./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/count_up_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/count_up_alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/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 09e9c2546f4b38561ae63bf5b67ae3d7f5a4eb9b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 02:58:23,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:58:23,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:58:23,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:58:23,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:58:23,907 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:58:23,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:58:23,912 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:58:23,914 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:58:23,916 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:58:23,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:58:23,919 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:58:23,920 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:58:23,922 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:58:23,923 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:58:23,925 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:58:23,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:58:23,928 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:58:23,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:58:23,934 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:58:23,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:58:23,944 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:58:23,945 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:58:23,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:58:23,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:58:23,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:58:23,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:58:23,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:58:23,956 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:58:23,957 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:58:23,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:58:23,959 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:58:23,961 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:58:23,963 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:58:23,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:58:23,964 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:58:23,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:58:23,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:58:23,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:58:23,967 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:58:23,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:58:23,971 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-28 02:58:24,024 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:58:24,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:58:24,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:58:24,026 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:58:24,026 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:58:24,026 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 02:58:24,026 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 02:58:24,027 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 02:58:24,027 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 02:58:24,027 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 02:58:24,030 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 02:58:24,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:58:24,031 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 02:58:24,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:58:24,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:58:24,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 02:58:24,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 02:58:24,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 02:58:24,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:58:24,032 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 02:58:24,033 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:58:24,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 02:58:24,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:58:24,034 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:58:24,034 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 02:58:24,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:58:24,035 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:58:24,035 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:58:24,035 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 02:58:24,037 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 02:58:24,038 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09e9c2546f4b38561ae63bf5b67ae3d7f5a4eb9b [2020-11-28 02:58:24,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:58:24,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:58:24,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:58:24,398 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:58:24,399 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:58:24,400 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/bin/uautomizer/../../sv-benchmarks/c/termination-15/count_up_alloca.i [2020-11-28 02:58:24,495 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/bin/uautomizer/data/f0345ff19/7713182fc3a34e6983bcd05694f951be/FLAGe5dbd6a2d [2020-11-28 02:58:25,042 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:58:25,043 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/sv-benchmarks/c/termination-15/count_up_alloca.i [2020-11-28 02:58:25,053 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/bin/uautomizer/data/f0345ff19/7713182fc3a34e6983bcd05694f951be/FLAGe5dbd6a2d [2020-11-28 02:58:25,343 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/bin/uautomizer/data/f0345ff19/7713182fc3a34e6983bcd05694f951be [2020-11-28 02:58:25,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:58:25,347 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:58:25,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:58:25,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:58:25,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:58:25,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:58:25" (1/1) ... [2020-11-28 02:58:25,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48676db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:25, skipping insertion in model container [2020-11-28 02:58:25,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:58:25" (1/1) ... [2020-11-28 02:58:25,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:58:25,403 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:58:25,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:58:25,758 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:58:25,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:58:25,958 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:58:25,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:25 WrapperNode [2020-11-28 02:58:25,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:58:25,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:58:25,960 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:58:25,960 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:58:25,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:25" (1/1) ... [2020-11-28 02:58:25,996 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:25" (1/1) ... [2020-11-28 02:58:26,025 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:58:26,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:58:26,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:58:26,027 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:58:26,036 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:25" (1/1) ... [2020-11-28 02:58:26,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:25" (1/1) ... [2020-11-28 02:58:26,053 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:25" (1/1) ... [2020-11-28 02:58:26,053 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:25" (1/1) ... [2020-11-28 02:58:26,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:25" (1/1) ... [2020-11-28 02:58:26,062 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:25" (1/1) ... [2020-11-28 02:58:26,064 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:25" (1/1) ... [2020-11-28 02:58:26,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:58:26,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:58:26,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:58:26,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:58:26,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/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 [2020-11-28 02:58:26,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 02:58:26,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 02:58:26,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:58:26,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 02:58:26,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:58:26,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:58:26,418 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:58:26,419 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-28 02:58:26,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:58:26 BoogieIcfgContainer [2020-11-28 02:58:26,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:58:26,422 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 02:58:26,422 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 02:58:26,425 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 02:58:26,440 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:58:26,440 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 02:58:25" (1/3) ... [2020-11-28 02:58:26,442 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b7d8f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:58:26, skipping insertion in model container [2020-11-28 02:58:26,442 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:58:26,442 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:25" (2/3) ... [2020-11-28 02:58:26,443 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b7d8f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:58:26, skipping insertion in model container [2020-11-28 02:58:26,443 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:58:26,443 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:58:26" (3/3) ... [2020-11-28 02:58:26,444 INFO L373 chiAutomizerObserver]: Analyzing ICFG count_up_alloca.i [2020-11-28 02:58:26,491 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 02:58:26,491 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 02:58:26,491 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 02:58:26,491 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:58:26,492 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:58:26,492 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 02:58:26,492 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:58:26,492 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 02:58:26,507 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-11-28 02:58:26,528 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-11-28 02:58:26,529 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:58:26,529 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:58:26,536 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-28 02:58:26,536 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-28 02:58:26,536 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 02:58:26,537 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-11-28 02:58:26,539 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-11-28 02:58:26,539 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:58:26,539 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:58:26,540 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-28 02:58:26,540 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-28 02:58:26,548 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 15#L369true assume !(main_~length~0 < 1); 20#L369-2true call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 12#L371true assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 16#L372-3true [2020-11-28 02:58:26,549 INFO L796 eck$LassoCheckResult]: Loop: 16#L372-3true assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 7#L374true assume main_~val~0 > main_~limit~0;main_~val~0 := main_~limit~0; 10#L374-2true call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 13#L372-2true main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 16#L372-3true [2020-11-28 02:58:26,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:26,556 INFO L82 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2020-11-28 02:58:26,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:26,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67717822] [2020-11-28 02:58:26,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:26,689 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:26,704 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:26,727 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:26,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:26,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1603878, now seen corresponding path program 1 times [2020-11-28 02:58:26,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:26,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859852346] [2020-11-28 02:58:26,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:26,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:26,759 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:26,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:26,797 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:26,801 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:26,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:26,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1182970350, now seen corresponding path program 1 times [2020-11-28 02:58:26,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:26,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571144651] [2020-11-28 02:58:26,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:26,849 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:26,881 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:26,900 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:27,206 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2020-11-28 02:58:27,283 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 02:58:27,284 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 02:58:27,284 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 02:58:27,284 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 02:58:27,285 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 02:58:27,285 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:27,285 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 02:58:27,285 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 02:58:27,285 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration1_Lasso [2020-11-28 02:58:27,286 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 02:58:27,286 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 02:58:27,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:27,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:27,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:27,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:27,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:27,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:27,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:27,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:27,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:27,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:27,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:27,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:27,859 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 02:58:27,866 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/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) [2020-11-28 02:58:27,881 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 [2020-11-28 02:58:27,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:27,884 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:27,884 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:27,884 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:27,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:27,888 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:27,888 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:27,892 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/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 [2020-11-28 02:58:27,938 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 [2020-11-28 02:58:27,940 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:27,940 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:27,940 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:27,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:27,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:27,942 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:27,942 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:27,946 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/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 [2020-11-28 02:58:27,978 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 [2020-11-28 02:58:27,980 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:27,980 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:27,981 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:27,981 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:27,981 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:27,982 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:27,982 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:27,988 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/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) [2020-11-28 02:58:28,031 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 [2020-11-28 02:58:28,033 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:28,033 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:28,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:28,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:28,034 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:28,035 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:28,035 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:28,037 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/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) [2020-11-28 02:58:28,078 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 [2020-11-28 02:58:28,080 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:28,081 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:28,081 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:28,081 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:28,085 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:28,085 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:28,090 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/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) [2020-11-28 02:58:28,137 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:28,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:28,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:28,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:28,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:28,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:28,141 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:28,141 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:28,143 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/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) [2020-11-28 02:58:28,186 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 [2020-11-28 02:58:28,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:28,188 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:28,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:28,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:28,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:28,190 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:28,190 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:28,211 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/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) [2020-11-28 02:58:28,253 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 [2020-11-28 02:58:28,256 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:28,256 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:28,256 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:28,257 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:28,279 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:28,279 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:28,305 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 02:58:28,407 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2020-11-28 02:58:28,408 INFO L444 ModelExtractionUtils]: 5 out of 22 variables were initially zero. Simplification set additionally 14 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/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) [2020-11-28 02:58:28,448 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:28,452 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 02:58:28,452 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 02:58:28,452 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~length~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~length~0 Supporting invariants [] [2020-11-28 02:58:28,499 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2020-11-28 02:58:28,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:28,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:28,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 02:58:28,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:28,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:28,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 02:58:28,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:28,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:58:28,607 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 [2020-11-28 02:58:28,608 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states. Second operand 3 states. [2020-11-28 02:58:28,679 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states.. Second operand 3 states. Result 43 states and 60 transitions. Complement of second has 7 states. [2020-11-28 02:58:28,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-28 02:58:28,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 02:58:28,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 40 transitions. [2020-11-28 02:58:28,686 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 40 transitions. Stem has 5 letters. Loop has 4 letters. [2020-11-28 02:58:28,687 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:28,687 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 40 transitions. Stem has 9 letters. Loop has 4 letters. [2020-11-28 02:58:28,687 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:28,687 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 40 transitions. Stem has 5 letters. Loop has 8 letters. [2020-11-28 02:58:28,688 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:28,688 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 60 transitions. [2020-11-28 02:58:28,698 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-28 02:58:28,703 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 15 states and 20 transitions. [2020-11-28 02:58:28,704 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-11-28 02:58:28,705 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-11-28 02:58:28,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2020-11-28 02:58:28,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:58:28,706 INFO L691 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2020-11-28 02:58:28,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2020-11-28 02:58:28,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-11-28 02:58:28,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-28 02:58:28,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2020-11-28 02:58:28,733 INFO L714 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2020-11-28 02:58:28,733 INFO L594 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2020-11-28 02:58:28,733 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 02:58:28,733 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2020-11-28 02:58:28,736 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-28 02:58:28,736 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:58:28,736 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:58:28,737 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:58:28,737 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-28 02:58:28,737 INFO L794 eck$LassoCheckResult]: Stem: 136#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 134#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 135#L369 assume !(main_~length~0 < 1); 140#L369-2 call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 137#L371 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 138#L372-3 assume !(main_~i~0 < main_~length~0); 141#L372-4 main_~j~0 := 0; 130#L379-3 [2020-11-28 02:58:28,738 INFO L796 eck$LassoCheckResult]: Loop: 130#L379-3 assume !!(main_~j~0 < main_~length~0); 127#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 128#L380-1 assume !(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211; 129#L379-2 main_#t~post210 := main_~j~0;main_~j~0 := 1 + main_#t~post210;havoc main_#t~post210; 130#L379-3 [2020-11-28 02:58:28,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:28,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815512, now seen corresponding path program 1 times [2020-11-28 02:58:28,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:28,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106270692] [2020-11-28 02:58:28,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:28,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:58:28,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106270692] [2020-11-28 02:58:28,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:58:28,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 02:58:28,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155229960] [2020-11-28 02:58:28,835 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 02:58:28,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:28,836 INFO L82 PathProgramCache]: Analyzing trace with hash 2252300, now seen corresponding path program 1 times [2020-11-28 02:58:28,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:28,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113298206] [2020-11-28 02:58:28,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:28,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:28,842 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:28,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:28,847 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:28,850 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:28,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:58:28,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:58:28,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:58:28,898 INFO L87 Difference]: Start difference. First operand 15 states and 20 transitions. cyclomatic complexity: 7 Second operand 4 states. [2020-11-28 02:58:28,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:58:28,943 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2020-11-28 02:58:28,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 02:58:28,944 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2020-11-28 02:58:28,945 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-28 02:58:28,946 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 23 transitions. [2020-11-28 02:58:28,946 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-11-28 02:58:28,946 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-11-28 02:58:28,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2020-11-28 02:58:28,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:58:28,947 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2020-11-28 02:58:28,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2020-11-28 02:58:28,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2020-11-28 02:58:28,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-28 02:58:28,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2020-11-28 02:58:28,949 INFO L714 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2020-11-28 02:58:28,949 INFO L594 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2020-11-28 02:58:28,949 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-28 02:58:28,949 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 19 transitions. [2020-11-28 02:58:28,950 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-28 02:58:28,950 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:58:28,950 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:58:28,951 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:58:28,951 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-28 02:58:28,951 INFO L794 eck$LassoCheckResult]: Stem: 176#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 174#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 175#L369 assume !(main_~length~0 < 1); 180#L369-2 call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 177#L371 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 178#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 171#L374 assume !(main_~val~0 > main_~limit~0); 172#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 173#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 179#L372-3 assume !(main_~i~0 < main_~length~0); 181#L372-4 main_~j~0 := 0; 170#L379-3 [2020-11-28 02:58:28,951 INFO L796 eck$LassoCheckResult]: Loop: 170#L379-3 assume !!(main_~j~0 < main_~length~0); 167#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 168#L380-1 assume !(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211; 169#L379-2 main_#t~post210 := main_~j~0;main_~j~0 := 1 + main_#t~post210;havoc main_#t~post210; 170#L379-3 [2020-11-28 02:58:28,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:28,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1329979393, now seen corresponding path program 1 times [2020-11-28 02:58:28,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:28,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602408413] [2020-11-28 02:58:28,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:28,964 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:28,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:28,977 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:28,986 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:28,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:28,987 INFO L82 PathProgramCache]: Analyzing trace with hash 2252300, now seen corresponding path program 2 times [2020-11-28 02:58:28,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:28,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449222437] [2020-11-28 02:58:28,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:28,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:28,993 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:29,003 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:29,007 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:29,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:29,008 INFO L82 PathProgramCache]: Analyzing trace with hash -2035265782, now seen corresponding path program 1 times [2020-11-28 02:58:29,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:29,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419010015] [2020-11-28 02:58:29,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:29,044 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:29,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:29,083 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:29,089 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:29,412 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2020-11-28 02:58:29,504 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 02:58:29,504 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 02:58:29,504 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 02:58:29,504 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 02:58:29,504 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 02:58:29,504 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:29,504 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 02:58:29,505 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 02:58:29,505 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration3_Lasso [2020-11-28 02:58:29,505 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 02:58:29,505 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 02:58:29,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:29,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:29,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:29,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:29,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:29,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:29,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:29,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:29,720 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-11-28 02:58:29,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:29,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:29,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:29,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:30,113 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 02:58:30,113 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/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 [2020-11-28 02:58:30,121 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 [2020-11-28 02:58:30,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:30,123 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:30,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:30,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:30,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:30,124 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:30,124 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:30,126 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/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 [2020-11-28 02:58:30,175 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 [2020-11-28 02:58:30,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:30,177 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:30,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:30,177 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:30,177 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:30,178 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:30,178 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:30,183 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/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 [2020-11-28 02:58:30,208 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 [2020-11-28 02:58:30,210 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:30,210 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:30,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:30,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:30,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:30,211 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:30,211 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:30,213 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/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 [2020-11-28 02:58:30,242 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 [2020-11-28 02:58:30,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:30,253 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:30,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:30,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:30,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:30,254 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:30,254 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:30,256 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/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 [2020-11-28 02:58:30,284 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 [2020-11-28 02:58:30,286 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:30,286 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:30,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:30,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:30,287 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:30,287 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:30,287 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:30,289 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/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 [2020-11-28 02:58:30,314 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 [2020-11-28 02:58:30,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:30,316 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:30,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:30,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:30,323 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:30,324 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:30,335 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/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 [2020-11-28 02:58:30,382 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 [2020-11-28 02:58:30,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:30,384 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:30,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:30,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:30,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:30,386 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:30,386 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:30,396 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/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) [2020-11-28 02:58:30,454 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 [2020-11-28 02:58:30,456 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:30,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:30,457 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:30,457 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:30,470 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:30,470 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:30,486 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 02:58:30,511 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-11-28 02:58:30,511 INFO L444 ModelExtractionUtils]: 14 out of 25 variables were initially zero. Simplification set additionally 7 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/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) [2020-11-28 02:58:30,519 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:30,524 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 02:58:30,524 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 02:58:30,524 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~arr~0.offset, ULTIMATE.start_main_~j~0, v_rep(select #length ULTIMATE.start_main_~arr~0.base)_2) = -1*ULTIMATE.start_main_~arr~0.offset - 4*ULTIMATE.start_main_~j~0 + 1*v_rep(select #length ULTIMATE.start_main_~arr~0.base)_2 Supporting invariants [] [2020-11-28 02:58:30,566 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2020-11-28 02:58:30,568 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 02:58:30,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:30,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:30,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 02:58:30,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:30,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:30,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 02:58:30,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:30,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:58:30,637 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 [2020-11-28 02:58:30,637 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 6 Second operand 4 states. [2020-11-28 02:58:30,666 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 6. Second operand 4 states. Result 21 states and 27 transitions. Complement of second has 6 states. [2020-11-28 02:58:30,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-28 02:58:30,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 02:58:30,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2020-11-28 02:58:30,667 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 11 letters. Loop has 4 letters. [2020-11-28 02:58:30,668 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:30,668 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 15 letters. Loop has 4 letters. [2020-11-28 02:58:30,668 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:30,668 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 11 letters. Loop has 8 letters. [2020-11-28 02:58:30,668 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:30,669 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 27 transitions. [2020-11-28 02:58:30,670 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 02:58:30,670 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 20 states and 26 transitions. [2020-11-28 02:58:30,670 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-11-28 02:58:30,670 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-11-28 02:58:30,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 26 transitions. [2020-11-28 02:58:30,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:58:30,671 INFO L691 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2020-11-28 02:58:30,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 26 transitions. [2020-11-28 02:58:30,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2020-11-28 02:58:30,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-28 02:58:30,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2020-11-28 02:58:30,673 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2020-11-28 02:58:30,673 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2020-11-28 02:58:30,673 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-28 02:58:30,673 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2020-11-28 02:58:30,674 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 02:58:30,674 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:58:30,674 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:58:30,674 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:58:30,674 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 02:58:30,675 INFO L794 eck$LassoCheckResult]: Stem: 297#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 293#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 294#L369 assume !(main_~length~0 < 1); 300#L369-2 call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 295#L371 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 296#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 290#L374 assume !(main_~val~0 > main_~limit~0); 291#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 292#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 298#L372-3 assume !(main_~i~0 < main_~length~0); 299#L372-4 main_~j~0 := 0; 289#L379-3 assume !!(main_~j~0 < main_~length~0); 283#L380-3 [2020-11-28 02:58:30,675 INFO L796 eck$LassoCheckResult]: Loop: 283#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 284#L380-1 assume !!(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211;call main_#t~mem212 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post213 := main_#t~mem212;call write~int(1 + main_#t~post213, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~post213;havoc main_#t~mem212; 283#L380-3 [2020-11-28 02:58:30,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:30,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1720311820, now seen corresponding path program 1 times [2020-11-28 02:58:30,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:30,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691479416] [2020-11-28 02:58:30,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:30,688 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:30,697 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:30,700 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:30,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:30,701 INFO L82 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 1 times [2020-11-28 02:58:30,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:30,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460797069] [2020-11-28 02:58:30,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:30,707 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:30,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:30,711 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:30,712 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:30,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:30,713 INFO L82 PathProgramCache]: Analyzing trace with hash -342748399, now seen corresponding path program 1 times [2020-11-28 02:58:30,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:30,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448825690] [2020-11-28 02:58:30,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:30,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:30,725 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:30,800 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:30,804 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:31,013 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2020-11-28 02:58:31,068 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 02:58:31,068 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 02:58:31,068 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 02:58:31,068 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 02:58:31,069 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 02:58:31,069 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:31,069 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 02:58:31,069 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 02:58:31,069 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration4_Lasso [2020-11-28 02:58:31,069 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 02:58:31,069 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 02:58:31,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:31,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:31,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:31,252 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-11-28 02:58:31,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:31,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:31,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:31,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:31,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:31,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:31,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:31,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:31,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:31,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:31,716 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 02:58:31,717 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/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 [2020-11-28 02:58:31,732 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 [2020-11-28 02:58:31,734 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:31,735 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:31,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:31,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:31,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:31,736 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:31,736 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:31,738 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:58:31,784 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 [2020-11-28 02:58:31,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:31,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:31,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:31,787 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:31,789 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:31,789 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:31,794 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/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) [2020-11-28 02:58:31,836 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 [2020-11-28 02:58:31,838 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:31,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:31,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:31,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:31,853 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:31,853 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:31,867 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 02:58:31,896 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2020-11-28 02:58:31,896 INFO L444 ModelExtractionUtils]: 3 out of 16 variables were initially zero. Simplification set additionally 10 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/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) [2020-11-28 02:58:31,900 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:31,904 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 02:58:31,904 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 02:58:31,905 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~limit~0, v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) (+ ULTIMATE.start_main_~arr~0.offset (* ULTIMATE.start_main_~i~0 4) (- 4)))_1) = 1*ULTIMATE.start_main_~limit~0 - 1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) (+ ULTIMATE.start_main_~arr~0.offset (* ULTIMATE.start_main_~i~0 4) (- 4)))_1 Supporting invariants [] [2020-11-28 02:58:31,955 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2020-11-28 02:58:31,965 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 02:58:32,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:32,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:32,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 02:58:32,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:32,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:32,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 02:58:32,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:32,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:58:32,171 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2020-11-28 02:58:32,172 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 9 Second operand 6 states. [2020-11-28 02:58:32,420 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 9. Second operand 6 states. Result 39 states and 51 transitions. Complement of second has 11 states. [2020-11-28 02:58:32,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 4 stem states 2 non-accepting loop states 2 accepting loop states [2020-11-28 02:58:32,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-28 02:58:32,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 30 transitions. [2020-11-28 02:58:32,422 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 30 transitions. Stem has 12 letters. Loop has 2 letters. [2020-11-28 02:58:32,422 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:32,422 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 30 transitions. Stem has 14 letters. Loop has 2 letters. [2020-11-28 02:58:32,423 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:32,423 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 30 transitions. Stem has 12 letters. Loop has 4 letters. [2020-11-28 02:58:32,423 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:32,423 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 51 transitions. [2020-11-28 02:58:32,425 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 02:58:32,426 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 34 states and 44 transitions. [2020-11-28 02:58:32,426 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-11-28 02:58:32,426 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-11-28 02:58:32,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 44 transitions. [2020-11-28 02:58:32,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:58:32,426 INFO L691 BuchiCegarLoop]: Abstraction has 34 states and 44 transitions. [2020-11-28 02:58:32,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 44 transitions. [2020-11-28 02:58:32,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 27. [2020-11-28 02:58:32,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-28 02:58:32,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2020-11-28 02:58:32,430 INFO L714 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-11-28 02:58:32,430 INFO L594 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-11-28 02:58:32,430 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-28 02:58:32,430 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 36 transitions. [2020-11-28 02:58:32,431 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 02:58:32,438 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:58:32,438 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:58:32,439 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:58:32,439 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 02:58:32,440 INFO L794 eck$LassoCheckResult]: Stem: 454#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 452#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 453#L369 assume !(main_~length~0 < 1); 461#L369-2 call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 455#L371 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 456#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 459#L374 assume !(main_~val~0 > main_~limit~0); 466#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 457#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 458#L372-3 assume !(main_~i~0 < main_~length~0); 460#L372-4 main_~j~0 := 0; 447#L379-3 assume !!(main_~j~0 < main_~length~0); 448#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 467#L380-1 assume !(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211; 445#L379-2 main_#t~post210 := main_~j~0;main_~j~0 := 1 + main_#t~post210;havoc main_#t~post210; 446#L379-3 assume !!(main_~j~0 < main_~length~0); 441#L380-3 [2020-11-28 02:58:32,440 INFO L796 eck$LassoCheckResult]: Loop: 441#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 442#L380-1 assume !!(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211;call main_#t~mem212 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post213 := main_#t~mem212;call write~int(1 + main_#t~post213, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~post213;havoc main_#t~mem212; 441#L380-3 [2020-11-28 02:58:32,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:32,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1331270241, now seen corresponding path program 2 times [2020-11-28 02:58:32,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:32,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364328717] [2020-11-28 02:58:32,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:32,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:32,535 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:58:32,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364328717] [2020-11-28 02:58:32,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090401128] [2020-11-28 02:58:32,536 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/bin/uautomizer/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:58:32,585 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-28 02:58:32,585 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-28 02:58:32,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 02:58:32,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:32,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:58:32,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 02:58:32,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2020-11-28 02:58:32,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407104496] [2020-11-28 02:58:32,682 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 02:58:32,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:32,683 INFO L82 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 2 times [2020-11-28 02:58:32,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:32,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047051637] [2020-11-28 02:58:32,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:32,696 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:32,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:32,701 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:32,702 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:32,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:58:32,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-28 02:58:32,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-11-28 02:58:32,736 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. cyclomatic complexity: 13 Second operand 10 states. [2020-11-28 02:58:32,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:58:32,878 INFO L93 Difference]: Finished difference Result 49 states and 64 transitions. [2020-11-28 02:58:32,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-28 02:58:32,878 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 64 transitions. [2020-11-28 02:58:32,880 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-28 02:58:32,881 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 40 states and 51 transitions. [2020-11-28 02:58:32,881 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2020-11-28 02:58:32,881 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-11-28 02:58:32,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 51 transitions. [2020-11-28 02:58:32,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:58:32,881 INFO L691 BuchiCegarLoop]: Abstraction has 40 states and 51 transitions. [2020-11-28 02:58:32,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 51 transitions. [2020-11-28 02:58:32,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 35. [2020-11-28 02:58:32,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-28 02:58:32,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2020-11-28 02:58:32,886 INFO L714 BuchiCegarLoop]: Abstraction has 35 states and 45 transitions. [2020-11-28 02:58:32,886 INFO L594 BuchiCegarLoop]: Abstraction has 35 states and 45 transitions. [2020-11-28 02:58:32,886 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-28 02:58:32,886 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 45 transitions. [2020-11-28 02:58:32,888 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 02:58:32,888 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:58:32,888 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:58:32,890 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:58:32,890 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 02:58:32,890 INFO L794 eck$LassoCheckResult]: Stem: 597#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 594#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 595#L369 assume main_~length~0 < 1;main_~length~0 := 1; 602#L369-2 call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 598#L371 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 599#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 617#L374 assume !(main_~val~0 > main_~limit~0); 616#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 615#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 614#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 611#L374 assume !(main_~val~0 > main_~limit~0); 613#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 612#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 610#L372-3 assume !(main_~i~0 < main_~length~0); 606#L372-4 main_~j~0 := 0; 591#L379-3 assume !!(main_~j~0 < main_~length~0); 585#L380-3 [2020-11-28 02:58:32,890 INFO L796 eck$LassoCheckResult]: Loop: 585#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 586#L380-1 assume !!(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211;call main_#t~mem212 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post213 := main_#t~mem212;call write~int(1 + main_#t~post213, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~post213;havoc main_#t~mem212; 585#L380-3 [2020-11-28 02:58:32,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:32,891 INFO L82 PathProgramCache]: Analyzing trace with hash -420071865, now seen corresponding path program 1 times [2020-11-28 02:58:32,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:32,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430327075] [2020-11-28 02:58:32,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:32,959 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:58:32,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430327075] [2020-11-28 02:58:32,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752969122] [2020-11-28 02:58:32,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/bin/uautomizer/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:58:32,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:32,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 02:58:32,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:33,066 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:58:33,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 02:58:33,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2020-11-28 02:58:33,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563663769] [2020-11-28 02:58:33,067 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 02:58:33,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:33,068 INFO L82 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 3 times [2020-11-28 02:58:33,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:33,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062275054] [2020-11-28 02:58:33,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:33,073 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:33,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:33,084 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:33,088 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:33,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:58:33,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:58:33,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 02:58:33,163 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. cyclomatic complexity: 14 Second operand 5 states. [2020-11-28 02:58:33,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:58:33,200 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2020-11-28 02:58:33,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 02:58:33,201 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2020-11-28 02:58:33,202 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 02:58:33,202 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 22 states and 28 transitions. [2020-11-28 02:58:33,202 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-11-28 02:58:33,202 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-11-28 02:58:33,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 28 transitions. [2020-11-28 02:58:33,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:58:33,202 INFO L691 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2020-11-28 02:58:33,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 28 transitions. [2020-11-28 02:58:33,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-28 02:58:33,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-28 02:58:33,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2020-11-28 02:58:33,204 INFO L714 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2020-11-28 02:58:33,204 INFO L594 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2020-11-28 02:58:33,205 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-11-28 02:58:33,205 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 28 transitions. [2020-11-28 02:58:33,205 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 02:58:33,205 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:58:33,205 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:58:33,206 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:58:33,206 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 02:58:33,206 INFO L794 eck$LassoCheckResult]: Stem: 716#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 713#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 714#L369 assume !(main_~length~0 < 1); 720#L369-2 call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 717#L371 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 718#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 721#L374 assume !(main_~val~0 > main_~limit~0); 725#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 724#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 722#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 711#L374 assume !(main_~val~0 > main_~limit~0); 712#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 715#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 719#L372-3 assume !(main_~i~0 < main_~length~0); 723#L372-4 main_~j~0 := 0; 710#L379-3 assume !!(main_~j~0 < main_~length~0); 704#L380-3 [2020-11-28 02:58:33,206 INFO L796 eck$LassoCheckResult]: Loop: 704#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 705#L380-1 assume !!(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211;call main_#t~mem212 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post213 := main_#t~mem212;call write~int(1 + main_#t~post213, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~post213;havoc main_#t~mem212; 704#L380-3 [2020-11-28 02:58:33,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:33,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1431189115, now seen corresponding path program 2 times [2020-11-28 02:58:33,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:33,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173572714] [2020-11-28 02:58:33,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:33,245 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:33,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:33,261 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:33,268 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:33,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:33,269 INFO L82 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 4 times [2020-11-28 02:58:33,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:33,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929025887] [2020-11-28 02:58:33,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:33,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:33,276 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:33,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:33,282 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:33,283 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:33,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:33,285 INFO L82 PathProgramCache]: Analyzing trace with hash -983203254, now seen corresponding path program 2 times [2020-11-28 02:58:33,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:33,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141399827] [2020-11-28 02:58:33,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:33,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:33,315 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:33,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:33,342 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:33,347 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:33,616 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 79 [2020-11-28 02:58:33,684 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 02:58:33,684 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 02:58:33,684 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 02:58:33,684 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 02:58:33,684 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 02:58:33,684 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:33,684 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 02:58:33,684 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 02:58:33,684 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration7_Lasso [2020-11-28 02:58:33,684 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 02:58:33,684 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 02:58:33,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:33,846 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-11-28 02:58:33,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:33,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:33,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:33,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:33,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:33,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:33,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:33,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:33,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:33,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:33,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:34,191 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 02:58:34,191 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/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 [2020-11-28 02:58:34,196 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 [2020-11-28 02:58:34,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:34,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:34,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:34,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:34,206 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:34,206 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:34,217 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/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 [2020-11-28 02:58:34,244 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 [2020-11-28 02:58:34,246 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:34,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:34,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:34,247 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:34,250 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:34,250 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:34,255 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/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) [2020-11-28 02:58:34,285 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:34,287 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:34,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:34,287 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:34,287 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:34,290 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:34,291 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:34,304 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 02:58:34,311 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-11-28 02:58:34,311 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/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 [2020-11-28 02:58:34,314 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 02:58:34,317 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 02:58:34,317 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 02:58:34,317 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~limit~0, v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) (+ (* ULTIMATE.start_main_~j~0 4) ULTIMATE.start_main_~arr~0.offset))_3) = 1*ULTIMATE.start_main_~limit~0 - 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))_3 Supporting invariants [] [2020-11-28 02:58:34,349 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2020-11-28 02:58:34,350 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 02:58:34,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:34,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:34,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 02:58:34,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:34,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 02:58:34,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:34,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:58:34,433 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 [2020-11-28 02:58:34,433 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 28 transitions. cyclomatic complexity: 9 Second operand 3 states. [2020-11-28 02:58:34,455 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 28 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 31 states and 39 transitions. Complement of second has 7 states. [2020-11-28 02:58:34,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-28 02:58:34,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 02:58:34,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2020-11-28 02:58:34,457 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 2 letters. [2020-11-28 02:58:34,457 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:34,457 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 18 letters. Loop has 2 letters. [2020-11-28 02:58:34,457 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:34,458 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 4 letters. [2020-11-28 02:58:34,458 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:34,458 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2020-11-28 02:58:34,459 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 02:58:34,460 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 26 states and 32 transitions. [2020-11-28 02:58:34,460 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-11-28 02:58:34,460 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-11-28 02:58:34,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 32 transitions. [2020-11-28 02:58:34,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:58:34,460 INFO L691 BuchiCegarLoop]: Abstraction has 26 states and 32 transitions. [2020-11-28 02:58:34,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 32 transitions. [2020-11-28 02:58:34,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2020-11-28 02:58:34,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-28 02:58:34,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2020-11-28 02:58:34,463 INFO L714 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2020-11-28 02:58:34,463 INFO L594 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2020-11-28 02:58:34,463 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-11-28 02:58:34,463 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 31 transitions. [2020-11-28 02:58:34,464 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 02:58:34,464 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:58:34,464 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:58:34,465 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:58:34,465 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 02:58:34,465 INFO L794 eck$LassoCheckResult]: Stem: 860#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 857#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 858#L369 assume !(main_~length~0 < 1); 864#L369-2 call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 861#L371 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 862#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 855#L374 assume !(main_~val~0 > main_~limit~0); 856#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 859#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 863#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 865#L374 assume !(main_~val~0 > main_~limit~0); 870#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 869#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 868#L372-3 assume !(main_~i~0 < main_~length~0); 867#L372-4 main_~j~0 := 0; 853#L379-3 assume !!(main_~j~0 < main_~length~0); 854#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 871#L380-1 assume !(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211; 847#L379-2 main_#t~post210 := main_~j~0;main_~j~0 := 1 + main_#t~post210;havoc main_#t~post210; 848#L379-3 assume !!(main_~j~0 < main_~length~0); 849#L380-3 [2020-11-28 02:58:34,466 INFO L796 eck$LassoCheckResult]: Loop: 849#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 850#L380-1 assume !!(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211;call main_#t~mem212 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post213 := main_#t~mem212;call write~int(1 + main_#t~post213, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~post213;havoc main_#t~mem212; 849#L380-3 [2020-11-28 02:58:34,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:34,466 INFO L82 PathProgramCache]: Analyzing trace with hash 34477914, now seen corresponding path program 3 times [2020-11-28 02:58:34,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:34,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240163343] [2020-11-28 02:58:34,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:34,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:34,493 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:34,515 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:34,519 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:34,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:34,520 INFO L82 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 5 times [2020-11-28 02:58:34,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:34,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514374425] [2020-11-28 02:58:34,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:34,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:34,527 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:34,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:34,534 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:34,536 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:34,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:34,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1226461473, now seen corresponding path program 1 times [2020-11-28 02:58:34,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:34,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951936419] [2020-11-28 02:58:34,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:34,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:34,576 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:34,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:34,592 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:34,599 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:34,973 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 92 [2020-11-28 02:58:35,092 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 02:58:35,092 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 02:58:35,092 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 02:58:35,092 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 02:58:35,092 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 02:58:35,092 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:35,092 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 02:58:35,093 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 02:58:35,093 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration8_Lasso [2020-11-28 02:58:35,093 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 02:58:35,093 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 02:58:35,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:35,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:35,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:35,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:35,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:35,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:35,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:35,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:35,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:35,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:35,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:35,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:35,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:35,471 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 02:58:35,472 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/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 [2020-11-28 02:58:35,475 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 [2020-11-28 02:58:35,476 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:35,476 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:35,476 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:35,476 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:35,476 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:35,477 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:35,477 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:35,478 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/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 [2020-11-28 02:58:35,503 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 [2020-11-28 02:58:35,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:35,504 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:35,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:35,504 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:35,504 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:35,505 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:35,505 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:35,506 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:35,536 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 [2020-11-28 02:58:35,538 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:35,538 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:35,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:35,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:35,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:35,539 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:35,539 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:35,540 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:35,562 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 [2020-11-28 02:58:35,563 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:35,563 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:35,563 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:35,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:35,565 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:35,565 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:35,569 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:35,592 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 [2020-11-28 02:58:35,593 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:35,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:35,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:35,593 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:35,595 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:35,595 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:35,611 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:35,634 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 [2020-11-28 02:58:35,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:35,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:35,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:35,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:35,640 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:35,640 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:35,668 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:35,708 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 [2020-11-28 02:58:35,709 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:35,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:35,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:35,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:35,713 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:35,713 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:35,719 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 02:58:35,733 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-11-28 02:58:35,733 INFO L444 ModelExtractionUtils]: 10 out of 16 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_075466cb-e6cd-4a7a-a62f-a85369abb277/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:35,736 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 02:58:35,738 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 02:58:35,739 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 02:58:35,739 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~limit~0, v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) (+ (* ULTIMATE.start_main_~j~0 4) ULTIMATE.start_main_~arr~0.offset))_4) = 1*ULTIMATE.start_main_~limit~0 - 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))_4 Supporting invariants [] [2020-11-28 02:58:35,782 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2020-11-28 02:58:35,784 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 02:58:35,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:35,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 02:58:35,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:35,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 02:58:35,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:35,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:58:35,873 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 [2020-11-28 02:58:35,873 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand 3 states. [2020-11-28 02:58:35,891 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 29 states and 35 transitions. Complement of second has 7 states. [2020-11-28 02:58:35,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-28 02:58:35,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 02:58:35,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2020-11-28 02:58:35,895 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 20 letters. Loop has 2 letters. [2020-11-28 02:58:35,895 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:35,895 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-28 02:58:35,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:35,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 02:58:35,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:35,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 02:58:35,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:35,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:58:35,961 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 [2020-11-28 02:58:35,961 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand 3 states. [2020-11-28 02:58:35,975 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 29 states and 35 transitions. Complement of second has 7 states. [2020-11-28 02:58:35,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-28 02:58:35,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 02:58:35,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2020-11-28 02:58:35,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 20 letters. Loop has 2 letters. [2020-11-28 02:58:35,976 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:35,976 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-28 02:58:36,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:36,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:36,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 02:58:36,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:36,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 02:58:36,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:36,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:58:36,050 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 [2020-11-28 02:58:36,050 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand 3 states. [2020-11-28 02:58:36,073 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 31 states and 39 transitions. Complement of second has 6 states. [2020-11-28 02:58:36,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-28 02:58:36,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 02:58:36,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2020-11-28 02:58:36,075 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 20 letters. Loop has 2 letters. [2020-11-28 02:58:36,075 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:36,075 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 22 letters. Loop has 2 letters. [2020-11-28 02:58:36,076 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:36,076 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 20 letters. Loop has 4 letters. [2020-11-28 02:58:36,076 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:36,076 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2020-11-28 02:58:36,077 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 02:58:36,077 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2020-11-28 02:58:36,077 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 02:58:36,078 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 02:58:36,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 02:58:36,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:58:36,078 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:58:36,078 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:58:36,078 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:58:36,078 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-11-28 02:58:36,078 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 02:58:36,078 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 02:58:36,078 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 02:58:36,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 02:58:36 BoogieIcfgContainer [2020-11-28 02:58:36,086 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 02:58:36,086 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:58:36,086 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:58:36,086 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:58:36,087 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:58:26" (3/4) ... [2020-11-28 02:58:36,090 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 02:58:36,091 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:58:36,092 INFO L168 Benchmark]: Toolchain (without parser) took 10744.55 ms. Allocated memory was 81.8 MB in the beginning and 157.3 MB in the end (delta: 75.5 MB). Free memory was 47.4 MB in the beginning and 94.9 MB in the end (delta: -47.6 MB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:36,092 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 81.8 MB. Free memory was 57.1 MB in the beginning and 57.1 MB in the end (delta: 26.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:58:36,093 INFO L168 Benchmark]: CACSL2BoogieTranslator took 606.77 ms. Allocated memory was 81.8 MB in the beginning and 107.0 MB in the end (delta: 25.2 MB). Free memory was 47.4 MB in the beginning and 69.0 MB in the end (delta: -21.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:36,094 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.76 ms. Allocated memory is still 107.0 MB. Free memory was 69.0 MB in the beginning and 67.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:36,094 INFO L168 Benchmark]: Boogie Preprocessor took 39.42 ms. Allocated memory is still 107.0 MB. Free memory was 67.0 MB in the beginning and 65.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:36,095 INFO L168 Benchmark]: RCFGBuilder took 354.17 ms. Allocated memory is still 107.0 MB. Free memory was 65.9 MB in the beginning and 52.3 MB in the end (delta: 13.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:36,096 INFO L168 Benchmark]: BuchiAutomizer took 9663.95 ms. Allocated memory was 107.0 MB in the beginning and 157.3 MB in the end (delta: 50.3 MB). Free memory was 52.3 MB in the beginning and 94.9 MB in the end (delta: -42.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:36,096 INFO L168 Benchmark]: Witness Printer took 4.53 ms. Allocated memory is still 157.3 MB. Free memory is still 94.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:58:36,101 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 81.8 MB. Free memory was 57.1 MB in the beginning and 57.1 MB in the end (delta: 26.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 606.77 ms. Allocated memory was 81.8 MB in the beginning and 107.0 MB in the end (delta: 25.2 MB). Free memory was 47.4 MB in the beginning and 69.0 MB in the end (delta: -21.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.76 ms. Allocated memory is still 107.0 MB. Free memory was 69.0 MB in the beginning and 67.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.42 ms. Allocated memory is still 107.0 MB. Free memory was 67.0 MB in the beginning and 65.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 354.17 ms. Allocated memory is still 107.0 MB. Free memory was 65.9 MB in the beginning and 52.3 MB in the end (delta: 13.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 9663.95 ms. Allocated memory was 107.0 MB in the beginning and 157.3 MB in the end (delta: 50.3 MB). Free memory was 52.3 MB in the beginning and 94.9 MB in the end (delta: -42.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.53 ms. Allocated memory is still 157.3 MB. Free memory is still 94.9 MB. There was no memory consumed. Max. memory is 16.1 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 - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 8 terminating modules (3 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * i + length and consists of 5 locations. One deterministic module has affine ranking function -1 * arr + -4 * j + unknown-#length-unknown[arr] and consists of 4 locations. One deterministic module has affine ranking function limit + -1 * unknown-#memory_int-unknown[arr][arr + i * 4 + -4] and consists of 8 locations. One deterministic module has affine ranking function limit + -1 * unknown-#memory_int-unknown[arr][j * 4 + arr] and consists of 4 locations. One nondeterministic module has affine ranking function limit + -1 * unknown-#memory_int-unknown[arr][j * 4 + arr] and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.6s and 9 iterations. TraceHistogramMax:2. Analysis of lassos took 8.0s. Construction of modules took 0.3s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 18 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 35 states and ocurred in iteration 5. Nontrivial modules had stage [4, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 135 SDtfs, 191 SDslu, 112 SDs, 0 SdLazy, 205 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU3 SILI0 SILT0 lasso5 LassoPreprocessingBenchmarks: Lassos: inital140 mio100 ax100 hnf97 lsp94 ukn77 mio100 lsp57 div100 bol100 ite100 ukn100 eq157 hnf89 smp84 dnf100 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms 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...