,071 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. [2019-12-07 14:24:43,071 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 [2019-12-07 14:24:43,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 14:24:43,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 34 transitions. [2019-12-07 14:24:43,074 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 5 letters. Loop has 2 letters. [2019-12-07 14:24:43,075 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:24:43,076 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 7 letters. Loop has 2 letters. [2019-12-07 14:24:43,076 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:24:43,076 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 5 letters. Loop has 4 letters. [2019-12-07 14:24:43,076 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:24:43,077 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 51 transitions. [2019-12-07 14:24:43,080 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 14:24:43,083 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 13 states and 17 transitions. [2019-12-07 14:24:43,084 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-12-07 14:24:43,084 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-12-07 14:24:43,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2019-12-07 14:24:43,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:24:43,085 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-12-07 14:24:43,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2019-12-07 14:24:43,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-12-07 14:24:43,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-12-07 14:24:43,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2019-12-07 14:24:43,106 INFO L711 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-12-07 14:24:43,106 INFO L591 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-12-07 14:24:43,106 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 14:24:43,106 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2019-12-07 14:24:43,107 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 14:24:43,107 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:24:43,107 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:24:43,107 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:24:43,107 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 14:24:43,108 INFO L794 eck$LassoCheckResult]: Stem: 135#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 129#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~mem208, main_#t~post207, main_#t~mem211, main_#t~post212, main_#t~mem210, main_#t~post209, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 130#L367 assume !(main_~length~0 < 1); 136#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 137#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);call write~int(0, main_~arr~0.base, main_~arr~0.offset, 4);main_~i~0 := 1; 140#L371-3 assume !(main_~i~0 < main_~length~0); 141#L371-4 main_~j~0 := 0; 134#L374-3 [2019-12-07 14:24:43,108 INFO L796 eck$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 [2019-12-07 14:24:43,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:24:43,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815505, now seen corresponding path program 1 times [2019-12-07 14:24:43,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:24:43,108 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500142068] [2019-12-07 14:24:43,108 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:24:43,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:24:43,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:24:43,130 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:24:43,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:24:43,131 INFO L82 PathProgramCache]: Analyzing trace with hash 2036812, now seen corresponding path program 1 times [2019-12-07 14:24:43,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:24:43,131 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185897480] [2019-12-07 14:24:43,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:24:43,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:24:43,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:24:43,141 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:24:43,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:24:43,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1386095268, now seen corresponding path program 1 times [2019-12-07 14:24:43,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:24:43,142 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801784346] [2019-12-07 14:24:43,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:24:43,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:24:43,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:24:43,163 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:24:43,291 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:24:43,291 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:24:43,292 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:24:43,292 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:24:43,292 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:24:43,292 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:43,292 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:24:43,292 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:24:43,292 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_and_down_alloca.i_Iteration2_Lasso [2019-12-07 14:24:43,292 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:24:43,292 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:24:43,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:43,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:43,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:43,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:43,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:43,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:43,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:43,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:43,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:43,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:43,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:43,531 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:24:43,531 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:43,536 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:24:43,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:24:43,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:24:43,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:24:43,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:24:43,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:24:43,538 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:24:43,538 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:24:43,539 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:43,547 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:24:43,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:24:43,549 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:24:43,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:24:43,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:24:43,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:24:43,549 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:24:43,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:24:43,550 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:43,555 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:24:43,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:24:43,556 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:24:43,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:24:43,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:24:43,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:24:43,557 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:24:43,557 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:24:43,558 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:43,563 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:24:43,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:24:43,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:24:43,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:24:43,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:24:43,566 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:24:43,566 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:24:43,569 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:43,574 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:24:43,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:24:43,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:24:43,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:24:43,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:24:43,580 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:24:43,580 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:24:43,592 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:24:43,609 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2019-12-07 14:24:43,609 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_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:43,612 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:24:43,614 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 14:24:43,614 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:24:43,615 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 [] [2019-12-07 14:24:43,622 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-12-07 14:24:43,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:24:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:24:43,637 INFO L264 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:24:43,638 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:24:43,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:24:43,641 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 14:24:43,642 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:24:43,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:24:43,649 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 [2019-12-07 14:24:43,649 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 6 Second operand 3 states. [2019-12-07 14:24:43,658 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. [2019-12-07 14:24:43,658 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 [2019-12-07 14:24:43,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 14:24:43,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2019-12-07 14:24:43,659 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 7 letters. Loop has 4 letters. [2019-12-07 14:24:43,659 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:24:43,660 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 11 letters. Loop has 4 letters. [2019-12-07 14:24:43,660 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:24:43,660 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 7 letters. Loop has 8 letters. [2019-12-07 14:24:43,660 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:24:43,660 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 24 transitions. [2019-12-07 14:24:43,661 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 14:24:43,661 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 17 states and 23 transitions. [2019-12-07 14:24:43,661 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-12-07 14:24:43,662 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-12-07 14:24:43,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 23 transitions. [2019-12-07 14:24:43,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:24:43,662 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2019-12-07 14:24:43,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 23 transitions. [2019-12-07 14:24:43,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-12-07 14:24:43,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-07 14:24:43,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2019-12-07 14:24:43,663 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2019-12-07 14:24:43,663 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2019-12-07 14:24:43,663 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 14:24:43,663 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 22 transitions. [2019-12-07 14:24:43,664 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 14:24:43,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:24:43,664 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:24:43,664 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:24:43,664 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 14:24:43,664 INFO L794 eck$LassoCheckResult]: Stem: 234#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 225#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~mem208, main_#t~post207, main_#t~mem211, main_#t~post212, main_#t~mem210, main_#t~post209, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 226#L367 assume !(main_~length~0 < 1); 235#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 236#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);call write~int(0, main_~arr~0.base, main_~arr~0.offset, 4);main_~i~0 := 1; 237#L371-3 assume !(main_~i~0 < main_~length~0); 240#L371-4 main_~j~0 := 0; 233#L374-3 assume !!(main_~j~0 < main_~length~0); 227#L375-3 [2019-12-07 14:24:43,665 INFO L796 eck$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~mem211;havoc main_#t~post212; 227#L375-3 [2019-12-07 14:24:43,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:24:43,665 INFO L82 PathProgramCache]: Analyzing trace with hash 176705843, now seen corresponding path program 1 times [2019-12-07 14:24:43,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:24:43,665 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844747629] [2019-12-07 14:24:43,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:24:43,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:24:43,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:24:43,678 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:24:43,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:24:43,679 INFO L82 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 1 times [2019-12-07 14:24:43,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:24:43,679 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254483291] [2019-12-07 14:24:43,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:24:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:24:43,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:24:43,685 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:24:43,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:24:43,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1984375400, now seen corresponding path program 1 times [2019-12-07 14:24:43,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:24:43,685 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354790930] [2019-12-07 14:24:43,685 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:24:43,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:24:43,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:24:43,758 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354790930] [2019-12-07 14:24:43,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:24:43,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 14:24:43,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963719875] [2019-12-07 14:24:43,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:24:43,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 14:24:43,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 14:24:43,780 INFO L87 Difference]: Start difference. First operand 16 states and 22 transitions. cyclomatic complexity: 9 Second operand 6 states. [2019-12-07 14:24:43,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:24:43,819 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2019-12-07 14:24:43,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 14:24:43,820 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2019-12-07 14:24:43,821 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 14:24:43,821 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 25 states and 32 transitions. [2019-12-07 14:24:43,821 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-12-07 14:24:43,821 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-12-07 14:24:43,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 32 transitions. [2019-12-07 14:24:43,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:24:43,822 INFO L688 BuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2019-12-07 14:24:43,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 32 transitions. [2019-12-07 14:24:43,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 18. [2019-12-07 14:24:43,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-07 14:24:43,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2019-12-07 14:24:43,823 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-12-07 14:24:43,823 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-12-07 14:24:43,823 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 14:24:43,823 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2019-12-07 14:24:43,824 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 14:24:43,824 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:24:43,824 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:24:43,824 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:24:43,824 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 14:24:43,824 INFO L794 eck$LassoCheckResult]: Stem: 291#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 287#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~mem208, main_#t~post207, main_#t~mem211, main_#t~post212, main_#t~mem210, main_#t~post209, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 288#L367 assume !(main_~length~0 < 1); 292#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 293#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);call write~int(0, main_~arr~0.base, main_~arr~0.offset, 4);main_~i~0 := 1; 294#L371-3 assume !(main_~i~0 < main_~length~0); 298#L371-4 main_~j~0 := 0; 289#L374-3 assume !!(main_~j~0 < main_~length~0); 290#L375-3 call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 297#L375-1 assume !(main_#t~mem210 > 0);havoc main_#t~mem210; 285#L374-2 main_#t~post209 := main_~j~0;main_~j~0 := 1 + main_#t~post209;havoc main_#t~post209; 286#L374-3 assume !!(main_~j~0 < main_~length~0); 281#L375-3 [2019-12-07 14:24:43,824 INFO L796 eck$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~mem211;havoc main_#t~post212; 281#L375-3 [2019-12-07 14:24:43,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:24:43,825 INFO L82 PathProgramCache]: Analyzing trace with hash -19280312, now seen corresponding path program 2 times [2019-12-07 14:24:43,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:24:43,825 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951473614] [2019-12-07 14:24:43,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:24:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:24:43,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:24:43,860 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951473614] [2019-12-07 14:24:43,860 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965599291] [2019-12-07 14:24:43,860 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/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 [2019-12-07 14:24:43,885 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 14:24:43,885 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 14:24:43,885 INFO L264 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 14:24:43,886 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:24:43,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:24:43,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 14:24:43,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2019-12-07 14:24:43,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643301043] [2019-12-07 14:24:43,915 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 14:24:43,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:24:43,916 INFO L82 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 2 times [2019-12-07 14:24:43,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:24:43,916 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314786496] [2019-12-07 14:24:43,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:24:43,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:24:43,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:24:43,921 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:24:43,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:24:43,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 14:24:43,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2019-12-07 14:24:43,941 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. cyclomatic complexity: 8 Second operand 6 states. [2019-12-07 14:24:43,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:24:43,994 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2019-12-07 14:24:43,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 14:24:43,995 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 41 transitions. [2019-12-07 14:24:43,996 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 14:24:43,997 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 19 states and 22 transitions. [2019-12-07 14:24:43,997 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-12-07 14:24:43,997 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-12-07 14:24:43,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 22 transitions. [2019-12-07 14:24:43,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:24:43,997 INFO L688 BuchiCegarLoop]: Abstraction has 19 states and 22 transitions. [2019-12-07 14:24:43,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 22 transitions. [2019-12-07 14:24:43,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2019-12-07 14:24:43,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-07 14:24:43,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2019-12-07 14:24:43,999 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-12-07 14:24:44,000 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-12-07 14:24:44,000 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 14:24:44,000 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2019-12-07 14:24:44,000 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 14:24:44,001 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:24:44,001 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:24:44,001 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:24:44,001 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 14:24:44,001 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 [2019-12-07 14:24:44,001 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~mem211;havoc main_#t~post212; 388#L375-3 [2019-12-07 14:24:44,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:24:44,002 INFO L82 PathProgramCache]: Analyzing trace with hash -744742010, now seen corresponding path program 1 times [2019-12-07 14:24:44,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:24:44,002 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882762012] [2019-12-07 14:24:44,002 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:24:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:24:44,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:24:44,024 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:24:44,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:24:44,025 INFO L82 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 3 times [2019-12-07 14:24:44,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:24:44,025 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060508084] [2019-12-07 14:24:44,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:24:44,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:24:44,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:24:44,032 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:24:44,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:24:44,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1562468139, now seen corresponding path program 1 times [2019-12-07 14:24:44,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:24:44,032 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185953156] [2019-12-07 14:24:44,032 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:24:44,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:24:44,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:24:44,058 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:24:44,229 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 81 [2019-12-07 14:24:44,271 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:24:44,271 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:24:44,271 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:24:44,271 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:24:44,271 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:24:44,271 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:44,271 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:24:44,271 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:24:44,271 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_and_down_alloca.i_Iteration5_Lasso [2019-12-07 14:24:44,271 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:24:44,271 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:24:44,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:44,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:44,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:44,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:44,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:44,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:44,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:44,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:44,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:44,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:44,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:24:44,516 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:24:44,516 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:44,519 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:24:44,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:24:44,520 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:24:44,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:24:44,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:24:44,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:24:44,521 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:24:44,521 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:24:44,522 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:44,525 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:24:44,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:24:44,527 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:24:44,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:24:44,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:24:44,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:24:44,527 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:24:44,527 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:24:44,528 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:44,531 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 [2019-12-07 14:24:44,533 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:24:44,533 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:24:44,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:24:44,533 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:24:44,534 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:24:44,534 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:24:44,536 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:44,543 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:24:44,544 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:24:44,545 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:24:44,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:24:44,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:24:44,545 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:24:44,545 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:24:44,545 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:24:44,546 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:44,550 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:24:44,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:24:44,551 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:24:44,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:24:44,552 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:24:44,552 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:24:44,552 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:24:44,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:24:44,553 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:44,557 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:24:44,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:24:44,558 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:24:44,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:24:44,559 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:24:44,559 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:24:44,559 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:24:44,559 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:24:44,560 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:44,564 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:24:44,565 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:24:44,565 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:24:44,565 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:24:44,565 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:24:44,567 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:24:44,567 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:24:44,570 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:44,581 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:24:44,582 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:24:44,582 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:24:44,582 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:24:44,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:24:44,584 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:24:44,584 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:24:44,588 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:44,592 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:24:44,593 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:24:44,593 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:24:44,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:24:44,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:24:44,593 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:24:44,594 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:24:44,594 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:24:44,595 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:24:44,598 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 14:24:44,598 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_61b3dd2d-79eb-47b0-b23c-4b341c933fe8/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:24:44,603 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:24:44,603 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 14:24:44,603 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:24:44,603 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 [] [2019-12-07 14:24:44,613 INFO L297 tatePredicateManager]: 5 out of 5 supporting invariants were superfluous and have been removed [2019-12-07 14:24:44,614 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-07 14:24:44,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:24:44,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:24:44,631 INFO L264 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:24:44,631 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:24:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:24:44,635 INFO L264 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 14:24:44,635 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:24:44,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:24:44,643 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 [2019-12-07 14:24:44,643 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand 3 states. [2019-12-07 14:24:44,652 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. [2019-12-07 14:24:44,652 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 [2019-12-07 14:24:44,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 14:24:44,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2019-12-07 14:24:44,652 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 14 letters. Loop has 2 letters. [2019-12-07 14:24:44,652 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:24:44,653 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 14:24:44,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:24:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:24:44,667 INFO L264 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:24:44,668 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:24:44,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:24:44,672 INFO L264 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 14:24:44,672 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:24:44,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:24:44,679 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 [2019-12-07 14:24:44,679 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand 3 states. [2019-12-07 14:24:44,687 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. [2019-12-07 14:24:44,687 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 [2019-12-07 14:24:44,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 14:24:44,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2019-12-07 14:24:44,688 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 14 letters. Loop has 2 letters. [2019-12-07 14:24:44,688 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:24:44,688 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 14:24:44,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:24:44,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:24:44,702 INFO L264 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:24:44,703 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:24:44,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:24:44,707 INFO L264 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 14:24:44,707 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:24:44,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:24:44,715 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 [2019-12-07 14:24:44,715 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand 3 states. [2019-12-07 14:24:44,726 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. [2019-12-07 14:24:44,727 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 [2019-12-07 14:24:44,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 14:24:44,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2019-12-07 14:24:44,727 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 14 letters. Loop has 2 letters. [2019-12-07 14:24:44,728 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:24:44,728 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 16 letters. Loop has 2 letters. [2019-12-07 14:24:44,728 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:24:44,728 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 14 letters. Loop has 4 letters. [2019-12-07 14:24:44,728 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:24:44,728 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 28 transitions. [2019-12-07 14:24:44,729 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 14:24:44,729 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2019-12-07 14:24:44,729 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 14:24:44,729 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 14:24:44,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 14:24:44,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:24:44,729 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:24:44,729 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:24:44,729 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:24:44,729 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-12-07 14:24:44,729 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 14:24:44,729 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 14:24:44,729 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 14:24:44,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 02:24:44 BoogieIcfgContainer [2019-12-07 14:24:44,735 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 14:24:44,735 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:24:44,735 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:24:44,735 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:24:44,736 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:24:42" (3/4) ... [2019-12-07 14:24:44,739 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 14:24:44,739 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:24:44,740 INFO L168 Benchmark]: Toolchain (without parser) took 3247.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 946.2 MB in the beginning and 1.0 GB in the end (delta: -72.2 MB). Peak memory consumption was 77.7 MB. Max. memory is 11.5 GB. [2019-12-07 14:24:44,740 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:24:44,741 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.95 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -136.4 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-12-07 14:24:44,741 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.05 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:24:44,742 INFO L168 Benchmark]: Boogie Preprocessor took 20.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 14:24:44,742 INFO L168 Benchmark]: RCFGBuilder took 181.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-12-07 14:24:44,743 INFO L168 Benchmark]: BuchiAutomizer took 2679.37 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 51.4 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 35.4 MB). Peak memory consumption was 86.8 MB. Max. memory is 11.5 GB. [2019-12-07 14:24:44,743 INFO L168 Benchmark]: Witness Printer took 3.75 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. [2019-12-07 14:24:44,746 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 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 327.95 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -136.4 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.05 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 181.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2679.37 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 51.4 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 35.4 MB). Peak memory consumption was 86.8 MB. Max. memory is 11.5 GB. * Witness Printer took 3.75 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 -4 * i + unknown-#length-unknown[__builtin_alloca(length*sizeof(int))] 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 2.6s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. 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, 0.0s 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: 10ms 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...