./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/substring-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/substring-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/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 32bit --witnessprinter.graph.data.programhash 6e748b563bb7a11726b28f7957ce1a00b7c8807b 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Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:13:01,968 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:13:01,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:13:01,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:13:01,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:13:01,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:13:01,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:13:01,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:13:01,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:13:01,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:13:01,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:13:01,983 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:13:01,983 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:13:01,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:13:01,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:13:01,985 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:13:01,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:13:01,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:13:01,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:13:01,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:13:01,991 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:13:01,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:13:01,992 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:13:01,993 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:13:01,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:13:01,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:13:01,995 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:13:01,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:13:01,995 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:13:01,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:13:01,996 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:13:01,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:13:01,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:13:01,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:13:01,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:13:01,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:13:01,998 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:13:01,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:13:01,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:13:01,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:13:02,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:13:02,000 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 18:13:02,011 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:13:02,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:13:02,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:13:02,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:13:02,012 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:13:02,012 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 18:13:02,012 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 18:13:02,012 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 18:13:02,013 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 18:13:02,013 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 18:13:02,013 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 18:13:02,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:13:02,013 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:13:02,013 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:13:02,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:13:02,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:13:02,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:13:02,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 18:13:02,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 18:13:02,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 18:13:02,014 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:13:02,014 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:13:02,014 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 18:13:02,014 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:13:02,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 18:13:02,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:13:02,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:13:02,015 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 18:13:02,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:13:02,015 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:13:02,015 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:13:02,015 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 18:13:02,016 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 18:13:02,016 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e748b563bb7a11726b28f7957ce1a00b7c8807b [2019-12-07 18:13:02,113 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:13:02,123 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:13:02,126 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:13:02,127 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:13:02,127 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:13:02,127 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/substring-alloca-2.i [2019-12-07 18:13:02,169 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/data/549d9d02c/d7183395452c4e269c896cc381de55ea/FLAG949ade2f1 [2019-12-07 18:13:02,575 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:13:02,575 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/sv-benchmarks/c/array-memsafety/substring-alloca-2.i [2019-12-07 18:13:02,584 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/data/549d9d02c/d7183395452c4e269c896cc381de55ea/FLAG949ade2f1 [2019-12-07 18:13:02,593 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/data/549d9d02c/d7183395452c4e269c896cc381de55ea [2019-12-07 18:13:02,594 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:13:02,595 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:13:02,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:13:02,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:13:02,598 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:13:02,599 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:13:02" (1/1) ... [2019-12-07 18:13:02,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@733d7c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:13:02, skipping insertion in model container [2019-12-07 18:13:02,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:13:02" (1/1) ... [2019-12-07 18:13:02,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:13:02,628 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:13:02,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:13:02,830 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:13:02,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:13:02,890 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:13:02,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:13:02 WrapperNode [2019-12-07 18:13:02,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:13:02,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:13:02,891 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:13:02,891 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:13:02,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:13:02" (1/1) ... [2019-12-07 18:13:02,906 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:13:02" (1/1) ... [2019-12-07 18:13:02,921 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:13:02,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:13:02,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:13:02,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:13:02,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:13:02" (1/1) ... [2019-12-07 18:13:02,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:13:02" (1/1) ... [2019-12-07 18:13:02,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:13:02" (1/1) ... [2019-12-07 18:13:02,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:13:02" (1/1) ... [2019-12-07 18:13:02,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:13:02" (1/1) ... [2019-12-07 18:13:02,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:13:02" (1/1) ... [2019-12-07 18:13:02,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:13:02" (1/1) ... [2019-12-07 18:13:02,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:13:02,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:13:02,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:13:02,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:13:02,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:13:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:02,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 18:13:02,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 18:13:02,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:13:02,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:13:02,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:13:02,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:13:03,160 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:13:03,160 INFO L287 CfgBuilder]: Removed 10 assume(true) statements. [2019-12-07 18:13:03,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:13:03 BoogieIcfgContainer [2019-12-07 18:13:03,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:13:03,162 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 18:13:03,162 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 18:13:03,164 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 18:13:03,164 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:13:03,164 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 06:13:02" (1/3) ... [2019-12-07 18:13:03,165 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38422bec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:13:03, skipping insertion in model container [2019-12-07 18:13:03,165 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:13:03,165 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:13:02" (2/3) ... [2019-12-07 18:13:03,165 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38422bec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:13:03, skipping insertion in model container [2019-12-07 18:13:03,165 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:13:03,165 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:13:03" (3/3) ... [2019-12-07 18:13:03,168 INFO L371 chiAutomizerObserver]: Analyzing ICFG substring-alloca-2.i [2019-12-07 18:13:03,196 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 18:13:03,196 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 18:13:03,196 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 18:13:03,196 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:13:03,196 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:13:03,196 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 18:13:03,196 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:13:03,196 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 18:13:03,205 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states. [2019-12-07 18:13:03,219 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2019-12-07 18:13:03,219 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:13:03,219 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:13:03,223 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 18:13:03,224 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:13:03,224 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 18:13:03,224 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states. [2019-12-07 18:13:03,225 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2019-12-07 18:13:03,225 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:13:03,225 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:13:03,225 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 18:13:03,226 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:13:03,230 INFO L794 eck$LassoCheckResult]: Stem: 17#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 15#L-1true havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 16#L532true assume !(main_~length1~0 < 1); 18#L532-2true assume !(main_~length2~0 < 1); 11#L535-1true call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 24#L541-3true [2019-12-07 18:13:03,231 INFO L796 eck$LassoCheckResult]: Loop: 24#L541-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 21#L541-2true main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 24#L541-3true [2019-12-07 18:13:03,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:03,234 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2019-12-07 18:13:03,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:03,240 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640467353] [2019-12-07 18:13:03,240 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:03,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:03,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:03,328 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:03,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:03,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2019-12-07 18:13:03,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:03,329 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404196602] [2019-12-07 18:13:03,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:03,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:03,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:03,341 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:03,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:03,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2019-12-07 18:13:03,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:03,343 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551326392] [2019-12-07 18:13:03,343 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:03,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:03,371 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:03,515 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-12-07 18:13:03,564 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:13:03,564 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:13:03,564 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:13:03,564 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:13:03,565 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:13:03,565 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:03,565 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:13:03,565 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:13:03,565 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-2.i_Iteration1_Lasso [2019-12-07 18:13:03,565 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:13:03,565 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:13:03,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:03,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:03,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:03,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:03,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:03,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:03,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:03,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:03,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:03,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:03,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:03,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:03,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:03,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:03,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:03,877 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:13:03,880 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:03,884 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:03,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:03,886 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:03,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:03,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:03,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:03,889 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:03,889 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:03,891 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:03,895 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:03,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:03,896 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:03,896 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:03,896 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:03,896 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:03,897 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:03,897 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:03,898 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:03,902 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:03,903 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:03,903 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:03,903 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:03,903 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:03,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:03,904 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:03,904 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:03,905 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:03,908 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:03,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:03,909 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:03,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:03,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:03,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:03,910 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:03,910 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:03,911 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:03,917 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:03,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:03,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:03,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:03,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:03,921 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:03,921 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:03,924 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:03,927 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:03,928 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:03,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:03,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:03,929 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:03,931 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:03,931 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:03,934 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:03,937 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:03,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:03,938 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:03,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:03,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:03,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:03,939 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:03,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:03,940 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:03,944 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:03,945 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:03,945 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:03,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:03,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:03,948 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:03,948 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:03,951 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:03,955 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:03,956 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:03,956 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:03,956 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:03,956 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:03,956 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:03,957 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:03,957 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:03,958 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:03,961 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:03,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:03,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:03,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:03,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:03,964 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:03,965 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:03,969 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:03,973 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:03,974 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:03,974 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:03,975 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:03,975 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:03,976 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:03,977 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:03,980 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:03,984 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:03,985 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:03,985 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:03,985 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:03,985 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:03,988 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:03,988 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:03,993 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:03,996 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:03,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:03,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:03,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:03,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:04,001 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:04,001 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:04,007 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:04,012 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:04,013 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:04,014 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:04,014 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:04,014 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:04,014 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:04,014 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:04,014 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:04,016 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:04,020 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:04,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:04,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:04,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:04,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:04,024 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:04,024 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:04,028 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:04,032 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:04,033 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:04,033 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:04,033 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:04,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:04,035 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:04,035 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:04,037 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:04,041 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:04,042 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:04,042 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:04,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:04,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:04,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:04,043 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:04,043 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:04,045 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:04,048 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:04,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:04,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:04,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:04,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:04,054 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:04,054 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:04,063 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:13:04,081 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-12-07 18:13:04,081 INFO L444 ModelExtractionUtils]: 4 out of 22 variables were initially zero. Simplification set additionally 15 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:04,092 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:13:04,097 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 18:13:04,097 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:13:04,098 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-12-07 18:13:04,116 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2019-12-07 18:13:04,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:04,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:04,152 INFO L264 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:13:04,152 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:13:04,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:04,163 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:13:04,163 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:13:04,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:13:04,190 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 18:13:04,191 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states. Second operand 3 states. [2019-12-07 18:13:04,240 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states.. Second operand 3 states. Result 57 states and 84 transitions. Complement of second has 7 states. [2019-12-07 18:13:04,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 18:13:04,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 18:13:04,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 57 transitions. [2019-12-07 18:13:04,245 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 57 transitions. Stem has 5 letters. Loop has 2 letters. [2019-12-07 18:13:04,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:13:04,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 57 transitions. Stem has 7 letters. Loop has 2 letters. [2019-12-07 18:13:04,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:13:04,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 57 transitions. Stem has 5 letters. Loop has 4 letters. [2019-12-07 18:13:04,247 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:13:04,247 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 84 transitions. [2019-12-07 18:13:04,251 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2019-12-07 18:13:04,255 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 19 states and 26 transitions. [2019-12-07 18:13:04,256 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2019-12-07 18:13:04,256 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2019-12-07 18:13:04,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 26 transitions. [2019-12-07 18:13:04,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:13:04,257 INFO L688 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2019-12-07 18:13:04,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 26 transitions. [2019-12-07 18:13:04,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-12-07 18:13:04,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-07 18:13:04,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2019-12-07 18:13:04,280 INFO L711 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2019-12-07 18:13:04,280 INFO L591 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2019-12-07 18:13:04,280 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 18:13:04,280 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 26 transitions. [2019-12-07 18:13:04,281 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2019-12-07 18:13:04,281 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:13:04,281 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:13:04,281 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:13:04,281 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:13:04,282 INFO L794 eck$LassoCheckResult]: Stem: 167#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 164#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 165#L532 assume !(main_~length1~0 < 1); 166#L532-2 assume !(main_~length2~0 < 1); 161#L535-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 162#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 154#L541-4 main_~i~1 := 0; 155#L547-3 [2019-12-07 18:13:04,282 INFO L796 eck$LassoCheckResult]: Loop: 155#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 160#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 155#L547-3 [2019-12-07 18:13:04,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:04,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2019-12-07 18:13:04,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:04,282 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117920521] [2019-12-07 18:13:04,282 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:04,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:04,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:04,298 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:04,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:04,298 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2019-12-07 18:13:04,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:04,298 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962747231] [2019-12-07 18:13:04,298 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:04,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:04,306 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:04,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:04,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384784, now seen corresponding path program 1 times [2019-12-07 18:13:04,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:04,307 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140255946] [2019-12-07 18:13:04,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:04,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:04,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:04,328 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:04,486 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:13:04,486 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:13:04,487 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:13:04,487 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:13:04,487 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:13:04,487 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:04,487 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:13:04,487 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:13:04,487 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-2.i_Iteration2_Lasso [2019-12-07 18:13:04,487 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:13:04,487 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:13:04,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:04,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:04,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:04,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:04,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:04,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:04,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:04,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:04,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:04,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:04,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:04,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:04,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:04,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:04,768 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:13:04,768 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:04,771 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:04,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:04,772 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:04,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:04,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:04,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:04,773 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:04,773 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:04,774 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:04,778 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:04,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:04,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:04,780 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:04,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:04,781 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:04,781 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:04,783 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:04,787 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:04,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:04,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:04,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:04,788 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:04,790 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:04,790 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:04,796 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:04,801 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:04,802 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:04,802 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:04,802 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:04,803 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:04,804 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:04,804 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:04,808 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:04,813 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:04,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:04,814 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:04,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:04,814 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:04,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:04,815 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:04,815 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:04,816 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:04,820 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:04,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:04,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:04,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:04,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:04,823 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:04,823 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:04,825 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:04,830 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:04,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:04,831 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:04,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:04,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:04,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:04,832 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:04,832 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:04,833 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:04,837 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:04,838 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:04,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:04,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:04,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:04,842 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:04,842 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:04,850 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:13:04,870 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2019-12-07 18:13:04,870 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 13 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:04,873 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:13:04,876 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 18:13:04,876 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:13:04,876 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1, ULTIMATE.start_main_~length2~0) = -1*ULTIMATE.start_main_~i~1 + 1*ULTIMATE.start_main_~length2~0 Supporting invariants [] [2019-12-07 18:13:04,887 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2019-12-07 18:13:04,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:04,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:04,903 INFO L264 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:13:04,903 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:13:04,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:04,907 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:13:04,908 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:13:04,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:13:04,915 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 18:13:04,915 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 26 transitions. cyclomatic complexity: 10 Second operand 3 states. [2019-12-07 18:13:04,930 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 26 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 29 states and 42 transitions. Complement of second has 6 states. [2019-12-07 18:13:04,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 18:13:04,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 18:13:04,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2019-12-07 18:13:04,931 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 7 letters. Loop has 2 letters. [2019-12-07 18:13:04,931 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:13:04,931 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 9 letters. Loop has 2 letters. [2019-12-07 18:13:04,931 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:13:04,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 7 letters. Loop has 4 letters. [2019-12-07 18:13:04,932 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:13:04,932 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 42 transitions. [2019-12-07 18:13:04,933 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2019-12-07 18:13:04,933 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 20 states and 28 transitions. [2019-12-07 18:13:04,933 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2019-12-07 18:13:04,934 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2019-12-07 18:13:04,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 28 transitions. [2019-12-07 18:13:04,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:13:04,934 INFO L688 BuchiCegarLoop]: Abstraction has 20 states and 28 transitions. [2019-12-07 18:13:04,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 28 transitions. [2019-12-07 18:13:04,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-12-07 18:13:04,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-12-07 18:13:04,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 28 transitions. [2019-12-07 18:13:04,935 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 28 transitions. [2019-12-07 18:13:04,936 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 28 transitions. [2019-12-07 18:13:04,936 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 18:13:04,936 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 28 transitions. [2019-12-07 18:13:04,936 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2019-12-07 18:13:04,936 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:13:04,936 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:13:04,937 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:13:04,937 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:13:04,937 INFO L794 eck$LassoCheckResult]: Stem: 290#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 287#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 288#L532 assume !(main_~length1~0 < 1); 289#L532-2 assume !(main_~length2~0 < 1); 284#L535-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 285#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 276#L541-4 main_~i~1 := 0; 277#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 286#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 279#L517-3 [2019-12-07 18:13:04,937 INFO L796 eck$LassoCheckResult]: Loop: 279#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 274#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 275#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 278#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 291#L520-3 assume !substring_#t~short6;havoc substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5; 280#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 281#L524 assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 279#L517-3 [2019-12-07 18:13:04,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:04,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384726, now seen corresponding path program 1 times [2019-12-07 18:13:04,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:04,938 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707452162] [2019-12-07 18:13:04,938 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:04,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:04,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:04,962 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:04,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:04,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1328860033, now seen corresponding path program 1 times [2019-12-07 18:13:04,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:04,963 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807798497] [2019-12-07 18:13:04,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:04,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:04,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:04,979 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:04,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:04,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1515359350, now seen corresponding path program 1 times [2019-12-07 18:13:04,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:04,979 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365744695] [2019-12-07 18:13:04,980 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:05,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:13:05,130 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365744695] [2019-12-07 18:13:05,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:13:05,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-07 18:13:05,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491144776] [2019-12-07 18:13:05,236 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2019-12-07 18:13:05,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:13:05,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 18:13:05,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:13:05,272 INFO L87 Difference]: Start difference. First operand 20 states and 28 transitions. cyclomatic complexity: 11 Second operand 7 states. [2019-12-07 18:13:05,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:13:05,336 INFO L93 Difference]: Finished difference Result 28 states and 37 transitions. [2019-12-07 18:13:05,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 18:13:05,336 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 37 transitions. [2019-12-07 18:13:05,337 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2019-12-07 18:13:05,338 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 21 states and 28 transitions. [2019-12-07 18:13:05,338 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2019-12-07 18:13:05,338 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2019-12-07 18:13:05,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 28 transitions. [2019-12-07 18:13:05,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:13:05,339 INFO L688 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2019-12-07 18:13:05,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 28 transitions. [2019-12-07 18:13:05,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2019-12-07 18:13:05,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-12-07 18:13:05,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2019-12-07 18:13:05,341 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2019-12-07 18:13:05,341 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2019-12-07 18:13:05,341 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 18:13:05,341 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 27 transitions. [2019-12-07 18:13:05,341 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2019-12-07 18:13:05,341 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:13:05,342 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:13:05,342 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:13:05,342 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:13:05,342 INFO L794 eck$LassoCheckResult]: Stem: 354#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 351#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 352#L532 assume !(main_~length1~0 < 1); 353#L532-2 assume !(main_~length2~0 < 1); 348#L535-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 349#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 356#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 357#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 340#L541-4 main_~i~1 := 0; 341#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 350#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 343#L517-3 [2019-12-07 18:13:05,342 INFO L796 eck$LassoCheckResult]: Loop: 343#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 338#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 339#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 342#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 355#L520-3 assume !substring_#t~short6;havoc substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5; 344#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 345#L524 assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 343#L517-3 [2019-12-07 18:13:05,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:05,343 INFO L82 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 1 times [2019-12-07 18:13:05,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:05,343 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197615093] [2019-12-07 18:13:05,343 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:05,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:05,369 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:05,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:05,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1328860033, now seen corresponding path program 2 times [2019-12-07 18:13:05,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:05,370 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058549849] [2019-12-07 18:13:05,370 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:05,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:05,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:05,394 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:05,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:05,394 INFO L82 PathProgramCache]: Analyzing trace with hash 2020169960, now seen corresponding path program 1 times [2019-12-07 18:13:05,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:05,394 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713096981] [2019-12-07 18:13:05,394 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:05,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:05,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 18:13:05,479 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713096981] [2019-12-07 18:13:05,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:13:05,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-07 18:13:05,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981577314] [2019-12-07 18:13:05,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:13:05,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 18:13:05,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-12-07 18:13:05,585 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. cyclomatic complexity: 10 Second operand 9 states. [2019-12-07 18:13:05,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:13:05,673 INFO L93 Difference]: Finished difference Result 34 states and 44 transitions. [2019-12-07 18:13:05,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 18:13:05,674 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 44 transitions. [2019-12-07 18:13:05,674 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2019-12-07 18:13:05,675 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 32 states and 42 transitions. [2019-12-07 18:13:05,675 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2019-12-07 18:13:05,675 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2019-12-07 18:13:05,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 42 transitions. [2019-12-07 18:13:05,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:13:05,675 INFO L688 BuchiCegarLoop]: Abstraction has 32 states and 42 transitions. [2019-12-07 18:13:05,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 42 transitions. [2019-12-07 18:13:05,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2019-12-07 18:13:05,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-07 18:13:05,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 41 transitions. [2019-12-07 18:13:05,677 INFO L711 BuchiCegarLoop]: Abstraction has 31 states and 41 transitions. [2019-12-07 18:13:05,677 INFO L591 BuchiCegarLoop]: Abstraction has 31 states and 41 transitions. [2019-12-07 18:13:05,678 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 18:13:05,678 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 41 transitions. [2019-12-07 18:13:05,678 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2019-12-07 18:13:05,678 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:13:05,678 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:13:05,679 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:13:05,679 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1] [2019-12-07 18:13:05,679 INFO L794 eck$LassoCheckResult]: Stem: 433#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 430#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 431#L532 assume !(main_~length1~0 < 1); 432#L532-2 assume !(main_~length2~0 < 1); 426#L535-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 427#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 436#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 437#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 416#L541-4 main_~i~1 := 0; 417#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 428#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 419#L517-3 [2019-12-07 18:13:05,679 INFO L796 eck$LassoCheckResult]: Loop: 419#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 420#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 440#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 434#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 435#L520-3 assume !!substring_#t~short6;havoc substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;substring_#t~post7.base, substring_#t~post7.offset := substring_~pt~0.base, substring_~pt~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_#t~post7.base, 1 + substring_#t~post7.offset;havoc substring_#t~post7.base, substring_#t~post7.offset;substring_#t~post8.base, substring_#t~post8.offset := substring_~ps2~0.base, substring_~ps2~0.offset;substring_~ps2~0.base, substring_~ps2~0.offset := substring_#t~post8.base, 1 + substring_#t~post8.offset;havoc substring_#t~post8.base, substring_#t~post8.offset; 438#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 444#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 443#L520-3 assume !substring_#t~short6;havoc substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5; 442#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 441#L524 assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 419#L517-3 [2019-12-07 18:13:05,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:05,679 INFO L82 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 2 times [2019-12-07 18:13:05,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:05,679 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799894323] [2019-12-07 18:13:05,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:05,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:05,699 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:05,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:05,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1312710103, now seen corresponding path program 1 times [2019-12-07 18:13:05,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:05,700 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780586292] [2019-12-07 18:13:05,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:05,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:05,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:05,715 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:05,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:05,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1844492576, now seen corresponding path program 1 times [2019-12-07 18:13:05,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:05,716 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519958603] [2019-12-07 18:13:05,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:05,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:05,781 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 18:13:05,782 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519958603] [2019-12-07 18:13:05,782 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127690839] [2019-12-07 18:13:05,782 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:13:05,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:05,824 INFO L264 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 16 conjunts are in the unsatisfiable core [2019-12-07 18:13:05,826 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:13:05,856 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:13:05,856 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-12-07 18:13:05,857 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 18:13:05,866 INFO L614 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-12-07 18:13:05,867 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 18:13:05,867 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:9, output treesize:5 [2019-12-07 18:13:05,925 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 18:13:05,926 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 18:13:05,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2019-12-07 18:13:05,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667656796] [2019-12-07 18:13:06,077 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 83 [2019-12-07 18:13:06,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:13:06,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 18:13:06,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2019-12-07 18:13:06,108 INFO L87 Difference]: Start difference. First operand 31 states and 41 transitions. cyclomatic complexity: 14 Second operand 9 states. [2019-12-07 18:13:06,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:13:06,200 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2019-12-07 18:13:06,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 18:13:06,201 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2019-12-07 18:13:06,201 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2019-12-07 18:13:06,202 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 21 states and 27 transitions. [2019-12-07 18:13:06,202 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2019-12-07 18:13:06,202 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2019-12-07 18:13:06,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 27 transitions. [2019-12-07 18:13:06,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:13:06,202 INFO L688 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2019-12-07 18:13:06,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 27 transitions. [2019-12-07 18:13:06,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2019-12-07 18:13:06,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-12-07 18:13:06,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2019-12-07 18:13:06,204 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2019-12-07 18:13:06,204 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2019-12-07 18:13:06,204 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-12-07 18:13:06,204 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions. [2019-12-07 18:13:06,204 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2019-12-07 18:13:06,204 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:13:06,204 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:13:06,205 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:13:06,205 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:13:06,205 INFO L794 eck$LassoCheckResult]: Stem: 579#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 576#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 577#L532 assume !(main_~length1~0 < 1); 578#L532-2 assume !(main_~length2~0 < 1); 573#L535-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 574#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 581#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 582#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 565#L541-4 main_~i~1 := 0; 566#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 571#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 572#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 575#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 568#L517-3 [2019-12-07 18:13:06,205 INFO L796 eck$LassoCheckResult]: Loop: 568#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 563#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 564#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 567#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 580#L520-3 assume !substring_#t~short6;havoc substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5; 569#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 570#L524 assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 568#L517-3 [2019-12-07 18:13:06,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:06,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1066016806, now seen corresponding path program 1 times [2019-12-07 18:13:06,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:06,205 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180416946] [2019-12-07 18:13:06,205 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:06,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:06,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:06,225 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:06,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:06,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1328860033, now seen corresponding path program 3 times [2019-12-07 18:13:06,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:06,225 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985650366] [2019-12-07 18:13:06,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:06,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:06,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:06,234 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:06,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:06,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1498710394, now seen corresponding path program 1 times [2019-12-07 18:13:06,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:06,235 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079893418] [2019-12-07 18:13:06,235 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:06,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:06,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:06,259 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:06,697 WARN L192 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 112 [2019-12-07 18:13:06,794 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:13:06,794 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:13:06,794 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:13:06,794 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:13:06,794 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:13:06,794 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:06,795 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:13:06,795 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:13:06,795 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-2.i_Iteration6_Lasso [2019-12-07 18:13:06,795 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:13:06,795 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:13:06,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:06,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:06,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:06,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:06,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:06,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:06,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:06,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:06,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:06,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:06,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:07,123 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-12-07 18:13:07,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:07,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:07,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:07,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:07,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:07,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:07,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:07,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:07,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:07,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:07,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:07,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:07,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:07,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:07,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:07,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:07,639 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:13:07,640 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:07,642 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:07,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:07,644 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:07,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:07,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:07,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:07,644 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:07,644 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:07,645 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:07,649 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:07,650 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:07,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:07,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:07,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:07,651 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:07,651 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:07,654 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:07,657 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:07,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:07,658 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:07,658 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:07,658 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:07,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:07,659 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:07,659 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:07,660 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:07,663 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:07,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:07,665 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:07,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:07,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:07,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:07,665 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:07,665 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:07,666 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:07,670 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:07,671 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:07,671 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:07,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:07,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:07,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:07,672 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:07,672 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:07,673 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:07,676 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:07,678 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:07,678 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:07,678 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:07,678 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:07,678 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:07,678 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:07,678 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:07,679 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:07,683 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:07,684 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:07,684 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:07,684 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:07,684 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:07,684 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:07,684 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:07,685 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:07,685 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:07,689 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:07,690 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:07,690 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:07,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:07,690 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:07,690 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:07,690 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:07,691 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:07,692 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:07,695 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:07,696 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:07,696 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:07,696 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:07,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:07,696 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:07,697 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:07,697 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:07,698 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:07,701 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:07,702 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:07,703 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:07,703 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:07,703 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:07,704 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:07,704 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:07,707 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:07,711 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:07,712 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:07,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:07,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:07,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:07,713 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:07,713 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:07,715 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:07,719 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:07,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:07,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:07,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:07,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:07,721 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:07,721 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:07,724 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:07,728 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:07,729 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:07,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:07,729 INFO L204 nArgumentSynthesizer]: 6 loop disjuncts [2019-12-07 18:13:07,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:07,764 INFO L401 nArgumentSynthesizer]: We have 96 Motzkin's Theorem applications. [2019-12-07 18:13:07,764 INFO L402 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2019-12-07 18:13:07,848 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:07,852 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:07,853 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:07,853 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:07,853 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:07,854 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:07,854 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:07,855 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:07,857 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:07,861 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:07,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:07,862 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:07,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:07,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:07,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:07,863 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:07,863 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:07,865 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:07,869 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:07,870 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:07,870 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:07,870 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:07,870 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:07,871 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:07,871 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:07,873 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:07,877 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:07,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:07,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:07,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:07,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:07,883 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:07,883 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:07,892 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:07,896 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:07,897 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:07,897 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:07,897 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:07,897 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:07,899 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:07,899 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:07,901 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:07,905 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:07,906 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:07,906 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:07,906 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:07,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:07,908 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:07,908 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:07,912 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:07,916 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:07,917 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:07,917 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:07,917 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:07,917 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:07,918 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:07,918 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:07,920 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:07,924 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:07,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:07,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:07,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:07,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:07,932 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:07,932 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:07,950 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:13:07,993 INFO L443 ModelExtractionUtils]: Simplification made 23 calls to the SMT solver. [2019-12-07 18:13:07,993 INFO L444 ModelExtractionUtils]: 30 out of 58 variables were initially zero. Simplification set additionally 23 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:07,995 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:13:07,997 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 18:13:07,997 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:13:07,997 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_substring_~ps~0.offset) = -2*ULTIMATE.start_substring_~ps~0.offset + 3 Supporting invariants [-1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_3 + 2 >= 0] [2019-12-07 18:13:08,043 INFO L297 tatePredicateManager]: 14 out of 16 supporting invariants were superfluous and have been removed [2019-12-07 18:13:08,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:08,074 INFO L264 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 16 conjunts are in the unsatisfiable core [2019-12-07 18:13:08,074 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:13:08,079 INFO L430 ElimStorePlain]: Different costs {0=[|v_#length_88|], 1=[|v_#valid_120|]} [2019-12-07 18:13:08,081 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 18:13:08,082 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2019-12-07 18:13:08,082 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 18:13:08,090 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:13:08,094 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-12-07 18:13:08,094 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 18:13:08,101 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:13:08,101 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 18:13:08,101 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:25, output treesize:13 [2019-12-07 18:13:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:08,138 INFO L264 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 18:13:08,138 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:13:08,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:13:08,153 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 [2019-12-07 18:13:08,154 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 26 transitions. cyclomatic complexity: 9 Second operand 6 states. [2019-12-07 18:13:08,233 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 26 transitions. cyclomatic complexity: 9. Second operand 6 states. Result 44 states and 57 transitions. Complement of second has 9 states. [2019-12-07 18:13:08,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 4 stem states 1 non-accepting loop states 2 accepting loop states [2019-12-07 18:13:08,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-12-07 18:13:08,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 34 transitions. [2019-12-07 18:13:08,233 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 34 transitions. Stem has 13 letters. Loop has 7 letters. [2019-12-07 18:13:08,234 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:13:08,234 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 34 transitions. Stem has 20 letters. Loop has 7 letters. [2019-12-07 18:13:08,234 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:13:08,234 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 34 transitions. Stem has 13 letters. Loop has 14 letters. [2019-12-07 18:13:08,234 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:13:08,234 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 57 transitions. [2019-12-07 18:13:08,235 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2019-12-07 18:13:08,235 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 42 states and 55 transitions. [2019-12-07 18:13:08,235 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2019-12-07 18:13:08,236 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2019-12-07 18:13:08,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 55 transitions. [2019-12-07 18:13:08,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:13:08,236 INFO L688 BuchiCegarLoop]: Abstraction has 42 states and 55 transitions. [2019-12-07 18:13:08,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 55 transitions. [2019-12-07 18:13:08,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2019-12-07 18:13:08,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-12-07 18:13:08,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 52 transitions. [2019-12-07 18:13:08,238 INFO L711 BuchiCegarLoop]: Abstraction has 39 states and 52 transitions. [2019-12-07 18:13:08,238 INFO L591 BuchiCegarLoop]: Abstraction has 39 states and 52 transitions. [2019-12-07 18:13:08,238 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-12-07 18:13:08,238 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 52 transitions. [2019-12-07 18:13:08,238 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2019-12-07 18:13:08,238 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:13:08,239 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:13:08,239 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:13:08,239 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 18:13:08,239 INFO L794 eck$LassoCheckResult]: Stem: 815#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 812#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 813#L532 assume !(main_~length1~0 < 1); 814#L532-2 assume !(main_~length2~0 < 1); 809#L535-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 810#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 820#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 830#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 829#L541-4 main_~i~1 := 0; 828#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 826#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 825#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 822#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 821#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 792#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 793#L520-5 [2019-12-07 18:13:08,239 INFO L796 eck$LassoCheckResult]: Loop: 793#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 798#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 816#L520-3 assume !!substring_#t~short6;havoc substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;substring_#t~post7.base, substring_#t~post7.offset := substring_~pt~0.base, substring_~pt~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_#t~post7.base, 1 + substring_#t~post7.offset;havoc substring_#t~post7.base, substring_#t~post7.offset;substring_#t~post8.base, substring_#t~post8.offset := substring_~ps2~0.base, substring_~ps2~0.offset;substring_~ps2~0.base, substring_~ps2~0.offset := substring_#t~post8.base, 1 + substring_#t~post8.offset;havoc substring_#t~post8.base, substring_#t~post8.offset; 793#L520-5 [2019-12-07 18:13:08,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:08,239 INFO L82 PathProgramCache]: Analyzing trace with hash 2055034719, now seen corresponding path program 1 times [2019-12-07 18:13:08,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:08,239 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396717763] [2019-12-07 18:13:08,239 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:08,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:08,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:08,253 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:08,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:08,254 INFO L82 PathProgramCache]: Analyzing trace with hash 87489, now seen corresponding path program 1 times [2019-12-07 18:13:08,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:08,254 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945803753] [2019-12-07 18:13:08,254 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:08,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:08,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:08,258 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:08,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:08,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1075534243, now seen corresponding path program 1 times [2019-12-07 18:13:08,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:08,259 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902950042] [2019-12-07 18:13:08,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:08,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:08,275 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:08,808 WARN L192 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 131 [2019-12-07 18:13:08,967 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-12-07 18:13:08,969 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:13:08,969 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:13:08,969 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:13:08,969 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:13:08,969 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:13:08,969 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:08,969 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:13:08,969 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:13:08,969 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-2.i_Iteration7_Lasso [2019-12-07 18:13:08,969 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:13:08,969 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:13:08,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:08,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:08,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:08,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:08,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:08,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:08,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:08,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:08,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:08,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:08,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:08,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:08,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:08,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:08,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:09,454 WARN L192 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 102 [2019-12-07 18:13:09,595 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2019-12-07 18:13:09,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:09,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:09,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:09,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:09,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:09,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:09,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:09,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:09,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:09,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:09,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:09,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:09,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:09,770 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2019-12-07 18:13:10,182 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:13:10,182 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:10,184 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:10,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:10,185 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:10,185 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:10,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:10,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:10,186 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:10,186 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:10,187 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:10,191 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:10,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:10,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:10,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:10,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:10,193 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:10,193 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:10,196 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:10,200 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:10,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:10,201 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:10,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:10,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:10,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:10,201 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:10,201 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:10,202 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:10,206 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:10,207 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:10,207 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:10,207 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:10,208 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:10,208 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:10,208 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:10,208 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:10,209 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:10,212 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:10,213 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:10,213 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:10,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:10,214 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:10,214 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:10,214 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:10,216 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:10,220 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:10,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:10,221 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:10,221 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:10,221 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:10,221 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:10,221 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:10,222 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:10,223 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:10,226 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:10,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:10,228 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:10,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:10,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:10,228 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:10,228 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:10,228 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:10,229 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:10,233 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:10,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:10,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:10,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:10,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:10,235 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:10,235 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:10,237 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:10,240 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:10,241 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:10,241 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:10,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:10,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:10,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:10,242 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:10,242 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:10,243 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:10,246 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:10,247 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:10,247 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:10,247 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:10,247 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:10,248 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:10,248 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:10,248 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:10,249 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:10,252 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:10,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:10,253 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:10,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:10,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:10,253 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:10,254 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:10,254 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:10,255 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:10,258 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:10,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:10,260 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:10,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:10,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:10,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:10,260 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:10,260 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:10,261 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:10,265 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:10,266 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:10,266 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:10,266 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:10,266 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:10,266 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:10,266 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:10,266 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:10,267 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 66 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 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:10,271 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:10,271 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:10,272 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:10,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:10,272 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:10,272 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:10,272 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:10,272 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:10,273 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 67 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 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:10,276 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:10,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:10,278 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:10,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:10,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:10,287 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:10,287 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:10,309 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:13:10,376 INFO L443 ModelExtractionUtils]: Simplification made 26 calls to the SMT solver. [2019-12-07 18:13:10,376 INFO L444 ModelExtractionUtils]: 17 out of 64 variables were initially zero. Simplification set additionally 44 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 68 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 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:10,378 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:13:10,380 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 18:13:10,380 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:13:10,380 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_substring_~pt~0.base)_2, ULTIMATE.start_substring_~ps2~0.offset) = 1*v_rep(select #length ULTIMATE.start_substring_~pt~0.base)_2 - 1*ULTIMATE.start_substring_~ps2~0.offset Supporting invariants [] [2019-12-07 18:13:10,489 INFO L297 tatePredicateManager]: 33 out of 34 supporting invariants were superfluous and have been removed [2019-12-07 18:13:10,491 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 18:13:10,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:10,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:10,525 INFO L264 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 24 conjunts are in the unsatisfiable core [2019-12-07 18:13:10,526 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:13:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:10,548 INFO L264 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 18:13:10,549 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:13:10,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:13:10,561 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2019-12-07 18:13:10,562 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 52 transitions. cyclomatic complexity: 19 Second operand 5 states. [2019-12-07 18:13:10,607 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 52 transitions. cyclomatic complexity: 19. Second operand 5 states. Result 78 states and 102 transitions. Complement of second has 7 states. [2019-12-07 18:13:10,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 18:13:10,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 18:13:10,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2019-12-07 18:13:10,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 15 letters. Loop has 3 letters. [2019-12-07 18:13:10,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:13:10,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 18 letters. Loop has 3 letters. [2019-12-07 18:13:10,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:13:10,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 15 letters. Loop has 6 letters. [2019-12-07 18:13:10,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:13:10,609 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 102 transitions. [2019-12-07 18:13:10,609 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2019-12-07 18:13:10,610 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 62 states and 82 transitions. [2019-12-07 18:13:10,610 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2019-12-07 18:13:10,610 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2019-12-07 18:13:10,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 82 transitions. [2019-12-07 18:13:10,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:13:10,611 INFO L688 BuchiCegarLoop]: Abstraction has 62 states and 82 transitions. [2019-12-07 18:13:10,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 82 transitions. [2019-12-07 18:13:10,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 53. [2019-12-07 18:13:10,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-12-07 18:13:10,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 72 transitions. [2019-12-07 18:13:10,614 INFO L711 BuchiCegarLoop]: Abstraction has 53 states and 72 transitions. [2019-12-07 18:13:10,614 INFO L591 BuchiCegarLoop]: Abstraction has 53 states and 72 transitions. [2019-12-07 18:13:10,614 INFO L424 BuchiCegarLoop]: ======== Iteration 8============ [2019-12-07 18:13:10,614 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states and 72 transitions. [2019-12-07 18:13:10,614 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2019-12-07 18:13:10,614 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:13:10,614 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:13:10,615 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:13:10,615 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:13:10,615 INFO L794 eck$LassoCheckResult]: Stem: 1160#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1157#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 1158#L532 assume !(main_~length1~0 < 1); 1159#L532-2 assume !(main_~length2~0 < 1); 1153#L535-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 1154#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 1169#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 1184#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 1165#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 1166#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 1170#L541-4 main_~i~1 := 0; 1183#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 1182#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 1181#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 1180#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 1179#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 1132#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 1133#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 1173#L520-1 assume !substring_#t~short6; 1171#L520-3 assume !substring_#t~short6;havoc substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5; 1147#L520-6 [2019-12-07 18:13:10,615 INFO L796 eck$LassoCheckResult]: Loop: 1147#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 1148#L524 assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 1142#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 1143#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 1138#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 1139#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 1177#L520-3 assume !substring_#t~short6;havoc substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5; 1147#L520-6 [2019-12-07 18:13:10,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:10,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1400070077, now seen corresponding path program 1 times [2019-12-07 18:13:10,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:10,615 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798009785] [2019-12-07 18:13:10,615 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:10,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:10,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:10,637 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:10,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:10,638 INFO L82 PathProgramCache]: Analyzing trace with hash 90141717, now seen corresponding path program 4 times [2019-12-07 18:13:10,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:10,638 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714318080] [2019-12-07 18:13:10,638 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:10,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:10,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:10,646 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:10,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:10,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1401956569, now seen corresponding path program 1 times [2019-12-07 18:13:10,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:10,647 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235119210] [2019-12-07 18:13:10,647 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:10,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:10,672 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 18:13:10,673 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235119210] [2019-12-07 18:13:10,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:13:10,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 18:13:10,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758739826] [2019-12-07 18:13:10,775 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2019-12-07 18:13:10,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:13:10,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:13:10,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:13:10,807 INFO L87 Difference]: Start difference. First operand 53 states and 72 transitions. cyclomatic complexity: 27 Second operand 5 states. [2019-12-07 18:13:10,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:13:10,826 INFO L93 Difference]: Finished difference Result 64 states and 83 transitions. [2019-12-07 18:13:10,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:13:10,827 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 83 transitions. [2019-12-07 18:13:10,827 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2019-12-07 18:13:10,828 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 58 states and 75 transitions. [2019-12-07 18:13:10,828 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2019-12-07 18:13:10,828 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2019-12-07 18:13:10,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 75 transitions. [2019-12-07 18:13:10,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:13:10,828 INFO L688 BuchiCegarLoop]: Abstraction has 58 states and 75 transitions. [2019-12-07 18:13:10,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 75 transitions. [2019-12-07 18:13:10,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 55. [2019-12-07 18:13:10,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-12-07 18:13:10,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 72 transitions. [2019-12-07 18:13:10,831 INFO L711 BuchiCegarLoop]: Abstraction has 55 states and 72 transitions. [2019-12-07 18:13:10,831 INFO L591 BuchiCegarLoop]: Abstraction has 55 states and 72 transitions. [2019-12-07 18:13:10,831 INFO L424 BuchiCegarLoop]: ======== Iteration 9============ [2019-12-07 18:13:10,831 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 55 states and 72 transitions. [2019-12-07 18:13:10,831 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2019-12-07 18:13:10,831 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:13:10,831 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:13:10,832 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:13:10,832 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:13:10,832 INFO L794 eck$LassoCheckResult]: Stem: 1287#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1284#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 1285#L532 assume !(main_~length1~0 < 1); 1286#L532-2 assume !(main_~length2~0 < 1); 1280#L535-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 1281#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 1291#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 1292#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 1293#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 1313#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 1312#L541-4 main_~i~1 := 0; 1311#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 1310#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 1309#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 1308#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 1307#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 1306#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 1303#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 1297#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 1294#L520-3 assume !substring_#t~short6;havoc substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5; 1274#L520-6 [2019-12-07 18:13:10,832 INFO L796 eck$LassoCheckResult]: Loop: 1274#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 1275#L524 assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 1270#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 1271#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 1298#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 1299#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 1304#L520-3 assume !substring_#t~short6;havoc substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5; 1274#L520-6 [2019-12-07 18:13:10,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:10,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1400070015, now seen corresponding path program 1 times [2019-12-07 18:13:10,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:10,832 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073963223] [2019-12-07 18:13:10,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:10,849 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:10,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:10,849 INFO L82 PathProgramCache]: Analyzing trace with hash 90141717, now seen corresponding path program 5 times [2019-12-07 18:13:10,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:10,849 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196988485] [2019-12-07 18:13:10,849 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:10,855 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:10,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:10,856 INFO L82 PathProgramCache]: Analyzing trace with hash 721898199, now seen corresponding path program 2 times [2019-12-07 18:13:10,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:10,856 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702337248] [2019-12-07 18:13:10,856 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:10,879 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:10,984 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2019-12-07 18:13:11,729 WARN L192 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 155 [2019-12-07 18:13:11,910 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-12-07 18:13:11,912 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:13:11,912 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:13:11,912 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:13:11,913 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:13:11,913 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:13:11,913 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:11,913 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:13:11,913 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:13:11,913 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-2.i_Iteration9_Lasso [2019-12-07 18:13:11,913 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:13:11,913 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:13:11,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:11,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:11,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:11,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:11,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:11,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:11,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:11,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:11,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:11,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:11,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:11,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:11,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:11,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:11,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:11,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:11,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:11,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:11,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:11,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:11,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:12,487 WARN L192 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 101 [2019-12-07 18:13:12,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:12,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:12,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:12,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:12,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:12,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:13,045 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2019-12-07 18:13:13,306 WARN L192 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2019-12-07 18:13:13,461 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:13:13,461 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 69 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 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:13,464 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:13,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:13,465 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:13,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:13,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:13,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:13,465 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:13,465 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:13,466 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 70 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 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:13,470 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:13,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:13,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:13,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:13,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:13,472 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:13,472 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:13,474 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 71 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 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:13,479 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:13,480 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:13,480 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:13,480 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:13,480 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:13,480 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:13,481 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:13,481 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:13,482 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 72 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 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:13,485 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:13,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:13,486 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:13,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:13,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:13,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:13,487 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:13,487 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:13,489 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 73 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 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:13,493 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:13,495 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:13,495 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:13,495 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:13,495 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:13,495 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:13,495 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:13,495 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:13,497 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 74 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 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:13,500 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:13,501 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:13,501 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:13,501 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:13,502 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:13,502 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:13,502 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:13,505 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 75 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 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:13,508 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:13,509 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:13,509 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:13,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:13,509 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:13,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:13,510 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:13,510 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:13,511 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 76 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 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:13,515 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:13,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:13,517 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:13,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:13,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:13,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:13,517 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:13,517 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:13,518 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 77 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 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:13,522 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:13,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:13,523 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:13,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:13,524 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:13,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:13,524 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:13,524 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:13,525 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 78 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 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:13,529 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:13,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:13,530 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:13,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:13,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:13,530 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:13,531 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:13,531 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:13,532 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 79 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 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:13,535 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:13,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:13,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:13,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:13,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:13,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:13,537 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:13,537 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:13,538 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 80 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 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:13,543 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:13,544 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:13,544 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:13,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:13,544 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:13,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:13,545 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:13,545 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:13,546 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 81 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 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:13,549 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:13,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:13,551 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:13,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:13,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:13,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:13,552 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:13,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:13,553 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 82 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 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:13,557 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:13,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:13,558 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:13,558 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:13,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:13,558 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:13,559 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:13,559 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:13,560 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 83 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 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:13,564 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:13,565 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:13,565 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:13,565 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:13,565 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:13,565 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:13,565 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:13,565 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:13,566 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 84 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 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:13,570 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:13,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:13,571 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:13,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:13,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:13,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:13,571 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:13,571 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:13,572 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 85 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 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:13,575 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:13,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:13,577 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:13,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:13,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:13,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:13,577 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:13,577 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:13,578 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 86 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 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:13,582 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:13,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:13,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:13,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:13,583 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:13,584 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:13,584 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:13,587 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 87 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 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:13,591 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:13,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:13,592 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:13,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:13,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:13,593 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:13,593 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:13,593 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:13,594 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 88 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 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:13,598 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:13,599 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:13,599 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:13,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:13,600 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:13,600 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:13,600 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:13,603 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 89 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 89 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:13,607 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:13,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:13,609 INFO L203 nArgumentSynthesizer]: 6 stem disjuncts [2019-12-07 18:13:13,609 INFO L204 nArgumentSynthesizer]: 12 loop disjuncts [2019-12-07 18:13:13,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:13,779 INFO L401 nArgumentSynthesizer]: We have 456 Motzkin's Theorem applications. [2019-12-07 18:13:13,780 INFO L402 nArgumentSynthesizer]: A total of 24 supporting invariants were added. [2019-12-07 18:13:14,364 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 90 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 90 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:14,372 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:14,374 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:14,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:14,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:14,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:14,375 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:14,375 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:14,379 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 91 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 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:14,382 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 [2019-12-07 18:13:14,383 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:14,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:14,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:14,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:14,388 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:14,388 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:14,398 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 92 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 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:14,401 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:14,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:14,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:14,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:14,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:14,403 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:14,403 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:14,406 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 93 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 93 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:14,409 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:14,410 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:14,410 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:14,410 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:14,410 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:14,411 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:14,411 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:14,414 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 94 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 94 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:14,418 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:14,418 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:14,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:14,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:14,419 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:14,420 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:14,420 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:14,424 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 95 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 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:14,430 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:14,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:14,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:14,432 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:14,432 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:14,438 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:14,438 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:14,455 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:13:14,469 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-12-07 18:13:14,469 INFO L444 ModelExtractionUtils]: 38 out of 49 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 96 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 96 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:14,471 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:13:14,473 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 18:13:14,473 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:13:14,473 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_substring_~ps2~0.base)_3, ULTIMATE.start_substring_~ps2~0.offset) = 1*v_rep(select #length ULTIMATE.start_substring_~ps2~0.base)_3 - 1*ULTIMATE.start_substring_~ps2~0.offset Supporting invariants [] [2019-12-07 18:13:14,504 INFO L297 tatePredicateManager]: 9 out of 11 supporting invariants were superfluous and have been removed [2019-12-07 18:13:14,507 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 18:13:14,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:14,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:14,536 INFO L264 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 18:13:14,537 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:13:14,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:14,545 INFO L264 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 13 conjunts are in the unsatisfiable core [2019-12-07 18:13:14,545 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:13:14,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:13:14,582 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 5 loop predicates [2019-12-07 18:13:14,582 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 55 states and 72 transitions. cyclomatic complexity: 25 Second operand 7 states. [2019-12-07 18:13:14,654 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 55 states and 72 transitions. cyclomatic complexity: 25. Second operand 7 states. Result 137 states and 181 transitions. Complement of second has 13 states. [2019-12-07 18:13:14,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 4 non-accepting loop states 2 accepting loop states [2019-12-07 18:13:14,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-07 18:13:14,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 44 transitions. [2019-12-07 18:13:14,654 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 44 transitions. Stem has 20 letters. Loop has 7 letters. [2019-12-07 18:13:14,655 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:13:14,655 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 44 transitions. Stem has 27 letters. Loop has 7 letters. [2019-12-07 18:13:14,655 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:13:14,655 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 44 transitions. Stem has 20 letters. Loop has 14 letters. [2019-12-07 18:13:14,656 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:13:14,656 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 137 states and 181 transitions. [2019-12-07 18:13:14,657 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 18 [2019-12-07 18:13:14,660 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 137 states to 111 states and 145 transitions. [2019-12-07 18:13:14,660 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2019-12-07 18:13:14,660 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2019-12-07 18:13:14,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 111 states and 145 transitions. [2019-12-07 18:13:14,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:13:14,661 INFO L688 BuchiCegarLoop]: Abstraction has 111 states and 145 transitions. [2019-12-07 18:13:14,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states and 145 transitions. [2019-12-07 18:13:14,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 67. [2019-12-07 18:13:14,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2019-12-07 18:13:14,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 87 transitions. [2019-12-07 18:13:14,666 INFO L711 BuchiCegarLoop]: Abstraction has 67 states and 87 transitions. [2019-12-07 18:13:14,666 INFO L591 BuchiCegarLoop]: Abstraction has 67 states and 87 transitions. [2019-12-07 18:13:14,666 INFO L424 BuchiCegarLoop]: ======== Iteration 10============ [2019-12-07 18:13:14,666 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 67 states and 87 transitions. [2019-12-07 18:13:14,666 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2019-12-07 18:13:14,667 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:13:14,667 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:13:14,667 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:13:14,667 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 18:13:14,668 INFO L794 eck$LassoCheckResult]: Stem: 1651#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1648#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 1649#L532 assume !(main_~length1~0 < 1); 1650#L532-2 assume !(main_~length2~0 < 1); 1644#L535-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 1645#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 1655#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 1656#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 1670#L541-4 main_~i~1 := 0; 1669#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 1668#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 1667#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 1647#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 1631#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 1632#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 1687#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 1686#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 1685#L520-3 assume !substring_#t~short6;havoc substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5; 1637#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 1638#L524 assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 1641#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 1623#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 1624#L520-5 [2019-12-07 18:13:14,668 INFO L796 eck$LassoCheckResult]: Loop: 1624#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 1629#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 1652#L520-3 assume !!substring_#t~short6;havoc substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;substring_#t~post7.base, substring_#t~post7.offset := substring_~pt~0.base, substring_~pt~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_#t~post7.base, 1 + substring_#t~post7.offset;havoc substring_#t~post7.base, substring_#t~post7.offset;substring_#t~post8.base, substring_#t~post8.offset := substring_~ps2~0.base, substring_~ps2~0.offset;substring_~ps2~0.base, substring_~ps2~0.offset := substring_#t~post8.base, 1 + substring_#t~post8.offset;havoc substring_#t~post8.base, substring_#t~post8.offset; 1624#L520-5 [2019-12-07 18:13:14,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:14,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1446642933, now seen corresponding path program 3 times [2019-12-07 18:13:14,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:14,668 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247722880] [2019-12-07 18:13:14,668 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:14,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:14,829 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 18:13:14,829 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247722880] [2019-12-07 18:13:14,829 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441894709] [2019-12-07 18:13:14,829 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 97 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 97 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:13:14,864 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-12-07 18:13:14,864 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:13:14,865 INFO L264 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 31 conjunts are in the unsatisfiable core [2019-12-07 18:13:14,866 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:13:14,870 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-12-07 18:13:14,870 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 18:13:14,876 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:13:14,877 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 18:13:14,877 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:8 [2019-12-07 18:13:14,919 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 21 [2019-12-07 18:13:14,919 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 18:13:14,925 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:13:14,926 INFO L534 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2019-12-07 18:13:14,926 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:47, output treesize:31 [2019-12-07 18:13:14,992 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:13:14,992 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 21 [2019-12-07 18:13:14,992 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-12-07 18:13:15,002 INFO L614 ElimStorePlain]: treesize reduction 8, result has 63.6 percent of original size [2019-12-07 18:13:15,003 INFO L534 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 18:13:15,003 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:38, output treesize:3 [2019-12-07 18:13:15,016 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 18:13:15,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:13:15,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2019-12-07 18:13:15,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405934990] [2019-12-07 18:13:15,017 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 18:13:15,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:15,017 INFO L82 PathProgramCache]: Analyzing trace with hash 87489, now seen corresponding path program 2 times [2019-12-07 18:13:15,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:15,017 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459700341] [2019-12-07 18:13:15,017 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:15,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:15,022 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:15,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:13:15,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-12-07 18:13:15,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2019-12-07 18:13:15,107 INFO L87 Difference]: Start difference. First operand 67 states and 87 transitions. cyclomatic complexity: 29 Second operand 16 states. [2019-12-07 18:13:15,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:13:15,406 INFO L93 Difference]: Finished difference Result 64 states and 80 transitions. [2019-12-07 18:13:15,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 18:13:15,406 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 80 transitions. [2019-12-07 18:13:15,407 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2019-12-07 18:13:15,407 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 47 states and 60 transitions. [2019-12-07 18:13:15,407 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2019-12-07 18:13:15,408 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2019-12-07 18:13:15,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 60 transitions. [2019-12-07 18:13:15,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:13:15,408 INFO L688 BuchiCegarLoop]: Abstraction has 47 states and 60 transitions. [2019-12-07 18:13:15,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 60 transitions. [2019-12-07 18:13:15,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2019-12-07 18:13:15,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-12-07 18:13:15,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 59 transitions. [2019-12-07 18:13:15,410 INFO L711 BuchiCegarLoop]: Abstraction has 46 states and 59 transitions. [2019-12-07 18:13:15,410 INFO L591 BuchiCegarLoop]: Abstraction has 46 states and 59 transitions. [2019-12-07 18:13:15,410 INFO L424 BuchiCegarLoop]: ======== Iteration 11============ [2019-12-07 18:13:15,410 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 59 transitions. [2019-12-07 18:13:15,410 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2019-12-07 18:13:15,410 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:13:15,410 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:13:15,411 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:13:15,411 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:13:15,411 INFO L794 eck$LassoCheckResult]: Stem: 1875#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1872#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 1873#L532 assume !(main_~length1~0 < 1); 1874#L532-2 assume !(main_~length2~0 < 1); 1868#L535-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 1869#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 1880#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 1881#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 1884#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 1892#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 1854#L541-4 main_~i~1 := 0; 1855#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 1866#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 1867#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 1870#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 1871#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 1891#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 1886#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 1878#L520-1 assume !substring_#t~short6; 1879#L520-3 assume !!substring_#t~short6;havoc substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;substring_#t~post7.base, substring_#t~post7.offset := substring_~pt~0.base, substring_~pt~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_#t~post7.base, 1 + substring_#t~post7.offset;havoc substring_#t~post7.base, substring_#t~post7.offset;substring_#t~post8.base, substring_#t~post8.offset := substring_~ps2~0.base, substring_~ps2~0.offset;substring_~ps2~0.base, substring_~ps2~0.offset := substring_#t~post8.base, 1 + substring_#t~post8.offset;havoc substring_#t~post8.base, substring_#t~post8.offset; 1887#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 1888#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 1890#L520-3 assume !substring_#t~short6;havoc substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5; 1889#L520-6 [2019-12-07 18:13:15,411 INFO L796 eck$LassoCheckResult]: Loop: 1889#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 1865#L524 assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 1860#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 1850#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 1851#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 1893#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 1894#L520-3 assume !substring_#t~short6;havoc substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5; 1889#L520-6 [2019-12-07 18:13:15,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:15,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1060369729, now seen corresponding path program 1 times [2019-12-07 18:13:15,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:15,412 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275036758] [2019-12-07 18:13:15,412 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:15,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:15,439 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 18:13:15,439 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275036758] [2019-12-07 18:13:15,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:13:15,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:13:15,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301850452] [2019-12-07 18:13:15,440 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 18:13:15,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:15,440 INFO L82 PathProgramCache]: Analyzing trace with hash 90141717, now seen corresponding path program 6 times [2019-12-07 18:13:15,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:15,440 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452023078] [2019-12-07 18:13:15,440 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:15,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:15,445 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:15,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:13:15,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:13:15,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:13:15,577 INFO L87 Difference]: Start difference. First operand 46 states and 59 transitions. cyclomatic complexity: 19 Second operand 3 states. [2019-12-07 18:13:15,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:13:15,585 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2019-12-07 18:13:15,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:13:15,585 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 57 transitions. [2019-12-07 18:13:15,585 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2019-12-07 18:13:15,586 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 44 states and 53 transitions. [2019-12-07 18:13:15,586 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2019-12-07 18:13:15,586 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2019-12-07 18:13:15,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 53 transitions. [2019-12-07 18:13:15,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:13:15,586 INFO L688 BuchiCegarLoop]: Abstraction has 44 states and 53 transitions. [2019-12-07 18:13:15,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states and 53 transitions. [2019-12-07 18:13:15,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2019-12-07 18:13:15,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-12-07 18:13:15,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2019-12-07 18:13:15,588 INFO L711 BuchiCegarLoop]: Abstraction has 44 states and 53 transitions. [2019-12-07 18:13:15,588 INFO L591 BuchiCegarLoop]: Abstraction has 44 states and 53 transitions. [2019-12-07 18:13:15,588 INFO L424 BuchiCegarLoop]: ======== Iteration 12============ [2019-12-07 18:13:15,588 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 53 transitions. [2019-12-07 18:13:15,588 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2019-12-07 18:13:15,588 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:13:15,588 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:13:15,589 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:13:15,589 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:13:15,589 INFO L794 eck$LassoCheckResult]: Stem: 1975#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1972#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 1973#L532 assume !(main_~length1~0 < 1); 1974#L532-2 assume !(main_~length2~0 < 1); 1969#L535-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 1970#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 1979#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 1980#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 1984#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 1987#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 1954#L541-4 main_~i~1 := 0; 1955#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 1967#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 1968#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 1971#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 1962#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 1963#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 1990#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 1977#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 1978#L520-3 assume !!substring_#t~short6;havoc substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;substring_#t~post7.base, substring_#t~post7.offset := substring_~pt~0.base, substring_~pt~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_#t~post7.base, 1 + substring_#t~post7.offset;havoc substring_#t~post7.base, substring_#t~post7.offset;substring_#t~post8.base, substring_#t~post8.offset := substring_~ps2~0.base, substring_~ps2~0.offset;substring_~ps2~0.base, substring_~ps2~0.offset := substring_#t~post8.base, 1 + substring_#t~post8.offset;havoc substring_#t~post8.base, substring_#t~post8.offset; 1983#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 1993#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 1986#L520-3 assume !substring_#t~short6;havoc substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5; 1985#L520-6 [2019-12-07 18:13:15,589 INFO L796 eck$LassoCheckResult]: Loop: 1985#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 1965#L524 assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 1966#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 1950#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 1951#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 1956#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 1976#L520-3 assume !substring_#t~short6;havoc substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5; 1985#L520-6 [2019-12-07 18:13:15,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:15,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1058522687, now seen corresponding path program 1 times [2019-12-07 18:13:15,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:15,589 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681178261] [2019-12-07 18:13:15,589 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:15,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:15,707 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-12-07 18:13:15,707 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681178261] [2019-12-07 18:13:15,707 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757814196] [2019-12-07 18:13:15,707 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:13:15,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:15,743 INFO L264 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 31 conjunts are in the unsatisfiable core [2019-12-07 18:13:15,744 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:13:15,796 INFO L343 Elim1Store]: treesize reduction 40, result has 20.0 percent of original size [2019-12-07 18:13:15,796 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 21 [2019-12-07 18:13:15,796 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 18:13:15,802 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:13:15,802 INFO L534 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2019-12-07 18:13:15,802 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:43, output treesize:27 [2019-12-07 18:13:15,929 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:15,944 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-12-07 18:13:15,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:13:15,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 21 [2019-12-07 18:13:15,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501552050] [2019-12-07 18:13:15,945 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 18:13:15,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:15,945 INFO L82 PathProgramCache]: Analyzing trace with hash 90141717, now seen corresponding path program 7 times [2019-12-07 18:13:15,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:15,945 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084503787] [2019-12-07 18:13:15,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:15,951 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:16,082 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2019-12-07 18:13:16,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:13:16,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-12-07 18:13:16,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2019-12-07 18:13:16,114 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. cyclomatic complexity: 15 Second operand 21 states. [2019-12-07 18:13:16,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:13:16,498 INFO L93 Difference]: Finished difference Result 82 states and 94 transitions. [2019-12-07 18:13:16,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-12-07 18:13:16,499 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 94 transitions. [2019-12-07 18:13:16,499 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2019-12-07 18:13:16,500 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 47 states and 55 transitions. [2019-12-07 18:13:16,500 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2019-12-07 18:13:16,500 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2019-12-07 18:13:16,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 55 transitions. [2019-12-07 18:13:16,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:13:16,500 INFO L688 BuchiCegarLoop]: Abstraction has 47 states and 55 transitions. [2019-12-07 18:13:16,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 55 transitions. [2019-12-07 18:13:16,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2019-12-07 18:13:16,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-12-07 18:13:16,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2019-12-07 18:13:16,502 INFO L711 BuchiCegarLoop]: Abstraction has 46 states and 54 transitions. [2019-12-07 18:13:16,502 INFO L591 BuchiCegarLoop]: Abstraction has 46 states and 54 transitions. [2019-12-07 18:13:16,502 INFO L424 BuchiCegarLoop]: ======== Iteration 13============ [2019-12-07 18:13:16,502 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 54 transitions. [2019-12-07 18:13:16,502 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2019-12-07 18:13:16,502 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:13:16,502 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:13:16,502 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:13:16,503 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:13:16,503 INFO L794 eck$LassoCheckResult]: Stem: 2218#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2215#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 2216#L532 assume !(main_~length1~0 < 1); 2217#L532-2 assume !(main_~length2~0 < 1); 2210#L535-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 2211#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 2221#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 2222#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 2225#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 2234#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 2196#L541-4 main_~i~1 := 0; 2197#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 2208#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 2209#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 2212#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 2228#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 2213#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 2214#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 2233#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 2231#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 2201#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 2220#L520-3 assume !!substring_#t~short6;havoc substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;substring_#t~post7.base, substring_#t~post7.offset := substring_~pt~0.base, substring_~pt~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_#t~post7.base, 1 + substring_#t~post7.offset;havoc substring_#t~post7.base, substring_#t~post7.offset;substring_#t~post8.base, substring_#t~post8.offset := substring_~ps2~0.base, substring_~ps2~0.offset;substring_~ps2~0.base, substring_~ps2~0.offset := substring_#t~post8.base, 1 + substring_#t~post8.offset;havoc substring_#t~post8.base, substring_#t~post8.offset; 2199#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 2200#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 2219#L520-3 assume !substring_#t~short6;havoc substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5; 2230#L520-6 [2019-12-07 18:13:16,503 INFO L796 eck$LassoCheckResult]: Loop: 2230#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 2207#L524 assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 2202#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 2192#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 2193#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 2198#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 2237#L520-3 assume !substring_#t~short6;havoc substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5; 2230#L520-6 [2019-12-07 18:13:16,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:16,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1726774431, now seen corresponding path program 2 times [2019-12-07 18:13:16,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:16,503 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553508737] [2019-12-07 18:13:16,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:16,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:16,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:16,519 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:16,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:16,519 INFO L82 PathProgramCache]: Analyzing trace with hash 90141717, now seen corresponding path program 8 times [2019-12-07 18:13:16,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:16,519 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855474657] [2019-12-07 18:13:16,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:16,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:16,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:16,524 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:16,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:16,524 INFO L82 PathProgramCache]: Analyzing trace with hash -816618315, now seen corresponding path program 1 times [2019-12-07 18:13:16,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:16,524 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915128022] [2019-12-07 18:13:16,525 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:16,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:16,544 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:18,181 WARN L192 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 266 DAG size of output: 193 [2019-12-07 18:13:18,447 WARN L192 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2019-12-07 18:13:18,450 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:13:18,450 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:13:18,450 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:13:18,450 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:13:18,450 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:13:18,450 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:18,450 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:13:18,450 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:13:18,450 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-2.i_Iteration13_Lasso [2019-12-07 18:13:18,450 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:13:18,450 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:13:18,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:18,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:18,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:18,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:18,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:18,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:18,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:18,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:18,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:18,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:18,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:18,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:18,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:18,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:18,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:18,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:18,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:18,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:18,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:18,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:18,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:18,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:19,069 WARN L192 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 105 [2019-12-07 18:13:19,288 WARN L192 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 96 [2019-12-07 18:13:19,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:19,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:19,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:19,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:19,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:19,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:19,477 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-12-07 18:13:20,161 WARN L192 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2019-12-07 18:13:20,237 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:13:20,237 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 99 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 99 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:20,240 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:20,240 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:20,241 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:20,241 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:20,241 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:20,241 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:20,242 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:20,244 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 100 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 100 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:20,247 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:20,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:20,249 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:20,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:20,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:20,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:20,249 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:20,249 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:20,250 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 101 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 101 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:20,253 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 [2019-12-07 18:13:20,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:20,254 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:20,254 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:20,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:20,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:20,255 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:20,255 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:20,256 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 102 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 102 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:20,259 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:20,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:20,260 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:20,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:20,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:20,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:20,260 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:20,260 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:20,261 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 103 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 103 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:20,265 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:20,266 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:20,266 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:20,266 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:20,266 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:20,266 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:20,267 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:20,267 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:20,268 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 104 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 104 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:20,271 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:20,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:20,272 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:20,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:20,272 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:20,272 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:20,272 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:20,272 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:20,273 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 105 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 105 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:20,276 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:20,277 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:20,277 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:20,277 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:20,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:20,278 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:20,278 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:20,278 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:20,279 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 106 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 106 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:20,282 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:20,283 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:20,283 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:20,283 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:20,283 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:20,283 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:20,283 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:20,284 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:20,284 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 107 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 107 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:20,288 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:20,289 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:20,289 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:20,289 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:20,289 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:20,290 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:20,290 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:20,292 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 108 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 108 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:20,296 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:20,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:20,297 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:20,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:20,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:20,297 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:20,297 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:20,297 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:20,298 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 109 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 109 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:20,301 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:20,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:20,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:20,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:20,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:20,303 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:20,303 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:20,305 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 110 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 110 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:20,309 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:20,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:20,310 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:20,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:20,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:20,310 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:20,310 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:20,310 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:20,311 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 111 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 111 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:20,315 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:20,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:20,316 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:20,316 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:20,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:20,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:20,316 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:20,316 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:20,317 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 112 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 112 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:20,320 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:20,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:20,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:20,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:20,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:20,322 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:20,322 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:20,324 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 113 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 113 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:20,328 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:20,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:20,329 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:20,329 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:20,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:20,329 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:20,329 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:20,329 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:20,330 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 114 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 114 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:20,333 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:20,334 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:20,334 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:20,334 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:20,334 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:20,334 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:20,335 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:20,335 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:20,336 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 115 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 115 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:20,340 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:20,341 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:20,341 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:20,341 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:20,341 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:20,341 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:20,342 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:20,342 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:20,343 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 116 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 116 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:20,347 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:20,348 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:20,348 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:20,348 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:20,348 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:20,348 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:20,349 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:20,349 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:20,350 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 117 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 117 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:20,354 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:20,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:20,355 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:20,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:20,355 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:20,355 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:20,355 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:20,356 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:20,357 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 118 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 118 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:20,360 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:20,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:20,361 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:20,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:20,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:20,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:20,361 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:20,361 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:20,362 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 119 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 119 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:20,365 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:20,367 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:20,367 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:20,367 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:20,367 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:20,367 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:20,367 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:20,367 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:20,369 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 120 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 120 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:20,372 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:20,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:20,373 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:20,373 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:20,373 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:20,374 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:20,374 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:20,379 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 121 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 121 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:20,382 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 [2019-12-07 18:13:20,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:20,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:20,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:20,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:20,394 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:20,394 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:20,419 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:13:20,506 INFO L443 ModelExtractionUtils]: Simplification made 33 calls to the SMT solver. [2019-12-07 18:13:20,506 INFO L444 ModelExtractionUtils]: 13 out of 67 variables were initially zero. Simplification set additionally 51 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 122 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 122 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:20,508 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:13:20,510 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 18:13:20,510 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:13:20,510 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_substring_~ps~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_6) = -1*ULTIMATE.start_substring_~ps~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_6 Supporting invariants [] [2019-12-07 18:13:20,578 INFO L297 tatePredicateManager]: 23 out of 24 supporting invariants were superfluous and have been removed [2019-12-07 18:13:20,580 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 18:13:20,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:20,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:20,614 INFO L264 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 18:13:20,615 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:13:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:20,631 INFO L264 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 18:13:20,631 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:13:20,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:13:20,658 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2019-12-07 18:13:20,658 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 46 states and 54 transitions. cyclomatic complexity: 14 Second operand 7 states. [2019-12-07 18:13:20,702 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 46 states and 54 transitions. cyclomatic complexity: 14. Second operand 7 states. Result 66 states and 79 transitions. Complement of second has 8 states. [2019-12-07 18:13:20,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 3 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 18:13:20,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-07 18:13:20,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 29 transitions. [2019-12-07 18:13:20,703 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 25 letters. Loop has 7 letters. [2019-12-07 18:13:20,703 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:13:20,703 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 32 letters. Loop has 7 letters. [2019-12-07 18:13:20,703 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:13:20,704 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 25 letters. Loop has 14 letters. [2019-12-07 18:13:20,704 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:13:20,704 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 79 transitions. [2019-12-07 18:13:20,704 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-12-07 18:13:20,705 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 52 states and 61 transitions. [2019-12-07 18:13:20,705 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2019-12-07 18:13:20,705 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2019-12-07 18:13:20,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 61 transitions. [2019-12-07 18:13:20,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:13:20,705 INFO L688 BuchiCegarLoop]: Abstraction has 52 states and 61 transitions. [2019-12-07 18:13:20,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 61 transitions. [2019-12-07 18:13:20,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 36. [2019-12-07 18:13:20,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-07 18:13:20,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2019-12-07 18:13:20,706 INFO L711 BuchiCegarLoop]: Abstraction has 36 states and 43 transitions. [2019-12-07 18:13:20,706 INFO L591 BuchiCegarLoop]: Abstraction has 36 states and 43 transitions. [2019-12-07 18:13:20,706 INFO L424 BuchiCegarLoop]: ======== Iteration 14============ [2019-12-07 18:13:20,706 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 43 transitions. [2019-12-07 18:13:20,707 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 18:13:20,707 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:13:20,707 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:13:20,707 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:13:20,707 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 18:13:20,707 INFO L794 eck$LassoCheckResult]: Stem: 2554#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2551#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 2552#L532 assume !(main_~length1~0 < 1); 2553#L532-2 assume !(main_~length2~0 < 1); 2547#L535-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 2548#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 2558#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 2559#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 2561#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 2562#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 2536#L541-4 main_~i~1 := 0; 2537#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 2545#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 2546#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 2549#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 2563#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 2550#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 2540#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 2531#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 2532#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 2566#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 2565#L520-3 assume !substring_#t~short6;havoc substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5; 2542#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 2543#L524 assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 2541#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 2533#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 2535#L520-5 [2019-12-07 18:13:20,707 INFO L796 eck$LassoCheckResult]: Loop: 2535#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 2538#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 2555#L520-3 assume !!substring_#t~short6;havoc substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;substring_#t~post7.base, substring_#t~post7.offset := substring_~pt~0.base, substring_~pt~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_#t~post7.base, 1 + substring_#t~post7.offset;havoc substring_#t~post7.base, substring_#t~post7.offset;substring_#t~post8.base, substring_#t~post8.offset := substring_~ps2~0.base, substring_~ps2~0.offset;substring_~ps2~0.base, substring_~ps2~0.offset := substring_#t~post8.base, 1 + substring_#t~post8.offset;havoc substring_#t~post8.base, substring_#t~post8.offset; 2535#L520-5 [2019-12-07 18:13:20,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:20,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1991784185, now seen corresponding path program 4 times [2019-12-07 18:13:20,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:20,708 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321522718] [2019-12-07 18:13:20,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:20,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:20,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:20,724 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:20,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:20,724 INFO L82 PathProgramCache]: Analyzing trace with hash 87489, now seen corresponding path program 3 times [2019-12-07 18:13:20,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:20,724 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385337336] [2019-12-07 18:13:20,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:20,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:20,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:20,728 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:20,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:20,728 INFO L82 PathProgramCache]: Analyzing trace with hash 2025563899, now seen corresponding path program 2 times [2019-12-07 18:13:20,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:20,728 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950392675] [2019-12-07 18:13:20,728 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:20,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:20,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:20,745 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:21,867 WARN L192 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 250 DAG size of output: 185 [2019-12-07 18:13:22,082 WARN L192 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2019-12-07 18:13:22,085 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:13:22,085 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:13:22,085 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:13:22,085 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:13:22,085 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:13:22,085 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:22,085 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:13:22,085 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:13:22,085 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-2.i_Iteration14_Lasso [2019-12-07 18:13:22,085 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:13:22,085 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:13:22,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:22,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:22,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:22,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:22,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:22,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:22,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:22,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:22,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:22,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:22,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:22,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:22,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:22,774 WARN L192 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 104 [2019-12-07 18:13:22,958 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2019-12-07 18:13:22,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:22,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:22,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:22,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:22,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:22,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:22,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:22,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:22,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:22,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:22,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:22,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:22,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:22,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:23,172 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-12-07 18:13:23,736 WARN L192 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2019-12-07 18:13:23,773 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:13:23,773 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 123 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 123 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:23,777 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:23,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:23,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:23,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:23,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:23,781 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:23,781 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:23,785 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 124 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 124 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:23,791 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:23,793 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:23,793 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:23,793 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:23,793 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:23,793 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:23,794 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:23,794 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:23,796 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 125 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 125 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:23,801 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:23,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:23,803 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:23,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:23,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:23,803 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:23,804 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:23,804 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:23,805 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 126 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 126 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:23,811 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:23,813 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:23,813 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:23,813 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:23,813 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:23,813 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:23,813 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:23,813 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:23,815 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 127 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 127 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:23,821 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:23,823 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:23,823 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:23,823 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:23,823 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:23,824 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:23,825 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:23,829 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 128 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 128 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:23,834 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:23,836 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:23,836 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:23,836 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:23,836 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:23,836 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:23,837 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:23,837 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:23,838 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 129 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 129 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:23,844 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:23,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:23,846 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:23,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:23,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:23,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:23,847 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:23,847 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:23,848 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 130 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 130 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:23,853 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:23,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:23,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:23,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:23,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:23,856 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:23,857 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:23,861 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 131 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 131 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:23,866 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:23,868 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:23,868 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:23,868 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:23,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:23,869 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:23,869 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:23,869 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:23,871 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 132 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 132 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:23,876 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:23,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:23,877 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:23,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:23,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:23,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:23,878 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:23,878 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:23,879 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 133 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 133 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:23,883 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:23,884 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:23,885 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:23,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:23,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:23,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:23,885 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:23,885 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:23,886 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 134 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 134 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:23,890 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:23,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:23,891 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:23,891 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:23,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:23,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:23,892 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:23,892 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:23,892 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 135 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 135 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:23,896 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:23,897 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:23,897 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:23,897 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:23,897 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:23,902 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:23,902 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:23,913 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 136 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 136 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:23,917 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:23,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:23,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:23,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:23,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:23,919 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:23,919 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:23,922 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 137 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 137 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:23,925 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:23,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:23,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:23,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:23,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:23,927 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:23,927 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:23,929 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 138 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 138 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:23,933 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:23,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:23,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:23,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:23,934 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:23,935 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:23,935 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:23,937 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 139 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 139 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:23,940 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:23,941 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:23,942 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:23,942 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:23,942 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:23,943 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:23,943 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:23,948 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 140 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 140 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:23,951 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:23,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:23,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:23,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:23,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:23,960 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:23,960 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:23,979 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:13:24,071 INFO L443 ModelExtractionUtils]: Simplification made 42 calls to the SMT solver. [2019-12-07 18:13:24,071 INFO L444 ModelExtractionUtils]: 21 out of 61 variables were initially zero. Simplification set additionally 35 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 141 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 141 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:24,074 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:13:24,077 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 18:13:24,077 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:13:24,077 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_substring_~ps2~0.offset, ULTIMATE.start_main_~length2~0) = -1*ULTIMATE.start_substring_~ps2~0.offset + 1*ULTIMATE.start_main_~length2~0 Supporting invariants [1*ULTIMATE.start_main_~length2~0 - 1*v_rep(select #length ULTIMATE.start_substring_~s.base)_1 >= 0] [2019-12-07 18:13:24,228 INFO L297 tatePredicateManager]: 41 out of 44 supporting invariants were superfluous and have been removed [2019-12-07 18:13:24,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:24,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:24,267 INFO L264 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 61 conjunts are in the unsatisfiable core [2019-12-07 18:13:24,268 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:13:24,280 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:13:24,281 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-12-07 18:13:24,281 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 18:13:24,297 INFO L614 ElimStorePlain]: treesize reduction 10, result has 71.4 percent of original size [2019-12-07 18:13:24,297 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 18:13:24,297 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:25 [2019-12-07 18:13:24,423 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:24,438 INFO L343 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2019-12-07 18:13:24,438 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 21 [2019-12-07 18:13:24,439 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 18:13:24,452 INFO L343 Elim1Store]: treesize reduction 46, result has 20.7 percent of original size [2019-12-07 18:13:24,453 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 23 [2019-12-07 18:13:24,453 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 18:13:24,482 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:13:24,483 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2019-12-07 18:13:24,483 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:126, output treesize:92 [2019-12-07 18:13:24,609 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:24,610 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:24,611 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:24,612 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:24,613 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:24,622 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 18:13:24,625 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 18:13:24,652 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:13:24,653 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 29 [2019-12-07 18:13:24,653 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 18:13:24,657 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 18:13:24,664 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:13:24,664 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 1 [2019-12-07 18:13:24,664 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 18:13:24,703 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:13:24,708 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 18:13:24,728 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:13:24,728 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 32 treesize of output 64 [2019-12-07 18:13:24,729 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 18:13:24,729 INFO L534 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-12-07 18:13:24,733 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 18:13:24,749 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:13:24,750 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 65 [2019-12-07 18:13:24,750 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 18:13:24,750 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:24,751 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:24,751 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:24,751 INFO L534 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2019-12-07 18:13:24,805 INFO L614 ElimStorePlain]: treesize reduction 21, result has 73.8 percent of original size [2019-12-07 18:13:24,806 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2019-12-07 18:13:24,806 INFO L239 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:197, output treesize:56 [2019-12-07 18:13:24,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:24,886 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 18:13:24,886 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:13:24,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:13:24,906 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.12 stem predicates 2 loop predicates [2019-12-07 18:13:24,906 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 43 transitions. cyclomatic complexity: 12 Second operand 15 states. [2019-12-07 18:13:25,307 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2019-12-07 18:13:25,387 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 43 transitions. cyclomatic complexity: 12. Second operand 15 states. Result 68 states and 82 transitions. Complement of second has 16 states. [2019-12-07 18:13:25,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 9 stem states 2 non-accepting loop states 2 accepting loop states [2019-12-07 18:13:25,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 18:13:25,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 40 transitions. [2019-12-07 18:13:25,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 40 transitions. Stem has 26 letters. Loop has 3 letters. [2019-12-07 18:13:25,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:13:25,388 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 18:13:25,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:25,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:25,425 INFO L264 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 61 conjunts are in the unsatisfiable core [2019-12-07 18:13:25,426 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:13:25,437 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:13:25,437 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-12-07 18:13:25,437 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 18:13:25,457 INFO L614 ElimStorePlain]: treesize reduction 10, result has 71.4 percent of original size [2019-12-07 18:13:25,458 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 18:13:25,458 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:25 [2019-12-07 18:13:25,613 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:25,634 INFO L343 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2019-12-07 18:13:25,635 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 21 [2019-12-07 18:13:25,635 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 18:13:25,653 INFO L343 Elim1Store]: treesize reduction 46, result has 20.7 percent of original size [2019-12-07 18:13:25,653 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 23 [2019-12-07 18:13:25,653 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 18:13:25,685 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:13:25,685 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2019-12-07 18:13:25,685 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:126, output treesize:92 [2019-12-07 18:13:25,794 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:25,794 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:25,795 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:25,796 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:25,796 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:25,803 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 18:13:25,806 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 18:13:25,815 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:13:25,815 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 29 [2019-12-07 18:13:25,816 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 18:13:25,820 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 18:13:25,826 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:13:25,827 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 1 [2019-12-07 18:13:25,827 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 18:13:25,863 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:13:25,868 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 18:13:25,890 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:13:25,890 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 32 treesize of output 64 [2019-12-07 18:13:25,891 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:25,891 INFO L534 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-12-07 18:13:25,895 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 18:13:25,910 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:13:25,910 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 65 [2019-12-07 18:13:25,911 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:25,911 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:25,911 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 18:13:25,912 INFO L534 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-12-07 18:13:25,961 INFO L614 ElimStorePlain]: treesize reduction 15, result has 79.7 percent of original size [2019-12-07 18:13:25,962 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2019-12-07 18:13:25,962 INFO L239 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:197, output treesize:56 [2019-12-07 18:13:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:26,094 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 18:13:26,095 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:13:26,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:13:26,114 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.12 stem predicates 2 loop predicates [2019-12-07 18:13:26,114 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 43 transitions. cyclomatic complexity: 12 Second operand 15 states. [2019-12-07 18:13:26,621 WARN L192 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2019-12-07 18:13:26,762 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 43 transitions. cyclomatic complexity: 12. Second operand 15 states. Result 68 states and 82 transitions. Complement of second has 16 states. [2019-12-07 18:13:26,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 9 stem states 2 non-accepting loop states 2 accepting loop states [2019-12-07 18:13:26,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 18:13:26,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 40 transitions. [2019-12-07 18:13:26,763 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 40 transitions. Stem has 26 letters. Loop has 3 letters. [2019-12-07 18:13:26,763 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:13:26,763 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 18:13:26,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:26,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:26,813 INFO L264 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 61 conjunts are in the unsatisfiable core [2019-12-07 18:13:26,815 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:13:26,829 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:13:26,829 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-12-07 18:13:26,829 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 18:13:26,853 INFO L614 ElimStorePlain]: treesize reduction 10, result has 71.4 percent of original size [2019-12-07 18:13:26,853 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 18:13:26,853 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:25 [2019-12-07 18:13:27,020 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:27,041 INFO L343 Elim1Store]: treesize reduction 46, result has 20.7 percent of original size [2019-12-07 18:13:27,041 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 23 [2019-12-07 18:13:27,041 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 18:13:27,056 INFO L343 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2019-12-07 18:13:27,056 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 21 [2019-12-07 18:13:27,056 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 18:13:27,095 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:13:27,096 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2019-12-07 18:13:27,096 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:126, output treesize:92 [2019-12-07 18:13:27,365 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:27,366 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:27,368 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:27,369 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:27,370 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:27,387 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 18:13:27,396 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 18:13:27,413 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:13:27,413 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 1 [2019-12-07 18:13:27,413 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 18:13:27,419 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 18:13:27,428 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:13:27,428 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 29 [2019-12-07 18:13:27,428 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 18:13:27,468 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:13:27,472 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 18:13:27,493 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:13:27,493 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 32 treesize of output 64 [2019-12-07 18:13:27,493 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:27,493 INFO L534 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-12-07 18:13:27,497 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 18:13:27,513 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:13:27,514 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 65 [2019-12-07 18:13:27,514 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:27,514 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:13:27,514 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 18:13:27,515 INFO L534 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-12-07 18:13:27,565 INFO L614 ElimStorePlain]: treesize reduction 15, result has 79.7 percent of original size [2019-12-07 18:13:27,565 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2019-12-07 18:13:27,565 INFO L239 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:197, output treesize:56 [2019-12-07 18:13:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:27,650 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 18:13:27,650 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:13:27,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:13:27,671 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.12 stem predicates 2 loop predicates [2019-12-07 18:13:27,671 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 43 transitions. cyclomatic complexity: 12 Second operand 15 states. [2019-12-07 18:13:28,790 WARN L192 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2019-12-07 18:13:31,684 WARN L192 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 93 DAG size of output: 82 [2019-12-07 18:13:31,917 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2019-12-07 18:13:32,258 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 43 transitions. cyclomatic complexity: 12. Second operand 15 states. Result 119 states and 137 transitions. Complement of second has 32 states. [2019-12-07 18:13:32,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 18 states 14 stem states 2 non-accepting loop states 2 accepting loop states [2019-12-07 18:13:32,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 18:13:32,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 81 transitions. [2019-12-07 18:13:32,259 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 81 transitions. Stem has 26 letters. Loop has 3 letters. [2019-12-07 18:13:32,260 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:13:32,260 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 81 transitions. Stem has 29 letters. Loop has 3 letters. [2019-12-07 18:13:32,260 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:13:32,260 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 81 transitions. Stem has 26 letters. Loop has 6 letters. [2019-12-07 18:13:32,260 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:13:32,260 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 119 states and 137 transitions. [2019-12-07 18:13:32,261 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-12-07 18:13:32,261 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 119 states to 78 states and 91 transitions. [2019-12-07 18:13:32,261 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2019-12-07 18:13:32,262 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2019-12-07 18:13:32,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 78 states and 91 transitions. [2019-12-07 18:13:32,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:13:32,262 INFO L688 BuchiCegarLoop]: Abstraction has 78 states and 91 transitions. [2019-12-07 18:13:32,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states and 91 transitions. [2019-12-07 18:13:32,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 48. [2019-12-07 18:13:32,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-12-07 18:13:32,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2019-12-07 18:13:32,264 INFO L711 BuchiCegarLoop]: Abstraction has 48 states and 57 transitions. [2019-12-07 18:13:32,264 INFO L591 BuchiCegarLoop]: Abstraction has 48 states and 57 transitions. [2019-12-07 18:13:32,264 INFO L424 BuchiCegarLoop]: ======== Iteration 15============ [2019-12-07 18:13:32,264 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 57 transitions. [2019-12-07 18:13:32,264 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 18:13:32,264 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:13:32,264 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:13:32,264 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:13:32,264 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 18:13:32,265 INFO L794 eck$LassoCheckResult]: Stem: 3473#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3470#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 3471#L532 assume !(main_~length1~0 < 1); 3472#L532-2 assume !(main_~length2~0 < 1); 3466#L535-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 3467#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 3478#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 3479#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 3480#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 3494#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 3476#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 3477#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 3452#L541-4 main_~i~1 := 0; 3453#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 3464#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 3465#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 3468#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 3483#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 3469#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 3461#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 3462#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 3485#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 3456#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 3481#L520-3 assume !substring_#t~short6;havoc substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5; 3458#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 3459#L524 assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 3463#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 3449#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 3451#L520-5 [2019-12-07 18:13:32,265 INFO L796 eck$LassoCheckResult]: Loop: 3451#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 3454#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 3474#L520-3 assume !!substring_#t~short6;havoc substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;substring_#t~post7.base, substring_#t~post7.offset := substring_~pt~0.base, substring_~pt~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_#t~post7.base, 1 + substring_#t~post7.offset;havoc substring_#t~post7.base, substring_#t~post7.offset;substring_#t~post8.base, substring_#t~post8.offset := substring_~ps2~0.base, substring_~ps2~0.offset;substring_~ps2~0.base, substring_~ps2~0.offset := substring_#t~post8.base, 1 + substring_#t~post8.offset;havoc substring_#t~post8.base, substring_#t~post8.offset; 3451#L520-5 [2019-12-07 18:13:32,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:32,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1373433627, now seen corresponding path program 5 times [2019-12-07 18:13:32,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:32,265 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107164052] [2019-12-07 18:13:32,265 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:32,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:32,287 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:32,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:32,288 INFO L82 PathProgramCache]: Analyzing trace with hash 87489, now seen corresponding path program 4 times [2019-12-07 18:13:32,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:32,288 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81546053] [2019-12-07 18:13:32,288 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:32,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:32,292 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:32,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:32,293 INFO L82 PathProgramCache]: Analyzing trace with hash -2102662563, now seen corresponding path program 3 times [2019-12-07 18:13:32,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:13:32,293 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866168113] [2019-12-07 18:13:32,293 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:13:32,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:32,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:13:32,318 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:13:33,714 WARN L192 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 264 DAG size of output: 197 [2019-12-07 18:13:33,945 WARN L192 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-12-07 18:13:33,947 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:13:33,947 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:13:33,947 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:13:33,947 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:13:33,947 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:13:33,947 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:33,948 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:13:33,948 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:13:33,948 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-2.i_Iteration15_Lasso [2019-12-07 18:13:33,948 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:13:33,948 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:13:33,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:33,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:33,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:33,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:33,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:33,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:33,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:33,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:33,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:33,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:33,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:33,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:33,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:33,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:33,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:33,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:33,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:33,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:33,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:33,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:33,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:33,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:34,400 WARN L192 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 101 [2019-12-07 18:13:34,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:34,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:34,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:34,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:34,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:34,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:13:35,106 WARN L192 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2019-12-07 18:13:35,213 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:13:35,213 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 142 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 142 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,218 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:35,219 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:35,219 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:35,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:35,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:35,219 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:35,219 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:35,219 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:35,220 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 143 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 143 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,228 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:35,229 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:35,229 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:35,229 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:35,229 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:35,229 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:35,229 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:35,229 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:35,230 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 144 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 144 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,233 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:35,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:35,234 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:35,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:35,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:35,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:35,235 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:35,235 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:35,236 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 145 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 145 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,239 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:35,240 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:35,240 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:35,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:35,240 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:35,241 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:35,241 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:35,241 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:35,242 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 146 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 146 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,245 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:35,246 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:35,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:35,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:35,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:35,247 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:35,247 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:35,249 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 147 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 147 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,252 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:35,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:35,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:35,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:35,253 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:35,254 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:35,254 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:35,256 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 148 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 148 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,260 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:35,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:35,261 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:35,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:35,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:35,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:35,261 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:35,261 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:35,262 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 149 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 149 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,266 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:35,267 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:35,267 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:35,267 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:35,267 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:35,268 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:35,268 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:35,271 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 150 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 150 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,274 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:35,275 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:35,275 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:35,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:35,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:35,276 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:35,276 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:35,276 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:35,278 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 151 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 151 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,281 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:35,282 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:35,282 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:35,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:35,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:35,282 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:35,283 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:35,283 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:35,284 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 152 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 152 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,288 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:35,289 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:35,289 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:35,289 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:35,289 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:35,289 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:35,289 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:35,290 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:35,290 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 153 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 153 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,294 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:35,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:35,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:35,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:35,295 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:35,296 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:35,297 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:35,299 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 154 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 154 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,303 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:35,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:35,304 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:35,305 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:35,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:35,305 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:35,305 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:35,305 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:35,306 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 155 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 155 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,309 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:35,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:35,310 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:35,311 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:35,311 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:35,311 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:35,311 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:35,311 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:35,312 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 156 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 156 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,315 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:35,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:35,316 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:35,316 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:35,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:35,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:35,316 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:35,317 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:35,318 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 157 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 157 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,321 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:35,323 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:35,323 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:35,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:35,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:35,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:35,323 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:35,323 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:35,325 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 158 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 158 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,328 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:35,330 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:35,330 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:35,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:35,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:35,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:35,330 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:35,330 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:35,331 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 159 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 159 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,334 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:35,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:35,335 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:35,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:35,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:35,336 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:35,336 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:35,336 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:35,337 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 160 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 160 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,340 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:35,341 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:35,341 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:35,341 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:35,341 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:35,342 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:35,342 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:35,344 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 161 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 161 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,348 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:35,348 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:35,349 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:35,349 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:35,349 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:35,349 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:35,349 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:35,349 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:35,350 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 162 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 162 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,353 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:35,354 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:35,354 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:13:35,354 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:35,354 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:35,354 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:35,355 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:13:35,355 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:13:35,356 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 163 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 163 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,359 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:35,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:35,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:35,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:35,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:35,361 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:35,362 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:35,364 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 164 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 164 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,367 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:35,368 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:35,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:35,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:35,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:35,370 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:35,370 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:35,374 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 165 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 165 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,378 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:35,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:35,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:35,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:35,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:35,384 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:35,385 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:35,396 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 166 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 166 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,400 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:35,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:35,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:35,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:35,401 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:35,402 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:35,403 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:35,407 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 167 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 167 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,410 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:35,411 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:35,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:35,411 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:35,411 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:35,411 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:35,412 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:35,414 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 168 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 168 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,417 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:35,418 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:35,418 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:35,418 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:35,418 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:35,419 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:35,419 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:35,421 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 169 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 169 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,424 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:35,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:35,426 INFO L203 nArgumentSynthesizer]: 12 stem disjuncts [2019-12-07 18:13:35,426 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-12-07 18:13:35,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:35,440 INFO L401 nArgumentSynthesizer]: We have 60 Motzkin's Theorem applications. [2019-12-07 18:13:35,440 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-12-07 18:13:35,479 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 170 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 170 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,483 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:13:35,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:13:35,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:13:35,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:13:35,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:13:35,492 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:13:35,492 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:13:35,511 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:13:35,550 INFO L443 ModelExtractionUtils]: Simplification made 22 calls to the SMT solver. [2019-12-07 18:13:35,550 INFO L444 ModelExtractionUtils]: 34 out of 61 variables were initially zero. Simplification set additionally 24 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89f3c0bf-902b-43a3-9d28-6873b0b16a27/bin/uautomizer/z3 Starting monitored process 171 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 171 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:13:35,553 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:13:35,554 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 18:13:35,554 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:13:35,555 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_substring_~ps2~0.offset, v_rep(select #length ULTIMATE.start_substring_~ps2~0.base)_5) = -1*ULTIMATE.start_substring_~ps2~0.offset + 1*v_rep(select #length ULTIMATE.start_substring_~ps2~0.base)_5 Supporting invariants [] [2019-12-07 18:13:35,681 INFO L297 tatePredicateManager]: 37 out of 37 supporting invariants were superfluous and have been removed [2019-12-07 18:13:35,682 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 18:13:35,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:35,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:35,709 INFO L264 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:13:35,710 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:13:35,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:35,716 INFO L264 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 18:13:35,717 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:13:35,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:13:35,724 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 18:13:35,724 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 57 transitions. cyclomatic complexity: 15 Second operand 4 states. [2019-12-07 18:13:35,735 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 57 transitions. cyclomatic complexity: 15. Second operand 4 states. Result 59 states and 72 transitions. Complement of second has 7 states. [2019-12-07 18:13:35,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 18:13:35,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 18:13:35,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2019-12-07 18:13:35,736 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 28 letters. Loop has 3 letters. [2019-12-07 18:13:35,736 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:13:35,736 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 18:13:35,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:35,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:35,763 INFO L264 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:13:35,763 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:13:35,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:35,769 INFO L264 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 18:13:35,769 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:13:35,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:13:35,776 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 18:13:35,777 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 57 transitions. cyclomatic complexity: 15 Second operand 4 states. [2019-12-07 18:13:35,787 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 57 transitions. cyclomatic complexity: 15. Second operand 4 states. Result 59 states and 72 transitions. Complement of second has 7 states. [2019-12-07 18:13:35,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 18:13:35,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 18:13:35,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2019-12-07 18:13:35,788 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 28 letters. Loop has 3 letters. [2019-12-07 18:13:35,788 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:13:35,788 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 18:13:35,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:13:35,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:35,818 INFO L264 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:13:35,819 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:13:35,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:13:35,825 INFO L264 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 18:13:35,826 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:13:35,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:13:35,834 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 18:13:35,834 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 57 transitions. cyclomatic complexity: 15 Second operand 4 states. [2019-12-07 18:13:35,847 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 57 transitions. cyclomatic complexity: 15. Second operand 4 states. Result 65 states and 78 transitions. Complement of second has 6 states. [2019-12-07 18:13:35,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 18:13:35,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 18:13:35,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2019-12-07 18:13:35,848 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 28 letters. Loop has 3 letters. [2019-12-07 18:13:35,848 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:13:35,848 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 31 letters. Loop has 3 letters. [2019-12-07 18:13:35,848 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:13:35,848 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 28 letters. Loop has 6 letters. [2019-12-07 18:13:35,849 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:13:35,849 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 78 transitions. [2019-12-07 18:13:35,849 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:13:35,849 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 0 states and 0 transitions. [2019-12-07 18:13:35,850 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 18:13:35,850 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 18:13:35,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 18:13:35,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:13:35,850 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:13:35,850 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:13:35,850 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:13:35,850 INFO L424 BuchiCegarLoop]: ======== Iteration 16============ [2019-12-07 18:13:35,850 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:13:35,850 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:13:35,850 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 18:13:35,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 06:13:35 BoogieIcfgContainer [2019-12-07 18:13:35,855 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 18:13:35,855 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:13:35,855 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:13:35,855 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:13:35,856 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:13:03" (3/4) ... [2019-12-07 18:13:35,858 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:13:35,858 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:13:35,859 INFO L168 Benchmark]: Toolchain (without parser) took 33263.95 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 504.9 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -139.3 MB). Peak memory consumption was 365.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:13:35,859 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:13:35,860 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.85 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.4 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -139.0 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:13:35,860 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:13:35,860 INFO L168 Benchmark]: Boogie Preprocessor took 19.26 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:13:35,860 INFO L168 Benchmark]: RCFGBuilder took 220.60 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:13:35,861 INFO L168 Benchmark]: BuchiAutomizer took 32693.38 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 410.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -27.5 MB). Peak memory consumption was 383.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:13:35,861 INFO L168 Benchmark]: Witness Printer took 3.09 ms. Allocated memory is still 1.5 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:13:35,862 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 294.85 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.4 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -139.0 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.26 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 220.60 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 32693.38 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 410.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -27.5 MB). Peak memory consumption was 383.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.09 ms. Allocated memory is still 1.5 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 15 terminating modules (7 trivial, 6 deterministic, 2 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * i + length2 and consists of 4 locations. One deterministic module has affine ranking function -2 * ps + 3 and consists of 7 locations. One deterministic module has affine ranking function unknown-#length-unknown[pt] + -1 * ps2 and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[ps2] + -1 * ps2 and consists of 8 locations. One deterministic module has affine ranking function -1 * ps + unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] and consists of 6 locations. One nondeterministic module has affine ranking function -1 * ps2 + length2 and consists of 18 locations. One nondeterministic module has affine ranking function -1 * ps2 + unknown-#length-unknown[ps2] and consists of 4 locations. 7 modules have a trivial ranking function, the largest among these consists of 21 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 32.6s and 16 iterations. TraceHistogramMax:3. Analysis of lassos took 22.6s. Construction of modules took 0.9s. Büchi inclusion checks took 8.9s. Highest rank in rank-based complementation 3. Minimization of det autom 6. Minimization of nondet autom 9. Automata minimization 0.0s AutomataMinimizationTime, 14 MinimizatonAttempts, 110 StatesRemovedByMinimization, 11 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 67 states and ocurred in iteration 9. Nontrivial modules had stage [6, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 320 SDtfs, 875 SDslu, 735 SDs, 0 SdLazy, 1171 SolverSat, 191 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc4 concLT0 SILN0 SILU3 SILI0 SILT0 lasso8 LassoPreprocessingBenchmarks: Lassos: inital373 mio100 ax106 hnf99 lsp90 ukn62 mio100 lsp49 div100 bol100 ite100 ukn100 eq186 hnf89 smp96 dnf206 smp84 tf100 neg94 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 760ms VariablesStem: 5 VariablesLoop: 6 DisjunctsStem: 6 DisjunctsLoop: 12 SupportingInvariants: 24 MotzkinApplications: 456 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...